Storm slabs will likely be reactive and require patience and time to settle and stabilize. These may be extra touchy on lee slopes where wind loading has built deeper slabs. Simple, low angle terrain away from overhead hazard is a good choice right now.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":120,"length":10,"key":0}],"data":{}},{"key":"58qce","text":"Loose-dry sluffing from steep terrain is likely, especilly when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LI
Above freezing temperatures and periods of heavy rain may trigger loose wet avalanches. Pinwheeling and rollerballs are good indicators of this type of instability. Avoid steep slopes with saturated snow, as wet loose avalanches can be surprisingly destructive due to their density.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
Rain increasingly stresses the snowpack by adding load and heat. Avalanche hazard will increase as more and more rain saturates the snowpack.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e9f1r","text":"15-25 cm of new snow in the Pine Pass area has formed LOCALIZED storm slabs reactive to human triggers. Conservative terrain choices will be especially important in areas that received more than 15 cm. of new snow.","type":"unstyled","depth":0,"inlineSty
20-40 cm of new snow sits on a weak layer of surface hoar. This new snow combined with southwest winds will develop slabs that will become increasingly reactive through the day.
The new snow is not expected to bond well with old surfaces such as crusts and surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":16,"length":3,"style":"BOLD"}],"entityRanges":[{"offset":79,"length":13,"key":0}],"data":{}},{"key":"6pint","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fqe17","text":"Small loose dry sluffing may be observed out of steep terrain, especially with human traffic. Look for signs of instability like shooting cracks to identify where the snow is starting to show slab character.  Small storm slabs may be triggerable in freshly wind loaded lee features at upper elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":129,"length":15,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"L
Rain has saturated the snowpack. With freezing levels spiking above mountain top late Monday and ongoing rain, a wet loose hazard will persist as long as the snowpack is moist or wet.
A wet and warm storm will drop around 10 cm by Monday morning and upwards of 25-50 cm through the day. Along with strong, southwesterly winds and spiking freezing levels, expect rapid storm slab development and avalanche hazard increasing through the day.
The new snow is not expected to bond well with old surfaces such as crusts and surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":16,"length":3,"style":"BOLD"}],"entityRanges":[{"offset":79,"length":13,"key":0}],"data":{}},{"key":"8dhfr","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9353p","text":"Small loose dry sluffing may be observed out of steep terrain, especially with human traffic. Look for signs of instability like shooting cracks to identify where the snow is starting to show slab character.  Small storm slabs may be triggerable in freshly wind loaded lee features at upper elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":129,"length":15,"key":1}],"data":{}},{"key":"aap6g","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"L
10-20 cm of new snow sits on a weak layer of surface hoar.  Expect this layer to be most reactive in wind loaded terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":45,"length":12,"key":0}],"data":{}},{"key":"4dasn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bnsik","text":"Some areas near Blue River likely have up to 40 cm of new snow on this layer, and it will be most reactive in places like this.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutab
elow treeline (& possibly up to 2300m): High freezing levels and rain events created a rain crust (or two).  New snow is not bonding well to these near surface rain crusts. Rain crusts are more prominent in the southern / central Purcells.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":15,"style":"BOLD"},{"offset":40,"length":1,"style":"BOLD"},{"offset":107,"length":3,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"entfp","text":"At and near tree line, the new snow rests on widespread layer of large surface hoar crystals.  Shooting cracks, remote triggering and settlements (whumphing) are classic signs of instability that buried surface hoar is present and potentially reactive.  Snow that has been wind affected may be most reactive.  We suspect this Surface Hoar is most intact in areas that saw little rain (& hence have no THICK rain crust).","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":21,"style":"BOLD"}],"entityRanges":[{"offset":71,"length":12,"key":0},{"offset":95,"length":15,"key":1},{"offset":170,"length":20,"key":2}],"data":{}},{"key":"9gvta","text":"At upper elevations where recent winds transported new snow, storm slabs formed in lee features (Northerly and Easterly slopes) and will be especially touchy where they sit over a crust.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":20,"style":"BOLD"}],"entityRanges":[{"offset":180,"length":5,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary/#shooting-cracks"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=remote#signs-of-instability"}},"3":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https
20-40 cm of new snow sits on a weak layer of surface hoar. This new snow combined with southwest winds has promoted slab formation, especially at higher elevations.
Recent and ongoing snow & strong to extreme winds (southwest and southeast) are forming fresh storm slabs. Watch for fat deposits in leeward terrain features such as ridge crests and roll-overs.  Recent winds have been predominately from the Southern quadrant so expect wind loading to be the most prominant on northeast to northwesterly slopes.  However, some areas have reported northeasterly winds resulting in the possibility of reverse loading.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":133,"length":7,"key":0}],"data":{}},{"key":"8qe4t","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LI
15-35cm of new snow is forecast to fall over the region by midday Thursday.  New snow is falling with moderate to strong southwest winds and the resulting slabs will likely be the most reactive in wind loaded areas in the lee of ridgecrests.  New snow will also be settling into a soft slab with warm temperatures even in wind sheltered terrain.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":222,"length":3,"key":0}],"data":{}}],"entityMap":{"0":{"type"
elow treeline (& possibly up to 2300m): High freezing levels and rain events created a rain crust (or two).  New snow is not bonding well to these near surface rain crusts.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":15,"style":"BOLD"},{"offset":40,"length":1,"style":"BOLD"},{"offset":107,"length":3,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"entfp","text":"At and near tree line, the new snow rests on widespread layer of large surface hoar crystals.  Shooting cracks, remote triggering and settlements (whumphing) are classic signs of instability that buried surface hoar is present and potentially reactive. ","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":21,"style":"BOLD"}],"entityRanges":[{"offset":71,"length":12,"key":0},{"offset":95,"length":15,"key":1},{"offset":170,"length":20,"key":2}],"data":{}},{"key":"9gvta","text":"At upper elevations where recent winds transported new snow, storm slabs formed in lee features (Northerly and Easterly slopes) and will be especially touchy where they sit over a crust.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":20,"style":"BOLD"}],"entityRanges":[{"offset":180,"length":5,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary/#shooting-cracks"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=remote#signs-of-instability"}},"3":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https
20 to 40 cm of new snow fell Monday night with moderate north wind. Watch for the formation of fresh sensitive slabs in the new snow that will likely continue to be sensitive to human triggering.
Below treeline and up to 2200m: High freezing levels and rain events created a rain crust (or two).  New snow is not bonding well to these near surface rain crusts.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":32,"style":"BOLD"},{"offset":98,"length":3,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"4dtb1","text":"At and near tree line, the 20-40cm of new snow rests on widespread layer of large surface hoar crystals.  Shooting cracks, remote triggering and settlements (whumphing) are classic signs of instability that buried surface hoar is present and potentially reactive. ","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":21,"style":"BOLD"}],"entityRanges":[{"offset":82,"length":12,"key":0},{"offset":106,"length":15,"key":1},{"offset":181,"length":20,"key":2}],"data":{}},{"key":"apfi","text":"At upper elevations where recent winds transported new snow, storm slabs formed in lee features (Northerly and Easterly slopes) and will be especially touchy where they sit over a crust.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":20,"style":"BOLD"}],"entityRanges":[{"offset":180,"length":5,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary/#shooting-cracks"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=remote#signs-of-instability"}},"3":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https
Additional 30-50 cm recent new snow in the North Shore mountains overnight Wednesday will bring total snow fall amounts in the past week to 60-110 cm.  This snow has shown reactivity on a variety of sliding layers, most notably a series of crusts from melt freeze or rain events.   New snow will be particularly reactive where recent southwestern winds have created wind loaded pockets just below ridge crests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3o7eq","text":"
New storm and wind slab problems exist after Monday night's storm. In the Blue River and Valemount areas 30+ cm of snow sits above crusts and a widespread layer of large surface hoar. This has likely formed very reactive storm slabs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":170,"length":12,"key":0}],"data":{}},{"key":"2jm69","text":"There was less snow in other areas, but strong wind would have left reactive slabs on wind-loaded slopes and on steep convexities. These slabs may also sit above reactive weak layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutab
Below treeline (& possibly up to 2400m): High freezing levels and rain events created a rain crust (or two).  New snow is not bonding well to these near surface rain crusts.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":15,"style":"BOLD"},{"offset":39,"length":2,"style":"BOLD"},{"offset":107,"length":3,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"en5ue","text":"At and near tree line, the 20-40cm of new snow rests on widespread layer of large surface hoar crystals.  Shooting cracks, remote triggering and settlements (whumphing) are classic signs of instability that buried surface hoar is present and potentially reactive. ","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":21,"style":"BOLD"}],"entityRanges":[{"offset":82,"length":12,"key":0},{"offset":106,"length":15,"key":1},{"offset":181,"length":20,"key":2}],"data":{}},{"key":"2dihu","text":"At upper elevations where recent winds transported new snow, storm slabs formed in lee features (Northerly and Easterly slopes) and will be especially touchy where they sit over a crust.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":20,"style":"BOLD"}],"entityRanges":[{"offset":180,"length":5,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary/#shooting-cracks"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=remote#signs-of-instability"}},"3":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https
0 to 35 cm of new snow fell Monday night combined with moderate northerly wind. Watch for the formation of fresh sensitive slabs in the new snow that will likely continue to be sensitive to human triggering.
Storm and wind slab problems likely exist at elevations above the rain crust. They are most concerning around Blue River and Valemount where 30+ cm of snow may sit above sun crusts and a widespread layer of large surface hoar. There was less snow in Northern areas, but strong wind would have left reactive slabs on wind-loaded slopes and on steep convexities.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":213,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutab
The new storm snow is building reactive storm slabs. Strong southwest wind is forming deeper slabs on leeward slopes that could produce larger avalanches. Loose-dry sluffing will likely occur from steep terrain features. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LI
olar triggering of dry snow is possible during sunny periods Saturday. Storm slabs are most likely to remain reactive where they sit over a crust or surface hoar. You can investigate this interface in a number of ways including:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ek7rd","text":"digging down below the storm snow to have a look at what it is sitting on","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2e9pt","text":"doing a quick hand shear test ","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":14,"length":15,"key":0}],"data":{}},{"key":"2t21d","text":"look for signs of instability like shooting cracks and whumping while you travel","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":9,"length":20,"key":1},{"offset":35,"length":15,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=hand+shear#hand-shear-test"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=signs#signs-of-instability"}},"2":{"type":"LINK","m
New snow and wind will set up reactive storm and wind slabs on steep slopes during stormy conditions.  Recent and ongoing snow & moderate to strong winds continue to form fresh storm slabs that could potentially be on top of buried slabs in wind affected terrain.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2icev","text":"Watch for fat deposits in leeward terrain features such as ridge crests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":26,"length":7,"key":0}],"data":{}},{"key":"f0pci","text":"Remember that smaller loose stuffs and storm slabs may trigger deeper weak layers in a  step down event.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":88,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":"LINK","mutabilit
The new storm snow is building reactive storm slabs. Strong southwest wind is forming deeper slabs on leeward slopes that could produce larger avalanches. Loose-dry sluffing will likely occur from steep terrain features. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LI
10-15 cm of new snow sits on a weak layer of surface hoar.  Expect this layer to be most reactive in wind loaded terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":45,"length":12,"key":0}],"data":{}},{"key":"4dasn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bnsik","text":"Some areas near Blue River likely have up to 40 cm of new snow on this layer, and it will be most reactive in places like this.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutab
Recent storm snow and strong southwest wind have built reactive storm slabs. Large avalanches are expected, especially where they sit above a crust buried in early December.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4kuc9","text":" ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7vgj5","text":"
Storm slabs will likely be reactive on Tuesday producing large and widespread avalanche activity. Simple, low angle terrain away from overhead hazard is a good choice right now.
Storm slab avalanche activity is expected to increase as 20-30 cm of recent snow settles to form a cohesive slab over a layer of weak crystals ontop of a crust. Be especially cautious of fat, wind loaded pockets in north-northwest terrain features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"37ge8","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2iko1","text":"There is also potential for loose snow avalanches on steep slopes where the sun touches dry snow for the first time.
Heavy snowfall Friday and Friday night will be creating reactive storm slab and wind slabs.  Cooling temperatures Saturday morning will help this new snow to bond.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d0bh7","text":"New snow will remain reactive where southwestern winds have created wind loaded pockets just below ridge crests and roll-overs.  A period or rapid loading (up to 10cm/hour) is forecast for Friday afternoon with rising freezing levels and strong to extreme winds.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3o7eq","text":"Remember to avoid any areas that have large steep avalanche slopes above you: large destructive avalanches can run far into flat terrain.  In other words, avoid overhead hazard.
Look for the formation of fresh, sensitive storm slabs as strong southwest wind and 15 to 25 cm of new snow come together Saturday night into Sunday. This snow will add to the 30 to 50 cm that already rests on the surface hoar.
Storm snow with strong southwest wind have formed reactive storm slabs. Recent snowfall amounts vary widely across the region.
Storm and wind slab problems may exist at elevations above 1500m (above the rain crust). Storm slabs will be most concerning around Blue River and Valemount where 30+ cm of snow may sit above sun crusts and a widespread layer of large surface hoar. There was less snow in Northern areas, but strong wind would have left reactive slabs on wind-loaded slopes and on steep convexities.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":235,"length":12,"key":0}],"data":{}},{"key":"c35bv","text":"Watch for stuffing as your transition to steep terrain and if the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutab
20-40 cm of recent fresh snow with strong southwest winds has likely formed reactive storm slabs. These will probably be very easy to trigger on wind loaded slopes.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":145,"length":18,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabil
Look for the formation of fresh, sensitive storm slabs as strong southwest wind and 15 to 25 cm of new snow come together Saturday night into Sunday.  This snow will add to the 30 to 40 cm that already rests on the surface hoar.
Recent and ongoing storm snow with strong southwest winds has formed reactive storm slabs. Large avalanches are expected, especially where they sit above a crust buried in early December.
New storm snow has likely formed reactive slabs. Strong southwest wind will create deeper slabs on leeward slopes that could produce larger avalanches. Avalanches may entrain moist snow if the runouts extend into below treeline elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":98,"length":15,"key":0},{"offset":193,"length":7,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"typ
Intermittent snow and flurries continue to stack up, 20-40 cm of recent and fresh snow sits on a weak layer of surface hoar.  Expect this layer to be most reactive in wind loaded terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":111,"length":12,"key":0}],"data":{}},{"key":"4dasn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bnsik","text":"Some areas near Blue River likely have up to 40-60 cm of new snow on this layer, and it will be most reactive in places like this.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutab
Fresh storm slabs building Wednesday and Thursday will likely be reactive, especially to human triggers. Due to the timing of the storm, the avalanche hazard could increase throughout the day. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6v632","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"23tvj","text":"
Intermittent snow and flurries continue to stack up, 30-40 cm fresh snow overlies a layer of surface hoar. Reactive slabs have formed in the storm snow, expect to find increasingly reactive slabs as storm snow accumulates, especially in wind-loaded areas.
Intermittent snow and flurries continue to stack up, 30-50 cm fresh snow overlies a layer of surface hoar. Reactive slabs have formed in the storm snow, expect to find increasingly reactive slabs as snow continues to accumulate, especially in wind-loaded areas.
Intermittent snow and flurries continue to stack up, 30-40 cm fresh snow overlies a layer of surface hoar. Reactive slabs have formed in the storm snow, expect to find increasingly reactive slabs as snow continues to accumulate, especially in wind-loaded areas.
New snow and recent strong winds have created  storm slabs that will likely still be easy to trigger, especially in wind loaded areas and at higher elevations.\n
Intermittent snow and flurries continue to stack up, 20-40 cm fresh snow overlies a layer of surface hoar. Reactive slabs have formed in the storm snow, expect to find increasingly reactive slabs as storm snow accumulates, especially in wind-loaded areas.
20-40 cm of snow may sit above a layer of surface hoar and/or sun crusts at alpine and treeline elevations. This problem is most concerning in eastern and northern parts of the region (e.g. the Selkirks and northern Monashees). Elsewhere rain crusts have likely modified and covered these weak layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":42,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
New snow and wind will set up reactive storm and wind slabs on steep slopes during stormy conditions. Heavy snow areas such as the Coquihalla will be most likely to see avalanche activity.
We could see as much as 20 cm of new snow Monday night into Tuesday with strong north wind. Watch for the formation of fresh sensitive slabs in the new snow.
A weak layer of surface hoar and/or faceted grains overly a hard melt-freeze crust around 30 to 60 cm deep. The likelihood of triggering this layer will increase as Monday's storm loads it. An avalanche cycle is expected to occur on it by Tuesday morning, likely during periods of rapid snow loading. Riders have already triggered large avalanches on this layer, and the consequence of doing so will only increase as it gets deeper.
Heavy snowfall amounts (20-50cm) are forecast for Friday accompanied by strong to extreme southwest winds, which will form touchy fresh storm slabs.  Avalanche conditions are forecast to deteriorate during the day on Friday with forecast snowfall amounts and wind.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3mvo6","text":"Watch for fat deposits in leeward terrain features such as ridge crests and roll-overs.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":26,"length":7,"key":0}],"data":{}},{"key":"86jhs","text":"Recent winds have been predominately from the Southern quadrant so expect previous wind loading to be the most prominant on northeast to northwesterly slopes.  However, some areas have reported northeasterly winds resulting in the possibility of reverse loading.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8qe4t","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LI
Heavy snowfall Friday and Friday night will be creating reactive storm slab and wind slabs.  Cooling temperatures Saturday morning will help this new snow to bond.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d0bh7","text":"New snow will remain reactive where southwestern winds have created wind loaded pockets just below ridge crests and roll-overs.  A period or rapid loading (up to 10cm/hour) is forecast for Friday afternoon with rising freezing levels and strong to extreme winds.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3o7eq","text":"Remember to avoid any areas that have large steep avalanche slopes above you: large destructive avalanches can run far into flat terrain.  In other words, avoid overhead hazard.
20-40 cm of snow may sit above a layer of surface hoar and/or sun crusts at alpine and treeline elevations. This problem is most concerning in eastern and northern parts of the region (e.g. the Selkirks and northern Monashees). Elsewhere rain crusts have modified and covered these weak layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":42,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
New snow and wind will set up reactive storm and wind slabs on steep slopes during stormy conditions.  Recent and ongoing snow & moderate to strong winds continue to form fresh storm slabs that could potentially be on top of buried slabs in wind affected terrain.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2icev","text":"Watch for fat deposits in leeward terrain features such as ridge crests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":26,"length":7,"key":0}],"data":{}},{"key":"4o121","text":"Avalanche conditions are forecast to deteriorate during the day on Friday with forecast snowfall amounts and potentially strong to extreme wind speeds in the afternoon.  Heavy snow areas such as the Coquihalla will be most likely to see avalanche activity.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LI
Recent snow fall in the past week is 30-60cm, which is rapidly settling with warm temperatures into a soft slab. Assess how each layer of new storm snow is bonding to previous layers.  Additional snowfall on Friday afternoon will only add to this storm slab.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"euo8p","text":"New snow is falling with moderate to strong southwest winds and the resulting slabs will likely be the most reactive in wind loaded areas in the lee of ridgecrests.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":145,"length":3,"key":0}],"data":{}}],"entityMap":{"0":{"type"
There may be up to 50 cm of new snow by Wednesday afternoon, likely resulting in widespread storm slab avalanches.
New snow and strong southwest wind are forming fresh storm slabs. Watch for fat deposits in leeward terrain features such as ridge crests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":7,"key":0}],"data":{}},{"key":"9gb4j","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"svri","text":"Storm slabs may be particularly reactive where they accumulate over a weak layer such as surface hoar or a crust now buried 20-50 cm deep. The crust offers a slick bed surface for avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8qe4t","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LI
20-40 cm falling on the North Shore mountains by end of the day Tuesday brings storm totals to 30-60 cm. Storm slabs may be especially reactive in wind sheltered terrain where storm snow sits on surface hoar. Caution around wind loaded pockets just below ridge crests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":195,"length":13,"key":0}],"data":{}},{"key":"3o7eq","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type
Snow is expected to accumulate over the day with associated strong southwest wind and/or easterly outflow winds. The most snow is forecast in the far south with substantially less accumulation in the northern half of the region.
Intermittent snow and flurries continue to stack up, recent and fresh snow sits on a weak layer of surface hoar down 20-40 cm. Expect this layer to be most reactive in wind loaded terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":99,"length":12,"key":0}],"data":{}},{"key":"4dasn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bnsik","text":"Some areas near Blue River likely have up to 40-60 cm of new snow on this layer, and it will be most reactive in places like this.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutab
Around 20 to 30 cm of precipitation is forecast for Saturday night, which will start as snow but is forecast to transition to rain below around 1900 m. The snow surface is expected to be wet early-morning and freeze into a hard melt-freeze crust. This snow will accumulate onto a hard crust and may not bond well to it; use particular caution in steep terrain features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2u40e","text":"It is possible you may find dry snow at the highest mountain tops in the region. Should you find a dry snow surface up high, expect wind slabs to have formed due to strong southwest wind.
Snow is expected to accumulate over the day with an associated strong southwest wind. Heavy snow is forecast in the far south with substantially less accumulation in the northern half of the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7vgj5","text":"
15-50 cm of snow may sit above a layer of surface hoar and/or crusts. This layer will likely be reactive to human triggers in areas with 30+ cm of snow on top of the weak layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":42,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
Recent and ongoing snow & strong to extreme winds (southwest and southeast) are forming fresh storm slabs. Watch for fat deposits in leeward terrain features such as ridge crests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":133,"length":7,"key":0}],"data":{}},{"key":"9gb4j","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"svri","text":"Storm slabs may be particularly reactive where they accumulate over a weak layer such as surface hoar or a crust now buried 30-70 cm deep. The crust offers a slick bed surface for avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8qe4t","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LI
Additional 20-50 cm recent new snow in the North Shore mountains Monday through Wednesday brings total snow fall amounts in the past week to 40-70 cm.  This snow has shown reactivity on a variety of sliding layers, including thin crusts, thick crusts and buried weak  surface hoar.  New snow will be particularly reactive where recent southwestern winds have created wind loaded pockets just below ridge crests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":268,"length":13,"key":0}],"data":{}},{"key":"3o7eq","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type
Storm slabs will be most reactive in the Coquihalla Pass area where 20-30cm are forecast to fall overnight Tuesday and another 5-10cm on Wednesday.  This snow will be affected by moderate to strong southwestern winds. Watch for fat deposits in leeward terrain features such as ridge crests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":244,"length":7,"key":0}],"data":{}},{"key":"3kbvq","text":"In the Duffy, where new snowfall levels are much lighter, buried wind slabs will be most reactive on Northeast to Easterly aspects. New inputs of snow amid strong southwest winds are forming fresh wind slabs at upper elevations. Watch for freshly wind loaded pockets under ridgecrests and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LI
20-40 cm of new snow sits on a weak layer of surface hoar. This new snow combined with southwest winds has likely created slabs that may be easy to trigger.
20-50 cm of recent snow likely sits on a few weak layers. Southwest winds have probably promoted slab formation, especially at higher elevations.
The new storm snow is building reactive storm slabs. Strong southwest wind is forming deeper slabs on leeward slopes that could produce larger avalanches, especially where a buried crust exists. Loose-dry sluffing will likely occur from steep terrain features. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LI
With incoming snow and wind loading avalanches on 30 degree or steeper slopes (moderate angle) where more than 30 accumulates remain very likely, especially if there's surface hoar below. Wind loaded slopes are especially suspect.
Storm slabs will likely be reactive on Tuesday producing large and widespread avalanche activity. Open areas that are more exposed to wind have been producing more avalanches. Simple, low angle terrain away from overhead hazard is a good choice right now.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a6nhs","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"617dt","text":"
Recent storm snow and strong southwest wind have built reactive storm slabs. Large avalanches are expected, especially where they sit above a crust buried in early December.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4kuc9","text":" ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7vgj5","text":"
New snow from Friday afternoon & overnight (15-40cm) fell with strong to extreme southwest winds, which will form touchy fresh storm slabs.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3mvo6","text":"Watch for fat deposits in leeward terrain features such as ridge crests and roll-overs. Anticipate wind affect may extend much deeper into bowls and across features due to high wind levels. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":26,"length":7,"key":0}],"data":{}},{"key":"86jhs","text":"Remember that smaller loose stuffs and storm slabs may trigger deeper weak layers in a  step down event.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":88,"length":9,"key":1}],"data":{}},{"key":"8qe4t","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":"LINK","mutabilit
A weak layer of surface hoar and/or faceted grains overly a hard melt-freeze crust around 30 to 60 cm deep. The likelihood of triggering this layer is expected to be elevated on Sunday due to more snow load. Riders have triggered large avalanches on this layer, and the consequence of doing so will only increase as it gets deeper.
The snowpack isn't getting much time to adjust to recent snowfall and wind as a new wave of precipitation is set to hit the region Monday afternoon. Simple, low angle terrain away from overhead hazard is a good choice right now.
Storm slabs may continue to be reactive to human triggers. On open slopes in the alpine and treeline this may present more like a windslab problem, but even in more sheltered zones the snow needs some more time to adjust to recent loads.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6v632","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"23tvj","text":"
e're expecting 15 to 35 cm of new snow Monday night into Tuesday with  strong north wind. Watch for the formation of fresh sensitive slabs in  the new snow that will likely be sensitive to human triggering all day  Tuesday.
This storm may well push the persistent slab over the tipping point resulting in large and surprisingly touchy slab avalanches.  The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.  Wind exposed features are expected to be particularly volatile.
On open slopes in the alpine and treeline this may present more like a windslab problem, but even in more sheltered zones the snow needs some more time to adjust to recent loads. In some areas storm slabs have been stepping down to early December crust layer.
Around 20 cm of snow fell on Monday, with locally higher amounts possible. This snow may overly a hard melt-freeze crust up to around 1500 m. This snow may slide easily on the crust, either as loose snow or a slab. Above around 1500 m, thicker wind slabs may be found. These slabs may take a couple days to stabilize.
The snowpack isn't getting much time to adjust to recent snowfalls as a new wave of precipitation is set to hit the region Monday afternoon. Open areas that are more exposed to wind have been producing more avalanches. Simple, low angle terrain away from overhead hazard is a good choice right now.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a6nhs","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"617dt","text":"
This layer was touchy through the weekend producing large to very large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.  Wind exposed features are expected to be particularly volatile.
Monday's storm is forecast to bring anywhere from 20 to 40 cm of snow to the south of the region. Expect avalanche activity during periods of rapid loading. The safe bet will be to avoid exposure to avalanche terrain once you notice 2+ cm of snow accumulate per hour.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dob3u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b6tsb","text":"For the entirety of the region, wind slab avalanches are likely to be found adjacent to ridges due to recent strong southwest wind.
50 to 100 cm of storm snow has fallen in the last week and human triggered avalanches remain likely.  The storm snow rest on a variety of weak layers and the snowpack will need more time than usual to adjust to this new load.
urface snow will lose cohesion and become unstable with solar warming during the day.
ecent fresh snow and strong southwest winds have likely formed wind slabs in lee terrain.
Storm slabs will likely be reactive and require patience and time to settle and stabilize. These may be extra touchy on lee slopes where wind loading has built deeper slabs. Simple, low angle terrain away from overhead hazard is a good choice right now.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":120,"length":10,"key":0}],"data":{}},{"key":"6buel","text":"Loose-dry sluffing from steep terrain is likely, especilly when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LI
50 to 100 cm of storm snow has fallen in the last week and human triggered avalanches remain likely.  The storm snow rest on a variety of weak layers and the snowpack will need more time than usual to adjust to this new load.
New storm snow has likely formed reactive slabs. Strong southwest wind will create deeper slabs on leeward slopes that could produce larger avalanches. Avalanches may entrain moist snow if the runouts extend into below treeline elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":98,"length":15,"key":0},{"offset":193,"length":7,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"typ
These storm slabs will likely become less sensitive to human triggering as we move into clear weather this week, but they remain a player, especially in wind loaded terrain features.
20 or more cm of new snow, strong westerly wind and rising temperatures are setting the scene for Sunday. Use caution near steep slopes and avoid leeward slopes, particularly where you find stiff wind affected snow.
We're expecting 15 to 40 cm of new snow Monday night into Tuesday with strong north wind. Watch for the formation of fresh sensitive slabs in the new snow that will likely be sensitive to human triggering all day Tuesday.
Around 20 cm of snow overlies a hard crust. Unseasonably warm air may rapidly create slab properties within this snow and make it easy to trigger. If triggered, it should slide easily on the crust. Thicker wind slabs may also be found at the mountain tops on all aspects due to variable wind directions.
A mix of weak layers may be found 30-80 cm below the surface. Depending on your location in the region, elevation, and aspect, these layers may present as either surface hoar (especially reactive) or a mix of facets and crust (not much better). Avalanches on these layers are becoming less likely to trigger over time, however there have been signs that they are still reactive in certain locations. The variability and uncertainty about this problem warrants conservative terrain selection.
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 50 to 100 cm deep. Monday's storm snow is loading these layers. The likelihood of triggering these layers will remain likely as it stabilizes with the load that was added to it.
Fresh storm slabs on Thursday will be very reactive and a widespread avalanche cycle is likely. Below treeline hazard is rated HIGH due to the potential of large avalanches from above running to that elevation.
0 to 35 cm of new snow fell Monday night combined with moderate north and east wind. Watch for the formation of fresh sensitive slabs in the new snow that will likely continue to be sensitive to human triggering.
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 50 to 100 cm deep. The likelihood of triggering these layers will remain likely as it stabilizes from the load that was recently added on it.
Storm slabs will likely be reactive and require patience and time to settle and stabilize. These may be extra touchy on lee slopes where wind loading has built deeper slabs. Loose-dry sluffing from steep terrain is likely, especilly when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":120,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LI
Storm slabs will likely continue to be reactive on Tuesday, especially in wind loaded areas.
Around 20 cm of snow overlies a hard crust. A warming trend may add slab properties to this snow and make it easy to trigger. If triggered, it should slide easily on the crust.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"14lao","text":"At the mountain tops, thicker wind slabs may be found on all aspects due to variable wind directions.
Over 60 cm of snow accumulated in the south of the region and over 15 cm in the north on Monday. A warming trend on Wednesday may promote cohesion of this storm snow and for it to remain reactive to human traffic. Up high, wind slabs are likely to be found adjacent to ridges. The wind direction has varied, so slabs may be found on all aspects.
20 to 40 cm of new snow fell Monday night with moderate north wind. Watch for the formation of fresh sensitive slabs in the new snow that will likely continue to be sensitive to human triggering.
Over 50 cm of snow accumulated in the south of the region and over 15 cm in the north. This snow will take a few days to bond to the snowpack and may be reactive to riders on Tuesday, particularly in the south. Up high, wind slabs are likely to be found adjacent to ridges. The wind direction has switched, so slabs may be found on all aspects.
30-50 cm of recent snow still needs time to settle and to form strong bonds between storm layers and the old snow surface below it.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a6fd6","text":"Avalanches on 30 degree or steeper slopes (moderate angle) remain likely, especially if there's surface hoar below. Wind loaded slopes are suspect as well.
Up to 20 cm of new snow may fall by the end of the day Saturday ontop of extensively wind affected surfaces, crusts and wind slabs. These older wind slabs have been reactive to riders and may continue to be reactive particularly in steep convex alpine terrain where new snow has been wind loaded overtop.
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 50 to 100 cm deep. The layers likely went through a natural avalanche cycle during Monday's storm. The likelihood of triggering these layers will remain very likely on Tuesday as it stabilizes with the load that was added to it.
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 50 to 100 cm deep. Loading from recent storms have pushed the persistent slab problem over the tipping point resulting in large avalanches in the past week. We're being patient and sticking to conservative terrain for the next while until we have clear evidence that buried weak layers have stabilized.
ith warming temperatures and sun exposure, we can expect to see loose wet avalanches in the new snow, especially on steep south to southwest facing slopes and at elevations where temperatures rise above freezing.
A weak layer of surface hoar down 40-90 cm. has been reactive to human triggers, resulting in large avalanches.
Avalanches on weak layers found 30-60 cm below the surface are becoming less likely to trigger, but there has been evidence they are still possible in certain locations. This spatial distribution of this problem is highly variable across the region and across terrain features. The variability and uncertainty about this problem warrants conservative terrain selection. An in-depth understanding of local snowpack conditions is recommended before venturing into challenging or complex avalanche terrain.
30-50 cm of recent snow has been redistributed at upper elevations by overnight wind from the southwest. Storm slabs will likely be most reactive in wind loaded lees such as below ridge crests and roll overs. New snow may become increasingly sensitive to triggering when touched by the sun for the first time.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bhd81","text":"15-30 cm. of new snow since Christmas day has buried yet another weak layer of surface hoar that was widespread at treeline and below. Expect this new snow to become increasingly reactive to human triggers as it settles into a cohesive slab.
35-50 cm of recent snow is most likely to be reactive in wind affected areas where the snow has been redistributed and stiffened into a slab. Keep your guard up in sheltered openings at treeline and below, where this snow is gradually settling into a slab above pockets of surface hoar.
Wind slabs remain reactive to human triggering on most aspects due to strong, changing winds and recent new snow being available for transport. Predominately west / southwest winds have loaded northerly and easterly aspects.  However, assess each slope carefully for wind loading. Observe wind effect like scouring, sastrugi, cross-loading and lee deposition fro clues to how recent winds have reworked the terrain.   Natural avalanches, whumphing, and shooting cracks in the snow are all indicators of a instability. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":288,"length":12,"key":0}],"data":{}},{"key":"cdgc5","text":"Be on the look-out for cornice formation: these are a hazard underfoot as well as being an overhead hazard that is capable of triggering large avalanches should they fail.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":23,"length":7,"key":1}],"data":{}},{"key":"5s657","text":"Loose-dry sluffing from sheltered steep terrain is likely, especially if the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=wind+#wind-effect"}},"1":{"type":
Natural avalanche activity continues to taper with the end of the snowfall and easing of winds.  However, recent moderate to strong west/southwest winds have created fresh windslabs on lee north and east slopes and cross-loaded features making the snowpack primed for human triggering.   Be on the look-out for cornice formation: these are a hazard underfoot as well as being an overhead hazard that is capable of triggering large avalanches should they fail.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":185,"length":4,"key":0},{"offset":215,"length":12,"key":1},{"offset":311,"length":7,"key":2}],"data":{}},{"key":"ev1hh","text":"Loose-dry sluffing from sheltered steep terrain is likely, especially when the sun comes out or when transitioning into steeper terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=cross#cross-loading"}},"2":{"type":
Fresh wind slabs will likely remain reactive, especially where they have been stiffened by the wind or where they sit atop a surface hoar layer that was reported from just before the recent storm.  Recent winds have been highly variable.  Initially winds were from the southwest but then shifted strong to extreme from the east before returning to a more typical west flow.  Thus all aspects near ridgecrest or wind affected terrain should be assessed for potential windslabs or buried windslabs.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1d4v6","text":"Natural avalanche activity may begin to taper but human triggering remains likely. A conservative plan and terrain selection is key while avoiding overhead hazards like fresh cornices and large avalanche paths.
Weak layers of surface hoar and/or faceted grains overlie a hard melt-freeze crust 30 to 80 cm deep. The new snow load before Christmas pushed this problem over the tipping point and resulted in large avalanches. Although the likelihood of triggering persistent slab avalanches is decreasing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
35-50 cm of recent snow is most likely to be reactive in wind affected areas where the snow has been redistributed and stiffened into a slab. Keep your guard up in sheltered openings at treeline and below, where this snow is gradually settling into a slab above pockets of surface hoar.
A couple of problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
Heavy snowfall will create widespread and reactive wind slabs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e9sih","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5dac2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr018","text":"
Storm slabs will be widespread and very reactive due to significant snow amounts and strong winds.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
Recent large human triggered avalanches failed on a very weak layer of surface hoar down 30-40 cm. and the sensitivity of this layer was described as \"electric\"! This layer has been found to be most prevalent in the areas surrounding Valemount.
Recent large human triggered avalanches failed on a very weak layer of surface hoar down 30-40 cm. and the sensitivity of this layer was described as \"electric\"! This layer has been found to be most prevalent in the areas surrounding Valemount.
\nNew snow, strong winds and rising freezing levels have created widespread storm slabs ripe for human triggers.\n
Weak layers of surface hoar and/or faceted grains may be found above a melt-freeze crust. Recent reports suggest this weak layer may be less prevalent in the south of the region, but still exists in localized pockets.
Upwards of 40 cm of snow may accumulate in the region by Friday afternoon, with the most snow expected in the west of the region. Storm and wind slabs will build rapidly and they will load buried weak layers. An avalanche cycle may occur at some point during the next few days.
Be on the lookout for fresh wind slabs forming on lee east/southeast slopes in areas with moderate to strong winds.  Winds have been variable, so assess leeward slopes carefully for wind loading. Observe wind effect like scouring, sastrugi, cross-loading and lee deposition for clues to how recent winds have reworked the terrain.  Large cornices  have formed: these are a hazard underfoot as well as being an overhead hazard that is capable of triggering large avalanches should they fail","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":153,"length":7,"key":0},{"offset":203,"length":12,"key":1},{"offset":338,"length":8,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=wind+#wind-effect"}},"2":{"type":
Be on the lookout for fresh wind slabs forming on lee east/southeast slopes in areas with moderate to strong winds.  Winds have been variable, so assess leeward slopes carefully for wind loading. Observe wind effect like scouring, sastrugi, cross-loading and lee deposition for clues to how recent winds have reworked the terrain.  Large cornices  have formed: these are a hazard underfoot as well as being an overhead hazard that is capable of triggering large avalanches should they fail","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":153,"length":7,"key":0},{"offset":203,"length":12,"key":1},{"offset":338,"length":8,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=wind+#wind-effect"}},"2":{"type":
Up to 60 cm of snow fell in the region between Tuesday night and Thursday morning. Strong winds from a variety of directions will mean that storm slabs are likely to be encountered on all aspects and may remain reactive to human triggering on Thursday. The new snow may sit on a weak layer of either surface hoar or a crust, which may mean that it remains reactive for longer than usual.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e9sih","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5dac2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr018","text":"
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bhd81","text":"15-25 cm. of new snow since Christmas day has buried yet another weak layer of surface hoar that was widespread at treeline and below. Expect this new snow to become increasingly reactive to human triggers as it settles into a cohesive slab.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"989vs","text":"15-25 cm. of new snow since Christmas day has buried yet another weak layer of surface hoar that was widespread at treeline and below. Expect this new snow to become increasingly reactive to human triggers as it settles into a cohesive slab.
Weak layers of surface hoar and/or faceted grains overlie a hard melt-freeze crust 30 to 80 cm deep. The new snow load before Christmas pushed this problem over the tipping point and resulted in large avalanches. Although the likelihood of triggering persistent slab avalanches is decreasing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"989vs","text":"25-40 cm. of new snow since Christmas day has buried yet another weak layer of surface hoar that was widespread at treeline and below. Expect this new snow to become increasingly reactive to human triggers as it settles into a cohesive slab.
Avalanches on weak layers found 30-60 cm below the surface are becoming less likely to trigger, but there has been evidence they are still possible in certain locations. This spatial distribution of this problem is highly variable across the region and across terrain features. The variability and uncertainty about this problem warrants conservative terrain selection. An in-depth understanding of local snowpack conditions is recommended before venturing into challenging or complex avalanche terrain.
A couple problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
Recent large human triggered avalanches failed on a very weak layer of surface hoar down 30-40 cm. and the sensitivity of this layer was described as \"electric\"! This layer has been found to be most prevalent in the areas surrounding Valemount.
Another intense storm pulse will cause widespread storm slab avalanche activity, especially in exposed terrain where there will be significant wind loading. At lower elevations raising freezing levels could produce wet loose avalanches.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"989vs","text":"The 35-50 cm. of recent snow is most likely to be reactive in wind affected areas where the snow has been stiffened into a slab.
Be on the lookout for wind-loading in  lee north and east slopes from southwest winds.   Older buried windslabs and cross-loaded features on all aspects are also suspect.    ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":39,"length":3,"key":0},{"offset":116,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":"LINK",
The 35-50 cm. of recent snow is most likely to be reactive in wind affected areas where the snow has been stiffened into a slab.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 50 to 100 cm deep. The likelihood of triggering these layers will remain likely as it stabilizes from the recently added snow load.
With 10-15 cm falling over the day Friday, around 30 cm of snow now overlies a hard crust. If triggered, storm slabs will slide easily on the crust. Thicker wind slabs may also be found at the mountain tops on all aspects due to variable wind directions.
Storm slabs will likely be reactive and require patience and time to settle and stabilize. These may be extra touchy on lee slopes where wind loading has built deeper slabs. Loose-dry sluffing from steep terrain is likely, especilly when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":120,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LI
Fresh storm slabs on Friday will likely remain reactive, especially where they have been stiffened by the wind. Natural avalanche activity may begin to taper but human triggering is likely. A very conservative plan and terrain selection is key while avoiding overhead hazards like fresh cornices and large avalanche paths.
torm slabs in motion may step down to deeper weak layers, resulting in large avalanches.
A a variable but often reactive pair of weak layers exist below our recent storm snow (30-50 cm) and a bit deeper (40-80cm).  Depending on your elevation, aspect, and location in the region, these layers may present as either surface hoar (especially reactive) or a mix of facets and crust (not much better!) Wind slab releases may step down to one of these layers to create even larger avalanches. Keep your guard all the way up in the upper BTL.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":443,"length":3,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mu
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bhd81","text":"25-40 cm. of new snow since Christmas day has buried yet another weak layer of surface hoar that was widespread at treeline and below. Expect this new snow to become increasingly reactive to human triggers as it settles into a cohesive slab.
Natural avalanche activity may taper off a bit with the end of the snowfall, but moderate to strong west/southwest winds are creating fresh windslabs on lee slopes making the snowpack primed for human triggering.  These may be touchy during periods of active wind transport. Be on the look-out for cornice formation: these are a hazard underfoot as well as being an overhead hazard that is capable of triggering large avalanches should they fail.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":153,"length":10,"key":0},{"offset":298,"length":7,"key":1}],"data":{}},{"key":"ev1hh","text":"Loose-dry sluffing from sheltered steep terrain is likely, especilly when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":
A mix of weak layers may be found 30-80 cm below the surface. Depending on your location in the region, elevation, and aspect, these layers may present as either surface hoar (especially reactive) or a mix of facets and crust (not much better).","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6h248","text":"Avalanches on these layers are becoming less likely to trigger over time, however there have been signs that they are still reactive in certain locations. The variability and uncertainty about this problem warrants conservative terrain selection.
Be on the lookout for wind-loading in  lee slopes from a variety of westerly wind directions.   Older buried windslabs and cross-loaded features should also be suspect.     Large cornice have formed: these are a hazard underfoot as well as being an overhead hazard that is capable of triggering large avalanches should they fail.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":39,"length":3,"key":0},{"offset":123,"length":12,"key":1},{"offset":179,"length":7,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=cross#cross-loading"}},"2":{"type":
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"989vs","text":"30-50 cm. of new snow since Christmas day has buried yet another weak layer of surface hoar that was widespread at treeline and below. Expect this new snow to become increasingly reactive to human triggers as it settles into a cohesive slab; especially in wind affected terrain.
Storm totals may reach 60 cm by Saturday afternoon, with the most snow expected in the west of the region. Storm and wind slabs are likely building rapidly and they are loading buried weak layers. An avalanche cycle is expected to occur at some point during the next few days, producing very dangerous avalanche conditions.
As of Saturday afternoon the storm has produced 10 to 55 cm of snow and more is expected to fall Saturday night into Sunday. Storm slabs will likely be susceptible to human triggering and there is real concern that storm slabs in motion will step down and trigger very large persistent slab avalanches.
Fresh wind slabs will likely remain reactive, especially where they have been stiffened by the wind or where they sit atop a surface hoar layer that was reported from just before the recent storm.  Initially with the recent storm, winds were from the southwest but then shifted to the east as the storm left the region.  Thus all aspects near ridgecrest or wind affected terrain should be assessed for potential windslabs or buried windslabs.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1d4v6","text":"Natural avalanche activity may begin to taper but human triggering remains likely. A conservative plan and terrain selection is key while avoiding overhead hazards like fresh cornices and large avalanche paths.
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 60 to 80 cm deep. New snow loads before Christmas pushed the persistent slab problem over the tipping point resulting in large avalanches. Although the likelihood of triggering a persistent slab avalanche is decreasing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Snow will accumulate over the day, producing storm slabs in sheltered terrain and wind slabs in exposed terrain. Use particular caution if you find more than 20 cm of snow accumulate and step out of avalanche terrain during periods of rapid snow accumulation (i.e., 2+ cm of snow an hour).
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 50 to 100 cm deep. Loading from recent storms have pushed the persistent slab problem over the tipping point resulting in large avalanches in the past week. We're being patient and sticking to conservative terrain for the next while until we have clear evidence that buried weak layers have stabilized.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
30-40 cm of new snow is forecast to fall by the end of the day Saturday. This snow came in warm and is expected to adhere well to older snow. Thicker wind loaded pockets may be found in lee terrain features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b4620","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b41je","text":"Around 50-60 cm of snow now overlies a thick crust. If triggered, storm slabs can slide easily on the crust.
Recent large human triggered avalanches failed on a very weak layer of surface hoar down 30-40 cm. and the sensitivity of this layer was described as \"electric\"! This layer has been found to be most prevalent in the areas surrounding Valemount.
We are in the midst of a stormy period that will build slabs at all elevations. The snow may be reactive in sheltered terrain where it could overly a weak layer of surface hoar. Strong wind from the southwest wind will create thick and touchy deposits in lee terrain features at higher elevations.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"989vs","text":"30-50 cm. of new snow since Christmas day has buried yet another weak layer of surface hoar that was widespread at treeline and below. Expect this new snow to become increasingly reactive to human triggers as it settles into a cohesive slab; especially in wind affected terrain.
Weak layers of surface hoar and/or faceted grains overlie a hard melt-freeze crust 30 to 80 cm deep. The new snow load before Christmas pushed this problem over the tipping point and resulted in large avalanches. With new snow on Friday and over the weekend, the potential for triggering a high consequence avalanche may increase and should still be top of mind in your decision-making process.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bhd81","text":"25-40 cm. of new snow since Christmas day has buried yet another weak layer of surface hoar that was widespread at treeline and below. Expect this new snow to become increasingly reactive to human triggers as it settles into a cohesive slab.
As west/northwest winds pick up Monday be on the lookout for wind-loading in  lee east/southeast slopes.   Recent moderate to strong west/southwest winds have created old windslabs on north and east slopes and cross-loaded features.     Large cornice have formed: these are a hazard underfoot as well as being an overhead hazard that is capable of triggering large avalanches should they fail.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":78,"length":3,"key":0},{"offset":183,"length":1,"key":1},{"offset":210,"length":12,"key":2},{"offset":243,"length":7,"key":3}],"data":{}},{"key":"ev1hh","text":"Loose-dry sluffing from sheltered steep terrain is likely, especially if the sun comes out or when transitioning into steeper terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=leeward#leeward"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=cross#cross-loading"}},"3":{"type":
Fresh storm slabs reactive to human triggers will form throughout the day on Saturday.
Fresh storm slabs are likely to be especially reactive in wind loaded terrain features. Recent wind has varied in direction so these may be found on a variety of aspects. The fresh snow will also be sensitive to seeing the sun for the first time and rapid settlement may trigger natural releases.
The incoming storm is expected to form new slabs over the day, with the most snowfall expected in the west of the region.  The thickest deposits are expected to be in exposed terrain up high, as the snow will fall with strong southwest wind. The snow may overly a weak layer of surface hoar so the snow could slide easily.
Fresh storm slabs reactive to human triggers will form throughout the day on Saturday.
Significant amounts of new snow with strong winds will form widespread storm slabs that will most likely be very reactive.
torm slabs in motion may step down to deeper weak layers, resulting in large avalanches.
Fresh and buried wind slabs will likely remain reactive to human triggering, especially where they sit atop a surface hoar layer that was reported from just before the recent storm.  Recent winds have been highly variable.  Reverse loading from east winds producing windslabs on leeward west and southwest slopes.  As winds shift to northwest then southwest be on the lookout for reactive windslabs on all aspects in exposed ridgtops, alpine and open below treeline features.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":17,"length":10,"key":0},{"offset":224,"length":15,"key":1},{"offset":278,"length":8,"key":2}],"data":{}},{"key":"dj8gk","text":"Watch out for cornice formation along ridgecrests: these are a hazard underfoot as well as being an overhead hazard that is capable of triggering large avalanches should they fail.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":14,"length":7,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=wind+slab#wind-slab"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=wind+slab#reverse-loading"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=lee#leeward"}},"3":{"type":
Storm totals may reach 100 cm by Sunday afternoon, with the most snow expected in the west of the region. Storm and wind slabs are building rapidly and they are loading buried weak layers. If it isn't already underway, a natural avalanche cycle is expected to begin Saturday night, meaning very dangerous conditions will persist through Sunday.
Fresh storm slabs reactive to human triggers will form throughout the day on Saturday.
10 to 15 cm of snow is expected Saturday. Storm slabs will likely be susceptible to human triggering and there is real concern that storm slabs in motion will step down and trigger very large persistent slab avalanches.
We are in the midst of a stormy period with new slabs building at all elevations. The snow may be reactive in sheltered terrain where it could overlie a weak layer of surface hoar. Strong wind from the southwest will create thicker and touchier deposits in lee terrain features at higher elevations.
Snow will accumulate over Saturday night and over the day on Sunday, building fresh storm slabs in avalanche terrain throughout the region. Expect natural avalanche activity to ramp up as 30 or more cm of new snow accumulates.
10-30 cm of new snow, strong southwest wind, and an increasing freezing level are in the forecast for Sunday. Expect to find touchy new wind slabs adjacent to ridges, particularly in alpine terrain. Where new snow totals exceed 20 cm, expect a more widespread storm slab problem affecting avalanche terrain on all aspects and elevations.
Strong winds and fresh snow will mean that new, reactive storm slabs are likely to form and they may become increasingly reactive throughout the day.
Fresh storm slabs reactive to human triggers will form throughout the night on Saturday.
Storm slabs may become increasingly reactive throughout the day.
New snow, strong winds and rising freezing levels have created widespread storm slabs ripe for human triggers.
Significant amounts of new snow with strong winds will form widespread storm slabs that will most likely be very reactive.
Storm slabs will likely become increasingly reactive in the afternoon as snowfall resumes.
Storm slabs will likely remain sensitive to human triggering Tuesday. Freshly wind loaded features will be most reactive.
Storm slabs will be widespread and very reactive due to significant snow amounts and strong winds.
As of Saturday afternoon the storm has produced 10 to 55 cm of snow and more is expected to fall Saturday night into Sunday. Storm slabs will likely be susceptible to human triggering and there is real concern that storm slabs in motion will step down and trigger very large persistent slab avalanches.
\nNew snow, strong winds and rising freezing levels have created widespread storm slabs ripe for human triggers.\n
New snow, strong winds and rising freezing levels have created widespread storm slabs ripe for human triggers.
Recent wind has varied in direction so wind loaded pockets of storm slab may be found on a variety of aspects. At lower elevations, storm slabs will remain reactive where they sit over surface hoar.
Significant amounts of recent snow with ongoing strong winds are forming widespread storm slabs that will most likely remain reactive.
Storm slabs may remain sensitive to human triggers, especially in freshly wind loaded features at upper elevations and where recent snow sits over surface hoar in wind sheltered areas.
Recent deposits of snow are still a concern for human triggering, especially at upper elevations and on freshly wind loaded slopes.
Storm slabs will be widespread and reactive due to continuous snowfall and strong winds.
Recent fresh snow and wind has formed storm slabs in many areas that will likely still be easy to trigger.
50-100 cm of recent snow and strong wind has left widespread storm slabs that can easily be triggered by skiers and sledders. These slabs sit above several concerning weak layers (surface hoar and crusts). Strong wind on Monday creates the additional danger of natural avalanches in the alpine.
10-30 cm of recent snow and strong southwest has formed storm slabs that may remain reactive to human triggering, especially at upper elevations and on freshly wind loaded slopes.
New snow and recent strong winds have created widespread storm slabs that are still likely to be triggered by humans in many areas.
New snow and wind will likely create widespread and reactive storm slabs at upper elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e9sih","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5dac2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr018","text":"
Recent fresh snow and wind has formed storm slabs in many areas that will likely still be easy to trigger, including at lower elevations where it may sit on a buried weak layer.
New snow and recent strong winds have created widespread storm slabs that are still likely to be triggered by humans in many areas.
New snow and recent strong winds have created storm slabs that will likely still be easy to trigger, especially in wind loaded areas and at lower elevations where they may sit on a buried weak layer.\n
Recent snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar (think shaded slopes).
Storm slabs may remain sensitive to human triggers, especially in freshly wind loaded features at upper elevations and where recent snow sits over surface hoar in wind sheltered areas.
Overnight snowfall combined with wind has possibly created reactive storm slabs in the south of the region. Deepest deposits can be found in lee terrain with forecast strong to extreme southwest wind.
Overnight snowfall combined with wind has likely created widespread and reactive storm slabs. Forecast strong to extreme southwest wind has likely created deep deposits in exposed lee terrain.
As the 20-60 cm we received from the weekend storm gradually settles and bonds to the old surface, wind loaded areas remain suspect. Recent reports suggest wind has been redistributing snow even in lower elevation openings in forested areas and more strong to extreme winds are in the forecast. Wind slab avalanches may have potential to step down to deeply buried weak layers in areas where these are well preserved.
The final storm pulse on Wednesday will bring 20-40 cm of snow, resulting in another round of storm slab avalanche activity. Natural activity will be especially likely in higher open terrain where there will be significant drifting, while human triggering remains likely on all steep slopes. Storm slabs have been very reactive in the Shames area, as they seem to be sitting above touchy surface hoar and crust layers.
Snowfall combined with wind Tuesday night has created reactive storm slabs. Strong to extreme wind from a variety of directions has likely created deep deposits in exposed lee terrain.
Storm slabs may remain sensitive to human triggers, especially in freshly wind loaded features at upper elevations and where recent snow sits over surface hoar in wind sheltered areas.
Recent fresh snow and wind has formed storm slabs in many areas that may still be easy to trigger, especially at lower elevations where they may sit on a buried weak layer.
Recent new snow with some moderate wind has created widespread storm slabs that are still likely to be triggered by humans in many areas.
Recent new snow with some moderate wind has created widespread storm slabs that are still likely to be triggered by humans in many areas.
A week of stormy weather has left widespread storm and wind slabs. On Thursday, isolated flurries and strong wind could still cause natural avalanches at higher elevations, while human triggered slabs are a likely at all elevations. Minimizing exposure to overhead avalanche terrain remains important because storm slab avalanches could run long distances right now.
Storm slabs may remain sensitive to human triggers, especially in freshly wind loaded features at upper elevations and where recent snow sits over surface hoar in wind sheltered areas.
A week of stormy weather has left widespread storm slabs ripe for human triggers. Slabs will be most reactive in wind affected terrain.
Wind slabs may remain sensitive to human triggers, especially in freshly wind loaded features at upper elevations.
Recent new snow with some moderate wind has created widespread storm slabs that may still be easy to trigger in some areas.
Recent fresh snow with some moderate wind has created storm slabs that may still be easy to trigger in some areas.
ecent new snow and strong southwest winds have likely formed wind slabs in lee terrain.
Wind slabs may remain sensitive to human triggers, especially in freshly wind loaded features at upper elevations.
New snow and extreme winds will form widespread storm slabs reactive to human triggers.
15 to 25 cm of new snow has fallen in the last week. At lower elevations this snow is resting on surface hoar. We haven't heard much about reactivity with this surface hoar yet, but it could reach the tipping point anytime. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8d846","text":"In wind exposed terrain at and above treeline the new snow has been shifted into wind slabs in exposed terrain by ongoing west & southwest wind.
New storm and wind slabs are expected to build during Sunday night's storm, which are expected to e touchy on Monday. Extreme (up to 120 km/h) wind from the northeast to southeast has occurred at the mountain tops, so wind slabs are expected to be rapidly forming. Avoid being lured into committing avalanche terrain during clear periods on Monday.
New storm slabs will form on Monday as snow accumulates. The new snow may be touchy to riders on Monday. New wind slabs are expected to form at higher elevations due to strong southerly wind.
Heavy snowfall will rapidly load the snowpack. Expect slabs to be widespread and reactive.
New snow and extreme winds will form widespread storm slabs reactive to human triggers at all elevations.
Fresh snow and moderate southwest winds are expected to form storm slabs throughout the day. These may become more reactive as the day goes on and the new snow piles up.
Recent snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar. Both problems will be greatest in the southern half of the region.
New snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar or crust.
Storm slabs are expected to be widespread and reactive.
New storm slabs will continue to build Monday night and Tuesday. The new snow/ rain load will destabilize the snowpack and natural avalanches are likely. New wind slabs are expected to form at higher elevations due to strong southerly wind.
New and reactive storm and wind slabs are expected to build during Tuesday's storm. Extreme (up to 120 km/h) wind from the northeast to southeast has occurred at the mountain tops, so wind slabs are expected to be rapidly forming.
New snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar or crust.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c1sk7","text":"
p to 40 cm of new snow, coupled with strong winds have loaded the avalanche terrain in the region with new slab problems. In exposed areas, thick and reactive wind slabs should be expected in leeward features. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar or crust.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e8ci0","text":"Cornices have also been growing. A cornice fall is a large load that can trigger avalanches on the slope below.
Incremental loading along with strong winds continues to develop storm slabs, expect slabs to be widespread and reactive.
New snow is not expected to adhere well to the crust.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr018","text":"
Up to 30 cm of snow fell recently in the region. With ongoing strong winds, fresh slab formation is likely still occurring. These slabs will be easiest to trigger in wind loaded areas.
New and reactive storm and wind slabs are expected to linger after the storm. Strong to extreme southwest wind will persist depositing recent snow into deeper slabs on leeward slopes in the alpine. Cornices have grown large and may be fragile. They deserve respect and a wide berth from below and above. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8i9kq","text":"
Fresh wind slabs are likely forming with some new snow and strong to extreme winds.
Ongoing snowfall and flurries continue to drive the ongoing storm slab hazard. Increasing wind and rising freezing levels through Monday will further shake the snowpack and elevate hazard. Expect slabs to be widespread and reactive.
20-40 cm of new snow is expected between Thursday night and Friday afternoon. Storm slabs are expected to be widespread.
Over 50 cm of recent snow with ongoing strong wind continues to form fresh storm and wind slabs in the region. These will likely be the most reactive in leeward terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":153,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{
New snow and extreme southwest winds on Monday night will form widespread storm slabs that will likely remain reactive on Tuesday.
New and reactive storm and wind slabs are expected to linger after the storm. Strong southwest wind will persist depositing recent snow into deeper slabs on leeward slopes in the alpine. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8i9kq","text":"
The new snow/ rain load will destabilize the snowpack and natural avalanches are likely on Wednesday. New wind slabs are expected to form at higher elevations due to strong southerly wind.
New snow and strong wind are forecast for Tuesday and Wednesday. Storm slabs may form rapidly with relatively mild air temperature. In sheltered areas, the snow may overly weak surface hoar, meaning the snow could slide easily. Strong wind is also forecast, likely forming wind slabs in exposed terrain at higher elevations.
New snow and strong winds are likely forming fresh storm and wind slabs at upper elevations. Expect to find deepest deposits in lee terrain.
bit of new snow and wind are likely forming fresh wind slabs in leeward terrain features at upper elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3boh2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e8ci0","text":"Cornices have also been growing. A cornice fall is a large load that can trigger avalanches on the slope below.
Storm slabs are expected to be widespread and are likely still easy to trigger, especially in wind loaded areas.
Lots of new snow has fallen in the region with strong to extreme winds. Natural avalanches are expected.
New and reactive storm and wind slabs are expected to linger after the storm. Strong to extreme southwest wind will persist depositing recent snow into deeper slabs on leeward slopes in the alpine. Cornices have grown large and may be fragile. They deserve respect and a wide berth from below and above. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8i9kq","text":"
New and reactive storm and wind slabs are expected to linger after the storm. Strong southwest wind will persist depositing recent snow into deeper slabs on leeward slopes in the alpine. Cornices may have grown large and fragile. They deserve respect and a wide berth from below and above. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bu7dd","text":"
New and reactive storm slabs will continue to build by Wednesday. The new snow/ rain load will destabilize the snowpack and natural avalanches are likely. New wind slabs are expected to form at higher elevations due to strong southerly wind.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bu7dd","text":"This problem may not be prevalent at lower elevations where the precipitation fell as rain in the South. Lower elevations may develop a crust as freezing levels drop.
reezing levels are expected to rise to 2500 m by the afternoon. If the warm temperatures break down the crust expect loose wet avalanches to occur, especially from steeper terrain features.
Watch for freshly wind loaded pockets of storm slab on leeward slopes in the alpine. Cornices have grown large and fragile. They deserve respect and a wide berth from below and above. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bu7dd","text":"
New snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar. Both problems will be greatest in the southern half of the region.
New snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar or crust.
New snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar or crust.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c1sk7","text":"
p to 40 cm of new snow, coupled with strong winds have loaded the avalanche terrain in the region with new slab problems. In exposed areas, thick and reactive wind slabs should be expected in leeward features. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar or crust.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3boh2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e8ci0","text":"Cornices have also been growing. A cornice fall is a large load that can trigger avalanches on the slope below.
Recent snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar (think shaded slopes). Both problems will be greatest in the southern half of the region.
Storm slabs are expected to be widespread and are likely still easy to trigger, especially in wind loaded areas.
Over 50 cm of new snow with strong to extreme winds have formed widespread storm slabs in the region.
Up to 30 cm of recent fresh snow fell in the region with significant winds. Triggering storm slabs will be most likely in wind loaded areas.
Recent snow and strong winds have created new slab problems that are likely to vary with elevation and wind exposure. In exposed areas, thick and reactive wind slabs should be expected in leeward features loaded by the wind. In sheltered areas, storm slabs are more likely to exist uniformly across all aspects and be particularly touchy where they overlie surface hoar (think shaded slopes).","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c1sk7","text":"
Fresh wind slabs are likely forming with some new snow and strong winds.
A couple of problematic layers may be found around 100 to 200 cm deep, including a weak layer of faceted grains above a melt-freeze crust. A few high-consequence avalanches have been triggered naturally and by riders recently near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46h8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dpkhg","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
Fresh wind slabs are likely forming with some new snow and strong to extreme winds.
By Monday afternoon there will likely be 50-75 cm of recent fresh snow, resulting in thick and reactive storm slabs. Expect natural avalanches in steep terrain during periods of heavy loading, while human triggered avalanches will be likely throughout the day.
p to 40 cm of storm snow, coupled with strong winds have loaded avalanche terrain in the region with new slab problems. In exposed areas, thick and reactive wind slabs should be expected in leeward features. In sheltered areas, storm slabs are more likely to be reactive where they overlie a fragile layer of surface hoar. (Think shaded, wind protected slopes around treeline)","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e8ci0","text":"Cornices have also been growing. A cornice fall is a large load that can trigger avalanches on the slope below.
Another 20 cm of snow is expected on Saturday with strong winds. Storm slabs are likely widespread and reactive.
Recent snow and strong winds have created slab problems that vary with elevation and wind exposure. In exposed areas, thick wind slabs should be expected in leeward features across a wide range of aspects. In sheltered areas, storm slabs are more likely to be reactive where they have formed over a fragile layer of surface hoar (think shaded slopes).
A storm that is forecast to impact the north of the region is expected to bring a buried layer of surface hoar to a critical load in sheltered areas while forming new and reactive wind slabs at upper elevations. In the south of the region, sufficient load already exists over this buried weak layer for it to produce large avalanches on suspect slopes and the wind slab problem (likely a bit less reactive) already exists.
p to 40 cm of storm snow, coupled with strong winds have loaded avalanche terrain in the region with new slab problems. In exposed areas, stubborn wind slabs should be expected in leeward features. In sheltered areas, storm slabs are more likely to be reactive where they overlie a fragile layer of surface hoar. (Think shaded, wind protected slopes around treeline)","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ofne","text":"Cornices have also been growing. A cornice fall is a large load that can trigger avalanches on the slope below.
Recent snow and strong winds have created slab problems that vary with elevation and wind exposure. In exposed areas, thick wind slabs should be expected in leeward features on a wide range of aspects. In sheltered areas, storm slabs are more likely to be reactive where they overlie surface hoar (think shaded slopes).","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c1sk7","text":"
15 to 25 cm of new snow has fallen in the last week, and we're expecting 5 to 10 cm Saturday night with an additional 5 to 15 cm on Sunday. At lower elevations there may be surface hoar under all of the new snow. We haven't heard much about reactivity with this surface hoar yet, but it could reach the tipping point anytime.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9lqho","text":"In wind exposed terrain at and above treeline the new snow has been shifted into wind slabs by ongoing west & southwest wind. Northwest wind Saturday night into Sunday is expected to continue to form fresh slabs.
10-25 cm of recent snow and shifting winds have created storm slabs that vary with elevation and wind exposure. In exposed areas, thick wind slabs should be expected in leeward features across a wide range of aspects. Ongoing wind and snow over the past week have contributed to cornice growth. Cornice falls may trigger avalanches on the slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":56,"length":11,"key":0}],"data":{}}],"entityMap":{"0":{
15-25 cm of recent snow and shifting winds have created storm slabs that vary with elevation and wind exposure. In exposed areas, thick wind slabs should be expected in leeward features across a wide range of aspects. Ongoing wind and snow over the past week have contributed to cornice growth. Cornice falls may trigger avalanches on the slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":56,"length":11,"key":0}],"data":{}}],"entityMap":{"0":{
Winds have impacted loose snow at all elevations, including exposed terrain below treeline.
Variable winds shifting to easterly may transport the 10-20 cm of recent low density snow and build fresh wind slabs or soft slabs in immediate lee of windy ridge crests in the alpine and at treeline, cross loaded features and open areas below treeline.  These slabs will be particularly reactive anywhere snow overlies buried surface hoar or crust.  Elsewhere, loose snow avalanches (sluffs) can be expected in all steep terrain.
A weak layer of surface hoar buried Jan 11 may be found 35-60 cm deep on open, sheltered slopes near and below treeline. Although likely unreactive to skiers, there is uncertainty in the distribution and sensitivity of this persistent slab problem across the region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":224,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Assess all slopes for wind slabs as southeast wind increases moderate to strong overnight Tuesday and throughout the day Wednesday.  Wind and soft slabs will be particularly touchy anywhere they overlie surface hoar that was reported to be widespread in many sheltered areas.  Reactive wind slabs may form in the lee of windy exposed ridge crests, on cross loaded features, on steep alpine slopes and in open areas below tree line.  Cornice failures from above may trigger an otherwise stubborn deeper wind slab in addition to being a hazard outright.
A weak layer of surface hoar buried Jan 11 may be found 40-70 cm deep on open, sheltered slopes near and below treeline. Although likely unreactive to skiers, there is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":226,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Recent fresh snow combined with strong southerly winds has formed reactive storm slabs in many areas, especially wind loaded terrain features.
Variable winds shifting to easterly may have transported the 10-20 cm of recent low density snow and build fresh wind slabs or soft slabs in immediate lee of windy ridge crests in the alpine and at treeline, cross loaded features and open areas below treeline. These slabs will be particularly reactive anywhere snow overlies buried surface hoar or crust. Elsewhere, loose snow avalanches (sluffs) can be expected in all steep terrain.
30-60 cm of new snow sits on a weak layer that consists of a crust, with facets and/or surface hoar on top of it. Continued moderate southeast winds are expected to form reactive slabs. This weak layer may continue to produce avalanches for longer than what is typical after a storm on the South Coast.
Assess all slopes for wind slabs as easterly wind transported loose snow on Tuesday and Wednesday.  Wind and soft slabs will be particularly touchy anywhere they overlie surface hoar that was reported to be widespread in many sheltered areas. Reactive wind slabs may have formed in the lee of windy exposed ridge crests, on cross loaded features, on steep alpine slopes and in open areas below tree line. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a24pn","text":"Cornice failures from above may trigger an otherwise stubborn deeper wind slab in addition to being a hazard outright.
By Monday afternoon there will likely be 30-70 cm of recent new snow, resulting in thick and reactive storm slabs. Human triggered avalanches will be likely throughout the day. Storm slabs may propagate widely as they sit atop a recently buried weak layer.
30-40 cm of new snow sits on a weak layer that consists of a crust, with facets and/or surface hoar on top of it. Strong winds are expected to form reactive slabs. This weak layer will likely continue to produce avalanches for longer than what is typical after a storm on the South Coast.
A weak layer of surface hoar buried Jan 11 may be found 40-70 cm deep on open, sheltered slopes near and below treeline. Although likely unreactive to skiers, there is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":226,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Fresh and reactive storm slabs are expected to be widespread and easy to trigger, especially in wind loaded areas.
Touchy storm slab conditions exist in all steep terrain and at all elevations.  A couple of buried surface hoar layers in the top 50 cm will be very reactive anywhere slab properties develop due to wind or warm temperatures.
Up to 40 cm of new snow is expected to accumulate before the end of the day on Monday and form touchy storm slabs over fragile surface hoar and slippery crust. This is a recipe for dangerous avalanche conditions at all elevations and on all aspects.
The region has picked up 25 to 50 cm of recent warm wet storm snow with another 5 to 10 cm expected Tuesday.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3kmm1","text":"In wind exposed terrain at and above treeline the new snow has been shifted into wind slabs by ongoing west & southwest wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bl6cm","text":"At lower elevations there may be surface hoar under all of the new snow. We haven't heard much about reactivity with this surface hoar yet, but it needs to be on your radar.
Fresh snow continues to gradually accumulate and could be forming reactive slabs, especially on steep and wind loaded slopes.
New snow is not expected to bond well to the old crusty surface. Expect loose dry sluffing over the crust.
Fresh storm slabs are expected to be easy to trigger, especially in wind loaded areas.
Recent snow and extreme southwesterly winds have created wind slabs in many locations, even open areas below treeline. These may still be reactive to the weight of a person or machine.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"20j1b","text":"The same conditions formed fragile new cornice growth.
Up to 35 cm of storm snow has accumulated over the past few days. Storm slabs will likely be reactive on Saturday with increased snowfall amounts adding stress to the slab. A buried weak interface may exist in some locations approximately 60 cm down and could reach its threshold, initiating a deeper slab. At this point, this interface seems spotty through the region and hasn't been as reactive as in the Lizard-Flathead region. However, something to keep this on your radar. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4ivv0","text":"Loose-dry avalanches may occur from steep terrain features.
Recent snow and extreme southwesterly winds have created touchy wind slabs in many locations, even open areas below treeline.
30-60 cm of recent fresh snow sits on a weak layer that consists of a crust, with facets and/or surface hoar on top of it. Continued moderate southeast winds are expected to form reactive slabs. This weak layer may continue to produce avalanches for longer than what is typical after a storm on the South Coast.
Up to 25 cm of new snow on Saturday will add to 30-60 cm of recent snow already sitting on a widespread weak layer that consists of a crust, with facets and/or surface hoar on top of it. Along with storm slabs formed of new snow, this deeper layer is expected to produce avalanches for longer than what is typical after a storm on the South Coast.
25 cm of fresh snow has formed storm slabs that will likely be reactive on steep slopes.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5u2sb","text":"
5-35 cm of recent snow has formed reactive storm slabs sitting on a weak layer of surface hoar. These slabs may be especially reactive in wind affected terrain.
Recent snow and extreme southwesterly winds have created wind slabs in many locations, even open areas below treeline.  These will likely continue to be reactive to the weight of a person or machine over the near term.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"20j1b","text":"The same conditions have formed fragile new cornice growth.
20-30 cm of recent storm snow has formed reactive storm slabs in the alpine and at treeline elevations. With rising temperatures throughout the day the new snow slab might become stiffer and a failure in the weak layer underneath might propagate wider than expected resulting in larger avalanches. The storm slabs are particularly reactive where they overlie surface hoar in sheltered areas at and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d87kn","text":"The new snow is redistributed by moderate to strong southwest wind and forms fresh wind slabs on lee terrain features at higher elevations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"arp8p","text":"Cornices might grow larger and become more fragile.
A critical load of new snow has accumulated above a recently buried weak layer in many parts of the region. Avalanche conditions are expected to become increasingly touchy as the new snow settles and forms cohesive slabs over this layer. Areas where wind loading has occurred are especially concerning.
5-45 cm of recent snow will form reactive storm slabs anywhere dense snow forms slab qualities over one of the recent surface hoar layers. Slabs will be particularly touchy in the lee of exposed ridge crests, wind affected treeline or open alpine slopes.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7b3tm","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ftjv0","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr7m0","text":"
Another 5-20 cm of snow is forecast by Sunday afternoon adding to the 2-25 cm that already overlies a known weak surface hoar layer.  There may be a second surface hoar layer and temperature / density changes within this recent snow that serve as failure planes.  Anticipate increased reactivity anywhere slab properties develop in this recent 5 to 45 cm of snow due to wind loading or warm temperatures as freezing levels rise.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"
By Monday afternoon up to 35 cm of recent snow may sit on top of a known weak layer  of surface hoar and crust.  Avalanches will be particularly touch anywhere moderate to strong south winds have transported snow into soft slabs  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5gtuf","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8vod5","text":"
By Sunday afternoon there will likely be 40-60 cm of fresh snow from the weekend's storm, resulting in thick and touchy storm slabs. Expect natural avalanches in steep terrain during periods of heavy loading, while human triggered avalanches will be likely throughout the day.
5-30 cm of new snow is expected to accumulate in the region by the end of the day on Thursday, making for a tricky regional variation in avalanche problems. Expect touchy surface instabilities limited to wind loaded pockets in lower snowfall areas. In higher snowfall areas to the west of the region, more widespread storm slabs are likely forming over a weak layer of surface hoar that is widespread in sheltered areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr7m0","text":"
15-30 cm of new snow will likely form reactive storm slabs at higher elevations and on wind loaded slopes. Loose dry avalanches might run longer than expected.
25-50 cm of recent snow has likely formed storm slabs in many areas. These will probably be the most reactive in wind loaded areas, and in sheltered terrain where they may sit on top of a weak layer of surface hoar.
If forecast snowfall (an additional 5-15 cm by Sunday afternoon) and wind values (moderate to strong south) are experienced, anticipate touchy wind slab formation.  This new snow adds to the trace to 15 cm reported on Saturday.  Wind slabs will be particularly touchy anywhere they sit on top of a slippery surface hoar layer.  Reactive wind slabs will likely form in open alpine terrain, leeward pockets at ridgecrests, around exposed terrain features and in open areas below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8vod5","text":"
20-40 cm of new storm snow has slowly accumulated over the past two days. Changing wind directions may deposit deeper and stiffer slabs on multiple aspects. I suspect that anywhere the new snow feels stiff and more cohesive the slab may be more reactive, especially where it sits above a buried weak layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ac2cc","text":"Loose-dry avalanches are likely from steeper slopes where there is little cohesion in the recent storm snow.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1rq0c","text":"Large, looming cornices exist along ridgelines.
25-60 cm of snow by Sunday afternoon will sit on top of a known weak layer of surface hoar, facets and crusts.  Within this new snow lies a second smaller surface hoar in addition to temperature and density changes that all may serve as failure planes.  Avalanche conditions are expected to become increasingly touchy anywhere recent snow forms cohesive slabs due to wind loading or warming temperatures below treeline.
A cohesive slab 50-80 cm thick now sits above a buried weak layer of surface hoar, surface facets and crust. These slabs have been very reactive to human triggers showing wide propagations in moderate to low angle terrain. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2icl6","text":"Persistent slabs have been catching people by surprise, so pay attention to signs of instability and stay clear of terrain traps like creeks, cliffs, and depressions below you.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"agiru","text":"
Storm slabs are likely most prevalent in the south and west of the region near the divide, where the most snow has accumulated. Use added caution anywhere you find more than 20 cm of soft snow. Otherwise, wind slab avalanches are expected to be widespread and across the entirety of the region from strong southwest wind pushing the 10 to 50 cm of snow into lee terrain features. Use particular caution on sun-exposed slopes as well as in lee terrain features near ridges. Conservative terrain travel is recommended until the snow has some time to bond to the snowpack.
By Sunday afternoon there will likely be 25-40 cm of fresh snow, resulting in thick and touchy storm slabs. Expect natural avalanches in steep and wind-affected terrain during periods of heavy loading, while human triggered avalanches will be likely throughout the day. Storm slabs may propagate widely as they sit atop a recently buried weak layer.
orecast 5-15 cm of snow by Sunday afternoon will add to the 15-30 cm of recent snow for a total of 20-45 cm.  Warm temperatures on Sunday along with winds and snow will promote slab development.   Looks for signs of instability as you travel and be suspicious of higher snowfall zones where over 30 cm of recent snow overlies a surface hoar / sun crust weak layer.    In lower snowfall areas, anticipate  touchy surface instabilities limited to wind loaded pockets where wind has transported snow into fat pockets of soft slabs.  In steep terrain everywhere, loose snow avalanches should be expected.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":472,"length":20,"key":0}],"data":{}},{"key":"cr7m0","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK"
30-60 cm of recent fresh snow sits on a widespread weak layer that consists of a crust, with facets and/or surface hoar on top of it. This weak layer may continue to produce avalanches for longer than what is typical after a storm on the South Coast.
The storm crossing the region will build thick and reactive storm slabs. In the north of the region these slabs will build overnight and be reactive first thing Sunday morning, while in the south of the region they will be building throughout the day.
25-50 cm of recent snow has formed reactive storm slabs in many areas and a bit more new snow may add to their sensitivity on Saturday. Slabs will probably be the most reactive in wind loaded areas, but sheltered terrain is equally concerning - here, slabs may be teetering on a fragile layer of surface hoar.
Forecast flurries and elevated winds will add to pockets of wind slab at upper elevations. Be ready to manage a more widespread storm slab problem at all elevations in the south of the region if snowfall exceeds forecast amounts.
It snowed 10 cm on Friday and with another 10 cm forecast for Friday night the recent snow might build reactive slabs in areas where it overlies surface hoar. This surface hoar layer is likely preserved in sheltered areas at treeline elevations and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eabnj","text":"Strong southwest wind will redistribute the storm snow and form touchy fresh wind slabs in lee terrain features on northerly and easterly aspects in the alpine and at treeline. Older wind slabs were formed on westerly aspects and may still be reactive. Wind slabs will be particularly reactive anywhere snow overlies buried surface hoar or crust. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7s24","text":"In steep and wind-protected areas loose snow avalanches (sluffs) are expected.
20-35 cm of recent storm snow has formed reactive storm slabs in the alpine and at treeline elevations. With relatively warm temperatures the new snow might become more bonded and become reactive particularly where it overlies surface hoar below treeline and in sheltered areas at treeline elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d87kn","text":"The new snow might be redistributed throughout the day by moderate southwest wind and form fresh wind slabs on lee terrain features at higher elevations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2a90a","text":"Loose dry avalanches might run longer than expected.
5-30 cm of new snow has accumulated in the region by Friday, making for a tricky regional variation in avalanche problems. In higher snowfall areas to the west of the region, more widespread storm slabs are likely forming over a weak layer of surface hoar that is widespread in sheltered areas.  Expect touchy surface instabilities limited to wind loaded pockets in lower snowfall areas. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr7m0","text":"
As wind increases to moderate overnight Friday recent low density snow will be available for transport.  Activity may increase throughout the day on Saturday as wind increases to strong from the south.  Reactive wind slabs will likely form in open alpine terrain, leeward pockets at ridgecrests, around exposed terrain features and in open areas below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8vod5","text":"
A critical load of new snow(15-45 cm) has accumulated above a recently buried surface hoar weak layer in many parts of the region. Avalanche conditions are expected to become increasingly touchy as the new snow settles and forms cohesive slabs over this layer. Areas where wind loading has occurred are especially concerning.
Storm slabs will be building throughout the day on Sunday, becoming increasingly reactive as more snow accumulates. This adds to slabs from a midweek storm that have been teetering on a fragile layer of surface hoar. Natural avalanches will be likely at higher elevations on wind loaded slopes, while human triggering is a serious concern at all elevations.
Saturday's storm will bring together the ingredients for new slab problems to form and become increasingly reactive over the day. Along with touchy wind slabs forming in typical leeward pockets, a critical load may form over a recently buried weak layer, affecting more sheltered locations.
Storm snow amounts of 60 cm (or deeper) by Monday evening will be common in the region. Given moderate southerly winds, expect fresh windslabs. All this snow will be \"upside down\" with the warm (cohesive, slabby) snow on top. I expect Storm Slab avalanches to become more common, deeper, wider, and run further.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2tl7s","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ckn0i","text":"There may be a second surface hoar layer and temperature / density changes within this recent snow that serve as failure planes.  Anticipate increased reactivity anywhere slab properties develop in this recent 5 to 45 cm of snow due to wind loading or warm temperatures as freezing levels rise.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"
Storm slabs will likely continue to be reactive on Tuesday, especially in wind loaded areas.
A storm slab problem exists in the south of the region, where recent snowfall has been significant (40-60 cm). Cooling temperatures will help to lock up storm slabs but some residual reactivity may still be observed in wind loaded features. Loose dry sluffing may also be observed in the new snow from overnight.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":54,"style":"BOLD"},{"offset":109,"length":2,"style":"BOLD"},{"offset":35,"length":5,"style":"UN
10-25 cm of new, low-density storm snow has slowly accumulated over the past two days. Changing wind directions may deposit deeper and stiffer slabs on multiple aspects. I suspect that anywhere the new snow feels stiff and more cohesive that the slab may be more reactive, especially where it sits above a buried weak layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"628t","text":"Loose-dry avalanches may be seen from steeper slopes where there is little cohesion in the recent storm snow.
10-25 cm of new, low-density storm snow has slowly accumulated over the past few days. Changing wind directions may deposit deeper and stiffer slabs on multiple aspects. Anywhere the new snow feels stiff and more cohesive may be more reactive, especially where it sits above a buried weak layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"628t","text":"Loose-dry avalanches may be seen from steeper slopes where there is little cohesion in the recent storm snow.
Recent variable wind direction will mean that wind slabs may be found on all aspects. A weak interface may exist in some locations approximately 60 cm down and could reach its threshold with wind loading, initiating a deeper slab. At this point, this interface seems spotty through the region and hasn't been as reactive as in the Lizard-Flathead region. However, it is something to keep on your radar.
20-30 cm of recent storm snow has formed reactive storm slabs at all elevations. The new snow slab becomes stiffer with the settlement of the snow and rising temperatures. A failure in the weak layer underneath the slab might propagate wider than expected resulting in larger avalanches. The storm slabs are particularly reactive where they overlie surface hoar in sheltered areas at and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d87kn","text":"The new snow is redistributed by moderate to strong southwest wind and forms fresh wind slabs on lee terrain features at higher elevations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"arp8p","text":"Cornices are growing larger and becoming more fragile.
Storm slabs will be building throughout the day on Monday, becoming increasingly reactive as more snow accumulates. This adds to slabs from last week's storm that have been teetering on a fragile layer of surface hoar. Natural avalanches will be likely at higher elevations on wind loaded slopes, while human triggering is a serious concern at all elevations.
Fresh and reactive storm slabs are expected to be widespread and easy to trigger.
Strong southwest wind and new snow forecast for Tuesday will build new and reactive storm slabs at all elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fr2a0","text":"Cornices are large and fragile. Cornice failures were reported on Monday, likely due to warming. They deserve respect and a wide berth from above and below.
Several days of intense snowfall has brought up to 100 cm of new snow to the region, resulting in reactive storm slabs. Human triggered avalanches will be likely throughout the day. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2q9qg","text":"
Touchy storm slabs are sitting on a very weak layer of surface hoar which is very likely to be reactive to human triggers, even in low angle terrain. Avalanches may be larger than expected due to the presence of this weak layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5gtuf","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8vod5","text":"
Touchy storm slabs are sitting on a very weak layer of surface hoar which is very likely to be reactive to human triggers, even in low angle terrain. Avalanches may be larger than expected due to the presence of this weak layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"
Touchy storm slabs are sitting on a very weak layer of surface hoar which is very likely to be reactive to human triggers, even in low angle terrain. Avalanches may be larger than expected due to the presence of this weak layer.
20-40 cm of new storm snow has slowly accumulated over the past few days. Changing wind directions may deposit deeper and stiffer slabs on multiple aspects. I suspect that anywhere the new snow feels stiff and more cohesive the slab may be more reactive, especially where it sits above a buried weak layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ac2cc","text":"
A surface hoar layer buried near the end of January is now down 25 to 50 cm and was quite sensitive to human triggering last week. Cold temperatures have likely helped to reduce activity on this interface, but it's still there and human triggered avalanches remain possible. This interface seems to be deepest and most sensitive to human triggering in the McBride area. This layer has been most sensitive right at treeline, but it may extend up into the alpine, and/or down into the trees in some locations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":414,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A weak layer of surface hoar is buried 60-100cm deep on sheltered slopes near and below treeline that may be possible to human trigger.
40-60 cm of recent snow has formed reactive slabs sitting on a persistent weak layer of surface hoar. These slabs may be especially reactive in wind affected terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":88,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/g
A weak layer of surface hoar may be buried 60-100cm deep on sheltered slopes near and below treeline. This layer may be reactive to human triggers in specific areas.
A weak layer of surface hoar is buried 40-70cm deep on sheltered slopes near and below treeline that may be possible to human trigger.
60-100 cm. of recent snow is sitting on a very reactive weak layer of surface hoar which has potential to surprise backcountry users by how easily it may be triggered and how wide the persistent slabs propagate across slopes. Recent avalanches on this layer have primarily been reported at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/g
40-60 cm of recent snow has formed reactive slabs sitting on a persistent weak layer of surface hoar. These slabs may be especially reactive in wind affected terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":88,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/g
Storm slabs will likely continue to be reactive, especially in wind loaded areas.
Strong southwest wind and new snow will build reactive storm slabs at all elevations. Cornices are large and fragile and don't respond well to rapid change- like new load from snow or rain, rapid warming or rapid cooling. They deserve respect and a wide berth from above and below.
0-50 cm of recent snow has formed reactive storm slabs sitting on a weak layer of surface hoar. These slabs may be especially reactive in wind affected terrain.
Storm slabs may be surprisingly large and easy to trigger due to the presence of buried weak layers of surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":103,"length":13,"key":0}],"data":{}}],"entityMap":{"0":{"type
Storm slabs may be surprisingly large and easy to trigger due to the presence of buried weak layers of surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":103,"length":13,"key":0}],"data":{}},{"key":"c1d1d","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9q9kb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type
Storm slabs may be surprisingly large and easy to trigger due to the presence of buried weak layers of surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":103,"length":13,"key":0}],"data":{}}],"entityMap":{"0":{"type
60-100 cm. of recent snow is sitting on a very reactive weak layer of surface hoar which has potential to surprise backcountry users by how easily it may be triggered and how wide the persistent slabs propagate across slopes. Recent avalanches on this layer have primarily been reported at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/g
Human triggering of this layer is likely. Small terrain features are producing small avalanche results, bigger features could produce larger more dangerous avalanches. 40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust (depending on elevation and aspect). The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline, but don't let your guard down elsewhere. These kinds of avalanches can happen in surprisingly mellow terrain and be triggered from a distance away.
40-65 cm sits above a buried weak layer of surface hoar, facets, and a crust. These slabs have been very reactive to human triggers, showing wide propagations in moderate to low angle terrain, and have been catching people by surprise.
A weak layer of surface hoar may be buried 40-70 cm deep on sheltered slopes near and below treeline. This layer may be reactive to human triggers in specific areas.
A storm slab problem exists in the south of the region, where recent snowfall has been significant (40-70 cm). Cooling temperatures will help to lock up storm slabs but some residual reactivity may still be observed in wind loaded features. Loose dry sluffing may also be observed in the new snow from overnight.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":54,"style":"BOLD"},{"offset":109,"length":2,"style":"BOLD"},{"offset":35,"length":5,"style":"UN
Human triggering of this layer is likely on the BC side of the region. Small terrain features are producing small avalanche results, bigger features could produce larger more dangerous avalanches. 40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust (depending on elevation and aspect). The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline, but don't let your guard down elsewhere. These kinds of avalanches can happen in surprisingly mellow terrain and be triggered from a distance away.
50-80 cm sits above a buried weak layer of surface hoar, facets, and a crust. These slabs have been very reactive to human triggers, showing wide propagations in moderate to low angle terrain. These avalanches have been catching people by surprise.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2icl6","text":"
Variable wind has formed reactive slabs on multiple aspects, and outflow winds continue to impact any remaining loose snow and reverse and cross load features. Avalanches will be most likely in wind loaded areas and where the snow feels stiff or punchy. Note that in some places avalanche hazard may be elevated where winds have penetrated into unexpected places even at lower elevations.
Outflow winds have been redistributing loose snow, building reactive slabs and reverse loading features. Avalanches will be most likely in wind loaded areas where the snow feels stiff or punchy. Note that in some places avalanche hazard may be elevated where winds have penetrated into unexpected places even at lower elevations.
Storm slabs will likely continue to be reactive, especially in wind loaded areas and in places that see more than 15 cm of new snow over the day Saturday.
Storm slabs will likely continue to be reactive, especially in wind loaded areas and in places that see more than 15 cm of new snow overnight.
Storm slabs will likely continue to be reactive, especially in wind loaded areas, and in any places that see more than 15 cm of new snow on Thursday.
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consists of a melt-freeze crust in some areas, surface hoar in sheltered areas, and facets in some areas. This layer has been the most reactive at treeline and below treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":207,"length":102,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
Fresh storm slabs are may be easy to trigger, especially in wind loaded areas at higher elevations. Be aware of the potential for wind loading on southerly aspects with strong northerly winds in the forecast.
Recent fresh snow combined with strong winds has formed reactive storm slabs in many areas, especially wind loaded terrain features. Be aware of the possibility for wind loading on southerly aspects with strong notherly winds in the forecast.
A cohesive slab 30-60 cm thick now sits above a buried weak layer of surface hoar, surface facets and crust. These slabs have been very reactive to human triggers showing wide propagations in moderate to low angle terrain. They have been catching people by surprise, so pay attention to signs of instability and stay clear of terrain traps like creeks, cliffs, and depressions below you.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"agiru","text":"
Up to 30 cm of new snow fell by Wednesday morning. Storm slabs may continue to be reactive on Thursday, especially in areas that received higher snowfall amounts. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4ivv0","text":"Loose dry avalanches may occur from steep terrain features.
30-60 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind will likely add cohesion and load to these weak layers resulting in a reactive persistent slab problem.
0-60 cm of recent snow has formed reactive storm slabs sitting on a weak layer of surface hoar. These slabs may be especially reactive in wind affected terrain.
Storm slabs may be surprisingly large and easy to trigger due to the presence of buried weak layers of surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":103,"length":13,"key":0}],"data":{}}],"entityMap":{"0":{"type
Storm slabs may be surprisingly large and easy to trigger due to the presence of buried weak layers of surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":103,"length":13,"key":0}],"data":{}},{"key":"c1d1d","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9q9kb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type
Storm slabs may be surprisingly large and easy to trigger due to the presence of buried weak layers of surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":103,"length":13,"key":0}],"data":{}}],"entityMap":{"0":{"type
A surface hoar layer buried near the end of January is now down 40 to 80 cm and has recently been quite sensitive to triggering. This layer has been the most sensitive right at treeline, but it is thought to extend into the alpine too.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":177,"length":8,"key":0}],"data":{}},{"key":"do7ku","text":"There is a deeper surface hoar layer down 60 to 100 cm in the northern part of the region around Pine Pass which may also remain sensitive to human triggering..","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consists of a melt-freeze crust in some areas, surface hoar in sheltered areas, and facets in some areas. This layer has been the most reactive at treeline and below treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":207,"length":102,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
40-60 cm of recent snow has formed reactive slabs sitting on a persistent weak layer of surface hoar. These slabs may be especially reactive in wind affected terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":88,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/g
40-60 cm of recent snow has formed reactive slabs sitting on a persistent weak layer of surface hoar. These slabs may be especially reactive in wind affected terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":88,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/g
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consists of a melt-freeze crust in some areas, surface hoar in sheltered areas, and facets in some areas. This layer has been the most reactive at treeline and below treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":207,"length":102,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
A cohesive slab 30-60 cm thick now sits above a buried weak layer of surface hoar, surface facets and crust. These slabs have been very reactive to human triggers showing wide propagations in moderate to low angle terrain. They have been catching people by surprise, so pay attention to signs of instability and stay clear of terrain traps like creeks, cliffs, and depressions below you.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"agiru","text":"
Storm slabs may be surprisingly large and easy to trigger due to the presence of buried weak layers of surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":103,"length":13,"key":0}],"data":{}},{"key":"c1d1d","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9q9kb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type
Storm slabs may be surprisingly large and easy to trigger due to the presence of buried weak layers of surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":103,"length":13,"key":0}],"data":{}}],"entityMap":{"0":{"type
A surface hoar layer buried near the end of January is now down 25 to 50 cm and was quite sensitive to human triggering last week. Cold temperatures have likely helped to reduce activity on this interface, but it's still there and human triggered avalanches remain possible. This interface seems to be deepest and most sensitive to human triggering in the McBride area. This layer has been most sensitive right at treeline, but it may extend up into the alpine, and/or down into the trees in some locations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":414,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A surface hoar layer buried near the end of January is now down 40 to 80 cm and has recently been quite sensitive to triggering. This layer has been the most sensitive right at treeline, but it is thought to extend into the alpine too.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":177,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consists of a melt-freeze crust in some areas, surface hoar in sheltered areas, and facets in some areas. This layer has been the most reactive at treeline and below treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":207,"length":102,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
Scattered flurries and moderate gusts throughout the day will continue to develop 20-30 cm thick storm slabs above a slippery crust layer. Human triggering will be likely in steep and wind affected terrain.
A storm slab problem exists in the south of the region, where 40-60 cm of new snow may sit on a crust on solar aspects and possibly surface hoar elsewhere. Looking forward, it is not clear whether the recent snow will bond, or whether this weak interface will remain a concern for several days. Given this uncertainty, a prudent approach would assume this is a suspect interface until we have more information.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":54,"style":"BOLD"},{"offset":154,"length":2,"style":"BOLD"},{"offset":35,"length":5,"style":"UNDERLINE"},{"offset":35,"length":5,"style":"ITALIC"}],"entityRanges":[],"data":{}},{"key":"46sms","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"en1vk","text":"Loose dry sluffing may also be observed in the new snow.
Steep, lee westerly aspects have been the most reactive during the strong outflow winds. With winds shifting again to the south west and potential new snow, expect reactive wind slabs on multiple aspects and elevations. Wind slabs will be especially susceptible to human triggering where stiff and punchy feeling snow sits on top of weak faceted crystals. Note that in some places avalanche hazard may be elevated where winds have penetrated into open pockets of terrain even at lower elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3o8g9","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"917c5","text":"
40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust. Recently, these slabs have been very reactive to human triggers, surprising riders, and showing wide propagations in moderate to low angle terrain. Moving forward, cold temperatures may decrease the cohesive nature of the slab, but any input of wind or precipitation could easily re-ignite this weak layer.
40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust. Recently, slabs have been very reactive to human triggers, surprising riders, and showing wide propagations in moderate to low angle terrain. This widespread layer has shown more reactivity on northerly aspects, however prominent surface hoar continues to be reported in test profiles on all aspects. Moving forward, cold temperatures may decrease the cohesive nature of the slab, but any input of wind or precipitation could easily re-ignite this weak layer. Heads up, we're moving into a low probability-high consequence scenario.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":90,"length":83,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
Human triggering of this layer is likely. Small terrain features are producing small avalanche results, bigger features could produce larger more dangerous avalanches. 40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust (depending on elevation and aspect). The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline, but don't let your guard down elsewhere. These kinds of avalanches can happen in surprisingly mellow terrain and be triggered from a distance away.
Watch for touchy storm slabs at all elevations, even in the trees.  20 to 40 cm of recent snow rests on an untested mix of nasty weak layers which include surface hoar, facets, crust and firm old wind slabs. Human triggering of these slabs is likely and storm slabs in wind exposed terrain may be quite sensitive. This problem is expected to get worse as we move through the weekend.
Human triggering of this layer is most likely on the BC side of the region, we are still working on figuring out its distribution. Small terrain features are producing small avalanche results, bigger features could produce larger more dangerous avalanches. 40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust (depending on elevation and aspect). The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline, but don't let your guard down elsewhere. These kinds of avalanches can happen in surprisingly mellow terrain and be triggered from a distance away.
Steep, lee westerly aspects have been the most reactive during the strong outflow winds. With winds shifting again to westerlies and potential new snow, expect reactive wind slabs on multiple aspects and elevations. Wind slabs will be especially susceptible to human triggering where stiff and punchy feeling snow sits on top of weak faceted crystals. Note that in some places avalanche hazard may be elevated where winds have penetrated into open pockets of terrain even at lower elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3o8g9","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"917c5","text":"
Despite decreasing avalanche danger, there remains a lingering possibility to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
Steep, lee, westerly aspects have been the most reactive during the strong outflow winds. With winds shifting again to westerlies, expect reactive wind slabs on multiple aspects and elevations. Wind slabs will be especially susceptible to human triggering where stiff and punchy feeling snow sits on top of weak faceted crystals. Note that in some places avalanche hazard may be elevated where winds have penetrated into open pockets of terrain even at lower elevations.
A weak layer of surface hoar is buried 40-70cm deep on sheltered slopes near and below treeline that may be possible to human trigger.
Human triggering of this layer is likely. Small terrain features are producing small avalanche results, bigger features could produce larger more dangerous avalanches. 40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust (depending on elevation and aspect). The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline, but don't let your guard down elsewhere! These kinds of avalanches can happen in surprisingly mellow terrain and be triggered from a distance away.
A weak layer of surface hoar is buried 60-100cm deep on sheltered slopes near and below treeline that may be possible to human trigger.
A surface hoar layer buried near the end of January is now down 40 to 80 cm and has recently been quite sensitive to triggering. This layer has been the most sensitive right at treeline, but it is thought to extend into the alpine too.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":177,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
As recently as Tuesday there were human triggered avalanches on this layer, including a size 2 remote triggered slide near Fernie. 40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust. It has been most reactive at the treeline elevation on north through east aspects, but surface hoar continues to be reported in test profiles on all aspects.
Despite decreasing avalanche danger, there remains a lingering possibility to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
Another round of new snow and wind will be forming reactive new wind slabs on Sunday. The freshest, touchiest slabs are expected to form in the lee of forecast south winds (think north slopes), but recent, potentially still reactive slabs may already be found on a wide range of aspects.
Despite decreasing avalanche danger, there remains a lingering possibility to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A weak layer of surface hoar is buried 80-130cm deep that may be possible to human trigger. This layer has shown reactivity on sheltered, open slopes at treeline or in \"treeline-like\" features, such as cutblocks, below treeline.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":90,"length":83,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches have greater potential to step down to deep weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
Despite decreasing avalanche danger, there remains a lingering possibility to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
20-40 cm of fresh snow with strong wind and increasing temperatures will likely form reactive slabs at all elevations. Pay close attention to changing conditions and avoid freshly wind loaded slopes.
This layer is STILL a player. Each day there is a steady trickle of rider triggered avalanches on this layer. Small terrain features are producing small avalanche results, bigger features could ruin your day. 40-65 cm snow sits above a buried weak layer of surface hoar, facets, and a crust (depending on elevation and aspect). Reports suggest it is touchiest on northerly and easterly aspects, but don't let your guard down elsewhere.
Outflow winds have been redistributing loose snow, building reactive slabs and reverse loading features. Avalanches will be most likely in wind loaded areas where the snow feels stiff or punchy. Note that in some places avalanche hazard may be elevated where winds have penetrated into unexpected places even at lower elevations.
Variable wind has formed reactive slabs on multiple aspects, and outflow winds continue to impact any remaining loose snow and reverse and cross load features. Avalanches will be most likely in wind loaded areas and where the snow feels stiff or punchy. Note that in some places avalanche hazard may be elevated where winds have penetrated into unexpected places even at lower elevations.
Steep, lee, westerly aspects have been the most reactive during the strong outflow winds. With winds shifting again to westerlies, expect reactive wind slabs on multiple aspects and elevations. Wind slabs will be especially susceptible to human triggering where stiff and punchy feeling snow sits on top of weak faceted crystals. Note that in some places avalanche hazard may be elevated where winds have penetrated into open pockets of terrain even at lower elevations.
New snow and shifting winds will feed into existing wind slab problems formed in response to recent outflow winds. Especially new but also recent slabs will be sensitive to human triggering on Monday. This is an all aspects, increasing avalanche problem. Some local winds have reached into lower elevations. Keep your guard up below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8khl9","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ctk0n","text":"Recent faceting and loss of cohesion in cornices can make them brittle and prone to fail. Give them a wide berth from above and below.
Despite decreasing avalanche danger, there remains a lingering possibility to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
A surface hoar layer buried near the end of January is now down 25 to 40 cm and was previously quite sensitive to human triggering. Cold temperatures, time, and the relatively shallow depth of the overlying slab have helped to reduce activity on this interface, but it's still there and human triggered avalanches remain possible. This interface seems to be deepest and most sensitive to human triggering in the McBride area. This layer has been the most sensitive right at treeline, but it may extend up into the alpine, and/or down into the trees in some locations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":474,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
Human triggering of this layer is likely. Small terrain features are producing small avalanche results, bigger features produce larger more dangerous avalanches. 40-65 cm of snow sits above a buried weak layer consisting of surface hoar, facets, and a crust (depending on elevation and aspect). The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline, but don't let your guard down elsewhere! These kinds of avalanches can happen in surprisingly mellow terrain and can be triggered from a distance away.
As of Monday afternoon the region has picked up 15 to 25 cm of snow which is not bonding well to the old surface.  We're expecting a northwest wind event Tuesday which may induce an avalanche cycle at upper elevations and will add stiffness to the storm slab problem.
In the southern half of the region 10 to 15 cm of snow is expected Tuesday with moderate northwest wind. Fresh storm slabs are expected to form which will likely be sensitive to human triggering.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6e1am","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2sol4","text":"Very little new snow is expected in the northern half of the region and this problem does not apply to those areas.
Another 25-45 cm new snow by the end of the day will build touchy storm slabs, especially where they sit on cold facets, surface hoar or hard wind affected surfaces. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fiaqk","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"elvj4","text":"Strong southwest wind will continue to form wind slabs in the alpine and at treeline. The wind will contribute to cornice growth.
Watch for the formation of touchy storm slabs at all elevations, even in the trees.  20 to 60 cm of recent snow rests on an untested mix of nasty weak layers which include surface hoar, facets, crust and firm old wind slabs. Human triggering of these slabs is likely and storm slabs in wind exposed terrain may be quite sensitive. This problem is expected to get worse as we move through the weekend.
5 to 15 cm of light density snow fell Sunday night into Monday accompanied by moderate southeast wind which has created a very soft and thin slab.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"353ie","text":"This slab rests on top of stiff wind slabs up to 40 cm in depth that have been most problematic on southeast, south and southwest facing slopes. These were created by strong outflow winds and have been the key element in a string of recent serious avalanche accidents. They may remain sensitive to human triggering.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a8ga9","text":"Give cornices a wide berth from above and below, recent faceting and loss of cohesion in cornices can make them brittle and prone to fail.
30-60 cm of snowfall will form thick and reactive storm slabs at higher elevations, with natural avalanches likely during periods of heavy precipitation. Human triggered avalanches are very likely.
Snowfall accumulating through the day is not expected to bond well to a slippery crust. Expect storm slab size and sensitivity to increase through Thursday.
In the southern half of the region, overnight flurries will add to 10 to 15 cm of snow accumulated through Tuesday. Storms slabs may remain sensitive to human triggering, especially where impacted by wind or solar input.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6e1am","text":"Smaller amounts of snow are expected in the northern half of the region and this problem does not apply to those areas.
Small changes to the upper snowpack could make persistent slabs easier to trigger. Currently, there is a widespread surface hoar layer buried 15 to 40 cm deep across the region. While there has been limited avalanche activity on this layer over the past week, cold weather has preserved this layer and it could re-emerge as a serious problem with additional loading or warming. This layer has been the most sensitive right at treeline, but it may extend up into the alpine, and/or down into the trees in some locations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":426,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
20 to 40 cm of recent snow rests on an untested mix of nasty weak layers which include surface hoar, facets, crust and firm old wind slabs. Storm slabs in wind exposed terrain may be quite sensitive to human triggering. This problem is expected to get worse as we move through the weekend. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62v7c","text":"
Stormy conditions will bring new snow and strong wind to the region. This snow will build on slabs formed earlier this week. These storm slabs are likely around 30 to 50 cm thick south of Crowsnest Pass and 20 to 30 cm thick elsewhere. The slabs sit on sugary faceted snow formed during the cold spell mid-February. Keep in mind that strong wind will also form wind slabs in exposed terrain at higher elevations.
Human triggering of this layer is likely. Small terrain features are producing small avalanche results, bigger features produce larger more dangerous avalanches. 40-65 cm of snow sits above a buried weak layer consisting of surface hoar, facets, and a crust (depending on elevation and aspect). The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline and the treeline/alpine interface, but don't let your guard down elsewhere! These kinds of avalanches can happen in surprisingly mellow terrain and can be triggered from a distance away.
Human triggering of this layer is still possible. Small terrain features are producing small avalanche results, bigger features can produce larger more dangerous avalanches. 40-65 cm of snow sits above a buried weak layer consisting of surface hoar, facets, and a crust (depending on elevation and aspect). ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7pdd5","text":"The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline and the treeline/alpine interface, but don't let your guard down elsewhere! These kinds of avalanches can happen in surprisingly mellow terrain and can be triggered from a distance away.
This layer continues to be easily triggered by skiers and riders. Small terrain features are producing small avalanche results, bigger features produce larger more dangerous avalanches. 40-70 cm of snow sits above a buried weak layer consisting of surface hoar, facets, and a crust (depending on elevation and aspect). ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7pdd5","text":"The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline and the treeline/alpine interface, but don't let your guard down elsewhere! These kinds of avalanches can happen in surprisingly mellow terrain and can be triggered from a distance away. This MIN report from Wednesday is a good illustration. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":327,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://w
An ongoing succession of storms has been building storm slabs over a range of weak snow grains from the last drought period. Concerns for recent storm interfaces and new wind slab formations are multiplied when we consider the deeper, widespread persistent weak layer that has been waking up under recent incremental loading.
10-50 cm of recent snow sits overtop of weak facets. Due to this weak interface, slabs may be surprisingly sensitive to triggering. In the east of the region where less than 20 cm of snow fell, the problem is specific to wind loaded terrain features. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b1sk2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9alns","text":"Cornices have experienced rapid growth with strong westerly winds. Fresh, unsupported tabs that break off can act as triggers on slopes below.
Storm slabs may continue to be reactive, especially in wind-loaded areas at higher elevations, and on south facing slopes if the sun comes out with some power. Variable winds in recent days may mean that wind loading may be found on all aspects.
Snowfall accumulating through the day is not expected to bond well to a slippery crust. Southwesterly winds will impact loose snow and build reactive slabs. Expect storm slab size and sensitivity to increase through Friday.
20 to 40 cm o snow is expected to accumulate by Thursday afternoon, forming new storm slabs. The wind is forecast to howl from the southwest to northwest, so wind slabs will rapidly build at treeline and alpine elevations too. Including the weekend's snow, around 80 to 120 cm of recent storm snow will have built above the surfaces formed mid-February, potentially including weak surface hoar and/or faceted grains. All of this stacks up to another natural avalanche cycle expected for Thursday.
15 to 35 cm of snow is expected to accumulate by Thursday afternoon, forming new storm slabs. The wind is forecast to howl from the southwest to northwest, so wind slabs will rapidly build at treeline and alpine elevations as well. Including the weekend's snow, around 40 to 80 cm of recent storm snow will have built above the surfaces formed mid-February, potentially including weak surface hoar and/or faceted grains. These slabs will remain likely for riders to trigger on Thursday. Should 25 cm or more snow accumulate, another natural avalanche cycle may occur on Thursday.
New snow and wind are expected to form touchy storm slabs reactive to human triggers; especially in wind affected terrain.
New snow and wind are expected to form touchy storm slabs reactive to human triggers; especially in wind affected terrain.
This layer continues to be easily triggered by skiers and riders. Small terrain features are producing small avalanche results, bigger features produce larger more dangerous avalanches. 40-65 cm of snow sits above a buried weak layer consisting of surface hoar, facets, and a crust (depending on elevation and aspect). ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7pdd5","text":"The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline and the treeline/alpine interface, but don't let your guard down elsewhere! These kinds of avalanches can happen in surprisingly mellow terrain and can be triggered from a distance away. This MIN report from Wednesday is a good illustration. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":327,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://w
New snow and wind are expected to form touchy storm slabs reactive to human triggers; especially in wind affected terrain.
Southerly winds and fresh flurries will encourage new wind slabs to form and hide older, stiffer wind slabs up to 40 cm in depth. The older slabs have been most problematic on southeast, south and southwest facing slopes, they were created by strong outflow winds and have been the key element in a string of recent serious avalanche accidents. With southerly winds, fresh new wind slabs may be more reactive on north and easterly slopes.
On Thursday fell 10 cm new snow throughout the region. In some colder areas as for example around Bear Pass and Rosswood fell 20-30 cm low density snow. Overnight 10-15 cm snow are expected and another 10-15 cm are in the forecast during the day on Friday. Storm slabs will form throughout the day and become increasingly reactive, especially where they sit on cold facets, surface hoar or hard wind affected surfaces. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fiaqk","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"elvj4","text":"Strong southwest wind will continue to form wind slabs in the alpine and at treeline. In areas with strong wind and intense snow fall slabs will form faster and be reactive sooner in the day.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"chn66","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b2tvj","text":"The strong southwest winds will promote cornice growth.
Accumulating snowfall will be most reactive where impacted by wind. Expect to find a growing and increasingly reactive slab as new snow accumulates, the deepest and most reactive deposits will be around ridges and lee features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7t4s2","text":"Fresh snow will also cover older, stiffer wind slabs up to 40 cm in depth. Last weekend, these older slabs were most problematic on southeast, south and southwest facing slopes, created by strong outflow winds and have been the key element in a string of recent serious avalanche accidents. Reactivity has since decreased over the week.
10 to 20 cm of new snow may consolidate into reactive storm slabs today. Steep terrain features will be the main slopes to look out for this problem. Also use caution in immediate lee terrain features if you see the wind is blowing the snow around.
New storm and wind slabs are expected to form over the day on Thursday as the next storm rolls through, so expect the danger to increase as the day progresses. Storm slabs formed earlier this week also remain likely to be triggered by riders. The slabs may be around 20 to 50 cm thick, depending on how much snow fell in your riding area, and they may overly sugar faceted grains. Conservative terrain travel is recommended until the snow has some time to bond to the snowpack.
Forecasts call for another 25-45 cm new snow by the end of Sunday with extreme wind and rising freezing levels. Storm slabs will become increasingly touchy, especially where they sit on cold facets, surface hoar or hard wind affected surfaces. The deepest and most reactive deposits will be in wind affected terrain.
New wind and storm slabs will form as the snow falls and the wind blows on Friday night and Saturday. The wind is forecast to be strong and from the southwest, so use particular caution near ridges in lee terrain features. As the snow accumulates in sheltered areas, new storm slabs may develop on all aspects and at all elevations.
Strong winds may spill over into low elevations Sunday night and Monday so watch for freshly wind affected snow lower down on the mountain than usual. Recent wind has varied in direction so wind slabs may be found on all aspects.
New snow and wind are expected to form storm slabs throughout the day that will be most reactive in wind affected terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8n6kh","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8srlc","text":"
Two persistent weak layers exist in the snowpack:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cl7a6","text":"The upper layer is buried 30 to 50 cm and primarily consists of sugary faceted grains. ","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"renq","text":"The deeper layer is buried 60 to 100 cm. This layer consists of surface hoar, faceted grains, and/or a hard melt-freeze crust. The problem has been most prevalent around treeline and in openings below treeline, but also reaches into the lower alpine. ","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ekahd","text":"These layers could be triggered by riders anywhere they still exist. A warm and sunny Monday may increase the likelihood of triggering these layers.
Strong southwest winds are forecast at all elevations Monday. The recent snow sits above a hard crust and could remain triggerable where wind deposits exist.
The next wave of storms is expected to deliver significant amounts of new snow and wind over the next few days which will likely form yet another round of fresh sensitive storm slabs.  All the while, the snowpack is still adjusting to the 30 to 70 cm of warm snow that fell last weekend. The upper snowpack needs time to adjust to this new load and really can't be trusted right now.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer being buried mid-February down 30-50 cm and has recently failed primarily on a sugary facet interface and the deeper layer of concern is found down 60-100 cm. This layer consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches are easily triggered by the weight of a person on this interface and have occurred on surprisingly shallow slope angles.
Continuing strong southwest wind will redistribute the new snow and older soft snow and form reactive wind slabs in the alpine and at treeline. Wind slabs will be especially reactive where they sit on a weak faceted crystal layer. The strong southwest winds will promote cornice growth.
New snow and wind have formed touchy storm slabs reactive to human triggers; especially in wind affected terrain.
Fresh snow combined with moderate to strong winds will likely continue to form fresh and reactive storm slabs, especially in wind-loaded areas. A change in wind direction on Friday may mean wind loading can be found on all aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"697lo","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9a6kn","text":"Cornices are experiencing rapid growth with strong west to southwest winds, use caution on ridgelines, and in terrain with cornices above.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3mmgd","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fqunl","text":"
Storm slabs will be very reactive to human triggering on Sunday with 20-40 cm of fresh snow expected. Natural avalanche activity will be likely in alpine and treeline terrain, especially in heavier snowfall areas near the coast. Strong to extreme wind will be the main driver of natural avalanche activity.
Fresh snow combined with moderate to strong winds will likely continue to form fresh and reactive storm slabs, especially in wind-loaded areas. A change in wind direction on Friday may mean wind loading can be found on all aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"do3pe","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9a0fp","text":"Cornices are experiencing rapid growth with strong west to southwest winds, use caution on ridgelines, and in terrain with cornices above.
New snow overnight Saturday and Sunday will build reactive storm slabs at upper elevations. The wind is forecast to howl from the northwest to southwest, so wind slabs will rapidly build too. All of this stacks up to another natural avalanche cycle Sunday.
Storm slabs will be very reactive to human triggering on Monday with 20-40 cm of fresh snow expected. Natural avalanche activity will be likely in alpine and treeline terrain, especially in heavier snowfall areas near the coast. Strong to extreme wind will be the main driver of natural avalanche activity.
Around 50 to 100 cm of snow has accumulated across much of the region, falling with strong southwest wind. The snow and wind has rapidly formed storm and wind slabs that likely resulted in an avalanche cycle on the weekend. With another 20 to 40 cm of snow coming Sunday night into Monday and strong wind, the avalanche cycle may continue.
Storm slabs sitting on a hard rain crust may continue to be reactive to human triggers; especially in wind affected terrain.
Winds blew hard from the southwest then turned northwest leaving exposed areas highly variable. The recent snow sits above a hard crust and could be easily triggered where wind deposits exist and on slopes exposed to the sun.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer being buried mid-February down 30-50 cm and has recently failed primarily on a sugary facet interface and the deeper layer of concern is found down 60-100 cm. This layer consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
20 cm. of new snow and strong westerly winds have formed storm slabs that are expected to remain reactive to human triggers; especially in wind affected terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8n6kh","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8srlc","text":"
Strong northerly winds are poised to set up a reverse-loading situation in exposed terrain for Saturday. Sunshine during the day could activate wind-loaded slopes.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":46,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"L
20 cm. of new snow and extreme east/southeast winds have formed storm slabs that are expected to remain reactive to human triggers; especially in wind affected terrain.
10-20 cm of new snow fell on Thursday with the heavier amounts in the southern parts of the region. This was accompanied by strong wind. This snow will build on slabs formed earlier this week. These storm slabs are likely around 40 to 70 cm thick south of Crowsnest Pass and 20 to 30 cm thick elsewhere. The slabs sit on sugary faceted snow formed during the cold spell mid-February. Keep in mind that strong wind will also form wind slabs in exposed terrain at higher elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2t70b","text":"Loose-dry avalanches may be easily triggered from steep terrain features, especially if the sun pokes out.
40-60 cm of new snow fell by Friday morning, forming new storm slabs. This brings 80 to 200 cm of snow above a mixed bag of old snow surfaces buried mid-February. In places where a weak bond exists, deeper and bigger slab avalanches may occur. The wind is forecast to howl from the northwest to southwest, so wind slabs will rapidly build at treeline and alpine elevations too. All of this stacks up to another natural avalanche cycle, especially on Sunday. Once the natural activity tapers you can expect human triggering to be likely.
40-80 cm of recent storm snow sits on a layer of weak, sugary facets. At upper elevations, the recent snow has been blown into reactive slabs in lee features. Recent avalanches have propagated widely and surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Two more persistent weak layers are buried between 80-200 cm. These have not produced recent avalanches in the region that we know of, but have been responsible for several recent large avalanches in the neighboring North Rockies region, including two fatal avalanches in the past week.
Around 30 to 50 cm of snow from the weekend has likely formed storm slabs in sheltered areas and been blown into wind slabs in exposed terrain. The snow may not bond well to underlying surfaces, meaning human-triggering of large avalanches could remain likely.
A succession of storms over the past week has been building storm slabs over a range of weak surface grains. Although surface instabilities are likely becoming more focused toward wind-loaded areas, the storm snow interface doesn't inspire much confidence. Lingering concern for this interface outside of wind-exposed areas are multiplied when we consider the deeper, widespread persistent weak layer that has been waking up under the incremental loading pattern.
30 cm of new snow fell Thursday. Storm and wind slab avalanches are reactive. The natural avalanche activity may taper off on Friday but these slabs will remain primed for skier and rider triggering. The slabs may be around 20 to 50 cm thick, depending on how much snow fell in your riding area, and they may overly sugar faceted grains. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4bhb","text":"Loose-dry avalanches may be easily triggered, especially if the sun pokes out.
Up to 50 cm of snow has accumulated by Thursday forming new storm slabs. The wind is forecast to howl from the southwest to northwest, so wind slabs will rapidly build at treeline and alpine elevations too. Including the weekend's snow, around 80 to 120 cm of recent storm snow will have built above the surfaces formed mid-February, potentially including weak surface hoar and/or faceted grains. All of this stacks up to another natural avalanche cycle. Once the natural activity tapers you can expect human triggering to be likely.
Storm slabs may continue to be reactive, especially in wind-loaded areas at higher elevations. Variable winds in recent days may mean that wind loading can be found on all aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3mmgd","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fqunl","text":"
Between rising temperatures, ramping winds, and continued snowfall, the 20-60 cm of recent low density snow is expected to rapidly settle and develop into a slab overtop of weak, sugary facets on Sunday. Storm slab size and sensitivity to triggering will likely increase throughout the day.
Forecasted snow and strong wind will rapidly form new storm and wind slabs. Weather models suggest 20 to 40 cm of snow by Monday late afternoon but enhanced snowfall may occur, bringing even more to the region. Best to avoid avalanche terrain if you find 25+ cm of snow accumulation, as an avalanche cycle may occur.
Surface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Storm slabs may continue to be reactive, especially in wind-loaded areas at higher elevations. Variable winds in recent days may mean that wind loading can be found on all aspects.
Up to 30 cm of new storm snow fell at upper elevations Sunday. Storm slabs are reactive at upper elevations, potentially running full path into lower elevations. The wind is forecast to howl from the southwest, so wind slabs will rapidly build too.
Between rising temperatures, ramping winds, and continued snowfall, 20-40 cm of recent low density snow is expected to develop into a slab overtop of weak, sugary facets on Sunday. Storm slab size and sensitivity to triggering will likely increase throughout the day.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62v7c","text":"
Between rising temperatures, ramping winds, and continued snowfall, the 20-60 cm of recent low density snow is expected to rapidly settle and develop into a slab overtop of weak, sugary facets on Sunday. Storm slab size and sensitivity to triggering will likely increase throughout the day.
Storm slabs may continue to be reactive, especially in wind-loaded areas at higher elevations. Variable winds in recent days may mean that wind loading can be found on all aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3mmgd","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fqunl","text":"
A frontal system leaving the region will leave reactive slabs above the rain line. Southern parts of the region could have 40-60 cm of snow forming a widespread storm slab problem on all steep slopes at upper elevations, while further north, slabs are most likely found on wind-loaded slopes. Strong alpine wind could still produce natural avalanches on freshly loaded alpine features.
New reactive wind and storm slabs have formed with the 30-60 cm+ new snow falling and strong winds blowing through the weekend. The snowpack will take time to adjust to the new load.
40-80 cm of recent storm snow sits on a layer of weak, sugary facets. Recent avalanches on this layer have propagated widely and surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Two more persistent weak layers are buried between 80-200 cm. These have not produced recent avalanches in the region that we know of, but have been responsible for several recent large avalanches in the neighboring areas like the North Rockies, including two fatal avalanches in the past two weeks.
The weekend's storm delivered 20-60 cm across the region. The combination of new snow and extreme southerly winds has likely left reactive slabs in steep terrain at higher elevations.
30-100 cm of recent storm snow continues to accumulate and settle into a slab in the mild temperatures. This storm slab sits overtop a thick layer of weak, sugary facets. At upper elevations, the recent snow will be easily blown around by strong to extreme westerly winds, forming thick, reactive slabs in lee features.
30-80 cm of recent storm snow continues to accumulate and settle into a slab in the mild temperatures. This storm slab sits overtop a thick layer of weak, sugary facets. At upper elevations, the recent snow will be easily blown around by strong to extreme westerly winds, forming thick, reactive slabs in lee features.
30-100 cm of recent storm snow continues to accumulate and settle into a slab in the mild temperatures. This storm slab sits overtop a thick layer of weak, sugary facets. At upper elevations, the recent snow will be easily blown around by strong to extreme westerly winds, forming thick, reactive slabs in lee features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62v7c","text":"
25-50 cm of recent snow, along with strong southwest wind, has likely left reactive slabs on steep and wind loaded slopes.
20 to 40 cm of snow and strong southwest wind are forecast above around 1500 m, which will form new storm slabs in sheltered areas and wind slabs in exposed terrain. Best to avoid avalanche terrain if you find 25+ cm of snow accumulation, as an avalanche cycle may occur.
40-100 cm of recent storm sits overtop a thick layer of weak, sugary facets. Due to this weak interface, storm slabs may be surprisingly sensitive to triggering. At upper elevations, the recent snow has likely been blown around by strong to extreme westerly winds, forming thick, reactive slabs in lee features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62v7c","text":"
40-80 cm of recent storm sits overtop a thick layer of weak, sugary facets. Due to this weak interface, storm slabs may be surprisingly sensitive to triggering. At upper elevations, the recent snow has likely been blown around by strong to extreme westerly winds, forming thick, reactive slabs in lee features.
40-80 cm of recent storm sits overtop a thick layer of weak, sugary facets. Due to this weak interface, storm slabs may be surprisingly sensitive to triggering. At upper elevations, the recent snow has likely been blown around by strong to extreme westerly winds, forming thick, reactive slabs in lee features.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer being buried mid-February down 30-50 cm and has recently failed primarily on a sugary facet interface and the deeper layer of concern is found down 60-100 cm. This layer consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches are easily triggered by the weight of a person on this interface and have occurred on surprisingly shallow slope angles.
10-30 cm of recent snow sits overtop of weak facets and/or extensively wind affected surfaces. Due to this weak interface, fresh slabs may be surprisingly sensitive to triggering. In the east of the region where less than 20 cm of snow fell, the problem is specific to wind loaded terrain features. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b1sk2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9alns","text":"Cornices have likely experienced rapid growth with strong westerly winds. Unsupported tabs that break off can act as triggers on slopes below.
Both storm and wind slabs remain likely to be triggered by riders on Tuesday. The slabs may be around 20 to 50 cm thick, depending on how much snow fell in your riding area. Conservative terrain travel is recommended until the snow has some time to bond to the snowpack.
Both storm and wind slabs remain likely to be triggered by riders on Tuesday. The thickest slabs are likely found at higher elevations as well as in the south and west of the region where the most snow fell. Conservative terrain travel is recommended until the snow has some time to bond to the snowpack.
Around 40 to 60 cm of snow has formed storm slabs in sheltered areas and been blown into wind slabs in exposed terrain. The snow may not bond well to underlying surfaces, meaning human-triggering of large avalanches remains likely.
Over 100 cm of snow has accumulated across much of the region, falling with strong south to west wind. Storm and wind slabs will likely remain touchy to human traffic on Tuesday, particularly where the snow overlies weak surface hoar and/or faceted grains. Don't let your guard down as the skies clear!
40-100 cm of recent storm sits overtop a thick layer of weak, sugary facets. Due to this weak interface, storm slabs may be surprisingly sensitive to triggering. At upper elevations, the recent snow has likely been blown around by strong to extreme westerly winds, forming thick, reactive slabs in lee features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62v7c","text":"
40-80 cm of recent storm sits overtop a thick layer of weak, sugary facets. In the Monashees, this interface appears to be bonding well, while reactivity may persist longer in the Selkirks. Human triggering is most likely in wind loaded features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"75b19","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ans60","text":"Cornices have likely experienced rapid growth with recent strong westerly winds. Fresh, unsupported tabs may weaken in the sun Wednesday. Tabs that break off can act as triggers on slopes below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3mmgd","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fqunl","text":"
10-30 cm of recent snow sits overtop of weak facets and/or extensively wind affected surfaces. Due to this weak interface, fresh slabs may be surprisingly sensitive to triggering. In the east of the region where less than 20 cm of snow fell, the problem is specific to wind loaded terrain features. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b1sk2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9alns","text":"Cornices have likely experienced rapid growth with recent strong westerly winds. Fresh, unsupported tabs may weaken in the sun Wednesday. Tabs that break off can act as triggers on slopes below.
40-80 cm of recent storm sits overtop a thick layer of weak, sugary facets. In the Monashees, this interface appears to be bonding well, while reactivity may persist longer in the Selkirks. Human triggering is most likely in wind loaded features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2jli","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cijaj","text":"Cornices have likely experienced rapid growth with recent strong westerly winds. Fresh, unsupported tabs may weaken in the sun Wednesday. Tabs that break off can act as triggers on slopes below.
Over 100 cm of snow has accumulated across much of the region, falling with strong south to west wind. Storm and wind slabs will likely remain touchy to human traffic on Wednesday, particularly where the snow overlies weak surface hoar and/or faceted grains. The next storm will start impacting the region Wednesday afternoon, bringing more snow and strong to extreme southwest wind.
It remains possible for riders to trigger both storm slabs in sheltered terrain and wind slabs in exposed terrain. These slabs may not be bonding well to underlying snow surfaces. The next storm starts impacting the region Wednesday afternoon, which will form new wind and storm slabs.
New reactive wind and storm slabs have formed with the 30-70+ new snow falling and strong winds blowing through the weekend. The snowpack will take time to adjust to the new load.
20-40 cm of new snow and strong westerly winds have formed storm slabs that are expected to remain reactive to human triggers on Saturday. Wind loaded and sun-exposed south-facing slopes will be especially suspect on Saturday.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8n6kh","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8srlc","text":"
Wet loose avalanches may release naturally on steep sun-exposed slopes.
Cranking southwest wind and new snow have formed fresh new wind slabs. Reactive storm slabs may be found in wind-sheltered terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2b1mr","text":"Large looming cornices exist. Be diligent and give them a wide berth from above and below.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer being buried mid-February down 30-50 cm and has recently failed primarily on a sugary facet interface and the deeper layer of concern is found down 60-100 cm. This layer consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
New snow and wind have formed touchy storm slabs reactive to human triggers, especially in wind affected terrain. Avoid steep south-facing slopes if the sun comes out.
Ongoing upper level wind from the northwest is likely reverse-loading recent snow into reactive wind slabs in atypical terrain features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":54,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"
Recent storm snow accumulations are up to 80 cm in some parts of the region. It will continue to snow over the next two days building reactive storm slabs through the forecast period.  Strong southwest wind persists, so wind slabs will rapidly build at upper elevations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"avso1","text":"Large looming cornices exist along ridgelines, they may weaken with the warm-up on Thursday.
Winds blew hard from the southwest then turned northwest leaving exposed areas highly variable. The recent snow sits above a hard crust and could be easily triggered where wind deposits exist.
40-80 cm of recent storm snow sits on a layer of weak, sugary facets. At upper elevations, the recent snow has been blown into reactive slabs in lee features. Recent avalanches have propagated widely and surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Two more persistent weak layers are buried between 80-200 cm. These have not produced recent avalanches in the region that we know of, but have been responsible for several recent large avalanches in the neighboring North Rockies region, including two fatal avalanches in the past week.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer being buried mid-February down 30-60 cm and has recently failed primarily on a sugary facet interface and the deeper layer of concern is found down 60-100 cm and consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine.
Loose wet avalanches are most likely on sun exposed slopes and at elevations experiencing above freezing temperatures for the first time. A moist or wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off. Keep in mind that loose wet avalanches can serve as triggers for persistent slabs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8srlc","text":"
Reactive wind slabs may be found in atypical terrain features. Wind direction has been predominantly westerly but may also may have southerly or northerly components, depending on elevation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46nh9","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"r04i","text":"Rising freezing levels on Sunday may promote settlement and slab development in the previously cold, dry snow at lower elevations. This could result in isolated reactivity where this snow sits over surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8srlc","text":"
An ongoing succession of storms has been building storm slabs over a range of weak grains from the last drought period. Concerns for recent storm interfaces and new wind slab formations are multiplied when we consider the deeper, widespread persistent weak layer that has been waking up under recent incremental loading.
Both storm and wind slabs remain likely to be triggered by riders on Wednesday. The slabs may be around 20 to 50 cm thick, depending on how much snow fell in your riding area. Use particular caution on sun-exposed slopes as well as in lee terrain features near ridges. Conservative terrain travel is recommended until the snow has some time to bond to the snowpack.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer being buried mid-February down 30-50 cm and has recently failed primarily on a sugary facet interface and the deeper layer of concern is found down 60-100 cm. This layer consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine.
Wet loose avalanches may release naturally on steep sun-exposed slopes.
Recent storm snow accumulations are up to 60-80 cm in some parts of the region. It will continue to snow over Wednesday night and Thursday building reactive storm slabs through the forecast period.  Strong southwest wind persists, so wind slabs will rapidly build at upper elevations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"avso1","text":"
Numerous persistent weak layers exist 50-200 cm below the surface. While there have not been reports of avalanches on these layers since last week, the current warming trend has us extra suspect of large natural and human triggered avalanches on these layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1q8iq","text":"Simple terrain and extra conservative decision making is strongly encouraged.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fojl5","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mieq","text":"
Wet loose avalanches are likely to release naturally on steep sun-exposed slopes.
Cranking south-southwest wind and new snow have formed fresh new wind slabs. Reactive storm slabs may be found in isolated wind-sheltered terrain. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"245es","text":"Large, looming cornices exist along ridgelines. They may become weak and fail during periods of solar radiation and rising freezing levels. Keep your head up and watch for obvious signs of warming like natural avalanches, snowballing, moist and sticky snow surfaces. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2b1mr","text":"
Cranking southwest wind and new snow have formed fresh new wind slabs. They may be more reactive where they overlie weak surfaces formed mid-February, potentially including weak surface hoar and/or faceted grains. Reactive storm slabs may be found in wind-sheltered terrain. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eku3i","text":"Large looming cornices exist. Be diligent and give them a wide berth from above and below. Fragile cornices may fail due to extreme wind.
Wet loose avalanches are likely to release naturally on steep sun-exposed slopes.
Wet loose avalanches are likely to release naturally on steep sun-exposed slopes.
Up to 60 cm of new storm snow fell by Monday building touchy storm slabs. Natural avalanche activity may taper on Tuesday, however; conditions may be primed for skier and rider triggering. The wind is forecast to howl from the southwest, so wind slabs will rapidly build at upper elevations.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer being buried mid-February down 30-60 cm and has recently failed primarily on a sugary facet interface and the deeper layer of concern is found down 50-90 cm and consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer being buried mid-February down 30-50 cm and has recently failed primarily on a sugary facet interface and the deeper layer of concern is found down 60-100 cm. This layer consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches are easily triggered by the weight of a person on this interface and have occurred on surprisingly shallow slope angles.
Two layers of concern exist and have been reactive in recent days. The upper layer is down 30-60 cm and has recently failed primarily on a sugary facet interface. The deeper layer is down 60-100 cm and consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine.
A wet loose avalanche problem exists in the south of the region, where sunny skies are coupled with freezing levels reaching 2000 m Wednesday. Loose wet avalanches are most likely on steep sun exposed slopes and at elevations experiencing above freezing temperatures for the first time.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":37,"length":26,"style":"ITALIC"},{"offset":37,"length":26,"style":"B
40-80 cm of recent storm snow sits on a layer of weak, sugary facets. At upper elevations, the recent snow has been blown into reactive slabs in lee features. Recent avalanches have propagated widely and surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Two more persistent weak layers are buried between 80-200 cm. These have not produced recent avalanches in the region that we know of, but have been responsible for several recent large avalanches in the neighboring North Rockies region, including two fatal avalanches in the past two weeks.
A wet loose avalanche problem exists in the south of the region, where sunny skies are coupled with freezing levels reaching 2200 m Thursday. Loose wet avalanches are most likely on steep sun exposed slopes and at elevations experiencing above freezing temperatures for the first time.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":37,"length":26,"style":"ITALIC"},{"offset":37,"length":26,"style":"B
Loose wet avalanches are most likely on slopes experiencing above freezing temperatures for the first time. A wet snow surface, pinwheeling, or point releases from rocks are good indicators that it is time to back off.
Loose wet avalanches are most likely on sun exposed slopes and at elevations experiencing above freezing temperatures for the first time. A moist or wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off. Keep in mind that loose wet avalanches and weakened cornices can serve as triggers for persistent slabs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8srlc","text":"
Recent storm snow accumulations are up to 60-80 cm in some parts of the region.  More snow in the forecast for Thursday night may keep these storm slabs reactive to human triggering on Friday, especially in wind loaded areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"avso1","text":"
Strong southwest winds are expected to continue and may form fresh and reactive wind slabs in leeward terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2b1mr","text":"
Two layers of concern exist and have been reactive over the past couple of days. The upper layer is down 30-50 cm and has recently failed primarily on a sugary facet interface. The deeper layer of concern is down 60-100 cm. This layer consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine.
Two layers of concern exist and have been reactive over the past couple of days. The upper layer is down 30-60 cm and has recently failed primarily on a sugary facet interface. The next layer is down 60-100 cm and consists of surface hoar, facets, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine.
Wet loose avalanches may release naturally on steep sun-exposed slopes. A wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off. Keep in mind that loose wet avalanches and weakened cornices can serve as triggers for persistent slabs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8srlc","text":"
Uncertainties about buried weak layers warrants conservative terrain choices. There are numerous persistent weak layers 50-150 cm below the surface that produced large natural and human triggered avalanches in the last week of February. We are uncertain whether time has helped these weaknesses heal or whether recent warming has kept them reactive.
Loose wet avalanches are possible through the forecast period, especially on steep solar aspects.  This problem will be amplified in the afternoon when the freezing levels rise and the sun is shining. With a solid overnight re-freeze, this problem will likely not exist in the morning. Pay close attention to warming and solar input. Moist snow is a good indication that the snowpack is heating up and destabilizing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ccuf0","text":"Cornice failure is likely as the strong mid-March sun and warming temperatures go to work. As cornices impact underlying slopes there is potential for them to trigger persistent slab avalanches.
The storm will bring 20 to 30 cm new snow overnight and another 20 to 35 cm during the day on Friday combined with extreme southwest wind. In addition, the freezing level is forecast to rise to 1000 m during the day. The new snow will be touchy, especially where it sits on surface hoar on northerly aspects and in sheltered terrain features around treeline or a melt-freeze crust on southerly aspects and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"88a2t","text":"The extreme wind will distribute the new snow and may form wind slabs farther down slopes than expected. The wind will contribute to cornice growth.
Two persistent weak layers exist in the snowpack:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"271l5","text":"The upper layer is buried 30 to 60 cm and primarily consists of faceted grains.","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"28fmc","text":"The deeper layer is buried 60 to 100 cm and consists of surface hoar, facets, and/or a crust. The problem has been most prevalent around treeline elevations and in openings below treeline, but also reaches into the lower alpine. ","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c2fn8","text":"These layers could be triggered by riders anywhere they still exist. A warm and sunny Monday may increase the likelihood of triggering these layers.
Loose wet avalanches in steep southerly terrain should be on your radar with sunny skies and freezing levels rising to ridge top on Thursday.
Up to 15 cm overnight and another 10 to 20 cm during the day on Friday will form reactive storm slabs. Strong southwest wind will redistribute the new snow and develop wind slabs in lee terrain features in the alpine and at treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cjpaj","text":"The wind will contribute to cornice growth.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces like moist or wet snow, snowballing or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cei80","text":"
Continued snow and southwesterly winds are forming fresh storm slabs; especially in wind affected terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fao93","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6oq96","text":"Recently formed slabs may be sitting on a weak layer of surface hoar on northerly aspects and in sheltered terrain or a crust on solar aspects and lower elevations.
Friday's storm brought 20 cm of new snow. Another 10 to 20 cm overnight and 10 to 20 cm during the day on Saturday will continue to form reactive storm slabs. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dhgf9","text":"Strong to extreme southwest wind will redistribute the new snow and develop wind slabs in lee terrain features in the alpine and at treeline. The strong wind may form wind slabs lower down on lee slopes. The wind will contribute to cornice growth and the additional load may lead to cornice failures.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fadsi","text":"The freezing level is forecast to rise to 1500 m during the day. The storm might keep temperatures low. However, in areas with 0 C or warmer temperatures loose wet avalanches and cornice failures may be expected.
Warm temperatures and sunshine are expected to create prime conditions for wet loose avalanches. Solar aspects will be the most likely trigger areas, but warm temperatures could potentially cause wet loose avalanches on all aspects.
Heavy snowfall on Friday is expected to rapidly accumulate above 1300 m, forming a widespread reactive storm slab problem. Storm slabs may be more reactive in wind-drifted areas. The combination of wind and snow has the potential to weaken cornices, which can act as triggers on slopes below.
In the north of the region, 15-25 cm of snow on Friday is expected to rapidly accumulate above 1400 m, forming a widespread reactive storm slab problem. Storm slabs may be more reactive in wind-drifted areas. The combination of wind and snow has the potential to weaken cornices, which can act as triggers on slopes below.","type":"unstyled","depth":0,"inlineStyl
Heavy snowfall on Friday is expected to rapidly accumulate above 1300 m, forming a widespread reactive storm slab problem. Storm slabs may be more reactive in wind-drifted areas. Anticipate deteriorating conditions.
Friday's storm brought 60+ cm new snow, especially in the southern part of the region. The storm will bring 20 to 30 cm new snow overnight and another 30 to 50 cm during the day on Saturday combined with extreme southwest wind. The new snow will be touchy, especially where it sits on surface hoar on northerly aspects and in sheltered terrain features around treeline or a melt-freeze crust on southerly aspects and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"88a2t","text":"The extreme wind will distribute the new snow and may form wind slabs farther down slopes than expected. The wind will contribute to cornice growth and the additional load might lead to cornice failures.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"emmrf","text":"In addition, the freezing level is forecast to rise to 1000 m during the night. The ongoing storm might keep temperatures low. However, in areas with 0 C or warmer temperatures loose wet avalanches and cornice failures may be expected.
Two persistent weak layers may be found in the snowpack:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cl7a6","text":"The upper layer is buried 30 to 50 cm and primarily consists of sugary faceted grains. ","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"renq","text":"The deeper layer is buried 60 to 100 cm. This layer consists of surface hoar, faceted grains, and/or a hard melt-freeze crust. The problem has been most prevalent around treeline and in openings below treeline, but also reaches into the lower alpine. ","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ekahd","text":"These layers could be triggered by riders anywhere they still exist. A mild, sunny Tuesday may increase the likelihood of triggering these layers.
50-80 cm of snow rapidly accumulated on Friday, forming a widespread reactive storm slab problem. These slabs will be more reactive in wind-drifted areas and will require time to heal.
Two layers of concern exist and have been reactive over the past week. The upper layer is down 30-60 cm and consists primarily of a sugary facet interface. The next layer is down 60-100 cm and consists of surface hoar, facets, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine.
Two layers of concern exist and have been reactive over the past week. The upper layer is down 30-50 cm and consists primarily of a sugary facet interface. The deeper layer of concern is down 60-100 cm. This layer consists of surface hoar, faceted grains, and/or a melt-freeze crust. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine.
Recent storm snow accumulations are up to 60-100 cm in some parts of the region.  A bit more snow and wind in the forecast for Friday night and Saturday may keep these storm slabs reactive to human triggering on Saturday, especially in wind loaded areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"avso1","text":"
Potentially large loose wet avalanches are likely Saturday afternoon, especially on steep solar aspects.  This problem will be amplified in areas that received the 20+ cm of new snow Friday night.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1oq9k","text":"
Two persistent weak layers exist in the snowpack:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"271l5","text":"The upper layer is buried 30 to 60 cm and primarily consists of faceted grains.","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"28fmc","text":"The deeper layer is buried 60 to 100 cm and consists of surface hoar, facets, and/or a crust. The problem has been most prevalent around treeline elevations and in openings below treeline, but also reaches into the lower alpine. ","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c2fn8","text":"These layers could be triggered by riders anywhere they still exist. A mild, sunny Tuesday may increase the likelihood of triggering these layers.
Slopes that face the sun will become unstable as they warm during the day.
Warm air temperature and sunshine will increase the likelihood of triggering wet loose avalanches, particularly on solar aspects. Resulting avalanches are expected to be small, so the most likely place to get into trouble is in steep, extreme terrain.
Natural avalanche activity is expected to taper throughout the day as the storm eases off, but human triggered avalanches will remain likely.
Warm temperatures and sunshine are expected to create prime conditions for wet loose avalanches. Solar aspects will be the most likely trigger areas, but warm temperatures could potentially cause wet loose avalanches on all aspects, especially at lower elevations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6b0au","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1ofql","text":"This problem is expected to be most pronounced in the south of the region, however it is a concern in the north as well.
Warm temperatures and sunshine are expected to create prime conditions for wet loose avalanches. Solar aspects are the most likely trigger areas, but warm temperatures could potentially cause avalanches on all aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f83p2","text":"
In the north of the region, 20-30 cm of snow rapidly accumulated above 1400 m on Friday, forming a widespread reactive storm slab problem. Storm slabs may be more reactive in wind-drifted areas. The combination of wind and snow has the potential to weaken cornices, which can act as triggers on slopes below.","type":"unstyled","depth":0,"inlineStyl
Recent storm snow accumulations are up to 60-100 cm in some parts of the region. Storm slabs may continue to be reactive to human triggering, especially in wind loaded areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"avso1","text":"
Two persistent weak layers exist in the snowpack. The upper layer is down 30-50 cm and consists primarily of facets. The deeper layer is down 60-100 cm. This layer consists of surface hoar, facets, and/or a crust. The problem has been most prevalent around treeline and in openings below treeline, but also reaches into the lower alpine. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ekahd","text":"In areas where the snow is dry (soft or wind-affected), or where a breakable crust exists, it may still be possible to trigger a persistent slab.
Two persistent weak layers exist in the snowpack. The upper layer is down 30-60 cm and consists primarily of facets. The next layer is down 60-100 cm and consists of surface hoar, facets, and/or a crust. The problem has been most prevalent around treeline elevations and in openings below treeline, but also reaches into the lower alpine. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c2fn8","text":"In areas where the snow is dry (soft or wind-affected), or where a breakable crust exists, it may still be possible to trigger a persistent slab.
Sun and warm daytime temperatures can quickly destabilize solar slopes and increase the likelihood of avalanches. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ehnm8","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Warm air temperature and sunshine will increase the likelihood of triggering wet loose avalanches, particularly on steep, sun-exposed slopes. Resulting avalanches are expected to mostly be small, so the most likely place to get into trouble is in extreme terrain.
Sun and warm daytime temperatures can quickly destabilize solar slopes and increase the likelihood of avalanches. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ceapv","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
torm and wind slabs will build over the day as a storm impacts the region. Storm slabs will rapidly build above the rain-snow line, rain will soak the snow below, and wind slabs are expected to form in lee terrain features at treeline and alpine elevations. It will be safest to avoid avalanche terrain during periods of rapid snowfall (2-3 cm per hour) and if you find 25 cm or more new snow.
The storm brought up to 50 cm new snow since Thursday and another 10 to 20 cm is forecast for tonight. Storm slabs will be reactive to human traffic, especially where it sits on surface hoar on northerly aspects and in sheltered terrain features around treeline or a melt-freeze crust on southerly aspects and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dhgf9","text":"Moderate westerly wind will continue to form fresh reactive wind slabs. Strong to extreme southwest wind redistributed the new snow and developed touchy wind slabs in lee terrain features in the alpine and at treeline. The strong wind may have formed wind slabs lower down on lee slopes than expected. The wind contributed to cornice growth and the additional load may lead to cornice failures.
Up to 120 cm snow fell since Thursday, especially in the southern part of the region. The storm will bring another 10 to 20 cm new snow overnight combined with moderate to strong westerly wind. The new snow will be touchy, especially where it sits on surface hoar on northerly aspects and in sheltered terrain features around treeline or a melt-freeze crust on southerly aspects and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"88a2t","text":"Strong to extreme southwest wind has formed wind slabs during the storm which might be found farther down slopes than expected. The wind contributed to cornice growth and the additional load might lead to cornice failures.
Storm slabs may build over the day, with potentially enough snow accumulation to form large avalanches by the afternoon. The snow is forecast to fall with strong wind, which may form new wind slabs in exposed treeline and alpine terrain. Should you be in an area that receives over 25 cm of snow, it will be safest to avoid avalanche terrain.
The recent storm brought up to 150 cm snow in the southern half of the region and about 50 cm in the north. The precipitation fell as rain below 900 m and saturated the upper snowpack. The storm snow will stay reactive while it settles, especially where it sits on surface hoar on northerly aspects and in sheltered terrain features around treeline or a melt-freeze crust on southerly aspects. Skiers and riders might be able to trigger avalanches, especially on convex rolls and unsupported slopes. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"88a2t","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3n1be","text":"Strong to extreme southwest wind will form touchy wind slabs in the alpine and at treeline where loose snow is available for transport. These slabs may be found farther down on lee slopes than expected. During the storm moderate to strong southerly wind has formed reactive wind slabs in lee terrain features. Triggered wind slabs may step down and release the entire storm snow. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9onpf","text":"The wind will contribute to cornice growth and the additional load might lead to cornice failures.
Up to 15 cm new snow are forecast by the end of the day. In the southwest of the region where the recent storm brought 50 to 100 cm, storm slabs might remain reactive to human traffic, especially where the snow sits on surface hoar on northerly aspects and in sheltered terrain features around treeline or a melt-freeze crust on southerly aspects and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"apbms","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1lau9","text":"Moderate to strong southwest wind will redistribute loose snow where available and develop touchy wind slabs in lee terrain features in the alpine and at treeline. Recent strong wind may have formed wind slabs lower down slopes than expected. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8r36a","text":"The wind will contribute to cornice growth and the additional load may lead to cornice failures.
The forecast calls for heavy snowfall combined with moderate to strong southwest wind Saturday night through Sunday. This will promote storm and wind slab formation at upper elevations.
Most of the region received around 20 cm new snow during the recent storm except for the southwest of the region where new snow amounts range between 50 and 100 cm. Storm slabs will remain reactive to human traffic, especially where it sits on surface hoar on northerly aspects and in sheltered terrain features around treeline or a melt-freeze crust on southerly aspects and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dhgf9","text":"Moderate westerly wind and strong southwest wind redistributed the new snow and developed reactive wind slabs in lee terrain features in the alpine and at treeline. The strong wind may have formed wind slabs lower down on slopes than expected. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8r36a","text":"The wind contributed to cornice growth and the additional load may lead to cornice failures.
The recent storm brought up to 150 cm snow in the southern half of the region and about 50 cm in the north. The storm snow will stay reactive while it settles, especially where it sits on surface hoar on northerly aspects and in sheltered terrain features around treeline or a melt-freeze crust on southerly aspects. The precipitation fell as rain below 900 m and saturated the upper snowpack.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"88a2t","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3n1be","text":"Moderate to strong southerly wind has formed wind slabs during the storm which will be reactive to skiers and riders. The wind contributed to cornice growth and the additional load might lead to cornice failures.
Potentially large loose wet avalanches are possible Sunday, especially on steep solar aspects.  This problem will be amplified in areas to the north that received up to 35 cm of recent snowfall.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ccuf0","text":"Cornice failure is likely this weekend as the strong mid-March sun and warming temperatures go to work.  As cornices impact underlying slopes there is potential for them to trigger persistent slab avalanches.
Sun and warm daytime temperatures can quickly destabilize solar slopes and increase the likelihood of avalanches. Things will deteriorate even faster if we don't get a good overnight re-freeze. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ehnm8","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps, and wet loose avalanches may trigger slabs where persistent layers still linger.
Sun and warm daytime temperatures can quickly destabilize solar slopes and increase the likelihood of avalanches. Things will deteriorate even faster if we don't get a good overnight re-freeze. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ceapv","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps, and wet loose avalanches may trigger slabs where persistent layers still linger.
round 10 to 20 cm of snow fell above around 1200 m on Sunday, forming storm slabs in sheltered terrain and wind slabs in exposed lee features. These slabs may still be reactive to riders on Monday. Below 1200 m, expect to find wet snow or hard melt-freeze crust.
Slopes that face the sun will become unstable as they warm during the day.
Loose wet avalanches are possible through the forecast period, especially on steep solar aspects.  This problem will be amplified in the afternoon when the freezing levels rise and the sun is shining. With a solid overnight re-freeze, this problem will likely not exist in the morning. Pay close attention to warming and solar input. Moist snow is a good indication that the snowpack is heating up and destabilizing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ccuf0","text":"Cornice failure is likely as the strong mid-March sun and warming temperatures go to work. As cornices impact underlying slopes there is potential for them to trigger persistent slab avalanches.
Storm slabs are most likely to be reactive:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4q00r","text":"- at elevations with dry snow experiencing rapid warming for the first time (1700-2000m)","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"v0fk","text":"- on dry southerly aspects seeing strong sun for the first time","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"clg4t","text":"- in freshly wind loaded terrain features at upper elevations
New snow and wind continue to build touchy storm slabs. Their size and sensitivity to triggering will increase throughout the day. Natural avalanches will be very likely in the alpine and on steep wind loaded slopes at treeline.
More snowfall and elevated southerly winds will continue forming fresh wind slabs on Thursday. Wind slabs are the main issue, but keep your guard up outside of exposed terrain. Recent accumulations may be sitting on a weak layer of surface hoar on sheltered northerly aspects or a crust on solar aspects and lower elevations.
Sun and warm daytime temperatures can quickly destabilize the upper snowpack and increase the likelihood of wet loose avalanches. Pinwheeling and moist surface snow are strong signs of this kind of instability. Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Sun and warm daytime temperatures can quickly destabilize the upper snowpack and increase the likelihood of wet loose avalanches. Pinwheeling and moist surface snow are strong signs of this kind of instability. Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
0-50 cm of recent snow or more has likely formed storm slabs on steep and wind loaded slopes. While these slabs are expected to strengthen quickly, they are likely to be reactive to human triggering on Saturday.
A bit more snow and a lot more wind is likely to continue forming fresh wind slabs over more stubborn older slabs on Friday. Although wind slabs are the main issue, keep your guard up in steep sheltered terrain. Recent accumulations may be sitting on a weak layer of surface hoar on north aspects or a crust on solar aspects and lower elevations.
Although the storm will ease on Saturday morning, there will be 30-50 cm of fresh snow and ongoing wind loading, leaving slabs primed for human triggering.
ew snow will form reactive slabs in areas that receive more than 20 cm of new snow, which is most likely at higher elevations and in lee terrain (north and east facing).
New snow will form reactive slabs in areas that receive more than 20 cm of new snow, which is most likely at higher elevations and in lee terrain (north and east facing slopes).","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"285o9","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e3p7u","text":"Note that there's been reports of large avalanches triggered by riders and cornices in the past week, so use additional caution in committing terrain with high consequences.
50+ cm of new snow is settling into widespread storm slabs in the west of the region, with about half this amount in shallower parts of the eastern slope. Snow that reacted in dry loose sluffs on Wednesday may react as a touchier slab on Thursday and beyond, particularly where wind loading has occurred.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4ru0s","text":"Expect warm new snow in steep lower elevations to shed easily in loose moist sluffs with the heat of the day.
A bit more snow and shifting wind are likely to continue forming fresh wind slabs over more stubborn older slabs on Saturday. Although new wind slabs are the main issue, keep your guard up in steep sheltered terrain. Recent accumulations may be sitting on a weak layer of surface hoar on north aspects or a crust on solar aspects and lower elevations.
ew storm slabs will rapidly grow with 20-35 cm of new snow expected to fall by Sunday evening. Human triggered avalanches will be concern on steep or wind affected slopes.
Moderate snowfall and high winds will form unstable new slabs to manage on Sunday, with distribution that will likely vary by location in the region. Expect thicker, more widespread storm slab formation in the snowier west of the region and potentially more limited wind slab distribution closer to Smithers. Potential may exist for larger, more destructive step-down avalanches to occur in sheltered, north-facing slopes where buried surface hoar could still be preserved.
The spring sun and rising freezing levels can pack a punch quickly and initiate loose wet avalanches on all aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3bpg7","text":"Watch for signs of instability like natural avalanche activity, wet or moist snow surfaces, and snowballing, especially on solar aspects.
Human triggered slabs are possible at upper elevations where there is 15-35 cm of storm snow. Pay attention to changes in new snow depth as you gain elevation, and be extra cautions on wind loaded slopes.
Forecast heavy snowfall and extreme winds will bring a spike in avalanche danger for Sunday. Expect to find touchy new slabs that increase in depth and reactivity over the day at all elevations, but especially up high. Potential may exist for large avalanches to step down to a deeper weak layer to create very large and destructive avalanches.
New storm slabs will grow throughout the day, with human triggered avalanches likely on steep and wind affected slopes once sufficient snow accumulates.
Heaps of new snow and high winds have formed a widespread new storm slab problem that's likely to increase in severity with elevation. Remain cautious if you're noting a generally good bond forming with the old surface, this bond may not be uniform and wind loaded areas are likely primed for human triggered avalanches.
The weekend's snow may be settling into storm slabs that could be triggered by riders. New slabs are also likely to form on Wednesday during a strong storm. Assess for slab properties during your travels and use particular caution in steep, committing terrain with high consequences. Note that wind slabs are also likely find in exposed terrain from storm snow being blown into lee terrain features from strong southwest wind.
0-50 cm of snow from Sunday's storm will leave storm slabs on steep and wind loaded slopes. While these slabs are expected to strengthen quickly, they will likely remain reactive to human triggering on Monday.
Storm slabs will likely remain reactive in areas of ongoing wind loading and will be especially sensitive to triggering when exposed to direct sun for the first time.
30-60 cm ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9a56u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7d75s","text":"Upper elevations may accumulate upwards of 15 cm overnight with gusty winds and another 10-15 through Wednesday. The touchiest deposits will be around ridges and areas loaded by wind. Be mindful that the slab could increase in reactivity through the day as temperatures warm or with solar input.
Any steep slope has the potential for storm slab avalanches on after 30-60 cm of snow fell on Wednesday. This snow has likely formed unstable slabs on wind loaded slopes at higher elevations. In steep sheltered terrain this snow may either result in dry loose or storm slab avalanches.
oose wet avalanches in steep southerly terrain should be on your radar with sunny skies and freezing levels rising to ridge top on Wednesday. A natural cycle is likely with spring sun hitting fresh storm snow for the first time.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"36gos","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1p9kp","text":"Leave slopes before they get moist and avoid overhead hazards like cornices and avalanche paths in the heat of the day.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cbreg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Touchy slabs will likely form at elevations above 1500 m on Saturday. Their size and likelihood will increase throughout the day as 15-30 cm of snow is expected with strong southwest wind. Natural avalanches will be likely in the alpine and on steep wind loaded slopes at treeline.
Natural avalanches are expected to be widespread with the arrival of the forecast weather.
Heavy snowfall and strong winds have formed a widespread new storm slab problem that's likely to increase in severity with elevation. Remain cautious if you're noting a generally good bond forming with the old surface, this bond may not be uniform and wind loaded areas are likely primed for human triggered avalanches.
New snow and strong winds have formed a widespread new storm slab problem that's likely to increase in severity with elevation. Remain cautious if you're noting a generally good bond forming with the old surface, this bond may not be uniform and wind loaded areas are likely primed for human triggered avalanches.
oose wet avalanches in steep southerly terrain should be on your radar with sunny skies and freezing levels rising to ridge top on Thursday again.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Reactive storm slabs are expected at upper elevations, especially in wind-loaded areas where fresh wind slabs may be the primary concern. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"75e5j","text":"Loose-dry avalanches may occur from steeper terrain features.
Touchy slabs are likely forming at elevations above 1500 m. Their size and likelihood will increase throughout the day as 15-30 cm of snow is expected with strong southwest wind. Natural avalanches will be very likely in the alpine and on steep wind loaded slopes at treeline.
Fresh storm slabs are forming at elevations above 1500 m. Their size and likelihood will increase throughout the day as new snow falls with strong southwest wind. Natural avalanches will be very likely in the alpine and on steep wind loaded slopes at treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"26ps7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"28uvl","text":"There are also some surface hoar and crust layers in the top 50 cm of the snowpack, and while none of these layers are overly concerning, they may act as sliding layers.
Sunshine may trigger wet loose avalanches on steep solar aspects.
Up to 35 cm of new snow and strong to extreme winds will quickly form a widespread new storm slab problem for Saturday. Manage the rising danger by sticking to simple, low angle, low consequence slopes and avoiding overhead hazard.  A natural avalanche cycle is expected by the end of the day.
Reactive storm slabs are expected at upper elevations, especially in wind loaded areas. A change in wind direction on Monday means that wind loading may be found on many aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ak7ur","text":"With so much new snow, keep in mind that short periods of direct sun could trigger natural avalanches.
A widespread new storm slab problem is expected to form in the region as 2-day storm totals of up to 70 cm materialize by the end of the day Sunday. Manage the rising danger by sticking to simple, low angle, low consequence slopes and avoiding overhead hazard.
New snow through Sunday night and shifting winds on Saturday are likely to form a reactive new wind slab problem in exposed areas. Investigate the bond of the new snow in sheltered areas to ensure a more widespread storm slab problem isn't in play. This is more likely in the higher snowfall south of the region.
et loose avalanches will become increasingly likely throughout the day on steep solar aspects at all elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
40-60 cm of fresh snow accompanied by strong wind have formed widespread storm slabs that are likely still easy to trigger, especially in wind-loaded areas. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"i745","text":"With all of this new snow, even brief periods of sun can quickly trigger natural avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dnkrf","text":"
Reactive storm slabs are expected at upper elevations, especially in wind loaded areas where fresh wind slabs may be the primary concern. A change in wind direction means that wind loading may be found on many aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ak7ur","text":"With so much new snow, keep in mind that short periods of direct sun could trigger natural avalanches.
Storm slabs are expected to stay reactive throughout the day, especially in wind loaded terrain and/or when sun is on the slopes.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8b0ol","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1stt0","text":"Monitor the bond of the new snow to old surfaces before committing to any terrain with consequences.
Wet loose avalanches will become increasingly likely throughout the day on steep solar aspects at all elevations.
Reactive storm slabs are expected at upper elevations, especially in wind-loaded areas where fresh wind slabs may be the primary concern. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"75e5j","text":"Loose-dry avalanches may occur from steeper terrain features.
Loose wet avalanches in steep southerly terrain should be on your radar with sunny skies and freezing levels rising to ridge top on Thursday.
The spring sun and rising freezing levels (2000 m) can pack a punch quickly and initiate loose wet avalanches on all aspects. At higher elevations where the recent storm snow deposits are deeper, loose wet avalanches may be able to entrain more snow or initiate larger wet slabs. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3bpg7","text":"Watch for signs of instability like natural avalanche activity, wet or moist snow surfaces, and snowballing, especially on solar aspects.
Reactive storm slabs are expected at upper elevations, especially in wind loaded areas where fresh wind slabs may be the primary concern. A change in wind direction means that wind loading may be found on many aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ak7ur","text":"With so much new snow, keep in mind that short periods of direct sun could trigger natural avalanches.
Storm slabs are most likely to be reactive:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fqejn","text":"- at elevations with dry snow experiencing rapid warming for the first time (around 1800 m)","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9e3q","text":"- on dry southerly aspects seeing strong sun for the first time","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bt8de","text":"- in freshly wind loaded terrain features at upper elevations
Storm slabs are most likely to be reactive:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"96mpq","text":"- at elevations experiencing rapid warming for the first time (1700-2000m)","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8cf16","text":"- on dry southerly aspects seeing strong sun for the first time","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ccgl5","text":"- in freshly wind loaded terrain features at upper elevations
torm slabs may form over the day above the rain-snow line as snow accumulates. Wind slabs may form in exposed terrain from strong southwest wind. These slabs may not bond well to an underlying hard melt-freeze crust.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2ucnt","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9mcjo","text":"
Wet loose avalanches will become increasingly likely throughout the day on steep solar aspects at all elevations.
et loose avalanches will become increasingly likely throughout the day on steep solar aspects at all elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Reactive storm slabs are expected at upper elevations, especially in wind-loaded areas.
New slabs may form as a storm impacts the region. Storm slabs may build by the end of the day with forecasted 10 to 20 cm of snow above 1400 m. Wind slabs may form in lee terrain features at high elevations from strong southwest wind. Assess for slab formation before committing yourself to consequential terrain features.
urface snow will lose cohesion and become unstable with solar warming during the day.
Around 10 to 20 cm of new snow may be found across the region, which may not bond well to an underlying crust or hard snow surface. The snow fell with strong southeast wind, likely forming wind slabs in lee terrain features at higher elevations. Carefully assess for slab properties and the bond of the snow to the underlying snowpack prior to committing yourself to consequential avalanche terrain.
Fresh snow and strong southwest winds are expected to form fresh slabs that will probably become more reactive as the day goes on and the snow piles up. Wind loaded areas are expected to be the most reactive.
Up to 25 cm could accumulate on Wednesday, creating fresh storm slabs that are likely to increase in reactivity throughout the day, particularly in wind loaded areas.
15-25 cm of new snow with strong southwest wind is expected during the day on Friday, likely forming slabs that may become increasingly reactive throughout the day.
20-30 of new snow and strong southwest wind are expected for form fresh storm slabs that will likely be reactive to human triggering. There is a higher likelihood of triggering these slabs in wind-drifted areas.
urface snow will tend to lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose avalanche could have big consequences.
urface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose avalanche could have big consequences.
Surface snow will lose cohesion and become unstable with sun and rising temperatures during the day. Avoid exposing yourself to terrain where a small wet loose avalanche could have big consequences.
Surface snow will lose cohesion and become unstable with sunshine and rising freezing levels during the day. Avoid exposing yourself to terrain where a small wet loose avalanche could have big consequences.
Wet loose avalanches will start to run naturally on steep solar aspects when the sun comes out.
0-25 cm of new snow with strong southwest wind is expected during the day on Friday, likely forming slabs that may become increasingly reactive throughout the day.
widespread storm slab problem will continue to take shape over Friday night, meaning touchy avalanche conditions for Saturday. The new snow will be especially sensitive to human triggers at higher elevations where wind loading has occurred and will likely shed naturally from steep, sun exposed slopes.
A widespread storm slab problem will continue to take shape over Friday night, meaning touchy avalanche conditions for Saturday. These conditions may be particularly heightened in the south of the region where greater snowfall typically accumulates. The new snow will be especially sensitive to human triggers at higher elevations where wind loading has occurred and will likely shed naturally from steep, sun exposed slopes.
Expect a north/south split for conditions on Saturday, with reactive new wind slabs scattered across in leeward terrain in the north of the region and a more widespread and reactive storm slab problem in the south (Coquihalla). Any solar exposure that occurs on steep slopes will likely cause loose snow to shed naturally.
Surface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
20-30 of new snow has formed widespread storm slabs that may be possible to trigger. This problem will be more pronounced in wind-drifted areas.
urface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
urface snow will tend to lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose avalanche could have big consequences.
Surface snow will lose cohesion and become unstable with sun and rising temperatures during the day.
Surface snow will lose cohesion and become unstable with sunshine and rising freezing levels during the day.
xpect natural wet loose avalanches to occur on solar aspects when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Expect small wet loose avalanches to occur naturally on solar aspects when the sun comes out.
Wet loose avalanches will start to run naturally on steep solar aspects when the sun comes out.
Wet loose avalanches will start to run naturally on steep solar aspects when the sun comes out.
Expect natural wet loose avalanches to occur on solar aspects when the sun comes out.
urface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Freezing levels are forecast to stay elevated and rise to 2700 m overnight. Clear skies during the night might allow for a shallow refreeze but the snow will likely become moist/wet in the early morning hours. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"54rdf","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9ga8n","text":"Back off slopes when the snow becomes moist or wet. Avalanches might grow larger than expected by entraining snow along the way and reach lower elevations. Avoid exposing yourself to slopes that are exposed to the sun, especially in the afternoon. Be aware what is above you when leaving your skiing or riding area.
Expect natural wet loose avalanches to occur on solar aspects when the sun comes out.
urface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. In areas that don't see a good refreeze the snow will likely become moist/wet in the early morning hours. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ddp6n","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ccohi","text":"Back off slopes when the snow becomes moist or wet. Avalanches might grow larger than expected by entraining snow along the way and reach lower elevations. Avoid exposing yourself to slopes that are exposed to the sun, especially in the afternoon. Be aware what is above you when leaving your skiing or riding area.
Expect natural wet loose avalanches to occur on solar aspects when the sun comes out.
Surface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Freezing levels are forecast to stay at 2400 m overnight. Clear skies during the night might allow for a shallow refreeze but the snow will likely become moist/wet in the early morning hours. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4h1qi","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fs52v","text":"Back off slopes when the snow becomes moist or wet. Avalanches might grow larger than expected by entraining snow along the way and reach lower elevations. Avoid exposing yourself to slopes that are exposed to the sun, especially in the afternoon. Be aware what is above you when leaving your skiing or riding area.
Surface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Freezing levels are forecast to stay at 2200 m overnight. Clear skies during the night might allow for a shallow refreeze but the snow will likely become moist/wet in the early morning hours. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"52cpp","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f5cu0","text":"Back off slopes when the snow becomes moist or wet. Avalanches might grow larger than expected by entraining snow along the way and reach lower elevations. Avoid exposing yourself to slopes that are exposed to the sun, especially in the afternoon. Be aware what is above you when leaving your skiing or riding area.
urface snow will tend to lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose avalanche could have big consequences.
Surface snow will lose cohesion and become unstable with sun and rising temperatures during the day.
Surface snow will lose cohesion and become unstable with sunshine and rising freezing levels during the day.
xpect natural wet loose avalanches to occur on solar aspects when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Continued warm temperatures may release loose wet avalanches. Pinwheeling is a good indicator of this type of instability. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":83,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=pinwheel#signs-of-instabilit
Rapid warming and sunshine will likely release loose wet avalanches. Pinwheeling is a good indicator of this type of instability.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":90,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
Rapid warming and sunshine may release loose wet avalanches. Pinwheeling is a good indicator of this type of instability.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
A rapidly warming snow surface may release small loose wet avalanches, especially on steep sunny aspects. Pinwheeling is a good indicator of this type of instability. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":127,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=pinwheel#signs-of-instabili
As freezing levels spike late Monday (and areas that get rain instead of snow), a wet loose hazard will persist anywhere the snowpack is moist or wet.
This layer has reached a tipping point. Depending on elevation and aspect, 40-100 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
Above freezing temperatures and periods of heavy rain may trigger loose wet avalanches. Pinwheeling and rollerballs are good indicators of this type of instability. Avoid steep slopes with saturated snow, as wet loose avalanches can be surprisingly destructive due to their density.
As freezing levels spike late Monday (and areas that get rain instead of snow), a wet loose hazard will persist anywhere the snowpack is moist or wet.
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
40-60 cm of snow sits above a layer of surface hoar and/or crusts. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":39,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
0-50 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
At elevations that receive rain (instead of snow) and above 0 temperatures, a wet loose hazard will persist as long as the snowpack is moist or wet.
This layer was touchy through the weekend producing large to very large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.  Wind exposed features are expected to be particularly problematic.
At elevations that receive rain (instead of snow) and above 0 temperatures, a wet loose hazard will persist as long as the snowpack is moist or wet.
A deluge of rain has saturated the snowpack. The snowpack will freeze with dropping temperatures, however a wet loose hazard will persist as long as the snowpack is moist or wet.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
40-60 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
A buried layer of surface hoar is now primed for human triggering. The slab rests on a persistent weak layer which has the capacity to  propagate avalanches  across terrain features. Wind exposed features are expected to be particularly volatile.
40-60 cm of snow currently sits above a buried crust from early December. A cohesive slab will likely exist with forecast snow, strong wind, and warming. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":162,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
A weak layer of surface hoar down 50-100 cm has been reactive to human triggers in the past week.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Sporadic avalanche activity on these layers this week means there is still potential for avalanches to step down to these layers.
This storm may well push the persistent slab problem over the tipping point resulting in large and surprisingly touchy avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
This storm may well push the persistent slab problem over the tipping point resulting in large and surprisingly touchy avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
40-60 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
New snow is falling with moderate to strong southwest winds and the resulting slabs will likely be the most reactive in wind loaded areas in the lee of ridgecrests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":145,"length":3,"key":0}],"data":{}},{"key":"80dbr","text":"New snow is rapidly settling with warm temperatures into a soft slab. Assess how each layer of new storm snow is bonding to previous layers.  Periods of heavy loading overnight Friday may create storm slab instabilities.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"euo8p","text":"Remember that smaller loose stuffs and storm slabs may trigger deeper weak layers in a  step down event.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":88,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=lee#leeward"}},"1":{"type":"LINK","mutabilit
40-60 cm of snow sits above a layer of surface hoar and/or crusts from early December. The new storm snow could easily step down to this interface, with surprising propagation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":39,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A weak layer of surface hoar  or crust layer from early December is now down 40-60 cm. Storm slab avalanches have and may easily step down to this layer, with surprising propagation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":16,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A weak layer of surface hoar  or crust layer from early December is now down 40-60 cm. Storm slab avalanches have and may easily step down to this layer, with surprising propagation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":16,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A weak layer of surface hoar  or crust layer from early December is now down 40-80 cm. Storm slab avalanches may easily step down to this layer, with surprising propagation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":16,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
0-50 cm of snow currently sits above a buried crust from early December. A cohesive slab will likely exist with forecast snow, strong wind, and warming. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":162,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
0-50 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
This layer has reached a tipping point. Depending on elevation and aspect, 40-100 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. Monday night's storm may add increased vigor to this problem. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A powerful storm will cross the region Monday and Monday night. Snowfall totals by Monday 4 PM are expected to be 10 to 20 cm, with another 20 to 40 cm expected Monday night. Storm and wind slabs will build over the day and will likely be reactive to riders.
Wet snow, possibly mixed with rain at lower elevations may result in wet loose avalanches.
A storm slab problem will develop as up 20 cm fresh snow falls by Saturday morning. Southwesterly winds will encourage slab development.
40-60 cm of snow sits above a layer of surface hoar and/or crusts. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":39,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
I'm not sure if this surface hoar and crust combo extends into the alpine. However at lower elevations it is reactive down 50 to 70cm below the surface.
his layer has reached a tipping point in parts of the region. 40-70 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":167,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
This layer has reached a tipping point. Depending on elevation and aspect, 40-100 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
A couple problematic layers exist around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Large avalanches have been triggered on these layers. The likelihood of triggering them will increase with further snow load on Saturday night.
Storm slabs to size 2 continue to release naturally and remain sensitive to human triggering.  The new snow from Saturday night may increase reactivity.
A couple problematic layers exist around 40 to 80 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There has not been notable avalanche activity on these layers but Saturday night's snow accumulation will increase the likelihood of triggering them.
A buried layer of surface hoar is now primed for human triggering. Monday night's storm is certain to add increased vigor to this problem. The slab rests on a persistent weak layer which has the capacity to  propagate avalanches  across terrain features. Wind exposed features are expected to be particularly volatile.
his layer has reached a tipping point in parts of the region. 40-70 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":167,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
Storm slabs to size 2 continue to release naturally and remain sensitive to human triggering.
A couple problematic layers exist around 40 to 80 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There has not been notable avalanche activity on these layers but Monday's storm could be the tipping point in the south of the region.
This storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
his layer has reached a tipping point in parts of the region. 70-110 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":159,"length":7,"key":0},{"offset":168,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
This storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
A couple problematic layers exist around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Large avalanches have been triggered on these layers.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
A buried layer of surface hoar is now primed for human triggering. This layer is thought to be widespread and was quite sensitive to triggering before Saturday Night's big storm. This interface is capable of producing large to very large avalanches that are capable of connecting bigger pieces of terrain.
This layer was touchy through the weekend producing large to very large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.  Wind exposed features are expected to be particularly problematic.
0-50 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. Monday night's storm is certain to add increased vigor to this problem. The slab rests on  a persistent weak layer which has the capacity to propagate avalanches  across terrain features. Wind exposed features are expected to be  particularly volatile.
The recent 30 to 40 cm of snow will take some time to stabilize. The snow fell with strong and variable wind, so deep and touchy deposits are likely found near ridges too. Don't let good visibility lure you into dangerous avalanche terrain.
his layer has reached a tipping point in parts of the region. 70-110 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":159,"length":7,"key":0},{"offset":168,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
A buried layer of surface hoar is now primed for human triggering. The slab rests on a persistent weak layer which has the capacity to  propagate avalanches across terrain features. A crust that formed in November is near the base of the snowpack is also a concern for human triggering.
The recent 30 to 40 cm of snow may take a bit longer to bond to the snowpack. The snow fell with strong and variable wind, so deep and touchy deposits are likely found near ridges too. Don't let good visibility lure you into dangerous avalanche terrain.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Where these weak layers exist, they are at a prime depth for humans to trigger them. Large avalanches have recently been triggered on these layers in the north of the region. Recent reports suggest the weak layers may be less prevalent in the south of the region, but they may still exist in localized pockets.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but they may still exist in localized pockets. There is uncertainty in how warm alpine air will affect the snowpack. It is possible that the warming may increase the potential of humans triggering these layers.
This layer was touchy through the weekend producing large to very large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.  Wind exposed features are expected to be particularly problematic.
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
A couple problematic layers exist around 40 to 90 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Where these layers exist, they are at a prime depth for humans to trigger them.
A couple problematic layers exist around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The possibility exists that humans could trigger this layer where it exists in the mountains.
We are expecting to wake up to snow accumulations of around 30 to 40 cm by Tuesday morning. Strong wind from variable directions may produce even deeper pockets. This snow will be reactive to riders and need time to bond to the snowpack. Don't let good visibility lure you into dangerous avalanche terrain.
A a variable but reactive weak layer exists a bit deeper than our recent storm snow. Depending on your elevation and location in the region, it may present as either surface hoar (especially reactive) or a mix of facets and crust (not much better!) Wind or storm slab releases may step down to this layer to create even larger avalanches.
A couple problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
A couple problematic layers exist around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A warming trend is forecast and there is uncertainty in how it will affect the snowpack. It is possible that the warming may make it more possible for humans to trigger these layers.
A couple of problematic layers may be found around 50 to 150 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
A couple problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
This layer has reached a tipping point. Depending on elevation and aspect, 80-150 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
ain on snow at lower elevations will likely create wet loose avalanches.
A couple of problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust.  With the addition of a significant load of new snow, avalanches may run naturally on these layers on Friday.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
A couple of problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
A weak layer of surface hoar down 40-90 cm. has been reactive to human triggers, resulting in large avalanches.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 60 to 80 cm deep. New snow loads before Christmas pushed the persistent slab problem over the tipping point resulting in large avalanches. Although the likelihood of triggering a persistent slab avalanche is decreasing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
A couple problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on two persistent weak layer which has the capacity to propagate avalanches across terrain features.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches.   ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"56fpu","text":"This problem can be avoided through conservative terrain choices.
Two persistent weak layers buried in early/mid-December are now 100 to 180 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
A couple problematic layers may be found around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There is uncertainty in how warm alpine air will affect the snowpack. It is possible that the warming may increase the potential of humans triggering these layers.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on two persistent weak layer which has the capacity to propagate avalanches across terrain features.
The recent 30 to 40 cm of snow may take a bit longer to bond to the snowpack. The snow fell with strong and variable wind, so deep and touchy deposits are likely found near ridges too. Don't let good visibility lure you into dangerous avalanche terrain.
This layer has reached a tipping point. Depending on elevation and aspect, 80-150 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
This layer was touchy through last weekend producing large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.
A slab rests on a persistent weak layer which has the capacity to  propagate avalanches across terrain features. A weak layer of surface hoar buried in the middle of the snowpack as well as a crust near the base of the snowpack are both a concern for human triggering.
0-100 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":96,"length":7,"key":0},{"offset":105,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
A weak layer of surface hoar down 50-100 cm has been reactive to human triggers, resulting in large avalanches.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
0-100 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":96,"length":7,"key":0},{"offset":105,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
A couple problematic layers may be found around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust.
A slab rests on a persistent weak layer which has the capacity to  propagate avalanches across terrain features. A weak layer of surface hoar buried in the middle of the snowpack as well as a crust near the base of the snowpack are both a concern for human triggering.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on two persistent weak layer which has the capacity to propagate avalanches across terrain features.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Previous to this weekend's storm, a buried persistent weak layer has been observed throughout the region 30 to 80 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes.  As the weekend storm progresses, a natural avalanche cycle may begin that could easily include very large persistent slab avalanches.  It will be a good test in the long run, but this is a time to avoid avalanche terrain while the snowpack tries to sort itself out.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches.   ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"56fpu","text":"This problem can be avoided through conservative terrain choices.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Recent large human triggered avalanches failed on a very weak layer of surface hoar down 30-40 cm. and the sensitivity of this layer was described as \"electric\"! This layer has been found to be most prevalent in the areas surrounding Valemount.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 50 to 100 cm deep. Be aware that new snow and wind will be adding additional load to this layer, and it may become reactive again this weekend.
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
A significant load is being applied to a persistent weak layer that is now buried between 60-150 cm. It is likely that avalanches will run on this layer during this weekend's storm.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Previous to the incoming storm snow, a buried persistent weak layer has been observed throughout the region 30 to 80 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes.  This storm may initiate a natural avalanche cycle that could easily trigger very large persistent slab avalanches.  It will be a good test in the long run, but this is a time to avoid avalanche terrain while the snowpack tries to sort itself out.
A weak layer of surface hoar is down 50-100 cm, and may still triggerable by humans in areas where it exists.
ain on snow at lower elevations may create conditions for wet loose avalanches.
Weak layers of surface hoar and/or faceted grains may be found above a melt-freeze crust. Recent reports suggest this weak layer may be less prevalent in the south of the region, but still exists in localized pockets.
Recent large human triggered avalanches failed on a very weak layer of surface hoar down 40-60 cm. This layer has been found to be most prevalent at treeline and below in the areas surrounding Valemount.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 50 to 100 cm deep. Be aware that new snow and wind will be adding additional load to this layer, and it may become reactive again this weekend.
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
A significant load is being applied to a persistent weak layer that is now buried between 60-150 cm. It is likely that avalanches will run on this layer during this weekend's storm.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. These layers have shown a downtrend in activity since early last week but there remains potential for avalanches to step down to these layers.
A couple of problematic layers may be found around 80 to 180 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
A couple of problematic layers may be found around 50 to 150 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
ain on snow at lower elevations may create conditions for wet loose avalanches.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
Previous to this weekend's storm, a buried persistent weak layer has been observed throughout the region 30 to 80 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes.  As the weekend storm progresses, a natural avalanche cycle may begin that could easily include very large persistent slab avalanches.  It will be a good test in the long run, but this is a time to avoid avalanche terrain while the snowpack tries to sort itself out.
ain on snow at lower elevations may create conditions for wet loose avalanches.
Concern remains for a very weak layer of surface hoar down 50-70 cm. This layer has been found to be most prevalent at treeline and below in the areas surrounding Valemount.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. Be aware that new snow and wind have been adding additional load to this layer, and it may become reactive again.
A couple of problematic layers may be found around 80 to 180 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
Weak layers of feathery surface hoar and/or sugary faceted grains may be found above a hard melt-freeze crust around 50 to 100 cm deep. Although avalanche activity hasn't been reported on these weak layers for over a week, the likelihood of triggering will be heightened during this stormy period.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
Concern remains for a very weak layer of surface hoar down 60-90 cm. This layer has been found to be most prevalent at treeline and below in the areas near Valemount.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer is being stressed as new snow slowly but steadily piles up. This incremental loading makes it difficult to predict when the tipping point will be reached. We are currently seeing only sporadic avalanches running on these layers, but they have been large (size 3). The uncertainty around this problem is best managed with conservative terrain selection.
Two persistent weak layers buried in early/mid-December are now 100 to 180 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next.
A couple of weak layers exist in the mid snowpack, buried 40-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and there has not been any associated avalanche activity in the last few days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
The snowpack across the region has some isolated areas where persistent weak layers remain a problem. These layers include feathery surface hoar and/or sugary faceted grains above a hard crust roughly 50 to 100 cm deep. This is a difficult problem to manage because it does not seem to exist in most terrain, but in the isolated places where it does exist it can produce large destructive avalanches.
Concern remains for a weak layer of surface hoar down 50-100 cm. This layer has been found to be most prevalent at treeline and below treeline in areas near Valemount.
Two persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevations bands.
Two persistent weak layers buried in early/mid-December are now down 90 to 150 cm. The form and distribution of these layers are highly variable and have may vary significantly from one valley to the next, and between elevation bands.
A couple of weak layers exist in the mid snowpack, buried 80-150 cm and 120-200 cm below the surface.  They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, even more destructive avalanches.
The snowpack across the region has some isolated areas where persistent weak layers linger, including surface hoar and/or facets above a crust 50 to 100 cm below the surface. This is a difficult problem to manage because it does not seem to exist in most terrain, but in the isolated places where it does exist it can produce large destructive avalanches.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer is being stressed as new snow slowly but steadily piles up. This incremental loading makes it difficult to predict when the tipping point will be reached. We are currently seeing only sporadic avalanches running on these layers, but they have been large. The uncertainty around this problem is best managed with conservative terrain selection.
A couple of problematic layers may be found around 80 to 180 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers. This problem seems to be most prevalent in the north of the region around Duffy Lake.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. These layers have shown a downtrend in activity since early last week but there remains potential for avalanches to step down to these layers.
ain on snow at lower elevations may create conditions for wet loose avalanches.
A persistent weak layer exists throughout the region 50-120 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes. Over the past week or so this problem has evolved into a 'low probability/high consequence' scenario that continue to demand careful terrain selection and diligent travel practices.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. These layers have shown a downtrend in activity since early last week but there remains potential for avalanches to step down to these layers.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer is being stressed as new snow slowly but steadily piles up. This incremental loading makes it difficult to predict when the tipping point will be reached. We are currently seeing only sporadic avalanches running on these layers, but they have been large. The uncertainty around this problem is best managed with conservative terrain selection.
A couple of problematic layers may be found around 80 to 180 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers. This problem seems to be most prevalent in the north of the region around Duffy Lake.
Concern remains for a weak layer of surface hoar down 50-100 cm. This layer has been found to be most prevalent at treeline and below treeline in areas near Valemount.
Two persistent weak layers buried in early/mid-December are now down 90 to 150 cm. The form and distribution of these layers are highly variable and have may vary significantly from one valley to the next, and between elevation bands.
Two persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevations bands.
A weak layer of surface hoar down 50-100 cm has been reactive to human triggers in the past week.
The snowpack across the region has some isolated areas where persistent weak layers linger, including surface hoar and/or facets above a crust 50 to 100 cm below the surface. This is a difficult problem to manage because it does not seem to exist in most terrain, but in the isolated places where it does exist it can produce large destructive avalanches.
A weak layer of surface hoar is down 50-100 cm. They are highly variable in form and distribution and have not been associated with recent avalanche activity. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of problematic layers may be found around 80 to 180 cm deep primarily in the north of the region (e.g. Duffey, Hurley), including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Although the likelihood of triggering is reducing, the consequences of doing so would be high.
A weak layer of surface hoar that was buried around Christmas is now down about 50-80 cm and is most prevalent at treeline and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5rgbr","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1capq","text":"Two more persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevation bands.
There are two persistent weak layers of concern within the snowpack. The shallower one consists of surface hoar and is down around 20-60 cm. At this depth, it remains triggerable by humans. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f4qc6","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8s26q","text":"The second layer is more variable but consists mainly of a crust and/or surface hoar down 70-100 cm. This layer has been found to be most prevalent at and below treeline in areas near Valemount.
There are two persistent weak layers of concern within the snowpack. The shallower one consists of surface hoar and is down around 20-60 cm.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f4qc6","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8s26q","text":"The second layer is more variable but consists mainly of surface hoar down 70-100 cm. This layer has been found to be most prevalent at treeline and below treeline in areas near Valemount. In some areas, this layer may exist as a crust.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer has been steadily stressed as new snow slowly piled up over the past week.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Sporadic avalanche activity on these layers this week means there is still potential for avalanches to step down to these layers.
A couple of problematic layers may be found around 80 to 180 cm deep primarily in the north of the region (e.g. Duffey, Hurley), including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Although the likelihood of triggering is reducing, the consequences of doing so would be high.
The snowpack across the region has some isolated areas where persistent weak layers linger, including surface hoar and/or facets above a crust 50 to 100 cm below the surface. This is a difficult problem to manage because it does not seem to exist in most terrain, but in the isolated places where it does exist it can produce large destructive avalanches.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequences of doing so remain high.
A persistent weak layer exists throughout the region 50-120 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes. Over the past week or so this problem has evolved into a 'low probability/high consequence' scenario that demands careful terrain selection and diligent travel practices.
A couple of weak layers exist in the mid snowpack, buried 50-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A weak layer of surface hoar that was buried around Christmas is now down about 40-80 cm and is most prevalent at treeline and below treeline. This layer remains at a depth triggerable by skiers, sleds and wind slab avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ji8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62lfc","text":"A deeper persistent weak layer buried in early/mid-December is now down 90 to 150 cm. Triggering these layers require large loads such as explosives or other avalanches in motion. The result of a step down to these layer would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":196,"length":9,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
A persistent weak layer exists throughout the region 50-120 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass seem to remain problematic and there has been some recent large avalanche activity on this interface.
A weak layer of surface hoar that was buried around Christmas is now down about 40-80 cm and is most prevalent at treeline and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ji8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62lfc","text":"Two more persistent weak layers buried in early/mid-December are now down 90 to 150 cm. The form and distribution of these layers are highly variable and have may vary significantly from one valley to the next, and between elevation bands.
A weak layer of surface hoar that was buried around Christmas is now down about 50-80 cm and is most prevalent at treeline and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5rgbr","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1capq","text":"Two more persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevation bands.
A weak layer of surface hoar that was buried around Christmas is now down about 50-80 cm and is most prevalent at treeline and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5rgbr","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1capq","text":"Two more persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevation bands.
A weak layer of surface hoar is down 50-100 cm, and may still be easy to trigger in some areas.
A weak layer of surface hoar is down 50-100 cm, and may still triggerable by humans in areas where it exists.
A couple of problematic layers may be found around 80 to 180 cm deep primarily in the north of the region (e.g. Duffey, Hurley), including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Although the likelihood of triggering is reducing, the consequences of doing so would be high.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer has been steadily stressed as new snow slowly piled up over the past week. The likelihood of triggering a persistent slab has reduced, but the consequences of doing so remain high.
A weak layer of surface hoar that was buried in early January may become reactive with the recent new load from snow and wind.
A couple of weak layers exist in the mid snowpack, buried 20-60 cm and 70-100 cm below the surface. They are highly variable in form and distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Sporadic avalanche activity on these layers this week means there is still potential for avalanches to step down to these layers.
There are two persistent weak layers of concern within the snowpack. The shallower one consists of surface hoar and is down around 20-60 cm. At this depth, it remains triggerable by humans. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f4qc6","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8s26q","text":"The second layer is more variable but consists mainly of a crust and/or surface hoar down 70-100 cm. This layer has been found to be most prevalent at and below treeline in areas near Valemount.
A persistent weak layer exists throughout the region 80 to 100 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass may remain problematic.
A weak layer of surface hoar that was buried around Christmas is now down about 40-80 cm and is most prevalent at treeline and below. This layer remains at a depth triggerable by skiers, sleds and wind slab avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ji8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62lfc","text":"A deeper persistent weak layer buried in early/mid-December is now down 90 to 150 cm. Triggering these layers require large loads such as explosives or other avalanches in motion. The result of a step down to these layer would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":196,"length":9,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 70 to 100 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.
ain will soak the snowpack below the snow-rain line. Riders could trigger the wet snow, with the highest consequence being in very steep and confining terrain features or above a cliff.
A couple of problematic layers may be found around 80 to 180 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
Freezing levels are expected to spike overnight and drop through Tuesday. Avoid steep slopes and terrain traps at low elevations where snow is wet.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 80 to 130 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of problematic layers may be found around 100 to 200 cm deep, including a weak layer of faceted grains above a melt-freeze crust. A few high-consequence avalanches have been triggered naturally and by riders recently near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46h8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dpkhg","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
A persistent weak layer exists throughout the region 80 to 90 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass seem to remain problematic and there has been some recent large avalanche activity on this interface.
A couple of weak layers exist in the mid snowpack, buried 30-100 cm and 80-140 cm below the surface. They are highly variable in distribution and trending toward dormancy, but they are being tested by a load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, even more destructive avalanches.
A couple of weak layers exist in the mid snowpack, buried 80-150 cm and 120-200 cm below the surface.  They are highly variable in distribution and trending toward dormancy, but they are being tested by a load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
Freezing levels are expected to spike overnight and drop through Tuesday. Avoid steep slopes and terrain traps at low elevations where snow is wet.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.
A couple of problematic layers may be found around 80 to 180 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 70 to 100 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
ain will soak the snowpack below the snow-rain line.  Natural and human triggered wet snow avalanches are likely on Tuesday. ","type":"unstyled","depth":0,"inlineSt
A couple of weak layers exist in the mid snowpack, buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but they are being tested by a load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
Weak layers of surface hoar exist 65-140 cm deep in sheltered treeline terrain (and below). These layers are highly variable in form and distribution. A widespread buried crust also exists near the base of the snowpack. Although these layers have not been associated with recent avalanche activity, they are being tested by a new load of new snow and potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, more destructive avalanches.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46h8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dpkhg","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
Warm temperatures will moisten the snowpack and a present wet-loose hazard. Avoid steep slopes and terrain traps at low elevations where the snow is wet.
Rain is expected up to 1400 m on Thursday night, and 1000 m on Friday. Wet loose avalanches can be expected in areas where the snow feels wet.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered naturally and by riders recently near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46h8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dpkhg","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
A problematic layer consisting of sugary faceted grains over a crust may be found around 200 cm deep. The likelihood of triggering an avalanche at this interface has reduced, but the consequence of doing so remains high.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8s7k1","text":"This problem is most prominent along the northwestern border of the region and nonexistent in the south.
A weak layer of surface hoar buried Jan 11 may be found 40-60 cm deep on open, sheltered slopes near and below treeline. There is uncertainty in the distribution and sensitivity of this persistent slab problem across the region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":186,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A persistent weak layer exists throughout the region 80 to 100 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass may remain problematic.
A problematic layer consisting of sugary faceted grains over a crust may be found around 200 cm deep. This problem is most predominant along the northwestern border of the region. The likelihood of triggering an avalanche at this interface has reduced, but the consequence of doing so remains high.
A couple of weak layers exist in the mid snowpack, buried 40-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and there has not been any associated avalanche activity in the last few days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A persistent weak layer exists throughout the region 80 to 100 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass may remain problematic.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 70 to 100 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
ain will soak the snowpack below the snow-rain line. With forecast freezing levels dropping to 700 m this may only be a problem below treeline where the snow doesn't freeze into a crust.
A weak layer of surface hoar is down 50-100 cm. They are highly variable in form and distribution and have not been associated with recent avalanche activity. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of weak layers exist in the mid snowpack, buried 50-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of weak layers exist in the mid snowpack, buried 20-60 cm and 70-100 cm below the surface. They are highly variable in form and distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of weak layers exist in the mid snowpack, buried 20-60 cm and 70-100 cm below the surface. They are highly variable in distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of weak layers exist in the mid snowpack, buried 50-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A weak layer of surface hoar is down 50-100 cm. They are highly variable in form and distribution and have not been associated with recent avalanche activity.  A buried  crust near the base of the snowpack has not shown recent reactivity but remains concern. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of weak layers exist in the mid snowpack, buried 40-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and there has not been any associated avalanche activity in the last few days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches have greater potential to step down to deep weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
A weak layer of surface hoar buried Jan 11 can be found 40-60 cm deep. There is uncertainty with how this persistent slab problem will react to the load from the new snow and wind. A couple of surface hoar layers from December can still be found buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but the possibility exists for avalanches to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":106,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A problematic layer consisting of sugary faceted grains over a crust may be found around 200 cm deep. This problem is most predominant in the north of the region (e.g. Duffey, Hurley). The likelihood of triggering an avalanche on these layers has reduced, but the consequence of doing so remains high.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 80 to 130 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 80 to 130 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.
A couple of problematic layers may be found around 100 to 200 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of problematic layers may be found around 100 to 200 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of problematic layers may be found around 100 to 200 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of weak layers exist in the mid snowpack, buried 30-100 cm and 80-140 cm below the surface. They are highly variable in distribution and trending toward dormancy, but they are being tested by a new load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, even more destructive avalanches.
A couple of weak layers exist in the mid snowpack, buried 80-150 cm and 120-200 cm below the surface.  They are highly variable in distribution and trending toward dormancy, but they are being tested by a new load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
A couple of weak layers exist in the mid snowpack, buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but they are being tested by a new load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
A couple of weak layers exist in the mid snowpack, buried 50-100 cm and 80-140 cm below the surface. They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, even more destructive avalanches.
Weak layers of surface hoar exist 65-140 cm deep in sheltered treeline terrain (and below). These layers are highly variable in form and distribution. A widespread buried crust also exists near the base of the snowpack. Although these layers have not been associated with recent avalanche activity, they are being tested by a new load of new snow and potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger more destructive avalanches.
A couple of weak layers exist in the mid to lower snowpack, buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
Weak layers of surface hoar exist 50-150 cm deep in sheltered treeline terrain (and below). These layers are highly variable in form and distribution. A widespread buried crust also exists near the base of the snowpack. Although these layers have only been associated with isolated recent avalanche activity, they are adjusting to a new load of new snow and potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, more destructive avalanches.
Rain below treeline in the south of the region may produce wet loose avalanches. Avoid steep slopes and terrain traps at low elevations where the snow is wet.
The likelihood of triggering a weak layer of surface hoar buried Jan 11 buried 50-70 cm deep is decreasing, but it may still persist on sheltered, open slopes near treeline. There is uncertainty as to the distribution and sensitivity to triggering of this persistent slab problem across the region. The possibility exists for avalanches in the surface snow to step down to these layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":256,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A couple of weak layers exist in the mid snowpack, buried 80-150 cm and 120-200 cm below the surface.  They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, even more destructive avalanches.
Weak layers of surface hoar exist 50-150 cm deep in sheltered treeline terrain (and below). These layers are highly variable in form and distribution. A widespread buried crust also exists near the base of the snowpack. Although these layers have only been associated with isolated recent avalanche activity, they are adjusting to a new load of new snow and potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, more destructive avalanches.
A couple of weak layers exist in the mid snowpack, buried 50-100 cm and 80-140 cm below the surface. They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, even more destructive avalanches.
A couple of weak layers exist in the mid to lower snowpack, buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
A persistent weak layer exists throughout the region 80 to 100 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass may remain problematic.
A weak layer of surface hoar buried Jan 11 can be found 40-60 cm deep. There is uncertainty with how this persistent slab problem will react to the load from the new snow and wind. A couple of surface hoar layers from December can still be found buried 50-100 cm and 80-140 cm below the surface. They are highly variable in distribution and trending toward dormancy, but the possibility exists for avalanches to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":106,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 can be found 50-70 cm deep. There is uncertainty with how this persistent slab problem will react to the load from the recent snow and wind. The possibility exists for avalanches in the storm snow to step down to these layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":106,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Wet loose avalanches are likely at low elevations where the precipitaion falls as rain.
A weak layer of surface hoar buried Jan 11 may be found 50-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. The possibility exists for avalanches in the surface snow to step down to these layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be found 40-60 cm deep on open, sheltered slopes near and below treeline. There is uncertainty in the distribution and sensitivity of this persistent slab problem across the region. A couple of surface hoar layers from December can still be found buried 50-100 cm and 80-140 cm below the surface. They are highly variable in distribution and trending toward dormancy, but the possibility exists for avalanches in the surface snow to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":186,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
The likelihood of triggering a weak layer of surface hoar buried Jan 11 buried 40-60 cm deep is decreasing, but it may still persist on sheltered, open slopes near treeline. There is uncertainty as to the distribution and sensitivity to triggering of this persistent slab problem across the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. The possibility exists for avalanches in the surface snow to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":256,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A couple of problematic layers may be found around 100 to 200 cm deep, including a weak layer of faceted grains above a melt-freeze crust. A few high-consequence avalanches have been triggered naturally and by riders recently near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"jn2n","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
A weak layer of surface hoar buried Jan 11 can be found 40-60 cm deep. On solar aspects, this surface hoar layer may be found near a thin crust. There is uncertainty with how this persistent slab problem will react to the load from the new snow and wind.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":180,"length":15,"key":0}],"data":{}},{"key":"dm0qb","text":"Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type
A problematic layer consisting of sugary faceted grains over a crust may be found around 200 cm deep. The likelihood of triggering an avalanche at this interface has reduced, but the consequence of doing so remains high.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8s7k1","text":"This problem is most prominent along the northwestern border of the region and nonexistent in the south.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
New snow is stressing a widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it. This layer is roughly 75-115 cm deep and is expected to produce large avalanches for longer than what is typical after a storm on the South Coast.
A weak layer of surface hoar buried Jan 11 may be found 40-60 cm deep on open, sheltered slopes near and below treeline. There is uncertainty in the distribution and sensitivity of this persistent slab problem across the region.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":186,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be found 50-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be possible to trigger on open, sheltered slopes near and below treeline.  This weak layer can be found buried 50-70 cm deep. Recent avalanche activity demonstrates that this layer is likely to be reactive where it has been preserved.
Persistent weak layers that were buried in January and February could become reactive again with intense solar radiation and high freezing levels.
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline. There is uncertainty as to the distribution and sensitivity to triggering of this persistent slab problem across the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. The possibility exists for avalanches in the surface snow to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":200,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
50-70 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consits of a melt freeze crust in some areas, surface hoar in shetered areas, and facets in some areas as well.
A weak layer of surface hoar buried Jan 11 may be possible to trigger on open, sheltered slopes near and below treeline.  This weak layer can be found buried 50-70 cm deep. Recent avalanche activity demonstrates that this layer is likely to be reactive where it has been preserved.
A weak layer of surface hoar buried Jan 11 may be found 50-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be found 40-60 cm deep on open, sheltered slopes near and below treeline. There is uncertainty in the distribution and sensitivity of this persistent slab problem across the region.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":186,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline. There is uncertainty as to the distribution and sensitivity to triggering of this persistent slab problem across the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. The possibility exists for avalanches in the surface snow to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":200,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be found 40-60 cm deep on open, sheltered slopes near and below treeline. There is uncertainty in the distribution and sensitivity of this persistent slab problem across the region.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":186,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be possible to trigger on open, sheltered slopes near and below treeline.  This weak layer can be found buried 50-70 cm deep. Recent avalanche activity demonstrates that this layer is likely to be reactive where it has been preserved. Activity has been specific to the southern half of the region.
A weak layer of surface hoar buried Jan 11 may be found 35-60 cm deep on open, sheltered slopes near and below treeline. Although likely unreactive to skiers, there is uncertainty in the distribution and sensitivity of this persistent slab problem across the region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":224,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be found 40-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be found 40-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be found 40-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 may be found 40-60 cm deep on open, sheltered slopes near and below treeline. There is uncertainty in the distribution and sensitivity of this persistent slab problem across the region.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":186,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar is buried 60-100cm on sheltered slopes near and below treeline. Activity appears to be slowing down on this layer, though it remains reactive to human triggers in specific areas.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and wind will likely add cohesion and load to these weak layers resulting in a reactive persistent slab problem.
New snow is stressing a widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it. This layer is roughly 60-100 cm deep and is expected to produce large avalanches for longer than what is typical after a storm on the South Coast.
A weak layer of surface hoar buried Jan 11 may be found 35-60 cm deep on open, sheltered slopes near and below treeline. Although likely unreactive to skiers, there is uncertainty in the distribution and sensitivity of this persistent slab problem across the region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":224,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A deeper weak layer of surface hoar that was buried in early January may become reactive as loading from snow and wind continues.
A deeper weak layer of surface hoar that was buried in early January may become reactive as loading from snow and wind continues.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A weak layer of surface hoar from mid-January was buried on open, sheltered slopes near and below treeline. I'm uncertain whether it will become active, but with new snow accumulating over the next several days it could be tested.
30-60 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
20-40 cm of new storm snow has slowly accumulated over the past few days. Changing wind directions may deposit deeper and stiffer slabs on multiple aspects. I suspect that anywhere the new snow feels stiff and more cohesive the slab may be more reactive, especially where it sits above a buried weak layer. Loose-dry avalanches may be seen from steeper slopes where there is little cohesion in the recent storm snow.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3v8h","text":"Cornices are large and fragile and don't respond well to rapid change- like new load from snow, rapid warming or rapid cooling. They deserve respect and a wide berth from above and below.
30-60 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind may create enough cohesion and load to these weak layers resulting in a reactive persistent slab problem just waiting for a skier or rider to trigger.
30-60 cm sits above a persistent weak layer that consists of surface hoar, facets, and/ or a crust. As the new snow becomes more consolidated, the likelihood of avalanches may increase.
A deeper weak layer of surface hoar that was buried in early January may become reactive as loading from snow and wind continues.
A cohesive slab 30-45 cm thick now sits above a buried weak layer of surface hoar and facets. These slabs have been very reactive to human triggers showing wide propagations in moderate to low angle terrain. They have been catching people by surprise, so pay attention to signs of instability and stay clear of terrain traps below.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
A widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it is now down about 125-175 cm. This layer is expected to produce large avalanches for longer than what is typical after a storm on the South Coast.
New snow loads have potential to awaken deeply buried weak layers.
New snow loads have potential to awaken deeply buried weak layers.
40-80 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
A weak layer of surface hoar is buried 80-130 cm deep on sheltered slopes near and below treeline. This layer continues to be reactive to human triggers.
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consists of a melt-freeze crust in some areas, surface hoar in sheltered areas, and facets in some areas. This layer has been the most reactive at treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":207,"length":83,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":90,"length":83,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
A weak layer of surface hoar is buried 50-80cm on sheltered slopes near and below treeline. Activity appears to be slowing on this layer, though it may be possible to trigger in isolated areas.
A weak layer of surface hoar is buried 50-80cm on sheltered slopes near and below treeline. Activity appears to be slowing on this layer, though it may be possible to trigger in isolated areas.
30-60 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
A widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it is now down about 80-150 cm. This layer is expected to produce large avalanches for longer than what is typical after a storm on the South Coast.
Touchy storm slabs have recently overloaded a weak layer of surface hoar buried late January. Human triggering of this layer will remain likely where it is well preserved. The most likely places being large, open, convex slopes at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consist of a melt-freeze crust in some areas, surface hoar in sheltered areas, and facets in some areas as well.
A cohesive slab 30-45 cm thick now sits above a buried weak layer of surface hoar and surface facets. These slabs have been very reactive to human triggers showing wide propagations in moderate to low angle terrain. They have been catching people by surprise, so pay attention to signs of instability and stay clear of terrain traps like creeks, cliffs, and depressions below you.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"agiru","text":"
Touchy storm slabs have recently overloaded a weak layer of surface hoar buried late January. Human triggering of this layer will remain likely where it is well preserved. The most likely places being large, open, convex slopes at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type
Touchy storm slabs have recently overloaded a weak layer of surface hoar buried late January. Human triggering of this layer will remain likely where it is well preserved. The most likely places being large, open, convex slopes at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type
20-40 cm sits above a weak layer that consists of surface hoar, facets, and/ or a crust. As the new snow becomes more cohesive and gains slab properties, the likelihood of avalanches may increase.
A weak layer of surface hoar is buried 80-130 cm deep on sheltered slopes near and below treeline. This layer is likely to be reactive to human triggers in specific areas.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
20-40 cm of new storm snow has slowly accumulated over the past few days. Changing wind directions will likely form reactive slabs on multiple aspects. Avalanches will be most likely in wind loaded areas and where the snow feels stiff or slabby.
Despite decreasing avalanche danger, there remains a lingering possibility to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
Storm slabs may be reactive especially in areas that received higher snowfall amounts.
30-80 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
30-80 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
30-60 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
Storm slabs may continue to be reactive, especially in wind loaded areas at higher elevations.
A widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it is now down about 80-150 cm. This layer may still produce large avalanches in areas that have not already avalanched.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind will likely add cohesion and load to these weak layers resulting in a reactive persistent slab problem.
Touchy storm slabs have recently overloaded a weak layer of surface hoar buried late January. Human triggering of this layer will remain likely where it is well preserved. The most likely places being large, open, convex slopes at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type
Touchy storm slabs have recently overloaded a weak layer of surface hoar buried late January. Human triggering of this layer will remain likely where it is well preserved. The most likely places being large, open, convex slopes at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type
Touchy storm slabs have recently overloaded a weak layer of surface hoar buried late January. Human triggering of this layer will remain likely where it is well preserved. The most likely places being large, open, convex slopes at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. Wind slabs may also cause step down avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
Up to 30 cm of new snow fell by Wednesday morning. Storm slabs may continue to be reactive on Friday, especially in localized areas that received higher snowfall amounts. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4ivv0","text":"Loose dry avalanches may occur from steep terrain features.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
A widespread weak layer consisting of a crust, with facets and/or surface hoar overtop is now down about 80-150 cm. This layer may still produce large avalanches in areas that have not already avalanched.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind will likely add cohesion and load to these weak layers resulting in a reactive persistent slab problem.
30-60 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind may create enough cohesion and load to these weak layers resulting in a reactive persistent slab problem just waiting for a skier or rider to trigger.
Touchy storm slabs have recently overloaded a weak layer of surface hoar buried late January. Human triggering of this layer will remain likely where it is well preserved. The most likely places being large, open, convex slopes at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type
Touchy storm slabs have recently overloaded a weak layer of surface hoar buried late January. Human triggering of this layer will remain likely where it is well preserved. The most likely places being large, open, convex slopes at treeline and below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type
A surface hoar layer buried near the end of January down 30-50 cm has recently become reactive in the south and central parts of the region. Additionally there is a another surface hoar layer down 40-70cm in the northern part of the region around Pine Pass.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
A weak layer of surface hoar is buried 40-70cm on sheltered slopes near and below treeline. This layer is likely to be reactive to human triggers in specific areas.
A weak layer of surface hoar is buried 60-100cm on sheltered slopes near and below treeline. Activity appears to be slowing down on this layer, though it remains reactive to human triggers in specific areas.
A weak layer of surface hoar is buried 50-80cm on sheltered slopes near and below treeline. Activity appears to be slowing down on this layer, though it remains reactive to human triggers in specific areas.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. Wind slabs may also cause step down avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
A persistent weak layer buried 70 to 100 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.  Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":190,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. Wind slabs may also cause step down avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
A weak layer of surface hoar is buried 50-80cm on sheltered slopes near and below treeline. Activity appears to be slowing on this layer, though it may be possible to trigger in isolated areas.
A weak layer of surface hoar is buried 40-70cm deep that may be possible to human trigger. This layer has shown reactivity on sheltered, open slopes at treeline and at upper below treeline elevations.
A weak layer of surface hoar is buried 80-130 cm deep on sheltered slopes near and below treeline. This layer continues to be reactive to human triggers.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A weak layer of surface hoar is buried 60-100cm deep that may be possible to human trigger. This layer has shown reactivity on sheltered, open slopes at treeline or in \"treeline-like\" features, such as cutblocks, below treeline.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
A weak layer of surface hoar is buried 50-80cm on sheltered slopes near and below treeline. Activity appears to be slowing on this layer, though it may be possible to trigger in isolated areas.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches in surface layers have greater potential to step down to deeper weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
40-80 cm of recent storm sits overtop a thick layer of weak, sugary facets. In the Monashees, this interface appears to be bonding well, while reactivity may persist longer in the Selkirks.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
60-100 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches in surface layers have greater potential to step down to deeper weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
Despite decreasing avalanche danger, it remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
40-80 cm of recent snow sits overtop a thick layer of weak, sugary facets. In the Monashees, this interface appears to be bonding well, while reactivity may persist longer in the Selkirks.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b364b","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed of surface hoar. In most areas, it has healed under the weight of the overlying snow but we are still seeing isolated activity in the far south of the region. These events have been skier triggered, around size 2 in steep, cliffy, unsupported terrain around treeline.
40-80 cm of snow sits above a buried weak interface that consists of surface hoar, facets and/or a crust. And more snow is in the forecast. As the load on this layer increases and the snow becomes more consolidated with warmer temperatures, the likelihood of avalanches may increase. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":202,"length":12,"key":0}],"data":{}},{"key":"b40a3","text":"Triggered wind and storm slabs may step down and failing cornices may trigger avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
30-70 cm of snow sits above a buried weak interface that consists of surface hoar, facets and/or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. Triggered wind slabs may step down to this layer and failing cornices may trigger avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":148,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
Rain falling on snow will rapidly weaken the surface and release wet loose avalanches.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches in surface layers have greater potential to step down to deeper weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
Sun and rising temperatures may produce a moist snowpack by the afternoon
A persistent weak layer buried 60 to 120 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.  Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":190,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
30-70 cm of snow sits above a buried weak interface that consists of surface hoar, facets and/or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. Triggered wind slabs may step down to this layer and failing cornices may trigger avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":148,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
A persistent weak layer buried 40 to 80 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":61,"length":23,"key":0},{"offset":189,"length":8,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/b05a04fa-1de4-4a3f-9ec1-014329d86d48"}},"1":{"type":
Sun and rising temperatures may produce a moist snowpack by the afternoon.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. In some areas, two layers of surface hoar are buried in close proximity, 30-70 cm deep. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. In some areas, two layers of surface hoar are buried in close proximity, 30-70 cm deep. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
Recent and ongoing snowfall has set up a scenario where it's possible for humans to trigger deep slabs.  These slabs are failing on a layer of surface hoar that developed in late January. The layer can now be found 80 to 160 cm deep across the region, being deepest in the west and shallowest in the east of the region. This layer has been the most sensitive right at treeline, but it may extend up into the alpine and down into openings below treeline. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":368,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region. Although we haven't received any reports of persistent slab activity in the most recent storm cycle, we don't believe that these limited results are conclusive enough to declare the problem gone.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
Snow and an overall warming trend may make a weak layer of surface hoar that developed late-January reactive to riders. Prior to this storm, the layer was found 15 to 60 cm deep across the region, being deepest in the south and shallowest in the north. This layer has been the most sensitive right at treeline, but it may extend up into the alpine, and be found in openings in the trees below treeline. The likelihood of triggering this layer is expected to increase once a cohesive slab develops above it.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":301,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
A persistent weak layer buried 40-70 cm deep remains sensitive to human triggering as evidenced Wednesday. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. In some areas, two layers of surface hoar are buried in close proximity, 30-70 cm deep. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":86,"length":19,"key":0},{"offset":149,"length":8,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/b05a04fa-1de4-4a3f-9ec1-014329d86d48"}},"1":{"type":
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
This problem is isolated to the Coquihalla area where 20-30 cm of new snow will form a widespread storm slab problem at all elevations. Natural avalanches will be likely on wind-loaded slopes.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
30-70 cm of snow sits above a buried weak interface that consists of surface hoar, facets and/or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase. Triggered wind slabs may step down to this layer and failing cornices may trigger avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":148,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
40-80 cm of snow sits above a buried weak interface that consists of surface hoar, facets and/or a crust. And more snow is in the forecast. As the load on this layer increases and the snow becomes more consolidated with warmer temperatures, the likelihood of avalanches may increase. Triggered wind and storm slabs may step down to this layer and failing cornices may trigger avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":202,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
Persistent slab avalanches are most likely in the northern Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts.
40-80 cm of recent storm snow sits on a layer of weak, sugary facets. At upper elevations, the recent snow has been blown into reactive slabs in lee features. Recent avalanches have propagated widely and surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Two more persistent weak layers are buried between 80-200 cm. These have not produced recent avalanches in the region that we know of, but have been responsible for several recent large avalanches in the neighboring North Rockies region, including two fatal avalanches in the past week.
Many large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, found around 50 to 80 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
40-80 cm of snow sits above a buried weak interface that consists of surface hoar, facets and/or a crust. And more snow is in the forecast. As the load on this layer increases and the snow becomes more consolidated with warmer temperatures, the likelihood of avalanches may increase. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":202,"length":12,"key":0}],"data":{}},{"key":"b40a3","text":"Triggered wind and storm slabs may step down and failing cornices may trigger avalanches on this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February. Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2hcb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"908ob","text":"We are still seeing isolated avalanche activity on these layers, and would be a little extra cautious as slopes warm up in the coming days.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
40-80 cm of recent storm snow sits overtop a thick layer of weak, sugary facets. At upper elevations, the recent snow has been blown into thick, reactive slabs in lee features. Due to the weak interface, storm slabs have shown very wide propagation across slopes in recent avalanches that have surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Another persistent weak layer is buried 80 to 120 cm deep. We don't yet have enough data to say for sure whether or not it continues to be a problem at this point. On the one hand, we have not yet heard any reports of recent large avalanches stepping down to this layer, which is encouraging, and the weight of the overlying snow is likely causing it to bond. On the other hand, this layer has been associated with a recent fatal avalanche in the neighboring North Rockies region, so we want to do our due diligence before we take it off our radar.
Ongoing heavy snowfall and an overall warming trend has setup a scenario where it's possible for humans to trigger deep slabs.  These slabs are failing on a layer of surface hoar that developed in late January. The layer can be found 50 to 110 cm deep across the region, being deepest in the south and shallowest in the north. This layer has been the most sensitive right at treeline, but it may extend up into the alpine, and be found in openings in the trees below treeline. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":375,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There are two main persistent weak layers of concern in the snowpack. The most recent is buried anywhere from 10-50 cm and was buried in mid-February. The next layer of concern consists of surface hoar, facets, and/or crusts, and is down 40-80 cm.
There are several persistent weak layers in the snowpack. The most recent is down 40-80 cm and was formed during the recent cold snap.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
Rain falling on snow will rapidly weaken the surface and release wet loose avalanches.
Snow and an overall warming trend may make a weak layer of surface hoar that developed late-January reactive to riders. Prior to this storm, the layer was found 15 to 60 cm deep across the region, being deepest in the south and shallowest in the north. This layer has been the most sensitive right at treeline, but it may extend up into the alpine, and be found in openings in the trees below treeline. The likelihood of triggering this layer is expected to increase once a cohesive slab develops above it.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":301,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region.
This layer continues to be easily triggered by skiers and riders. Small terrain features are producing small avalanche results, bigger features produce larger more dangerous avalanches. 40-70 cm of snow sits above a buried weak layer consisting of surface hoar, facets, and a crust (depending on elevation and aspect). ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7pdd5","text":"The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline and the treeline/alpine interface, but don't let your guard down elsewhere! These kinds of avalanches can happen in surprisingly mellow terrain and can be triggered from a distance away. This MIN report from Wednesday is a good illustration. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":327,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://w
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
40-80 cm of recent snow sits overtop a thick layer of weak, sugary facets. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b364b","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed of surface hoar. We are still seeing isolated activity on this layer.
A persistent slab has recently been reactive to rider and explosive triggering over the past few days. There is anywhere from  80 to 200 cm of snow above a mixed bag of old snow surfaces buried in mid-February. This weak layer will be deeper after Sunday's storm. The primary concern now is storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
40-80 cm of recent storm snow sits on a layer of weak, sugary facets. At upper elevations, the recent snow has been blown into reactive slabs in lee features. Recent avalanches have propagated widely and surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Two more persistent weak layers are buried between 80-200 cm. These have not produced recent avalanches in the region that we know of, but have been responsible for several recent large avalanches in the neighboring North Rockies region, including two fatal avalanches in the past week.
Around 100 cm of snow may not bond well to weak layers formed in late January and early February, including surface hoar and/or faceted grains. Shallower slabs have the potential of stepping down to these layers, forming very large avalanches.
A buried persistent weak layer still lingers 50-100 cm deep. Despite limited recent avalanche activity, the gradual load of new snow and mild temperatures could be adding stress to this layer. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Switching northwest and southwest wind will build fresh and reactive wind slabs. These may be easily triggered by the weight of a skier or rider. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a1oms","text":"Loose-dry avalanches may be easily triggered from steep terrain features.
There is anywhere from 40 to 80 cm of snow above a mixed bag of old snow surfaces including hard wind pressed snow, sugary facetted snow, feathery surface hoar in sheltered locations that were buried in mid-February. A lot of uncertainty surrounds this interface and it may be reach the threshold with additional snow and wind forecast. The primary concern now is wind or storm slab avalanches stepping down to this layer and skier or rider triggering which would result in a large, consequential avalanche.
West to southwest wind will build fresh and reactive wind slabs. These may be easily triggered by the weight of a skier or rider. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"giu9","text":"Loose-dry avalanches may be easily triggered from steep terrain features.
Switching northwest and southwest wind will build fresh and reactive wind slabs. These may be easily triggered by the weight of a skier or rider. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"giu9","text":"Loose-dry avalanches may be easily triggered from steep terrain features.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
10-20 cm of new snow fell on Thursday with the heavier amounts in the southern parts of the region. This was accompanied by strong wind. Switching northwest and southwest wind will build fresh and reactive wind slabs. As the natural avalanche activity tapers off, these slabs may continue to be primed for skier and rider triggering. The slabs could be 20 to 50 cm thick, depending on how much snow fell in your riding area. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"giu9","text":"Loose-dry avalanches may be easily triggered, especially if the sun pokes out.
Storm slabs may continue to be reactive, especially in wind-loaded areas.
Many large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, found around 70 to 100 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region.
20-30 cm of new snow fell by Thursday afternoon, forming new storm slabs. The wind is forecast to howl from the southwest to northwest, so wind slabs will rapidly build at treeline and alpine elevations as well. Including the weekend's snow, around 40 to 80 cm of recent storm snow will have built above the surfaces formed mid-February, potentially including weak surface hoar and/or faceted grains. These slabs will remain likely for riders to trigger on Thursday. Should 25 cm or more snow accumulate, another natural avalanche cycle may occur on Thursday.
40-80 cm of recent snow sits on a persistent weak layer of facets. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b364b","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. We are still seeing isolated activity on this layer.
There are several persistent weak layers in the snowpack. The most recent is down 40-80 cm and was formed during the recent cold snap.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
Loads of large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, now found around 50 to 100 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and they can easily be remotely triggered.
A persistent weak layer buried 70 to 100 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.  Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":190,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
Ongoing heavy snowfall and an overall warming trend has set up a scenario where it's possible for humans to trigger deep slabs.  These slabs are failing on a layer of surface hoar that developed in late January. The layer can be found 50 to 110 cm deep across the region, being deepest in the south and shallowest in the north. This layer has been the most sensitive right at treeline, but it may extend up into the alpine and down into openings below treeline. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":376,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region.
40-80 cm of recent snow sits on a persistent weak layer of facets. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b364b","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. We are still seeing isolated activity on this layer.
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5i64p","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. We are still seeing isolated activity on this layer.
The persistent slab has recently been reactive to rider and explosive triggering over the past few days. There is anywhere from  90 to 250 cm of snow above a mixed bag of old snow surfaces buried in mid-February.  The primary concern now is storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
A persistent weak layer buried 40 to 80 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":61,"length":23,"key":0},{"offset":189,"length":8,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/b05a04fa-1de4-4a3f-9ec1-014329d86d48"}},"1":{"type":
A persistent weak layer buried 60 to 120 cm deep has produced large avalanches this month. There is potential that it may experience a resurgence this weekend, with loading from new snow and storm slab avalanches. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":256,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
Heavy snowfall and an overall warming trend has likely made a weak layer of surface hoar that developed late-January reactive to riders. The layer can be found 40 to 90 cm deep across the region, being deepest in the south and shallowest in the north. This layer has been the most sensitive right at treeline, but it may extend up into the alpine, and be found in openings in the trees below treeline. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":300,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There are several persistent weak layers in the snowpack. The most recent is down 40-80 cm and was formed during the recent cold snap.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
A persistent weak layer buried 70 to 100 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.  Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":190,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A persistent weak layer buried 60 to 120 cm deep has produced large avalanches this month. There is potential that it may experience a resurgence this weekend, with loading from new snow and storm slab avalanche activity. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":264,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A persistent weak layer buried 40 to 80 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":61,"length":23,"key":0},{"offset":189,"length":8,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/b05a04fa-1de4-4a3f-9ec1-014329d86d48"}},"1":{"type":
A persistent weak layer buried 80 to 180 cm deep is being tested by significant new snow loads. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, to determine whether or not it continues to be a problem.
A persistent weak layer buried 70 to 120 cm deep is being tested by significant new snow loads. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, to determine whether or not it continues to be a problem.
A persistent weak layer buried 80 to 160 cm deep is being tested by significant new snow loads. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, to determine whether or not it continues to be a problem.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, which may offer insight as to whether or it continues to be a problem.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Loads of large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, now found around 50 to 100 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and they can easily be remotely triggered.
A persistent weak layer buried 80 to 180 cm deep is being tested by significant new snow loads. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, to determine whether or not it continues to be a problem.
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region. Although we haven't received any reports of persistent slab activity in the most recent storm cycle, we don't believe that these limited results are conclusive enough to declare the problem gone.
Heavy snowfall and an overall warming trend has likely made a weak layer of surface hoarthat developed late-January reactive to riders. The layer can be found 50 to 110 cm deep across the region, being deepest in the south and shallowest in the north. This layer has been the most sensitive right at treeline, but it may extend up into the alpine, and be found in openings in the trees below treeline. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":300,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Switching northwest and southwest wind will build fresh and reactive wind slabs. As the natural avalanche activity tapers off, these slabs may continue to be primed for skier and rider triggering. The slabs could be 20 to 50 cm thick, depending on how much snow fell in your riding area. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4bhb","text":"Loose-dry avalanches may be easily triggered, especially if the sun pokes out.
The persistent slab has been reactive to rider and explosive triggering over the past week. There is anywhere from  90 to 250 cm of snow above a mixed bag of old snow surfaces buried in mid-February.  The concern now is for storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
Storm slabs may continue to be reactive, especially in wind-loaded areas.
Recent and ongoing snowfall has set up a scenario where it's possible for humans to trigger deep slabs.  These slabs are failing on a layer of surface hoar that developed in late January. The layer can be found 80 to 160 cm deep across the region, being deepest in the west and shallowest in the east of the region. This layer has been the most sensitive right at treeline, but it may extend up into the alpine and down into openings below treeline. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":364,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There are a few layers of concern with the first major warm up happening this week.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b9fa7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"did3f","text":"1) A spotty layer of small surface hoar crystals is buried 20-40 cm deep around treeline. It won't take long for the warm temperatures to affect the snow this depth. We may see isolated avalanche activity on this layer in the early days of the warm up, but beyond that, the warming will likely help this layer heal.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d7tud","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6nbon","text":"2) A persistent weak layer buried 80-150 cm deep is composed of a combination of surface hoar, crusts and facets formed on the surface in late January. The problem seems to be most pronounced in thin snowpack areas on solar aspects. Recently we have seen large explosive loads and storm slab avalanches in motion produce avalanches on this layer. Rapid warming, strong sun or loose wet avalanches could serve as triggers for large, destructive avalanches this week.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9rvs9","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2676k","text":"3) Basal facets in shallow snowpack areas in the east of the region could be susceptible to shock from the warm temperatures this week. Extra caution should be exercised in these types of snowpacks. Avalanches on this layer are most likely human triggered from shallow rocky areas, which then propagate out to thicker spots, resulting in large avalanches. ","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":42,"length":25,"style":"B
Many large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, found around 50 to 80 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
A natural persistent slab size 3 was reported on Tuesday and has been reactive to rider and explosive triggering over the past week. There is anywhere from  90 to 250 cm of snow above a mixed bag of old snow surfaces buried in mid-February.  The concern now is for storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
The sun packs a punch this time of year. Periods of sunshine could trigger loose wet avalanches. Keep your head up and watch for obvious signs of warming like natural avalanches, snowballing, moist and sticky snow surfaces. Large, looming cornices exist along ridgelines. They may become weak and fail during periods of solar radiation and rising freezing levels. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d2r2i","text":"
There is anywhere from 40 to 80 cm of snow above a mixed bag of old snow surfaces including hard wind pressed snow, sugary facetted snow, feathery surface hoar in sheltered locations that were buried in mid-February. A lot of uncertainty surrounds this interface but it may reach threshold with additional snow and wind forecast. The primary concern now is wind or storm slab avalanches stepping down to this layer and skier or rider triggering which would result in a large, consequential avalanche.
There is anywhere from 40 to 80 cm of snow above a mixed bag of old snow surfaces including hard wind pressed snow, sugary facetted snow, feathery surface hoar in sheltered locations that were buried in mid-February. A lot of uncertainty surrounds this possible interface and in places where it exists, it may reach threshold with more snow in the forecast. The main concern being wind or storm slab avalanches possibly stepping down to this layer and skier or rider triggering which would result in a consequential avalanche. ","type":"unstyled","depth":0,"inlineStyl
The persistent slab has been reactive to rider and explosive triggering over the past few days. There is anywhere from  90 to 250 cm of snow above a mixed bag of old snow surfaces buried in mid-February.  The concern now is for storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
Warm air temperature and periods of sunshine will increase the likelihood of triggering wet loose avalanches, particularly on solar aspects. Resulting avalanches are expected to be small, so the most likely place to get into trouble is in steep, extreme terrain.
There are two main persistent weak layers of concern in the snowpack. The most recent is buried anywhere from 10-50 cm and was buried in mid-February. The next layer of concern consists of surface hoar, facets, and/or crusts, and is down 40-80 cm.
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5i64p","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. We are still seeing isolated activity on this layer.
Warming temperatures could temporarily increase the likelihood of large persistent slab avalanches. There are several potential layers of concern across the region that have produced some sporadic activity over the past weeks.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
There are a few layers of concern with the major warm up happening Thursday:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"did3f","text":"1) A spotty layer of small surface hoar crystals is buried 20-40 cm deep around treeline. It won't take long for the warm temperatures to affect the snow this depth. We may see isolated avalanche activity on this layer in the early days of the warm up, but beyond that, the warming will likely help this layer heal.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6nbon","text":"2) A persistent weak layer buried 80-150 cm deep is composed of a combination of surface hoar, crusts and facets formed on the surface in late January. The problem seems to be most pronounced in thin snowpack areas on solar aspects. Recently we have seen large explosive loads and storm slab avalanches in motion produce avalanches on this layer. Rapid warming, strong sun or loose wet avalanches could serve as triggers for large, destructive avalanches this week.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2676k","text":"3) Basal facets in shallow snowpack areas in the east of the region could be susceptible to shock from the warm temperatures this week. Extra caution should be exercised in these types of snowpacks. Avalanches on this layer are most likely human triggered from shallow rocky areas, which then propagate out to thicker spots, resulting in large avalanches. ","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":42,"length":25,"style":"B
There is anywhere from 90 to 250 cm of snow above a persistent weak layer buried in mid-February. The concern now is for storm slab avalanches stepping down to this deep layer, or human triggering which would result in a very large, high consequence avalanche.
Uncertainty about buried weak layers warrants conservative terrain choices. There are several persistent weak layers 50-150 cm below the surface that have produced large natural and human triggered avalanches in the last week of February and first week of March. It is too soon to write these layers off and they could still be reactive, especially on south-facing slopes when the sun is out.
Warming temperatures may have temporarily increased the likelihood of large persistent slab avalanches. There are two potential layers of concern buried 60-120 cm deep across the region that have produced some sporadic activity over the past weeks.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer may increase in the coming days as the forecast storm rapidly loads it.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer may be decreasing as the days progress, but the consequence of doing so would be high.
Warm temperatures and periods of strong sun will destabilize the upper snowpack in coming days. Start and finish early to reduce your exposure and be mindful of overhead terrain exposed to the sun. Larger wet loose avalanches or cornice falls could also trigger deeply buried weak layers.
Heavy rain at lower elevations may initiate loose wet avalanches. A saturated snow surface, pinwheeling, or point releases from rocks are good indicators of this instability.
Uncertainties about buried weak layers warrants conservative terrain choices. There are numerous persistent weak layers 50-150 cm below the surface that produced large natural and human triggered avalanches in the last week of February. We are uncertain whether time has helped these weaknesses heal or whether they are still reactive to human triggering.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer increases as the storm rapidly loads it.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6i6iu","text":"Failing cornices may trigger avalanches on this layer on the slopes below and create very large avalanches.
Uncertainties about buried weak layers warrants conservative terrain choices. There are numerous persistent weak layers 50-150 cm below the surface that produced large natural and human triggered avalanches in the last week of February. We are uncertain whether time has helped these weaknesses heal or whether they are still reactive to human triggering.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer may be decreasing as the days progress, but the consequence of doing so would be high.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
There is anywhere from 90 to 250 cm of snow above a persistent weak layer buried in mid-February. The concern now is for storm slab avalanches stepping down to this deep layer, or human triggering, which would result in very large, high consequence avalanches.
Below treeline where precipitation falls as rain, loose wet avalanches are possible.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces while travelling like moist or wet snow, snowballing or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity.
Naturally triggered wet loose avalanches are likely, especially on steep solar aspects in the alpine.
Uncertainties about buried weak layers warrants conservative terrain choices. There are several persistent weak layers 50-150 cm below the surface that have produced large natural and human triggered avalanches in the last week of February. We are uncertain whether time has helped these weaknesses heal or whether they are still reactive to human triggering.
Naturally triggered wet loose avalanches are likely, especially on steep solar aspects in the alpine.
Naturally triggered wet loose avalanches are likely, especially on steep solar aspects in the alpine.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer has decreased since recent loading over the past few days, but the consequence of doing so would be high.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Variability in snowfall amounts and freezing levels over the weekend has complicated the distribution of storm slab problems in the region. Dial back terrain choices anywhere you find more than 20 cm of new snow.
There is anywhere from 90 to 250 cm of snow above a persistent weak layer buried in mid-February. The concern now is mainly for storm slab avalanches stepping down to this deep layer, which would result in large, destructive avalanches.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
There are several persistent weak layers 50-150 cm. below the surface that have produced large natural and human triggered avalanches in the last week of February and first week of March. It may be too soon to write these layers off, as they could still be reactive to human triggers in isolated areas, especially on south-facing slopes when the sun is out.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces like moist or wet snow, snowballing or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cogp","text":"Large looming cornices may become weak with warming and solar radiation.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer may increase in the coming days as the forecast storm rapidly loads it.
Naturally triggered wet loose avalanches are possible, especially on steep solar aspects in the alpine.
Around 100 to 250 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer might stay elevated while the recent storm snow settles.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6i6iu","text":"Failing cornices may trigger avalanches on this layer on the slopes below and create very large avalanches.
Naturally triggered wet loose avalanches are possible, especially on steep solar aspects in the alpine.
Naturally triggered wet loose avalanches are possible, especially on steep solar aspects in the alpine.
Warm temperature and periods of sunshine will increase the likelihood of triggering wet loose avalanches, particularly on solar aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f83p2","text":"
Loose wet avalanches remain possible where rain continues to moisten the snowpack Wednesday.
Sunny breaks, warm temperatures and potential light rain may weaken the upper snowpack and form wet loose avalanches, especially if we don't get a good overnight re-freeze. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ehnm8","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Around 100 to 300 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer might stay elevated while the recent storm snow settles.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6i6iu","text":"Failing cornices may trigger avalanches on this layer on the slopes below and create very large avalanches.
Sunny breaks, warm temperatures and potential light rain may weaken the upper snowpack and form wet loose avalanches, especially if we don't get a good overnight re-freeze. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bvbs","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Rain at lower elevations may weaken surface snow and cause it to sluff in steep terrain
Rain at lower elevations may weaken surface snow and cause it to sluff in steep terrain.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces while traveling like moist or wet snow, snowballing, or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cl5un","text":"This may only become a problem when the sun is out.
Slopes that face the sun will become unstable as they warm during the day, especially if they are steep.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces like moist or wet snow, snowballing or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cei80","text":"
Wet loose avalanches will become less likely as freezing levels drop through the day Sunday.
unshine may trigger wet loose avalanches on steep solar aspects.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces like moist or wet snow, snowballing, or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cogp","text":"
Wet loose avalanches are possible at lower elevations during periods of rain.
Wet loose avalanches are likely at lower elevations where it is raining.
The freezing level is forecast to fluctuate between 1000 and 1400 m during the storm. As a result, expect to see the surface snow sluff in steep terrain at lower elevations where it will likely rain.
Wet loose avalanches are possible at lower elevations where rain is expected.
Rain soaked storm snow and moist new snow accumulations will be likely to shed from steep slopes naturally and with human triggers at lower elevations on Saturday.
The spring sun can pack a punch quickly and initiate loose wet avalanches. Watch for signs of instability like natural avalanche activity, wet or moist snow surfaces, and snowballing, especially on solar aspects.
oose dry avalanches in steep terrain should be on your radar as they can run a long way and entrain snow as they go. These can be especially dangerous around terrain traps like cliffs, trees, gullies and roads.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"69us3","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dm0ne","text":"You might also find loose moist avalanches on solar slopes and below treeline. Loose avalanches of both types can also trigger storm slabs.
Loose dry avalanches in steep terrain should be on your radar as they can run a long way and entrain snow as they go. These can be especially dangerous around terrain traps like cliffs, trees, gullies and roads.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fe8lg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dd39h","text":"You might also find loose moist avalanches on solar slopes. Loose avalanches of both types can also trigger slabs.
The spring sun combined with rising freezing levels can pack a punch quickly and initiate loose wet avalanches. Watch for signs of instability like natural avalanche activity, wet or moist snow surfaces, and snowballing, especially on solar aspects.
ry loose avalanches will be very likely on steep south facing slopes at upper elevations when the sun comes out in the afternoon.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"skvh","text":"Wet loose avalanches are possible below treeline.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
et loose avalanches may occur on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
Surface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Surface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
urface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
ry loose avalanches may be possible on steep slopes in the unconsolidated new snow.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Small wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
The snow surface will weaken over the course of the day as warm air and sunny skies prevail. The most likely areas to get into trouble are above terrain traps.
urface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Avoid exposing yourself to sunny slopes, especially in the afternoon.
urface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Avoid exposing yourself to sunny slopes, especially in the afternoon.
Surface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Avoid exposing yourself to sunny slopes, especially in the afternoon.
Surface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Avoid exposing yourself to sunny slopes, especially in the afternoon.
A rapidly warming snow surface may release loose wet avalanches. Pinwheeling is a good indicator of this type of instability.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":86,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
Above freezing temperatures and periods of heavy rain at lower elevations may trigger loose wet avalanches. Pinwheeling and rollerballs are good indicators of this type of instability. Avoid steep slopes with saturated snow, as wet loose avalanches can be surprisingly destructive due to their density.
Above freezing temperatures and periods of heavy rain may trigger loose wet avalanche at lower elevations. Pinwheeling and rollerballs are good indicators of this type of instability. Avoid steep slopes with saturated snow, as wet loose avalanches can be surprisingly destructive due to their density.
reezing levels are uncertain for Friday. If you see rain and warming at lower elevations you may see loose wet avalanches, especially from steep terrain features.
reezing levels are uncertain for Friday. If you see rain and warming at lower elevations you may see loose wet avalanches, especially from steep terrain features.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
Steep slopes and terrain features below treeline may see loose wet avalanche activity with the rising freezing levels and rain.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
Two crusts with weak faceted grains overtop are buried deep within the snowpack. The upper layer is 80 to 130 cm deep and the lower is near the ground. A few large avalanches have run naturally on these layers recently. The likelihood of triggering these layers is low but the consequence of doing is high.
Rain will soak the snowpack below the snow-rain line (forecast below 1800 m).  Natural and human triggered wet snow avalanches are likely on Tuesday. ","type":"unstyled","depth":0,"inlineSty
Rain will soak the snowpack below the snow-rain line (forecast below 1700 m).  Natural and human triggered wet snow avalanches are likely on Tuesday, especially from steeper terrain features.","type":"unstyled","depth":0,"inlineSty
Rain below treeline region may produce wet loose avalanches. Avoid steep slopes and terrain traps at low elevations where the snow is wet.
Two crusts with weak faceted grains overtop are buried deep within the snowpack. The upper layer is 80 to 130 cm deep and the lower is near the ground. A few large avalanches have run naturally on these layers recently. This problem is most prominent in thinner snowpack areas in the west of the region.
Sunshine and rising freezing levels may trigger loose wet avalanches, especially in steep terrain features and from solar aspects.
Freezing levels are expected to rise to 2000 m by the afternoon. If the warm temperatures break down the crust expect loose wet avalanches to occur, especially from steeper terrain features and solar aspects.
Freezing levels are expected to rise to 2300 m on the Coquihalla and 1900 m in the Duffy Lake area by the afternoon. If the warm temperatures break down the crust expect loose wet avalanches to occur, especially from steeper terrain features and solar aspects.
Rising freezing levels may produce a wet-loose hazard at lower elevations. Avoid steep slopes and terrain traps at low elevations where the snow is wet.
Two crusts with weak faceted grains overtop are buried deep within the snowpack. The upper layer is 80 to 130 cm deep and the lower is near the ground. A few large avalanches have run naturally on these layers recently. This problem is most prominent in thinner snowpack areas in the west of the region.
Rising freezing levels may produce a wet-loose hazard at lower elevations. Avoid steep slopes and terrain traps at low elevations where the snow is wet.
A persistent slab problem exists throughout the region. 30-80 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location. Avalanche activity has been limited, but we are wary of smaller wind or storm slab avalanches stepping down to this layer.","type":"unstyled","depth":0,"inlineSt
ain at lower elevations will warm and destabilize the snowpack.
Rising freezing levels to 1000 m and heavy precipitation in the form of rain will likely initiate a loose wet avalanche cycle at treeline and below.
Rain below the snow-rain line will rapidly destabilize the snowpack and promote wet loose avalanche activity.
Rain below the snow-rain line will rapidly destabilize the snowpack and promote wet loose avalanche activity.
Wet loose avalanches are likely when the sun pokes out and freezing levels rise. Be observant as you travel, and look for signs of warming and snowpack instability. Snowballing, moist snow, and the most obvious is natural avalanche activity. Back off slopes and adjust your trip plan when things are heating up.
Wet loose avalanches may occur at lower elevations depending on freezing levels. Obvious signs are natural avalanches, snowballing, moist and sticky snow surfaces.
Wet loose avalanches are likely as the sun pokes out and freezing levels rise. Be observant as you travel, and look for signs of warming and snowpack instability. Snowballing, moist snow, and the most obvious is natural avalanche activity. Back off slopes and adjust your trip plan when things are heating up.
Wet loose avalanches are likely when the sun pokes out and freezing levels rise. Be observant as you travel, and look for signs of warming and snowpack instability. Snowballing, moist snow, and the most obvious is natural avalanche activity. Back off slopes and adjust your trip plan when things are heating up.
Persistent slab avalanches are most likely in the northern Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Wet loose avalanches may occur at all elevations but be more predominant at treeline and below due to fluctuating freezing levels. Obvious signs are natural avalanches, snowballing, moist, and sticky snow surfaces. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7lan","text":"Large, looming cornices exist along ridgelines. They may become weak and fail during periods of warming on Thursday.
Persistent slab avalanches are most likely in the northern Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts.
Warming temperatures could temporarily increase the likelihood of large persistent slab avalanches. There are two potential layers of concern buried 60-120 cm deep across the region that have produced some sporadic activity over the past weeks.
Heavy rain at lower elevations may initiate loose wet avalanches. A saturated snow surface, pinwheeling, or point releases from rocks are good indicators of this instability.
Warming temperatures could temporarily increase the likelihood of large persistent slab avalanches. There are two potential layers of concern buried 60-120 cm deep across the region that have produced some sporadic activity over the past weeks.
Wet loose avalanches are likely as the sun pokes out and freezing levels rise. Be observant as you travel, and look for signs of warming and snowpack instability. Snowballing, moist snow, and the most obvious is natural avalanche activity. Back off slopes and adjust your trip plan when things are heating up.
Loose wet avalanches are most likely on slopes experiencing above freezing temperatures for the first time. A wet snow surface, pinwheeling, or point releases from rocks are good indicators that it is time to back off.
Wet loose avalanches are likely when the sun comes out and freezing levels rise. Watch for signs of warming and snowpack instability such as rolling snowballs, moist snow and natural avalanche activity.
Wet loose avalanches are likely as the sun comes out and freezing levels rise. Watch for signs of warming and snowpack instability such as rolling snowballs, moist snow, and natural avalanche activity.
Warming temperatures could temporarily increase the likelihood of large persistent slab avalanches. There are two potential layers of concern buried 60-120 cm deep across the region that have produced some sporadic activity over the past weeks.
This problem can be found in the north of the region in areas around Pine Pass where up to 35 cm of new snow fell accompanied by strong wind by Saturday morning. Wind slabs may be resting on a sun crust on solar aspects which could allow avalanches failing to run further and faster than you'd normally expect.
A wet loose avalanche problem may exist in the south of the region, where freezing levels are expected to remain above 2000 m overnight and into midday on Friday. ","type":"unstyled","depth":0,"inlineStyle
Wet loose avalanches may still be possible on Saturday. The cooling trend is expected to be slow, with above freezing temperatures persisting for much of the day. Watch for signs of warming and snowpack instability such as rolling snowballs, moist snow and natural avalanche activity.
Wet loose avalanches may still be possible on Saturday. The cooling trend is expected to be slow, with above freezing temperatures persisting for much of the day. Watch for signs of warming and snowpack instability such as rolling snowballs, moist snow and natural avalanche activity.
Solar input and warm temperatures may weaken the upper snowpack and form wet loose avalanches. These avalanches will most likely occur on steep solar slopes and around rock outcrops. The likelihood for wet loose avalanches will increase with daytime heating. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ej8s3","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Naturally triggered wet loose avalanches are likely, especially on steep solar aspects in the alpine.
Wet loose avalanches may release naturally on low elevation or steep sun-exposed slopes. A wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off.
Wet loose avalanches may release naturally on low elevation or steep sun-exposed slopes. A wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off.
Wet loose avalanches may release naturally on low elevation or steep sun-exposed slopes. A wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off.
Recent snowfall has blanketed the terrain with a widespread storm slab problem. Monitor for the reactivity of the new snow and old snow interfaces and for density changes within the new snow where you travel.
Solar input and warm temperatures may weaken the upper snowpack and form wet loose avalanches. These avalanches will most likely occur on steep solar slopes and around rock outcrops. The likelihood for wet loose avalanches will increase with daytime heating. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ehnm8","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Solar input and warm temperatures may weaken the upper snowpack and form wet loose avalanches. These avalanches will most likely occur on steep solar slopes and around rock outcrops. The likelihood for wet loose avalanches will increase with daytime heating. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ehnm8","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Solar input and warm temperatures may weaken the upper snowpack and form wet loose avalanches. These avalanches will most likely occur on steep solar slopes and around rock outcrops. The likelihood for wet loose avalanches will increase with daytime heating. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ej8s3","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Naturally triggered wet loose avalanches are possible; especially on steep solar aspects in the alpine.
Persistent weak layers that were buried in January and February could reactivate during this relatively warm period. Assess for these layers and look for clues of instability.
This problem can be found in the north of the region in areas around Pine Pass where up to 35 cm of new snow fell as of Saturday morning.  This snow may be resting on a sun crust on solar aspects which will allow avalanches failing in the storm snow to run further and faster than you'd normally expect.
This problem can be found in the north of the region in areas around Pine Pass where up to 35 cm of new snow fell accompanied by strong wind by Saturday morning. Wind slabs may be resting on a sun crust on solar aspects which could allow avalanches failing to run further and faster than you'd normally expect.
Wet loose avalanches are possible below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fma9f","text":"Dry loose avalanches will be very likely on steep south facing slopes at upper elevations when the sun comes out in the afternoon.
Use caution on steep sun-exposed slopes during the heat of the day if sunny skies prevail, which is forecast for the north of the region (e.g., Duffey, Hurley). The problem is most likely a potential concern at higher elevations where recent snow has accumulated.
Wet loose avalanche activity is possible if sunny skies prevail. This will be the first time all the recent snow has seen a good warm-up so avoid sun-exposed slopes should you find wet, sticky snow.
Use caution on steep sun-exposed slopes during the heat of the day if sunny skies prevail. The problem is most likely a potential concern at higher elevations where recent snow has accumulated.
The likelihood of loose wet avalanches will decrease as freezing levels drop through the day Sunday,
Loose wet avalanches are possible below 1500 m, where precipitation falls as rain.
oose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
Small loose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature is above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
weak overnight refreeze coupled with light rain could maintain wet loose avalanche problems at lower elevations through Thursday. Back off from steep slopes where snow is wet and lacks cohesion.
et loose avalanches are possibly below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"do0ds","text":"Dry loose avalanches will be very likely on steep south facing slopes at upper elevations when the sun comes out in the afternoon.
Wet loose avalanches are possible below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"35ul5","text":"Dry loose avalanches will be very likely on steep south facing slopes at upper elevations when the sun comes out in the afternoon.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
et loose avalanches are possible on steep south facing slopes and at elevations where air temperatures rise above freezing.
Small loose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
Wet loose avalanches are possible on steep south facing slopes and at elevations where air temperatures rise above freezing.
oose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
oose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
The recent snow may moisten and form wet loose avalanches on sun-exposed slopes if clear skies prevail.
The recent snow may moisten and form wet loose avalanches on sun-exposed slopes if clear skies prevail.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
oose wet avalanches are possible at elevations where rain continues to wet the snowpack.
Wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
Small wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
The snow surface will begin to weaken as warm air and sunny skies prevail. Resulting avalanches are anticipated to be small, so the most likely features to get into trouble are above terrain traps.
Wet loose avalanches may be possible on steep slopes exposed to strong sun.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
et loose avalanches may be possible on steep slopes exposed to strong sun.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Small wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
Dry loose avalanches may be possible on steep slopes in the unconsolidated new snow.
The potential for strong sun and rising temperatures midday may produce wet loose avalanches in the recent snow.
xpect natural wet loose avalanches to occur on solar aspects if the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Expect natural wet loose avalanches to occur on solar aspects if the sun comes out.
xpect natural wet loose avalanches to occur on solar aspects when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Expect natural wet loose avalanches to occur on solar aspects when the sun comes out.
A prolonged period of warm air and sunny skies will start to warm the snowpack, increasing the likelihood of reactivating buried weak layers. It is uncertain if and when large slab avalanches may release, but the possibility remains during this warm period. The most likely areas for deeper releases include rocky and thin snowpack areas.
Rain at lower elevations will warm and destabilize the surface snow
In the past 3 days 40 cm of loose dry snow has fallen.  Expect this snow to move when traveling on steep slopes.  Be aware of other parties above and below you and manage your travel accordingly.
Recent storm snow is settling yet the potential for sluffing to catch a skier off guard remains our main concern. Caution skiing over terrain traps like cliffs and gullies in steep terrain where the consequences of a small stuff are magnified.
The Nov 6th crust should still be in the back of your mind. Recent avalanches on this layer combined with uncertain means of triggering make venturing out onto big open slopes a committing choice.
With an additional 10-15cm of very light snow, sluffing is a concern where the wind has had no effect. Caution skiing in steep terrain and over terrain traps where sluffs will gain mass into avalanches.
There has been 72cm of new snow over the last 5 days at treeline. Last nights storm sits over 30 cm very light snow. Conditions are likely to be &quot;heavy over light&quot; increasing the likelihood of skier triggering.
There has been 75cm of new snow over the last 6 days at treeline.  Conditions are likely to be &quot;heavy over light&quot; increasing the likelihood of skier triggering.
With an additional 10-15cm of very light snow, sluffing is a concern where the wind has had no effect. Caution skiing in steep terrain and over terrain traps where sluffs will gain mass into avalanches.
With an additional 10-15cm of very light snow, sluffing is possible where the wind has had no effect. Caution skiing in steep terrain and over terrain traps where sluffs will gain mass into avalanches.
With an additional 10-15cm of very light snow, sluffing is possible where the wind has had no effect. Caution skiing in steep terrain and over terrain traps where sluffs can gain mass and turn into larger avalanches.
A rain crust that went as high as 1950m now has 30 -50 cm on it. Cold temperatures have not helped the bond with the new snow. With the forecast warming, wind, and precip, a firmer slab will likely develop which could become reactive to skier traffic
Thursday's 10 cm and Sunday's 8cm of snow with little wind has buried the preexisting wind slabs. Winds have shifted from S to N yet remain in light range. Watch for reverse loading patterns from local terrain influences.
The strong mid-pack above this weakness is slowly loosing its strength. Shallow snow pack areas are potential trigger spots. Consequences would be severe if initiated.
Caution in steep terrain for failures within the recent storm snow.  The storm snow should start to settle out and bond over the next few days.
Thursday's 10 cm and Sunday's 8cm of snow with little wind has buried the preexisting wind slabs. Winds have shifted from S to N yet remain in light range. Watch for reverse loading patterns from local terrain influences.
The strong mid-pack above this weakness is slowly loosing its strength. Shallow snow pack areas are potential trigger spots. Consequences would be severe if initiated.
The new snow is bonding well but will settle slowly with the cooler temperatures.&nbsp; Watch for sluffing and soft slabs in steep terrain.
Thursday's 10 cm and Sunday's 8cm of snow with little wind has covered the widespread wind slab condition that remains following last week's wind event. Current winds remain light and little change is expected in the snowpack.
The once strong snowpack is starting to show signs of losing strength as faceting conditions dominate the weather picture.  Triggering avalanches is most likely to happen in thin snowpack areas. 
Some sluffing in steep terrain could knock a skier over.?  Ski tracks down Cheops West produced some sluffing in gullies, but stopped near the top of the track.
Small natural slab avalanches to size 1.5 are starting to pull out to ground on the basal facets in thin snowpack areas.&nbsp; Faceting continues to weaken the snowpack on thicker slopes. Triggering is most likely to happen in thin snowpack areas.
Surface sluffing remains likely in steep terrain.  Volumes may be greater today, due to a skiff of new snow over a layer of surface hoar, most notable at treeline.
On Wednesday, small natural slab avalanches to size 1.5 were observed on the basal facets in thin snowpack areas.  Triggering is most likely to happen along edges of shallow pockets and from thin spots like rocks or trees.
You will likely trigger fast moving sluffs in steep terrain today. Even small sluffs can turn into a greater hazard in steep terrain, especially to parties below you.
On Wednesday, small natural slab avalanches to size 1.5 were observed on the basal facets in thin snowpack areas. Triggering is most likely to happen along edges of shallow pockets and from thin spots like rocks or trees.
Sluffs and loose avalanches will be easily triggered in sufficiently steep terrain today, be careful exposing yourself over terrain traps like cliffs or gullies.
On Wednesday, small natural slab avalanches to size 1.5 were observed on the basal facets in thin snowpack areas. Triggering is most likely to happen along edges of shallow pockets and from thin spots like rocks or trees.
Sluffs and loose avalanches are still the main concern today in sufficiently steep terrain. They can be skier triggered or triggered naturally from solar radiation. Caution below rocky outcroppings on south and west aspects.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive.
The loose upper snow sluffs easily on steep slopes. So far, these have produced small (size 1) skier and naturally triggered loose avalanches. On large steep slopes, these may gain mass and become larger.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive.
The loose upper snow sluffs easily on very steep slopes. So far, these have been small (size 1) skier and solar triggered loose avalanches. On large steep slopes, particularly gully features, these may gain mass and become larger.
The loose upper snow sluffs easily on very steep slopes. So far, these have been small (size 1) skier and solar triggered loose avalanches. On large steep slopes, particularly gully features, these may gain mass and become larger.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive, particularly as temps increase.
The loose upper snow sluffs easily on very steep slopes. So far, these have been small (size 1) skier and solar triggered loose avalanches. On large steep slopes, particularly gully features, these may gain mass and become larger.
Loose snow avalanches are likely on steep thin slopes and in gulley features.  Although these avalanches are possible on all aspects, solar triggering is most likely.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive, particularly as temps increase.
The loose upper snow sluffs easily on very steep slopes. So far, these have been small (size 1) skier and solar triggered loose avalanches. On large steep slopes, particularly gully features, these may gain mass and become larger.
Loose snow avalanches are likely on steep thin slopes and in gulley features.  Loose snow avalanches are possible on all aspects, however, solar triggering is most likely.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive.&nbsp; This is especially a concern for ice climbers.
The loose upper snow sluffs easily on steep slopes. Riders are reporting these running fast and far. On large steep slopes, particularly gully features, these will gain mass and become larger.  Manage your travel accordingly.
Loose snow avalanches are likely on steep thin slopes and in gulley features. 
Watch for sloughing in very steep, shallow terrain where the snow has lost all cohesion due to facetting.
23cm of new snow sits over an old snow interface that is not likely to bond quickly. This new snow will add to the sluffing that has been observed over the past week when triggered.
Loose snow avalanches are possible in steep thin snowpack slopes and gully features as facetting process dominates. Solar triggering is most likely initiator but not solely responsible. They may  knock you off a climb or bury you in a terrain trap.
33 cm of new snow sits over variable weak layers such as surface hoar, sun crust or facets, depending on your aspect and elevation. These are ideal  layers for an avalanche to release on.
Loose snow avalanches are possible in steep thin snowpack slopes and gully features as facetting process dominates. Solar triggering is most likely initiator but not solely responsible. They may knock you off a climb or bury you in a terrain trap.
  Weak layers such as surface hoar, sun crust or facets, depending on your aspect and elevation, are now buried 40 to 60cm deep. These are in the range of skier triggering and wider propagation as the slab settles.
Up to 30 cm of storm snow is possible in the next 24 hrs.  We will likely see an avalanche cycle involving the storm snow on steep slopes.
Up to 65cm of storm snow lies on a weak interface of surface hoar and sun crust.  These layers are very reactive to skier triggering.  A widespread avalanche cycle occurred overnight, and avalanche control is planned for today.
30 cm of unconsolidated storm snow is sitting on 30-60 cm of weak sugary facets in most areas below tree line.  Numerous loose avalanches have been observed that have involved the entire snowpack. 
Up to 70 cm of storm snow lies on a weak interface of surface hoar and sun crust, burried on January 4.  Avalanche control yesterday produced many avalanches on this layer.  Storm snow will continue to be reactive to skier triggering
30 cm of storm low density snow sits over unconsolidated facets mainly at lower elevations. Avalanches of this nature pick up enough mass to be a concern.&nbsp;
Jan 5 Surface Hoar/ Suncrust layer is now buried 60 to 90 cm. Extra caution on sheltered North and East aspects. Dig down to identify this layer and avoid  steep or unsupported slopes where it is present. Triggering this layer would be serious.
Surface sluffing on slopes over 35 degrees. Manage this carefully within the group by not skiing above other skiers and avoiding terrain traps and gullies or confined terrain. This should decrease with settling over the next few days.
A persistent weak layer down 50 to 70cm is reactive to skier triggering.  Our observations suggest the most reactive locations are steep S/SW facing slopes and open glades. Strong south winds may have created harder wind slabs at and above treeline.
Up to 70 cm of loose storm snow is easily triggered by riders in steep terrain.  Watch for fast sluffing especially in steep open glades where a surface hoar layer makes for easy sliding. Manage your travel accordingly.
Winds have left the 30cm of storm snow from Wednesday relatively untouched &quot;so far&quot;. It remains low density which causes sluffing and picking up significant mass in some cases to be a concern especially if terrain traps are involved. 
A persistent weak layer down 50 to 70cm is reactive to skier triggering. Our observations suggest the most reactive locations are steep S/SW facing slopes and open glades. Strong south winds may have created harder wind slabs at and above treeline.
Up to 70 cm of loose storm snow is easily triggered by riders in steep terrain. Watch for fast sluffing especially in steep open glades where a surface hoar layer makes for easy sliding. Manage your travel accordingly.
Where the wind has not affected the snow, 30cm of unconsolidated storm snow is sluffing out of steep terrain. They can pick up enough mass to be a concern to skier and climbers particularly when terrain traps are involved.
A cohesive slab overlies a persistent weak layer. Variable distribution and composition makes this layer difficult to predict. Tests on this layer indicate it is skier triggerable and observations indicate it is most reactive on steep S'ly aspects.
Cold temperatures is keeping the surface snow loose, especially on slopes sheltered from the wind. On steep slopes, this surface snow will sluff. On steep confined features (ie gullies) they may gain mass.
Where wind has not affected the slope, 30cm of cold unconsolidated snow is sluffing out of steep terrain. They have been observed to pick up enough mass to be a concern to skier and climbers particularly when terrain traps are involved.
A cohesive slab overlies a persistent weak layer. Variable distribution and composition makes this layer difficult to predict. Tests on this layer indicate it is skier triggerable and observations indicate it is most reactive on steep S'ly aspects.
Where wind has not affected the slope, 30cm of cold unconsolidated snow is sluffing out of steep terrain.  Solar input and warming temps are expected to increase the frequency of these natural avalanches.
Jan 5 interface in sheltered locations where preserved surface hoar can be found down 50 to 90 cm. Dig down often to identify this layer and avoid steep or unsupported slopes where surface hoar is present. Triggering this layer would be serious.
Surface instabilities such as loose snow and new windslabs are stepping down to ground, which means a small  avalanche has the ability to become&nbsp; large very quickly.
Wind transported snow is triggering point releases, most commonly out of steep and rocky terrain.
Surface instabilities such as loose snow and new windslabs  may step down to ground, which means a small avalanche has the ability to become large very quickly.  This will occur more likely in shallow snowpack areas.
Wind and warming temperatures are triggering point releases, most commonly out of steep and rocky terrain.
Hard and soft slabs continue to build on a variety of aspects from moderate to strong winds.  Natural slab avalanches have initiated on the surface hoar layer and then stepped down to either the basal facets or the November rain crust.
Wind slabs and loose snow avalanches have triggered this weakness.  These avalanches have gained significant mass as a result. This situation will more likely occur in shallow snowpack areas.
Wind and warming temperatures are triggering point releases, most commonly out of steep and rocky terrain.
Wind slab avalanches primarily in the alpine, have triggered this weakness. These avalanches have gained significant mass as a result. This situation will more likely occur in shallow snowpack areas.
Wind slabs avalanches have triggered this weakness thus gaining significant mass. This situation will more likely occur in shallow snowpack areas. Less activity today due to cooler temperatures but expect some steep slopes remain primed. 
Initiating the surface slab can trigger this deeper weakness. This will more likely occur in shallow snowpack areas. Less activity last 2 days due to cooler temperatures but expect some steep slopes where human triggering remains possible. 
Initiating the surface wind slab can trigger this deeper weakness. This situation will more likely occur in shallow snowpack areas. Less activity since Friday due to cooler temperatures but expect human triggering remains possible on steep slopes.
The lower depths of the snowpack are slowly facetting and becoming weaker, especially in shallow areas. Choose the deeper snowpack areas for your travel.
The lower depths of the snowpack are slowly facetting and becoming weaker, especially in shallow areas. Choose the deeper snowpack areas for your travel.
30cm of new snow has created storm slabs. These can be triggered by riders especially in steep terrain. Watch for wind effected snow on north/northeast slopes in open areas at treeline and in the alpine. Snow will be sluffing in steep treed terrain.
45cm of new snow has created storm slabs. These can be triggered by riders especially in steep terrain. Watch for wind effected snow on north/northeast slopes in open areas at treeline and in the alpine. Snow will be sluffing in steep treed terrain.
45cm of new snow has created storm slabs. These can be triggered by riders especially in steep, unsupported terrain. Watch for wind effected snow on north/northeast aspects at treeline and in the alpine. Be cautious of sluffing in steep terrain.
Recent storm snow is settling into a more cohesive slab. Watch for wind effect on north/northeast aspects. Surface hoar below 1800m was observed in some drainages now buried down 40cm, this may become more reactive with settlement.
Storm snow continues to settle into a more cohesive slab. 50cm sits on a sun crust on steep south and west aspects and over surface hoar below 1800m. Wind effect on north and east aspects may exist.
Up to 10 cm of light snow overnight will sluff easily in sufficiently steep slopes. Caution over terrain traps like cliffs and gullies.
Skiers in steep terrain should expect sluffing: slow but gain mass fast. This can be more serious where the old snow surface is very hard and it is difficult to hold an edge. Avoid confined features, pull off to the side, and do not ski above others.
Storm snow continues to settle into a more cohesive slab. 50cm sits on a sun crust on steep south and west aspects and over surface hoar below 1800m. Wind effect may exist near ridge tops.
40 to 50cm of light storm snow will sluff easily in sufficiently steep slopes. Caution over terrain traps like cliffs and gullies.
Rising winds overnight and lots of deep soft snow available for wind transport will create storm/wind slabs at treeline and in the alpine. Be aware of soft slab formation in the lee of features at ridgelines. These soft slabs are running end fan. 
50 to 70cm of light storm snow will sluff easily in steep terrain. Use caution near terrain traps like cliffs and gullies.
Strong winds in the last 24hrs and lots of deep soft snow available for wind transport have created storm/wind slabs at treeline and in the alpine. Be aware of soft slab formation in the lee of features at ridgelines.
50 to 70cm of light storm snow will sluff easily in steep terrain. Use caution near terrain traps like cliffs and gullies.
Skier triggerable slabs exist throughout the park. Recent strong southerly winds have loaded northerly aspects. Avoid lee and cross-loaded terrain near ridges where the wind has deposited firm snow.  Watch for shooting cracks as a sign of soft slabs.
In Kootenay and Yoho there is a buried surface hoar and/or crust layer down about 50 cm. This layer may be triggered on steep terrain features where the wind may have stiffened up the overlying snow into a slab.
Skier triggerable slabs exist throughout the park. Recent strong southerly winds have loaded northerly aspects. Avoid lee and cross-loaded terrain near ridges where the wind has deposited firm snow. Watch for shooting cracks as a sign of soft slabs.
In Kootenay and Yoho there is a buried surface hoar and/or crust layer down about 50cm. Though little activity has been observed on this layer, it is still producing sudden planar results in tests and should be monitored.
2 layers, down ~40 and ~80cm, exist in isolated areas (see forecast details). They have been reactive to ski cutting on steep unsupported features in Rogers Pass, and in the surrounding region caused several human triggered size 2 avalanches.
Solar aspects are going get hit hard by the sun today. Natural avalanches are expected, particularly on steep slopes and around exposed rocks. It will also make skier triggering of the storm slab more likely. They may step down to a crust below.
Last weeks snow has settled into a slab. The layers of concern below vary by aspect, but are most likely to be triggered on steep southerly aspects where buried crusts exist. The slab is stubborn to trigger but large avalanches are possible.
Storm snow is easily triggered by skiers. It is still a soft slab in most places, but has the potential to propagate widely on a touchy layer of surface hoar.&nbsp; Below treeline, open glades may be very reactive.
Storm snow is easily triggered by skiers. It is still a soft slab in most places, but has the potential to propagate widely on a touchy layer of surface hoar.  Below treeline, open glades may be very reactive.
A touchy surface hoar layer is down 25-40cm. There have been human triggered avalanches on this layer daily. Avalanches are increasingly possible with new snow and rising winds today adding load, and mild temperatures making the slab more cohesive.
A touchy surface hoar layer is down 35-55cm. Human (even tree bomb) triggered avalanches have occurred daily. Avalanches are increasingly possible with new snow and rising winds today adding load, and mild temperatures making the slab more cohesive.
A touchy surface hoar layer is down ~50cm. Human (even tree bomb) triggered avalanches have occurred daily. Avalanches are increasingly possible with new snow load and mild temperatures making the slab more cohesive.
The Feb 12 PWL is becoming more reactive as it matures.&nbsp; Skier triggered and natural avalanches have been increasing on this layer, with RB scores of 2, whole block.&nbsp; It is most reactive on solar aspects between 17-1900m.
A &quot;persistent weak layer&quot; (Feb 12 SH) is now down 50-60 cm from the surface, and is sporadically reactive to skier triggering.  Wide propagations are possible, especially on sunny aspects where it sits on a sun crust, between 17-1900m.
A &quot;persistent weak layer&quot; (Feb 12 SH) is down 50-60 cm from the surface, and remains sporadically reactive to skier triggering.  Wide propagations are possible, especially on sunny aspects where it sits on a sun crust, between 17-1900m.
A weak layer is down 40-50cm. It is most likely to be skier-triggered around 17-1900m, avoid open slopes and convex rolls. On sunny aspects the weak layer can be touchy.  Natural avalanche activity will increase on this layer today with the new snow.   
With the potential of this new snow load and winds Friday evening, expect increase in activity until has had few days to stabilize. 
New snow has created touchy conditions.  Skiers could trigger avalanches today.  Use caution in steep terrain.  Watch for slab formation where wind has deposited firmer snow.  Cracking around skis is a clue slabby conditions are present.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> A weak layer is down 50-70cm. It is most likely to be skier-triggered around 17-1900m, avoid open slopes and convex rolls. On sunny aspects the weak layer can be touchy. See </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://avalancheinfo.net/Parks/Glacier/Images/2013-02-23%20Sz%202%20Sc.jpg" target="_blank"><span class="s_9255B882">image</span></a><span class="s_AA239A9B"> of skier-triggered avalanche yesterday on this layer at 1700m.
A buried surface hoar layer, down 40-50cm, reactive to skier triggering particularly where it sits on a crust on steep south aspects. The overlying slab is stiffening and will produce larger propagation avalanches when triggered.
More load over the surface hoar layer buried 40-55cm. This layer is reactive to rider triggering and remote triggering. The overlying slab will continue to produce avalanches with larger propagation and more consequence for the foreseeable future.
20cm of low density snow over the last 48hrs will produce fast sluffing is sufficiently steep terrain. With enough mass this may trigger the deeper instability.
Surface hoar layer buried 40-55cm. This layer is reactive to rider triggering and remote triggering. The overlying slab will continue to produce avalanches with larger propagation and more consequence for the foreseeable future.
Solar radiation from forecast sunny breaks may trigger loose avalanches. Caution below rocky outcroppings and watch the overhead cornice hazard. With enough mass these may trigger the deeper instability.
Surface hoar layer buried 40-55cm. This layer is reactive to rider triggering and remote triggering and has been seen to be most reactive where the surface hoar is sitting on a sun crust or firm layer in the snowpack (bed-surface).
Surface hoar layer buried 45-60cm. This layer is reactive to rider triggering and remote triggering and has been seen to be most reactive where the surface hoar is sitting on a sun crust or firm layer in the snowpack (bed-surface).
Rapid loading by snow and wind is overloading the snowpack. Expect widespread natural avalanche activity, with large avalanches running into valley bottoms. Avalanches may step down to deeper persistent weak layers.
A weak surface hoar layer is now down ~85cm. This layer has been triggered by humans; remotely from 40m away, and capable of wide propagations up to 150m. Rapid loading or other avalanches may trigger this layer and produce very large avalanches.
Loose wet avalanches or moist storm slabs in steep terrain are likely over the next 36hours.  Until things cool down travel in avalanche terrain is not recommended.  Things should improve quickly with the cool temperatures forecast for Sunday.
The heavy snow combined with strong Southwest winds will build slabs on lee aspects.&nbsp;  These will be easy to trigger and will have enough load to perhaps step down into&nbsp; deeper weak layers in the snowpack.
60cm of heavy storm snow is settling with mild temps. Rapid loading yesterday triggered widespread large avalanches. The snowpack needs time to adjust to the new load and will still be touchy to human triggering.
A weak surface hoar layer is now down ~1m. This layer has been triggered by humans; remotely from 40m away, with propagations up to 150m wide. Rapid loading and other avalanches triggered this layer yesterday producing very large avalanches.
The heavy snow combined with strong Southwest winds will build slabs on lee aspects.  More snow overnight will make these easy to trigger with  enough load to perhaps step down into deeper weak layers in the snowpack.
Below treeline and down into the valley bottoms the snow is moist and unstable. Loos wet avalanches and moist slabs are possible on all steep terrain
60cm of heavy storm snow is settling into a cohesive slab. Loading by wind and snowfall continues to trigger large avalanches. The snowpack needs time to adjust to the new load and will still be touchy to human triggering.
A weak surface hoar layer is now down ~1m. This layer has caused widespread avalanches: natural's up to size 4, and size 2.5 human triggered avalanches. In areas where it hasn't already avalanched it is very reactive, and has been remotely triggered.
The cold temps with the cold front should tighten in the lower elevation instabilities. Watch for overhead hazards and avoid large run-out zones.
On Saturday, the heavy snow combined with strong Southwest winds built slabs on lee aspects. The overnight snow came in with almost no winds and warm temperatures which should bond well to the earlier storm snow.
Over 80cm of snow has fallen since Friday. Weak interfaces within the storm slab exist. The snowpack needs time to adjust to the new load. It will still be touchy to human triggering, and may step down to surface hoar below.
A weak surface hoar layer is now down ~1m. This layer has caused widespread avalanches: natural's up to size 4, and size 2.5 human triggered avalanches. In areas where it hasn't already avalanched it is very reactive, and has been remotely triggered.
The storm snow instability will persist until it has had time to settle. Winds and/or warm afternoons will build slabs on lee aspects.
Over 80cm of snow has fallen since Friday. Weak interfaces within the storm slab exist. The snowpack needs time to adjust to the new load. It will still be touchy to human triggering, and may step down to surface hoar below.
A weak surface hoar layer is now down ~1m. This layer has caused widespread avalanches: natural's up to size 4, and size 2.5 human triggered avalanches. In areas where it has not already avalanched it remains touchy, and has been remotely triggered.
As the sun peaks out and warms up the day, loose avalanches with significant mass are occurring with increased frequency. They are initiating out of steep W or S facing high elevation rocks or gullies.
The storm slabs remain soft in nature as winds have yet to firm them up. Soft slab conditions do exist on gully sidewalls and some large alpine slopes as Monday's explosive control work demonstrated. Watch for wind building slabs with this snow.
The Feb 12 PWL continues to be a concern. During the last storm cycle several avalanches &quot;stepped&quot; down to this layer.  It will remain a problem for some time.
As the sun peaks out and warms up the day, loose avalanches with significant mass are occurring with increased frequency. They are initiating out of steep W or S facing high elevation rocks or gullies.
The storm slabs remain soft in nature as winds have yet to firm them up. Soft slab conditions do exist on gully sidewalls and some large alpine slopes as Monday's explosive control work demonstrated. Watch for wind building slabs with this snow.
The Feb 12 PWL continues to be a concern. During the last storm cycle several avalanches &quot;stepped&quot; down to this layer. It will remain a problem for some time.
The storm slabs remain soft in nature as winds have yet to firm them up. Soft slab conditions do exist on gully sidewalls and some large alpine slopes as Monday's explosive control work demonstrated. Watch for wind building slabs with this snow.
Solar radiation and daytime warming will start to melt the new snow. This will create moist or wet point release avalanches on steep solar aspects at lower elevation to treeline.
The new snow sluffs easily in steep terrain and will run fast and far over buried crusts. This will likely decrease over the next few days as it settles but in the meantime manage your group carefully especially in confined terrain.
The snow from the last two storms is forming a slab. Things are a bit touchier over crusts right now. Both heating and wind will encourage slab development over the next few days. Use caution in steep or unsupported terrain.
The Feb 12 PWL continues to be a concern. During the last storm cycle several avalanches &quot;stepped&quot; down to this layer. It will remain a problem for some time.
Clear skies, calm winds, and a stronger, March sun will likely create unstable conditions on steep, southern aspects. This will be more of a problem at lower elevations.
Solar radiation and warm daytime temperatures will start to melt the new snow and penetrate the snowpack. This will create moist or wet point release avalanches on steep solar aspects at lower elevation to treeline.
Soft slabs are beginning to build along alpine ridgelines with moderate SW winds.  Otherwise, the storm slabs remain soft in nature as winds have yet to firm them up. Soft slab conditions also exist on gully sidewalls and some large alpine slopes.
Strong sunshine will trigger loose avalanches and make skier triggering more likely on solar aspects today. Solar triggered avalanches may step down to deeper layers, triggering large slab avalanches.
The surface hoar/crust layer from February is becoming less reactive; a function of it now being 1-1.5m deep and having avalanched in many areas. It is most likely to be triggered on solar aspects or by heavy triggers, resulting in large avalanches.
Expect loose wet avalanches to occur with daytime heating.  Caution on or below any steep solar aspects as temperatures warm up during the day. 
The surface hoar/crust layer from February is becoming less reactive; a function of it now being 1-1.5m deep and having avalanched in many areas. It is most likely to be triggered on solar aspects or by heavy triggers, resulting in large avalanches.
The surface hoar/crust layer from February is most likely to be triggered on solar aspects from shallow areas or from large triggers such as cornice falls resulting in large avalanches.
With more snow the potential for loose dry avalanches in steep terrain will increase.  Manage your sluffs carefully especially in confined terrain.  With warming temperatures these may quickly turn into more serious storm slabs.
The surface hoar/crust layer from February is most likely to be triggered on solar aspects from shallow areas or from large triggers such as cornice falls resulting in large avalanches.
New storm slabs will be sitting on a variety of surfaces, from colder powder snow or sun crust at higher elevations depending on aspect, to rain crust 1800m and below. 
At higher elevations, expect all gully features and exposed terrain to slough with the increased winds and new snow.  Steep terrain below treeline may slough far and fast.
Warm temperatures at lower elevations will create moist point release avalanches from steep terrain.
A storm overnight has brought 25-30 cm of new snow with strong winds and rising temperatures. This has formed avalanche conditions.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
Dense, very touchy storm slabs developed overnight with the new snow and warm temperatures. More snow is forecasted for the next 24 hours.
Rain to 1900m has created unstable conditions below tree-line. Travel is not recommended.
Warm temperatures and rain at lower elevations are creating moist point release avalanches from steep terrain. Solar radiation will rapidly destabilize the snowpack in the valley bottom and near treeline.
A storm that started on Wednesday has brought 30-45cm of high density new snow with strong winds and rising temperatures. This has formed avalanche conditions.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
40-60cm storm slabs are poorly bonded to older surfaces. Touchy conditions at all elevations.
Rain to 1900m has created unstable conditions below tree-line. Travel is not recommended until the temperatures cool down.
Currently a cycle of loose wet avalanches is occurring at all elevations in steep terrain.  This should decrease as temperatures cool by Saturday and the snowpack tightens up.  Until things cool down travel in avalanche terrain is not recommended.
Quantities of loose snow plaster steep cliffy terrain which is often encountered in and around ice climbs. With sufficient volume there currently to produce sizable avalanches, and more on the way, you would do well to avoid this terrain.
A storm that started on Wednesday has brought  40-60cm of high density new snow with strong winds and rising temperatures. This has formed avalanche conditions.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
40-60cm storm slabs are poorly bonded to older surfaces. Touchy conditions at all elevations.
Rain to 1900m has created unstable conditions below tree-line. This will stabilize with cooling temp's, but one will need to be patient and wait for the cooling.
Quantities of loose snow plaster steep cliffy terrain which is often encountered in and around ice climbs. With sufficient volume there currently to produce sizable avalanches, and more on the way, you would do well to avoid this terrain.
Last weeks warm and wet storm rapidly deposited 50-60cm of heavy, moist snow at treeline. This was deposited on low density snow sitting on a crust and or surface hoar and is bonding poorly. At lower elevations, rain saturated the upper snow.
It will likely take a large trigger, like a cornice fall or another avalanche to trigger the surface hoar/crust layer from February down 1-1.5m. If triggered, however, the resulting avalanche would be very large and destructive.
Cooler temperatures will start to take some moisture out of the snow for Sunday, but will take a couple of clear nights to freeze.  Thin, steep, gullied terrain will be the most susceptible to triggering.
There will be 20-50 cm of unconsolidated storm snow on and above ice climbs.  This snow will be susceptible to solar, wind and human triggering forming loose snow avalanches.  Quantities will be large enough to knock climbers off their route. 
It will likely take a large trigger, like a cornice fall or another avalanche to trigger the surface hoar/crust layer from February down 1-1.5m. If triggered, however, the resulting avalanche would be very large and destructive.
There remains 20-50 cm of unconsolidated storm snow on and above local ice climbs.  This snow is susceptible to solar, wind and human triggering forming loose snow avalanches of significant mass.  Enough to knock climbers or skiers off their route. 
A buried rain crust is providing an ideal bed surface for new snow avalanches below 2000m. There's around 30cm overtop and was really reactive yesterday to rider triggering with wide propagation, running far and fast.
In shallower areas east of the divide deep slabs have been observed failing on the lower facetted snowpack
There remains unconsolidated storm snow on and above local ice climbs. It is is susceptible to solar, wind and human triggering forming loose snow avalanches of significant mass. Enough to knock climbers or skiers off their line.
Convective snow flurries with strong winds yesterday added load to the storm slab problem above treeline. Below 2000 meters, a buried rain crust is providing an ideal bed surface for new snow avalanches at lower elevations.
It will likely take a large trigger, like a cornice or another avalanche to trigger the surface hoar/crust layer from February 12, now down 1-1.5m. The resulting avalanche would be very large and destructive if triggered.
There remains allot of unconsolidated storm snow available. It is is susceptible to solar, wind and human triggering forming loose snow avalanches of significant mass. Enough to knock climbers or skiers off their line particularly when its moist..
Another 8-10cm of snow overnight has added load to last weeks storm interface.  More snow, moderate winds and warm temps today will add to this problem, especially on solar aspects where buried suncrusts are providing good failure planes.
It will likely take a large trigger, like a cornice or another avalanche to trigger the surface hoar/crust layer from February 12, now down 1-1.5m. The resulting avalanche would be very large and destructive if triggered.
In shallow snowpack areas, especially East of the divide, the storm snow and wind slabs overlie a weak faceted mid-pack.&nbsp; Avalanches triggered in this region may steep down to ground.
Multiple convective storms and frontal systems continue to add incremental load.  The reactivity of the storm slabs is variable.  We know that solar aspects are most reactive due to buried crusts, and north aspects received most load.
It will likely take a large trigger, like a cornice or another avalanche to trigger the  Feb 12 and March 11 PWL's, now down 1-1.5m. The resulting avalanche would be very large and destructive if triggered.
With the clear skies forecast on Sunday expect activity on solar aspects as things heat up. Most of this will likely be black body starts or minor surface sluffing but if the moisture penetrates to the well developed crusts this could produce more.
New snow is reactive to rider triggering.  Use caution in steep terrain and unsupported features.  Avalanches with large consequences may run on solar aspects. A sun crust is present down 30 cm.  Northerly aspects with wind loaded snow may be touchy.
Two weak layers are buried down 1-1.5m.  Though unlikely, a large trigger like a cornice or another avalanche may cause these weak layers to fail. 
Two weak layers are buried down 1-1.5m. Though unlikely, a large trigger like a cornice or another avalanche may cause these weak layers to fail.
It may take a while for temps to warm up today, but when they do loose avalanches are possible due to strong solar. This is especially likely on steep solar aspects and around cliff and rocky outcrops. Loose avalanches may trigger deeper slabs.
The March 13 90cm of snow has melded with the snowpack making for a deep persistent slab. North and South winds make it present on a variety of aspects overlying weak basal facets. Cornice failures can trigger this in a big way.
Slopes receiving direct sun become more reactive during the day with warming. This is especially likely on steep solar aspects where buried crusts exist. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
This continues to be the main concern with last week's avalanche activity showing deeper slabs that  were sliding full depth on weak facets and in windloaded gully features on  predominantly Northeast through to Southeast aspects. 
As the daytime temperatures rise we may see loose wet avalanches on steep solar aspects especially if dark objects like rocks and trees are present on the slopes.  Travel early on steep solar aspects and pay close attention to daytime temperatures.
Slopes receiving direct sun become more reactive during the day with warming. This is especially likely on steep solar aspects where buried crusts exist. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
This continues to be the main concern with last week's avalanche activity showing deeper slabs that were sliding full depth on weak facets and in windloaded gully features on predominantly Northeast through to Southeast aspects.
The sun is warming the rocks on steep rock cliffs and gully features on Southerly aspects. Loose snow avalanches are starting in these features at all elevations later in the day. Cloud cover will determine if this occurs during the day.
PWL's are becoming stubborn, but should not be discounted.  Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist, but northerly aspects are not immune.
The sun will be strong today.&nbsp; Avoid terrain traps where moist slides could pile up deeply.&nbsp; Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
Occurring in the afternoons,  activity has been mainly isolated to very steep slopes at treeline and below.  As freezing levels rise over the next few days, we should start to see more natural avalanches occurring in the alpine.
This continues to be the main concern with last week's avalanche activity showing deeper slabs that were sliding full depth on weak facets and in windloaded gully features on predominantly Northeast through to Southeast aspects.
The sun is warming the rocks on steep rock cliffs and gully features on Southerly aspects. Loose snow avalanches are starting in these features at all elevations later in the day. Cloud cover will determine if this occurs during the day.
PWL's are becoming stubborn, but should not be discounted.  Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist, but northerly aspects are not immune.
The sun will be strong today.  Avoid terrain traps where moist slides could pile up deeply.  Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
Occurring in the afternoons, activity has been mainly isolated to very steep slopes at treeline and below.  Higher freezing levels Friday may bring more activity in the alpine.
Without a good overnight freeze, this problem will wake up by early afternoon.
The sun will be strong today. Avoid terrain traps where moist slides could pile up deeply. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
Buried weak layers are stubborn to fail, but should not be discounted. Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist.
As the daytime temperatures rise we may see loose wet avalanches on steep solar aspects especially if dark objects like rocks and trees are present on the slopes. Travel early on steep solar aspects and pay close attention to daytime temperatures.
Occurring in the afternoons, activity has been mainly isolated to very steep slopes at tree-line and below. Higher freezing levels this weekend may bring more activity in the alpine.
Wet slides are beginning on steep rocky slopes by early afternoon as daytime heating and solar radiation breaks down the overnight melt/freeze crust.
The sun will be strong again today. Avoid terrain traps, especially below treeline, where moist slides could pile up deeply. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
Buried weak layers are stubborn to fail, but should not be discounted. Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist.
Occurring in the afternoons, activity has been mainly isolated to very steep southerly  slopes at tree-line and below. Higher freezing levels this weekend may bring more activity in the alpine.
Wet slides are beginning on steep rocky slopes by early afternoon as daytime heating and solar radiation breaks down the overnight melt/freeze crust.
Warm temps overnight didn't allow much of a freeze. The sun will quickly break down crusts, and solar triggered avalanches are expected. Get an early start and avoid terrain traps, especially below treeline, where moist slides could pile up deeply.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably, and release the entire snowpack to the ground. Several size 2.5 to 3 </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://avalancheinfo.net/Parks/Glacier/Images/20130331%20Mounds%20Glide%20Release%20sz%203.0.JPG" target="_blank"><span class="s_9255B882">glide crack avalanches</span></a><span class="s_AA239A9B"> occurred yesterday.
Wet slides are beginning on steep rocky slopes by early afternoon as daytime heating and solar radiation breaks down the overnight melt-freeze crust.
Today there were many more loose wet and wet slab avalanches as the freezing level rose and there was less overnight freeze. Timing is critical to travel while crusts are intact and remember what may be happening in the sun above you.
Warm temps overnight didn't allow much of a freeze. The sun will quickly break down crusts, and solar triggered avalanches are expected. Get an early start and avoid terrain traps, especially below treeline, where moist slides could pile up deeply.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably, and release the entire snowpack to the ground. Size 2.5 to 3 </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://avalancheinfo.net/Parks/Glacier/Images/20130331%20Mounds%20Glide%20Release%20sz%203.0.JPG" target="_blank"><span class="s_9255B882">glide crack avalanches</span></a><span class="s_AA239A9B"> have been occurring daily.
Both loose wet and wet slab avalanches have been observed on most solar aspects up to size three. Beware of sun exposed slopes after mid-day.
With no refreeze overnight at 2100m, it will not take long for direct solar radiation to trigger avalanches on sunny aspects.
Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably, and release the entire snowpack to the ground.
Over the past several days a spring time isothermal cycle has resulted in numerous loose wet snow avalanches up  to Class 3  on steep solar aspects in the afternoon.
  Over the past several days a spring time isothermal cycle has produced numerous wet slab avalanches up to Class 3  on solar aspects in the afternoon.
Cooling temperatures over the next 3 days will reduce magnitude, frequency and distribution of of these events. Pay close attention to the increasing air temperature and met freeze crust thickness. Once gone you should head for safe slopes.
With no refreeze overnight at 2000m, expect avalanche conditions where the snowpack is soft and isothermal.
Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably, and release the entire snowpack to the ground.
Depending upon the inputs of heat from rain or sun this activity can be expected everywhere. Travelers must carefully monitor surface conditions and be clear of slopes before crusts break. Use extra caution if there is moist snow over buried crusts.
Cooling temperatures over the next 3 days will reduce magnitude, frequency and distribution of these events. Pay close attention to the increasing air temperature and met freeze crust thickness. When crusts are gone you should head for safer slopes.
Loose snow avalanches can still be expected on solar aspects with day time heating. Minimal freeze overnight means crusts are not as strong and will break down sooner in the day.
Wet snow slab avalanches are still a concern with day time heating. Moist snow under the crusts means that any slide triggered has the potential to step down to ground. Large avalanches are still possible. See forecast details.
With only a gentle refreeze overnight, expect avalanche conditions when daytime heating melts the crust, and the snowpack becomes soft and isothermal. Avalanches that trigger on a shallow crust can dig deeper into the isothermal snow and get bigger.
Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably, and release the entire snowpack to the ground and can be triggered by smaller shallow avalanches.
Loose snow avalanches are still possible on solar aspects with day time heating. Monitor how well developed the crusts are in the morning and pay attention to how quickly the crusts are breaking down.
Wet snow slab avalanches are still a concern with day time heating. Moist snow under the crusts means that any slide triggered has the potential to step down to ground. Large avalanches are still possible. See forecast details.
Cooling temperatures have reduced the magnitude, frequency and distribution of these events. Pay close attention to the increasing air temperature and the thickness of the melt freeze crust. Rain events will increase the elevation range and aspect.
Rain and heavy wet new snow will cause avalanche triggering in the upper layers of the snow pack. Avalanches that trigger on a shallow crust can dig deeper into the isothermal snow and get bigger.
Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably, and release the entire snowpack to the ground and can be triggered by smaller shallow avalanches.
With little overnight freeze at lower elevations, watch for loose wet avalanches below treeline on all aspects, and solar aspects at treeline and above.
  This will be more prevalent at lower elevations due to lack of freeze, but if the sun pops out Saturday, there is the potential for deeper releases as the day warms up.  Cornices will act as an ideal trigger.
If sunny, pay close attention to the increasing air temperature and the thickness of the melt freeze crust. Rain events will increase the elevation, range and aspect of this hazard.
Natural avalanches are possible with the current spring conditions. Avalanches that trigger on a shallow crust can dig deeper into the isothermal snow and get bigger.
This seems less of a concern the next couple of days with cooler temperatures but still a potential problem at low elevations. Be attentive to the air temperature and the thickness of the melt freeze crust particularly as the day progresses.
Below treeline expect near isothermal conditions with little freeze.  At treeline and above, natural loose wet avalanches will occur if the sun comes out and the day heats up.
The highest likelihood for deep wet slabs is from daytime warming on solar aspects,  especially from thin areas where slabs overly facets or depth hoar. 
Natural avalanches are possible with the current spring conditions. Avalanches that trigger on a shallow crust can dig deeper into the isothermal snow and get bigger. Use caution in terrain with loose unconsolidated snow.
This is less of a concern with cooler temperatures but increases its probability if the sun comes out. New snow rests on a buried smooth temperature crust particularly on South aspects. The surface snow can quickly become wet and active with heat.
Below treeline expect near isothermal conditions with little freeze. At treeline and above, natural loose wet avalanches will occur if the sun comes out and the day heats up.
The highest likelihood for deep wet slabs is from daytime warming on solar aspects, or from periods of rain, especially from thin areas where slabs overly facets or depth hoar.
Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably and release the entire snowpack to the ground.
New snow (15cm) rests on a buried smooth temperature crust particularly on South aspects. The surface snow can quickly become wet and active with heat from the sun.
Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably and release the entire snowpack to the ground.
10-15 mm of rain on Wednesday will destabilize the melt freeze crust currently covering the isothermal snow below.&nbsp; Expect loose wet slides on steeper slopes and in gulley features.
Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with the warm temps. They can fail unpredictably and release the entire snowpack to the ground.
40 cm of heavy moist storm snow overnight with steady south winds has created slabs at and above treeline.  This layer will be touchy today, especially as temperatures warm up.
Glide cracks, gaping cracks in the snowpack, exist on many slopes and have been failing with warm temps. They can fail unpredictably and release the entire snowpack to the ground.  The  overnight storm snow may provide a trigger for deep releases
New, storm snow can be skier triggered.  Up to 70 cm of storm snow has created a slab on top of a crust.  Below treeline this snow is moist.  Treeline and above, south winds have loaded lee features.
More snow is expected today increasing the avalanche hazard. A new surface hoar layer is down around 20cm under this new snow. It has widespread distribution and will be easily triggered by riders under this new load.
4cm thick rain crust found below tree line and up to 2700ms. No new avalanches have been observed on this layer.
Winds are expected to increase today, expect soft slabs at higher elevations that will be easily triggered by riders as sits is over a surface hoar layer. Lower down sluffs can gain mass and have larger consequences than expected.
Our latest surface hoar/crust layer is down under 30 to 40cm of storm snow. Consequences of triggering will increase as the slab strengthens over time.
Only on very steep slopes will there still be any sluffing.
Very cold temperatures from the past few days have made the upper snowpack unconsolidated and riders should expect fast sluffing on steep slopes in areas that were not wind affected.
It would be possible to trigger an avalanche in open, unanchored lee terrain. Slabs will continue to develop through the week.
25cm of new snow sits over a newly buried surface hoar layer down low and wind slabs up high. Riders should&nbsp; expect sluffing in steep terrain that could reach down into deeper unconsolidated layers and gain mass.
The new, low density snow overlies a loose, facetted upper snowpack. Skiers and riders should expect fast sluffing in steeper terrain, which may gain mass if it entrains the underlying facets.
Surface snow has been seen to be sluffing fast and entraining the underlying loose facets. Heads-up in gullies and above cliffs.
Slabs are forming in over 40cm of storm snow.  Use caution in terrain over 30 degrees. Rider triggering is possible.  Fast sluffing is likely and will pick up large amounts of snow.  Avoid exposure to terrain traps.
Soft slabs are forming in over 50 cm of storm snow.  Use caution in terrain over 30 degrees. Small avalanches could trigger deeper instabilities.  Fast sluffing is likely and will pick up large amounts of snow.  Avoid exposure to terrain traps.
These slabs will be lurking in the areas that look appealing with the thin coverage: open areas on the lee of ridgelines and along the lee portions of lower elevation fan and gully features.
Over 50cm of storm snow has created soft slabs.  Use caution in terrain over 30 degrees.  Small avalanches could trigger deeper instabilities.
As the storm continues to dump snow, with strong winds and warm temps, the storm slab is becoming deeper and more cohesive. There are reactive layers within and at the base of the slab that are likely to be triggered by skiers.
A week of windy weather has stiffened the skiable terrain. Triggering may still be possible. Watch for these conditions in appealing looking open areas.
Associated with mid pack crusts we see a layer of sugary crystals underlying stiffer upper layers. Use more caution in thin areas as triggering&nbsp; may be more likely.
55-60cm of storm snow in the past week with mild temperatures have created ideal slab conditions.
This weeks storm deposited 80cm of snow under ideal slab forming conditions. This slab sits on a weaker surface that may be reactive to skiers and riders, and the slab is deep enough to produce large avalanches.
The recent snow has tightened up into a slab. It sits on various weak crystals, like facets or surface hoar, that may be triggered by skiers. If triggered, avalanches may step down to deeper surface hoar layers resulting in very large avalanches.
Loose snow can quickly pick up speed and mass in gullied terrain.
The recent snow has tightened into a slab. It sits on various weak crystals, like surface hoar and facets, that can be triggered by people. These avalanches may step down to deeper surface hoar layers, resulting in large avalanches.
There may be a number of windslabs on North and East slopes that have built during the wind events of the last week.
The crusts near the bottom of the snowpack have been weakening, especially on cooler North aspects.
A weak layer is buried down around 80 cm.&nbsp; If triggered, a large, high consequence avalanche will result. Carefully evaluate big terrain features by digging and testing adjacent, safe slopes.
A weak layer is buried down 60 to 90 cm. If triggered, a large high consequence avalanche will result. Carefully evaluate big terrain features by digging and testing adjacent, safe slopes.
Snow load has been steadily increasing over the last few days. With rising temperatures, wind and more snow on the way, riders should expect to see snow slabbing up and becoming more reactive as the day progresses.
2 weak layers exist in the snowpack, these are down between 70 and 110cm. They could become reactive with this additional snow load having very large consequences if triggered.
Storm snow amounts keep accumulating with another 12cm overnight. It will need some time for storm layers to bond.
2 weak layers exist in the snowpack, these are getting deeper as snow amounts increase. They are down between 70 and 120cm and will have devastating consequences if triggered.
Thin and soft slabs formed with recent snow and warm temperatures can be found almost everywhere. With time, the forecast West Winds will likely redistribute this snow to form wind slabs near ridgelines and in gully features.
Weak snow associated with crusts formed in Mid and early November can be found down about 70cm. This seems to be less significant on Southerly aspects. Triggering planar slopes from thin areas remains a possibility to consider.
40cm of recent storm snow is settling. Within this slab are layers of large, weak snowflakes that may be triggered by skiers/riders.
The interface between the December snow and the facetted November snow, down ~80cm is the biggest concern. Although this interface is becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
40cm of recent storm snow is settling. Within this slab are layers of large, weak snowflakes that may be triggered by skiers/riders or by rapid loading during the storm. If triggered, this slab may step down to deeper instabilities.
Persistent weak layers down ~80cm (facets), and down ~115cm (surface hoar) continue to be reactive in specific locations. Although these interfaces are becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
Alpine temps rose overnight to 0'C at 1900m, before dropping below freezing again. Recent storm snow will have become more cohesive. There are a few weak layers within this slab. Tests indicate that they may be triggered by light loads, like you.
Persistent weak layers down ~80cm (facets), and down ~115cm (surface hoar) continue to be reactive in specific locations. Although these interfaces are becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
Recent strong SW winds have built windslabs at ridgelines and gully features. Warm temperatures have likely helped strengthen these slabs but triggering is still a possibility.
Weak snow associated with crusts formed in Mid and early November can be found down about 70cm. This seems to be less significant on Southerly aspects. Triggering planar slopes from thin areas remains a possibility to consider.
60cm of storm snow is likely to be triggered by riders. Use caution in steep, unsupported terrain.
Weak layers are buried down 80 to 100 cm. In a shallow snowpack where the weak layer is well-preserved, a skier could fail these layers.
The recent storm snow has instabilities within it that will need a few days to heal.
The 2 buried weak layers down 70 to 110cm are still producing results in our snowpack tests. Caution around shallow snow pack areas where triggering these layers is most likely.
Mild temperatures today will make slab formation more likely.
2 buried weak layers down 70 to 110cm remain a concern for riders. Consequences would be large if triggered which is more likely from shallow snowpack areas.
Winds associated with this recent snowfall have been strong enough to create wind slabs at higher elevations and in exposed areas below tree line.
Another 25cm of new snow overnight. Snow loading has been steady for the past 5 days with instabilities in the upper snowpack.
The presence of buried surface hoar remains a concern for backcountry riders. The potential for a large avalanche on this layer still exists.
West winds have built wind slabs in lee areas and cross loaded terrain such as gully features. Triggering may be possible on steeper or unsupported features.
This layer of weak sugary snow is found in many areas&nbsp; about 30 to 40cm from the ground. Triggering&nbsp; of this&nbsp; layer is more of a concern in shallower snowpack areas.
An issue on the West side of the Divide where 40-70 cm has fallen in the past few days.&nbsp; Both slab and loose avalanches have been observed today and are expected to continue with forecasted wind.
Another 10cm in the last 24 hours continues to incrementally load the snowpack. Moderate winds have created soft slabs in exposed areas.
Winds associated with the recent snowfall have been strong enough to create slabs in the alpine and exposed areas at and below tree-line. These slabs are concealed by the incremental snowfall of the last few days.
The presence of a deep surface-hoar weakness remains a concern for backcountry travelers. It will likely take a large load to trigger it, like a cornice or someone who ate too many perogies over Christmas.
This is mainly a problem at treeline and below, West of the divide where 40-70cm of snow has fallen over the last six days. There has been less wind in these areas, and high humidity has promoted slab development over the facets.
Storm slabs will become an issue at the peak of the incoming system. Strong winds and warm temp's accompanying the new snow will develop slabs quickly in exposed lee features at all elevations.
Wind slabs are still reactive to rider triggering in the upper snowpack. Large planar or unsupported slopes should be treated with respect.
A deep persistent weakness lingers, down roughly 120cm. It will take a large trigger to initiate this layer, but if it starts to move, propagation would likely be wide and deep, creating a larger avalanche.
Hard surface slabs are found near ridge crests and in gully features. These are highly variable at the moment with suspect pockets in steep and unsupported terrain.
Weak faceted or sugary snow can be found almost everywhere 30 to 40 cm above the ground. Triggering in thin snowpack areas remains a concern. Some natural avalanche activity should be expected if snowfall amounts are significant Friday.
The incoming snow will cover a variety of firm surfaces including the windslabs described above, wind affected surfaces, and sun crusts on S aspects. West winds and mild temperatures are likely to encourage slab formation in specific areas.
This is mainly a problem in the main ranges where the 40-50 cm of storm snow is not yet bonded to the old snow. Shooting cracks and whumphing was observed at treeline west of the Divide as skiers attempted to access more open terrain.
Storm slabs have formed at all elevations, likely up to a metre thick in alpine and tree-line lee areas. It will take a bit of time for these to settle into the snowpack.
Older wind slabs buried on various weak layers linger below all the new snow. These slabs have the potential to fail with the new, heavy load.
The heavy trigger may have arrived with this latest dump. Large avalanches are occurring, and may be stepping-down to this deeper layer.
The 20-30 cm of new snow can be expected to slough with any wind that occurs over the next 24 hours. Ice climbers should especially watch for sloughing in steep gully features and terrain traps.
40 to 60 cm of storm snow has formed slabs. These deposits will be deeper in areas with wind loading. Natural avalanches are still possible, assess terrain continually while you travel.
40 to 60 cm of storm snow has formed slabs. These deposits will be deeper in areas with wind loading. Natural avalanches are still possible, assess terrain continually while you travel.
There is lots of new snow plastered to steep rock and ice terrain. With the expected warming trend (and solar effect) over the next week, expect this terrain to shed this snow.
Large, deep slabs are occurring naturally and from human triggers. The recent snow has tipped the scale and all avalanche terrain should is suspect. Numerous avalanches have been triggered from long distances away. Avoid avalanche terrain!
There is lots of new snow plastered to steep rock and ice terrain. With the expected warming trend (and solar effect) over the next week, expect this terrain to shed this snow.
The weak snowpack continues to dominate the entire region, and avalanches can be easily triggered in shallow areas at treeline and above. Keep your distance from avalanche starting zones, and work the terrain very carefully to manage your exposure.
Strong West winds made quick work of the 40 cm of snow that fell before the weekend. Thin, spotty wind slabs found behind exposed features well below treeline can be easily triggered by skiers. Expect these slabs to be more significant TL and above.
This weak layer of snow persists 30 to 40 cm above the ground. Triggering a wind slab could produce the large load necessary to wake this layer up. Use caution in thin areas particularly with steep, planar, or unsupported slopes.
There is lots of new snow plastered to steep rock and ice terrain. With the expected warming trend (and solar effect) this week, expect this terrain to shed this snow.
Strong winds with a continuation of new snow will keep building windslabs in open areas. These can be found well below treeline.
This weak layer of snow persists 30 to 40 cm above the ground. Triggering a wind slab could produce the large load necessary to wake this layer up. Use caution in thin areas particularly with steep, planar, or unsupported slopes.
A new storm slab is developing. The new snow is still loose and unconsolidated, but with mild temps and continued loading by new snow it will become more of a concern. Heads up if the snow starts to feel slabby. Watch for sluffing on steep slopes. 
60 to 70cm of storm snow has fallen over the past 3 days with strong southerly winds. Heavy density snowfall is rapidly loading a previous layer of low density snow causing storm slab formation.
20-40 cm of storm snow has fallen across the forecast region, creating unstable snow in the surface layers from both new snow and wind. Expect deep windslabs in leeward areas due to extensive wind loading.
Over 75 cm of heavy storm snow has fallen with moderate/strong southerly winds. This new snow is causing natural avalanches and is very touchy to human-triggering.
The current avalanche cycle is overloading the entire snowpack and many deep avalanches have been observed sliding on the ground. Fracture lines in some areas greater than 150cm deep. The situation is very touchy; avoid all avalanche terrain.
45 cm storm snow and extreme winds have created deep storm slabs that can easily be triggered by humans. Extreme winds on Monday night will only add to this problem.. Avoid all avalanche terrain until this cycle subsides.
55cm of storm snow has fallen in the past 48hrs and is being redistributed by moderate to strong SW winds significantly overloading the snowpack. Lee features will be creating dangerous conditions overhead and underfoot.
Forecasted new snow will continue to overload an already stressed snowpack.
Triggering any of the above problems have potential to initiate this layer and create large full path avalanches.
New overnight snow is exceptionally heavy with the mild temperatures we have. This snow is sitting over much lighter snow from earlier this week and the result is ideal slab conditions and weak layers for it to slide on.
Winds in the past 24hrs have been strong to extreme with gusts to 130km/h on Mt Macdonald.
The possibility of natural and skier triggered avalanches remains high. Stay out of avalanche terrain until things settle down. Look for protected skiing in the trees on moderate angled slopes with no exposure to alpine and tree line start zones.
The storm slab is 40-50cm thick in many places and if triggered, it is likely to step down into the basal facets resulting in very large avalanches. Avoid all avalanche terrain until this cycle subsides.
This layer is proving very susceptible to human triggering as evidenced by the two remotely triggered slides today. Extensive whumphing and cracking experienced particularly at treeline elevations.
70cm of storm snow has fallen in the past 72hrs and has been redistributed by moderate to strong SW winds onto sheltered slopes in the alpine and treeline.
A failure in this layer is likely to trigger the weak basal facet layer below.
Yesterdays blizzard deposited 35cm of heavy snow that is sitting over snow that is much lighter, including a buried surface hoar layer. This combination makes it more reactive to rider triggering until it has a chance to settle out.
Open terrain near ridge crests are likely spots to find recent wind slabs. Use your poles and probe to help detect signs of instability.
More likely areas where the slab could be triggered are in&nbsp; steep unsupported terrain.
In shallow snowpack areas there is a possibility that the deeper instabilities could be triggered. Our growing snowpack and milder temperatures are helping to reduce the chance that this layer could be triggered in most areas.
Open terrain near ridge crests are likely spots to find recent wind slabs. Use your poles and probe to help detect signs of instability.
More likely areas where the storm slab could be triggered are in steep unsupported terrain.
In shallow snowpack areas there is a possibility that the deeper instabilities could be triggered. Our growing snowpack and milder temperatures are helping to reduce the chance that this layer could be triggered in most areas.
Expect to see less natural activity concerning this layer, however, it is still ripe for human triggering. If triggered, expect large and destructive avalanches with fracture lines up to 200cm deep.
Warmer temperatures will contribute to overloading the weak basal facets leading to full depth avalanches in the valley bottoms. Be cautious of steep slopes along terrain traps such as creeks.
As the warmer temperatures stiffen up the snow surface, even a small avalanche could step down to the basal facet layer resulting in a full depth avalanche.
Strong winds have formed windslabs in open areas at all elevations. In many areas they have formed over lower density snow, which may be triggerable.
Over a meter of new snow, combined with high winds and rising temps, have created a storm slab. It is sitting over snow that is much lighter, including a buried surface hoar layer. This slab will need some time to settle and bond.
Depending on elevation, this layer is either bridged by a hard mid-pack at higher elevations and likely to be triggered from a shallow area. At the lower elevations there is minimal support in the snowpack and is easier to trigger.
Triggering this layer could potentially initiate deeper instabilities. 
Full depth avalanches have been seen daily on this layer. We expect another natural avalanche cycle on this layer on sunny aspects with the forecasted warm temperatures and sun.
Over a meter of new snow is about to get hit by lots of solar and above freezing temps right up to mountain top. Natural avalanches are expected from steep, solar aspects. In addition, the storm slab will likely be more reactive on sun exposed slopes
Strong winds have formed windslabs in open areas at all elevations. In many areas they formed over lower density snow, which may be triggerable. Be especially cautious in places where even small avalanches can have high consequences, ie over cliffs.
Full depth avalanches continue to be seen daily on this layer. We expect another natural avalanche cycle on this layer on sunny aspects with the forecasted temperatures and sun. Even a cornice release in the heat could trigger a large avalanche.
Basal weakness means that the potential for full depth avalanches still exists.&nbsp; Smaller avalanches have the potential to trigger deeper instabilities.
Wind slabs are still touchy at upper elevations.&nbsp; Extensive scouring and cross loading was apparent today during helicopter control efforts on upper targets in the alpine.&nbsp;
Natural avalanches are expected from solar aspects if the high, thin cloud breaks up. Over a metre of new snow may have trouble adjusting to intense sunshine and high freezing levels over the next 48hrs.
Strong winds formed windslabs at all elevations and on all aspects. These windslabs sit on a low density layer and can be triggered by light loads. Be cautious in areas where even a small avalanche can have large consequences, ie over cliffs.
Strong west winds have created windslabs on lee slopes below ridgelines. These slabs can be found well down from the ridgetop and into open areas due to the intensity of the wind. Warm temperatures will increase the likelihood of triggering.
Snowpack depth is highly variable. It might be hard to spot the shallow areas where triggering this deeply buried weak snow is more likely. Large loads such as falling cornices or surface avalanches also have the potential to wake up these slabs
Watch for daytime warming and areas receiving large amounts of sun. avalanches may run full path and affect valley bottoms and trails crossing avalanche runouts.
The basal facet layer is of great concern as it is&nbsp; the most significant weakness in this year's snowpack.  Use extra caution in areas that have not previously avalanched, especially on open treeline slopes.
Windslabs have been triggered on this interface buried in the snowpack as well as deeper on the basal facet layer.
Strong winds formed wind slabs is exposed terrain at all aspects.  These wind slabs sit on a low density layer.  This layer could possibly be human triggered.  Be cautious in areas where even a small avalanche can have large consequences.
Frequency of full depth avalanches on the basal depth hoar/crust is starting to slow down.  Any slope that hasn't avalanched should be treated with caution, as it will be very high consequence if you trigger this layer.
The basal facets are weaker below tree line as many whumphs noted. Where the snow is deeper at higher elevations, the mid-pack is bridging the weak basal facets; however, snowpack depth varies so much that its hard to inspire confidence in stability.
Wind slabs of variable thickness and hardness dot the landscape. Many windpressed and stripped features will be encountered once you leave the shelter of the trees. Triggering this could dig down to the basal facets increasing the consequence.
The frequency of full depth avalanches on the basal depth hoar/crust is slowing down, but any slope that has not avalanched should be treated with caution. It will be very high consequence if you trigger this layer.
The basal facets are weaker below tree line as many whumphs noted. Where the snow is deeper at higher elevations, the mid-pack bridges the weak basal facets; however, snowpack depth varies so much that its hard to inspire confidence in stability.
Wind slabs of variable thickness and hardness dot the landscape. Many windpressed and stripped features will be encountered once you leave the shelter of the trees. Triggering this could dig down to the basal facets increasing the consequence.
The basal facets are weaker below tree line. Where the snow is deeper at higher elevations, the mid-pack bridges the weak basal facets; however, snowpack depth varies so much that its hard to inspire confidence in stability.
Wind slabs of variable thickness and hardness dot the landscape. Many windpressed and stripped features will be encountered once you leave the shelter of the trees. Triggering this could dig down to the basal facets increasing the consequence.
Be conservative with your terrain selection and consider steep or unsupported planar slopes carefully. Assess the snowpack often: the variable nature of the snowpack makes it hard to avoid shallow areas where triggering may be more likely.
These old, hard slabs still deserve respect especially in steep or unsupported terrain. Remember that triggering these surface slabs may create enough load to pull out a larger deep persistent slab. Triggering may be easier in warmer periods.
The weak and unpredictable snowpack persists in the Lake Louise area and eastern side of the forecast region, where all steep terrain remains suspect. This problem is much less prominent west of the Divide, where the snowpack is deeper and stronger.
Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Thin areas and steep terrain that has not  yet avalanched should be avoided. Thicker moderate angled terrain  with low consequences would be a good choice.
Low likelihood, high consequence. This means the chance of triggering is decreasing, however, if you do, it will be a big slide.
Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Thin soft slabs now hide either hard windslab or suncrust. They may not be bonded well, and could be a concern in steep terrain where a slip/fall has a significant consequence (ie cliffs).
Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Thin areas will have the biggest potential for triggering the basal depth hoar/crust layer. Caution is advised in steep, planar features. Avalanches will be full depth with large consequences.
The snow from Wednesday is starting to build new windslabs. These will be touchy for the next few days until the begin to settle. Previous windslabs are also a concern underneath this new snow. These could be triggered from the many thin areas.
Be conservative with your terrain selection and assess steep or unsupported planar slopes carefully. The new snow may be hiding shallow areas where triggering may be more likely and with the variability in snowpack there are many thin areas.
Triggering of the basal depth hoar/crust will be most likely from thin snowpack areas. These are harder to trigger now, but if you hit the &quot;sweet spot&quot;, the avalanche will be full depth and large consequence.
Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Be aware of solar warming which could trigger a slide on this layer which in turn may step down and release the basal weakness.
A supportive slab over a shallow spot in the snowpack could provide the energy for a small avalanche to step down into this layer.
You are more likely to trigger this layer below treeline where the upper snowpack is more consistently shallow and weak. You still need to be cautious in shallow areas above treeline.
You are more likely to trigger this layer below treeline where the upper snowpack is more consistently shallow and weak. You still need to be cautious in shallow areas above treeline.
Be conservative with your terrain selection and assess steep or unsupported planer slopes carefully where the snowpack may be thin. In these areas it may be possible to trigger the weak faceted area created early in the winter.
You are more likely to trigger this layer below treeline where the upper snowpack is more consistently shallow and weak. You still need to be cautious in shallow areas above treeline.
Odds are you will not be able to trigger this layer from fat areas in the snowpack. It exists at all elevations and aspects and the variability in the snow pack is so widespread it does not inspire confidence anywhere in the terrain.
5cm of snow will bond poorly to the various surfaces; sun crust and surface hoar; it has buried. Expect sluffing in steep terrain. Be cautious in terrain like confined gullies, where snow can accumulate deeper, or exposed areas over cliffs.
30 cm above the ground, this weak snow is a serious concern. Travelers should carefully consider snowpack depth, terrain shape, and slope angle. Use your probe to confirm depths when you are uncertain.
The recent snow fails easily in steep terrain up to 25cm deep. Expect this to dissipate as the wind moves in.
5cm of snow will bond poorly to the various surfaces; sun crust and surface hoar; it has buried. Expect sluffing in steep terrain. Be cautious in terrain like confined gullies, where snow can accumulate deeper, or exposed areas over cliffs.
5 cm of snow is reactive to skier-triggering. Expect fast sluffing in steep terrain.
New snow over a variety of surfaces will sluff easily in steep terrain.
: Normal;font-weight: normal;font-size: 16px;color: #333333; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_A136FBD0">An increasingly well settled snowpack means triggering an avalanche on a deep persistent layer has become unlikely. However, large and destructive avalanches may be possible with a heavy load in steep, thin start zones.</span><span class="s_AA239
The 40 cm of snow sitting on the ground continues to loose strength. The mid-pack that is holding everything together varies greatly in depth. Use your probe to verify that you are traveling in fat areas and use extra caution if you are not.
As new snow falls and is redistributed by W winds, expect slabs to form quickly or to&nbsp; contribute to soft windslabs that already exist&nbsp; at Treeline and above. In recent days even very soft slabs have failed easily over weak, faceted surface layers.
In terrain over 40 degrees skiers may easily sluff the Surface Snow which will continue to gouge out a trough until it hits lower angled terrain. These events occur naturally in very steep terrain. Expect this to get worse with more snow.
This weak snow under the entire snowpack remains a concern especially in thin areas. As warming and loading occurs, avalanches described in the problems above could provide a large load triggering larger events on this layer.
35cm of new snow has fallen onto a surface that will not bond easily. Triggering avalanches will not be difficult due to the nature of the recently buried weak layers.
Large sluffs can be expected in steep terrain. They are likely to gain mass and move quickly. Take extra care above and below terrain traps.
Soft slabs are forming rapidly with the new snow over a very weak and widespread layer. These slabs can be triggered from a distance on steep slopes and require very conservative terrain selection and route finding.
With widespread avalanches occurring the potential for the weak snow at the bottom of the snowpack to be triggered as a large avalanche is elevated. Give big terrain a wide berth until things have a chance to settle.
50-60cm of storm snow overlies an old surface that will not bond well. Temperatures have increased and winds have picked up, creating stiffer slabs that are ripe to fail.
Large sluffs can be expected in steep terrain. They are likely to gain mass and move quickly. Take extra care above and below terrain traps.
Bridging above this layer makes it stubborn to initiate; however, it will be big when it goes. A sudden warming, large additional snowload, large triggers, or surface avalanches may tip the scale. Be aware of thin locations as likely trigger spots.
15cm of new snow with variable wind directions and speeds have translated to wind loaded pockets of storm slab potentially 45cm thick overlying weak surface facets. More snow Thurs-Fri will add to this condition. Loose avalanches are also possible.
The new snow now has enough cohesion in some locations to act as a soft slab on steeper features not affected by the wind.
The storm slab overlies a weak surface and is not bonding well. Many avalanches have already slid on this interface, but if a slope has not released, it should be considered a ticking time-bomb.
The low density fluff that sits in protected tree-line and below tree-line elevations is sluffing fast in steep terrain. Expect it to gain mass and accelerate as it moves downhill. Take care above and around terrain traps.
Touchy slabs are building and stiffening over a combination of facets, surface hoar, and sun crust on solar aspects. As the stiffness of the slabs increases, so too will the distance they propagate.
Wind and warm temperatures have created higher density snow over the weak faceted crystals in almost any open areas. Very easy triggering means that skiers should treat all significant slopes with respect. SE to SW slopes seem extra touchy
The slab of well settled snow that protects the weak snow at the base of snowpack is not very thick in many areas. As the storms continue to place stress on the snowpack, and with significant surface avalanches expected, larger events could occur.
The storm slab is just getting thicker and heavier on the underlying weak interface. Any large, open slope that has not slid should be treated with caution, as it awaits just that extra amount of load from a person.
Sluffing from steep terrain will gain mass and speed. Given the new amounts of snow, sluffing is a certainty, so use caution above terrain traps. Stop periodically and move to the side, allowing that freight-train of pow to pass you by.
Touchy slabs continue to build and stiffen over a combination of facets, surface hoar, and sun crust on solar aspects. Large propagations (upto 300 m) and several skier remote triggered avalanches to size 2&nbsp; were observed today in KNP.
This layer is still touchy. Avalanche control was producing results on this layer today on the Sunshine Road and 93S.
Recent slab formation overlies a persistent weak layer of surface hoar, facets and crusts found predominantly at treeline and below. This layer is going to become more reactive with the next pulse of snow which begins on Saturday night.
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations that are occurring.
Do not forget that there is weak snow under the entire snowpack. In shallow areas this faceted snow has continued to weaken and the slab above it that is holding the snowpack together has become stressed by recent loading.
A 100 cm storm slab sits on a weak layer.&nbsp; Skiers and riders will likely trigger this layer in avalanche terrain.&nbsp; Remote triggering is a concern, watch out for adjacent slopes.
Touchy slabs have been found primarily on East facing terrain below ridge crests between 2000 and 2400m.  These slabs are sitting on a persistent weak layer of crust and facets and are stiffening up, increasing the likelihood of wide propagations.
This layer is still touchy. Expect it to be most reactive on south aspects near tree-line. Typically, it will be about 40cm thick.
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations that are occurring.
Do not forget that there is weak snow under the entire snowpack. In shallow areas this faceted snow has continued to weaken and the slab above it that is holding the snowpack together has become stressed by recent loading.
20cm of additional load overnight totalling 1.2m over a weak layer which has been very reactive this past week. Riders have reported cracking, whoomphing and avalanches on this layer. This is in addition to any shallower storm snow instabilities.
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations that are occurring.
Do not forget that there is weak snow under the entire snowpack. In shallow areas this faceted snow has continued to weaken and the slab above it that is holding the snowpack together has become stressed by recent loading.
The recent storm snow is settling and bonding to itself. There is still a poor bond at the storm snow interface (facets and surface hoar) down about 30-40 cm.
As the slab over the weak layers down 100-140cm becomes more cohesive, it changes in how it reacts to a riders weight. The highly reactive stage may have passed but it is at a depth where triggering will be less frequent but much more dangerous.
The storm snow is starting to settle into a cohesive slab. As the slab stiffens, the weak layer will get harder to trigger, but the consequences will be greater. The nature and distribution of the weak layer means it will be with us for a while.
As the slab over the weak layers down 100-140cm becomes more cohesive, it changes in how it reacts to a riders weight. The highly reactive stage may have passed, but it is at a depth where triggering is less frequent but much more dangerous.
The persistent slab interface is a combination of crusts, facets, and surface hoar overlying a solid midpack bridging weak basal facets. It will be large if triggered. Caution on steep lee treeline and subalpine aspects with variable snow depths.
The recent storm snow is settling but a poor bond still exists on the storm snow interface. Natural activity has decreased but it is still possible for skiers to trigger this layer.
The storm slab, which is 100-140cm thick and overlies a weak interface, is becoming more cohesive. However, the bond to the underlying interface is not showing much improvement. Skier triggering of this layer will have high consequence.
This persistent weak layer consists of facets and surface hoar that were covered. It sits on a mixture of crusts and firm supportive snow. This seems to be of most concern at the Treeline and lower alpine elevations between 2000m and 2400m.
A poor bond still exists between the storm snow and the Feb 10 interface. This interface is reactive to skier triggering. (see avalanche details)
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations or remote triggering that has been seen.
Do not forget that there is weak snow under the entire snowpack. In shallow areas this faceted snow has continued to weaken and the slab above it that is holding the snowpack together has become stressed by recent loading to the point of failure.
This problem is becoming increasingly challenging. The clues of instability, like cracking and whumphing are tapering off, but tests and continued avalanches indicate that this thick slab is triggerable and will produce very large avalanches.
This persistent weak layer consists of facets and decomposing surface hoar under 30cm of surface snow. It sits on a mixture of crusts and firm snow. It is of most concern at treeline and subalpine zones between 2000-2400m.
Where ever the wind has buffed the surface into a slab should be carefully evaluated particularly ridgetop transitions. Pockets of slab have also been created by valley bottom winds and have been found in exposed locations at treeline and below.
There is still a poor bond between the storm snow and the Feb.10 layer of facets and surface hoar. This interface is still very susceptible to human triggering.
A strong slab overlies a very weak layer buried down 1-1.5m. The snowpack now demands your respect, if you trigger this layer a large, high consequence avalanche will result.&nbsp; Use caution in shallow snowpacks, where triggering is more likely.
The persistent slab overlies 2 main weaknesses that will not go away anytime soon. A decomposing surface hoar-surface facet layer 30cm down and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
Carefully evaluate ridgetop transitions where winds have buffed the surface into a slab. It rests on the suspect surface hoar-surface facet layer 30cm down. Valley bottom winds have created slab pockets in exposed locations below treeline.
The storm snow interface down 40-70 cm still producing easy to moderate results. Natural cycle is over but still possible for skiers to trigger this layer.
A strong slab overlies a very weak layer buried down 1-1.5m. The snowpack now demands your respect, if you trigger this layer a large, high consequence avalanche will result.&nbsp; Use caution in shallow snowpacks, where triggering is more likely.
Carefully evaluate ridgetop transitions where winds have buffed the surface into a slab. It rests on the suspect surface hoar-facet layer 30cm down. Valley bottom winds have created slab pockets in exposed locations below treeline.
The persistent slab is intermixed with 2 main weaknesses that will not go away anytime soon, the decomposing surface hoar-facet layer and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
The natural cycle is over but the Feb 10th interface down 30-70 cm is still producing easy to moderate results, with lots of whumphing and some skier triggered avalanches. Stick to moderate angled, well supported terrain until things improve.
Carefully evaluate ridgetop transitions where winds have buffed the surface into a slab. It rests on the suspect surface hoar-facet layer 30cm down. Valley bottom winds have created slab pockets in exposed locations below treeline.
The persistent slab is intermixed with 2 main weaknesses that will not go away anytime soon, the decomposing surface hoar-facet layer and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
&nbsp; These slabs have become a little less touchy but are now buried by an additional load (60cm over the past week). Limit your exposure to significant slopes. Do not get taken by surprise. Long propagations are still likely.
&nbsp; 60cm of new snow over the past week with transport tapering off the past 5 days. Loose dry concerns could step down to the weak faceted layer.
The natural cycle is over but the Feb 10th interface down 25-60 cm is still producing easy to moderate results, with lots of whumphing and some recent skier triggered avalanches. Stick to moderate angled, well supported terrain until things improve.
;font-weight: normal;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">The slab overtop the weak layers down 1-1.5m continues to settle and become more cohesive. This problem will take a while to heal and requires good terrain management. Be particularly weary of open unsupported slopes and convex rolls below tree line.
Snowpack tests on this layer today produced easy results. Despite the easy results no avalanche activity was noted. This is a layer to approach cautiously over the next few days.
Evaluate ridge top transitions where winds have buffed the surface into a slab. It rests on this suspect layer 30cm to 45cm down.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The 1-1.5m slab over the weak layers continues to settle and become more cohesive. This problem will take a while to heal and requires good terrain management. Be wary of open, unsupported slopes and convex rolls, particularly at tree-line and below.
The Feb.10 interface of weaker crystals is slow to gain strength. Slab properties above this layer are becoming stiffer, and human triggering is very possible. These seem to be the most touchy on solar aspects where there is a buried suncrust.
At higher elevations wind slabs will be more abundant and thicker, similarly in cross winded valleys existing glacial terrain. The Feb 10th weakness has recently been found down 20-70cm between 2,200m-2,400m, but is hard to trigger.
We have seen very few avalanches from this layer in the past 2 weeks. A strong midpack , when present, prevents triggering from all but the largest loads. Where the snowpack is shallow triggering will be considerably easier.
The 1-1.5m slab overlying the Feb 10th weak layer is slowly bonding to this interface, but is still reactive in tests. This problem requires good terrain management, such as avoiding large convexities and sticking to supported features.
Carefully evaluate ridge top transitions and start zones where the winds have pressed the surface into a slab. This slab rests above a persistent facet layer 30cm to 45cm down.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
Now 80 to 130 cm thick, these slabs threaten serious consequence. While the potential for triggering has dropped, do not get taken by surprise: long propagations and remote triggering may still be possible. Limit your exposure to significant slopes.
A weak, persistent layer is buried under a thick slab. This layer is becoming more difficult to trigger, but if triggered will propagate widely producing a very large avalanche. Choosing appropriate terrain is key in managing this problem.
Moderate north winds have begun to load and stiffen up the surface slabs in open areas. This slab rests above a persistent facet layer 30cm to 45cm down.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The Feb 10th layer continues to produce sudden collapse test results in many areas. The cold temperatures will tighten things up a little and begin to weaken the slab over this layer but it is still a concern in many of the areas in the park.
As this weak layer, buried down around 1 m, gains strength human triggered avalanches are still possible. Areas of concern are open, unsupported slopes, convex terrain and thin snowpack areas.
Moderate north winds have stiffen up the surface slabs in open areas. This slab rests above a persistent facet layer 30cm to 45cm down.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The Feb. 10th layer is still a prominent feature in the snowpack producing variable results. We are seeing less activity over the past few days, but is still a concern in many regions of the forecast area.
As this weak layer, buried down around 1 m, gains strength human triggered avalanches are still possible. Areas of concern are open, unsupported slopes, convex terrain and thin snowpack areas.
New snow is expected to come in steadily with south winds and may slowly overload this interface. Watch for a reverse loading pattern from the south to north aspects because of the shift in wind direction.
This layer is slowly gaining strength however test results continue to show that wide propagations are possible in some areas which would lead to severe consequences. Sudden collapse results and low scores in propagation saw tests are still common.
Expect fast sluffing in steep terrain today capable of gaining mass. Exercise good group management such that people aren't riding below or above one another
The sun crust/surface hoar layer down 1-1.5m is still producing hard sudden results in snowpack tests. This indicates that the layer is difficult to trigger but will propagate widely if it does.
These slabs became less sensitive with cold temperatures and increasing depth. Now as conditions change with rapid loading and warming, limit your exposure to significant slopes. Do not get taken by surprise. Long propagations may still be possible.
This layer is slowly gaining strength however test results continue to show that wide propagations are possible in some areas which would lead to severe consequences. Sudden collapse results and low scores in propagation saw tests are still common.
The low density snow from the past 2 days will sluff fast and gain mass in steep terrain. Practice good group management and avoid knocking your buddies, or yourself, over by your sluffs.
The suncrust/surface hoar layer down 1-1.4m is still producing hard, sudden results in snowpack tests. This indicates it is stubborn to trigger, but if initiated, it will propagate widely, producing large avalanches.
New low density storm snow is shedding from steep terrain in the alpine and may have enough mass to ruin your day.  Expect sluffing on steeper slopes at all elevations.
This layer is gaining strength but tests and whumphing still show there is potential for wide propagation in some areas.&nbsp; Any avalanche on this layer could lead to severe consequences.
Fast-moving sluffs triggered by riders continue to be reported. These sluffs have been gaining mass in steep terrain, and could easily bowl you or your buddies over.
Lingering deep (1-1.4m) in the snowpack, the surface hoar/facet/crust sandwich continues to produce hard, sudden results in tests. If a large enough trigger gets this layer to fail, avalanches will be very large.
Steep alpine faces are sluffing regularly as new snow accumulates.
Test results on the Feb 10 layer generally in the moderate range but still show lots of potential for good propagation if triggered. Recent storm snow may be enough to activate this layer (see avalanche details). Lots of uncertainly with this layer
A touchy slab lurks on the slopes, and were easily triggered by field teams and artillery control at all elevations. As it becomes more cohesive from snow-load and warming temp's, we expect this slab to propagate easily.
Plenty of new, loose snow is available for sluffing in steep terrain. Practice good terrain and group management, and avoid getting pile-driven into terrain traps by the snow you just skied.
The facet/crust &quot;sandwich&quot; is buried 120-150cm below the surface now. It is still producing hard, sudden results in tests, indicating that it can will propagate if a large enough trigger hits it. Avalanches digging into this layer will be large!
Little wind has accompanied the new snow of the past two days. Sluffing out of steep terrain may be of concern, particularly for ice climbers.
This problem has yet to materialize in full force, but with rising temperatures and forecast winds we expect this surface condition to become quite touchy over the weekend.&nbsp;
Test results on the Feb10 layer mainly in the moderate range with potential for wide propagations if triggered. The recent snow has been shown to overload this layer in the Kootenay,Sunshine, Yoho areas, and less so in the Louise region and Hwy. 93N.
Up to 55cm of new snow has arrived over the last week. Warm temperatures are helping it settle but it is siting on a variety of sun crust, old windslab or facets. Warm temps on Sun could provide a trigger for this layer.
These slabs became less sensitive with the increasing snowpack depth. As temperatures warm to ridgetop for Sun limit your exposure to significant slopes. Do not get taken by surprise. Long propagations may still be possible.
Warming temps through the storm created a punchy storm slab that is sitting on a variety of weak surfaces. Avalanche control proved that this slab is reactive and produced large avalanches. The slab may be more reactive in wind-exposed terrain. 
This last storm, and the forecast dump of snow this weekend, may wake a weak persistent layer up. This layer, buried ~1.5m deep, is still reactive in snowpack tests and if triggered will produce very large and destructive avalanches.
Sluffing out of steep terrain is a concern, particularly for ice climbers. Loose slides are overloading the snowpack in the alpine and have triggered slabs below.
Open areas at tree line and above are beginning to show signs of wind effect and slab development.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> This layer is especially touchy around Sunshine and in Kootenay on steep features at treeline and below. There have been several </span><a href="https://www.facebook.com/photo.php?fbid=635006586549334&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">skier triggered avalanches</span></a><span class="s_AA239A9B"> to size 2 in past 36 hours and </span><a href="https://www.facebook.com/photo.php?fbid=635006599882666&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">explosive triggered avalanches</span></a><span class="s_AA239A9B"> to size 3 today.
60 to 80 cm of warm/moist snow has formed a rider triggerable slab. Natural avalanches are expected this afternoon with rising temperatures and more snow load. Remote triggering is also a concern, watch out for adjacent slopes.
A deep weak layer buried at the end of January is down around 1.5 m. Although we have not observed any recent skier-triggering of this layer, artillery control triggered this layer on the west side of the park, releasing a size 3.5.
Recent storms with warm temps and West winds have created slabs and built cornices. Wet slabs are failing BTL and solar aspects, cornices and windslabs are failing at TL and above.
The weak February facet layer is now buried up to 170cm deep. Large loads such as cornices have triggered this layer where it is deep and it has failed with sluffing and heating where it is shallow. Long propagations are possible with this layer.
Solar heating will likely result in these events occurring to ridge tops Saturday. Warm temps as well as the rain expected Sunday will cause these events at low elevations. Be aware that these small events may act as the trigger for deeper slabs
Storm snow showing dangerous slab properties, use extra caution when entering steep open areas.
Wind slabs more prevalent in the Ice Fields area where moderate SW winds and mild temps have created touchy slab properties in all open areas.
Dense snow is overloading the Feb.10th interface and will continue through Sunday. 
We have seen the basal facets wake up at lower elevations in the Kootenay area. This may not be widespread, but will cause large avalanches if initiated.
80 to 100 cm of warm/moist snow has formed a rider triggerable slab. We are currently seeing natural avalanches in the storm snow, some running to end of runnouts. Minimize your exposure today by skiing in mature forest.
A deep weak layer buried at the end of January is down 1.8 to 2 m.&nbsp; Smaller avalanches could step down and trigger as large, high consequence avalanche on this layer.
Very little natural activity has been observed in the storm snow in the lower elevation bands. Loose wet slides will become the concern as the storm passes and the sun bakes the solar aspect.
The Feb 10th layer continues to be reactive in many areas especially at tree line. Avoid any steep terrain until this has a chance to bond.
With the cooling temperatures this will become less reactive to skier traffic. Large triggers such as cornice drops or large slab releases could still cause failures on the basal facets.
A sun crust down ~1m is well within the range of human triggering on south and west aspects. The February surface hoar/crust layer down ~1.5-2m which can reawaken with a heavy trigger such as a large cornice release.
This problem will start to become a regular occurrence as the intensity of the sun increases and valley bottom temperatures climb.
ont-weight: bold;font-size: 13px;color: #000000; } 
.s_9255B882 { font-family: 'Arial';font-style: Normal;font-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> The recent snow has overloaded this layer. Although natural activity is tapering, this layer remains </span><span class="s_2823317B">VERY</span><span class="s_AA239A9B"> touchy as seen by two very </span><a href="https://www.facebook.com/photo.php?fbid=636202979763028&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">close calls </span></a><span class="s_AA239A9B">today.
In thinner snowpack areas, many avalanches are initiating as a storm or persistent slab and are stepping down to this layer.
The storm slab will settle over the next few days, but is currently very touchy. Most avalanches are initiating on this layer and quickly stepping down to the deeper weak layers.
This problem will start to become a regular occurrence as the intensity of the sun increases and valley bottom temperatures climb.
Very warm temperatures and rain to 2300 meters on March 8 and 9 has settled the near surface instabilities with cooler night time temps. Thin wind slabs may be present in some aspects on this layer.
The weak facet layer is now buried by up to 170cm in treeline and alpine areas and below treeline is found down 50cm. Many avalanches fell over the weekend on this layer and it is a concern that may persist for some time. Triggering is possible!
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> Natural avalanche cycle is over but conditions are still very touchy and ripe for skier triggering. Any avalanche triggered has the potential to be very</span><a href="https://www.facebook.com/media/set/?set=a.636554726394520.1073741856.145133538869977&amp;type=1#!/photo.php?fbid=636554863061173&amp;set=a.636554726394520.1073741856.145133538869977&amp;type=3&amp;theater" target="_blank"><span class="s_9255B882"> large.</span></a><span class="s_AA239
Storm slab is still touchy and has potential to step down to deeper persistent layers.
Expect the avalanche danger on sheltered solar aspects to be suspect during the heat of the day.&nbsp;
Natural activity has slowed down on this layer, but we have seen large avalanches over the past few days with the new storm snow overloading the Feb.10th interface. In some cases we have seen this step down to the basal facets in thin snowpack areas.
Watch locally for daytime warming in steep, solar features.
Expect the avalanche danger on sheltered solar aspects to be suspect during the heat of the day.
In thinner snowpack areas, this layer is still touchy as shown by numerous large whumphs and sudden collapse results today. It is especially reactive on solar aspects where there is a buried sun crust and may be less reactive in deeper snowpacks
Lots of new snow, with wind, through the weekend will form a new storm slab. This slab will likely be most reactive where it overlies suncrust, but will also bury small surface hoar. If triggered, this slab may also step down deeper.
With freezing levels climbing during the daytime, precipitation at lower elevations will be wet snow or rain. Loose wet avalanches will be likely depending on the amount of snow and if rainfull is heavy wet slab avalanche will also be a concern.
The layer down 70-170 cm is still active as demonstrated Thur with avalanche control work up Akamina. Any slope not yet slid should be a concern. Windslabs, cornices, storm slabs or wet loose avalanches could step down and result in large avalanches.
This layer is still touchy in thin snowpack areas (especially where there is a buried sun crust), and large whumps and sudden collapse results have been found. With limited observations this layer now seems less reactive in deeper snowpack areas.
With the new snow, expect the Feb 10th layer of facets, surface hoar, and some buried sun crust to &quot;wake up&quot;, especially in thin and variable snowpack areas.&nbsp;
We've had a significant amount of snow overnight. Combined with the mild temperatures, the southerly winds which have started to pick up and the crust which it sits on, the new storm slab will be highly reactive to human triggering.
Overnight and continued rain below 1100m will weaken the upper snowpack. These conditions are dangerous in any steep terrain even if heavily forested. These avalanches will be slow moving but very heavy and difficult to manoeuvre out of.
As yesterdays avalanche indicates, the basal weaknesses are still susceptible to human triggering. Use caution in steep, shallow areas that have not previously avalanched.
Although the new storm slabs are unlikely to produce very large avalanches they are still quite touchy.
The 35cm of snow that fell in the last day has been observed to travel far and fast when it fails. Loose snow slides are likely with any solar affect particularly at lower elevations.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
65cm has fallen over the last 4 days with strong winds yesterday. On solar aspects this has buried a thick sun crust. Venturing out into larger terrain is not a good idea at this point as this new load will need some stabilization time.
The 35cm of snow that fell in the last day has been observed to travel far and fast when it fails. Loose snow slides are likely with any solar affect particularly at lower elevations.
The 30-40cm of snow from the last few days is sitting on crusts or moist snow that could provide a poor bond. Daytime heating could trigger these instabilities on south facing aspects but they may persist on cooler north aspects for a few days.
The chance of triggering the deep weak layers from early February are diminishing but these layers have not completely disappeared. Any slope that have not slid should be suspect for possible large destructive avalanches.
The Feb 10th layer continues to produce whumphs, natural and remote avalanches and skier triggered avalanches. It is especially sensitive in thinner or cross loaded snowpack areas and places with a buried sun crust.
We are seeing less activity with this problem as the days go by. It is still touchy and what is left is a low likelihood but high consequence situation if it is triggered.
Activity on the Feb.10th of facets, surface hoar and buried suncrust is starting to taper off, and it is a lowered likelihood with large consequences scenario.  Some slides have been observed to step down to ground in thin snowpack areas.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
Feb 10 shears tightening up in deep snow pack areas west of the divide. In shallower snowpack areas this interface still producing whoomphing and easy to moderate shears.
Recent snow combined with mild temperatures and West winds have created soft slabs. These slabs are sitting on a variety of surfaces including rain crusts, sun crusts, old wind slabs and the interface to the previous storm snow and are 25-40 cm deep
Slowly this layer is becoming less reactive, but it remains a concern. Field tests, particularly on southern aspects, confirms this. It's now down 80-120 cm and more likely triggered from thinner areas or by larger loads.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
We are finding moderate to hard sudden collapse results on the Feb.10 interface. Thin and variable snowpack areas will be the easiest places to trigger this interface.
The Feb 10 layer will be touchier in the Eastern portion of the forecast area, less in the West. In addition to Feb 10, the Mar 13 layer, a suncrust on South aspects, can be found down 40-60cm. Snowpack tests on this layer produced moderate results.
The Feb 10 layer is touchier in the eastern portion of the forecast area, less in the west. In addition to Feb 10, the Mar 13 layer (suncrust on south aspects) can be found down 30-60cm. Snowpack tests on this layer have produced moderate results
The late March sun is packing a lot of punch. If the sky doesn't cloud over tmrw, we may see some natural activity out of steep rocky solar terrain.
With significant warming Tue and  incoming precipitation for the rest of the week, expect these slabs to become more reactive. Small changes in aspect and elevation seem to change the nature of these slabs so monitor what you are skiing on closely.
Heating on Tuesday will effect steep solar slopes and features such as cornices or snow near black bodies such as trees or rocks. Similarly,&nbsp; with some potential for rain at low elevations Wednesday, be cautious with the slab over the buried crust.
The Feb 10 layer is touchier in the eastern portion of the forecast area, less in the west. In addition to Feb 10, the Mar 13 layer (suncrust on south aspects) can be found down 30-60cm. No shears were found on Mt Field today during snowpack tests.
New snow overnight will have formed soft slabs in alpine and tree-line lee features. In wind-sheltered areas, it will likely be good quality skiing.
There are two layers of concern in the upper meter of the snowpack that continue to produce shears in isolated areas and have a high degree of uncertainty. Be very mindful of this problem in areas that have not previously avalanched.
Loose dry sluffs are running easily and gaining mass as they progress down the slope. Generally only small slides are anticipated, but watch your exposure to cliffs and trees as these can easily knock you off your feet.
Yesterdays new snow bonded poorly to the snow below and became very reactive as the temps warmed up. Loose, moist avalanches were easily triggered by skiers. These avalanches were at the smallest &quot;knee-twisters&quot; but some grew to size 2.5.
The new snow fails easily on steep slopes: Manage you group carefully and avoid confined features such as gullies.
Up to 25cm&nbsp; of new snow over the March 26 interface will quickly form a slab with mild temps and the forecast winds. On solar slopes these slabs will be found over a crust and may be particularly touchy.
70 to 110cm of snow is now settling above the early March Crusts. Variable shears persist in these slabs and they are well worth bearing in mind particularly as heating becomes more of a factor in the days and weeks to come.
Watch out for sluffs, as several big ones have been noted today and yesterday - particulary on steep, south facing terrain where a firm suncrust underlies this new snow. Check your exposure and make sure you don't get pushed into any obstacles.
In areas of the park with a weaker snowpack we remain concerned about the Feb 10 layer of facets and surface hoar located in the middle of the snowpack. This layer remains, and caution is advised in specific areas such as the burns in Kootenay Park.
20cm of new snow from earlier this week has bonded poorly to the snow below. It is especially reactive on solar aspects, where it is rapidly destabilized by even a little bit of sun. On lee aspects, soft slabs may exist from windloading by SW winds.
Two avalanches were triggered by the sun today.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> In areas with uneven, shallower or weaker snowpacks, we remain concerned with the Feb 10th midpack layer of crust/facets/surface hoar (Kootenay burns) and the </span><a href="https://www.facebook.com/media/set/?set=vb.145133538869977&amp;type=2#!/photo.php?v=643191412397518&amp;set=vb.145133538869977&amp;type=2&amp;theater" target="_blank"><span class="s_9255B882">basal facet layer.</span></a><span class="s_AA239A9B"> Stick to lower angled well supported terrain in these areas.
A weak layer down 20-30 cm is still reactive to skier-triggering. Use caution on unsupported features and convex terrain. Watch for changing conditions as temperatures warm up today and surface crusts deteriorate.
Spring sun is gaining in intensity. Expect solar aspects to shed snow during the heat of the day, especially when the skies are clear.
In areas with uneven, shallower or weaker snowpacks, we remain concerned with the Feb 10th midpack layer of crust/facets/surface hoar, and the basal layer. Choose conservative, well supported terrain in these areas.
The recent storm slabs have been slow to bond and remain in the skier triggerable range. Lee aspects in the alpine and treeline elevations are the more likely areas for a slide to propagate. Low elevations may have possible moist sluffs.
more reactive on solar aspects.
Although this problem still remains, triggering still remains possible. As time goes by it will become less likely that people will be able to trigger this layer.
Intermittent breaks in the cloudy weather is consistently producing loose dry sloughing to size 2 as the sun hits recent storm snow.
We`ve had some incremental loading, 30cm in 3 days. The sun is expected to poke through the clouds today so expect conditions to become more dangerous as the day progresses, specially on the solar aspects if that happens.
Intermittent breaks in the cloudy weather is consistently producing loose slides to size 2 as the sun hits recent storm snow.
Several avalanches have been observed deep in the snowpack over the past 24-hours. Avoid shallow areas where the snowpack is weakest. These avalanches are very unpredictable, so choose terrain that avoids steep, rocky slopes.
Recent warm temps and wind have contributed to the formation of a soft slab that has failed naturally over the last few days. This slab will become more sensitive to triggering with heating and could be triggered in steep or unsupported terrain.
Daily heating and the sun will create moist snow at low elevations and on solar aspects. Intense periods of radiation will trigger avalanches or cause cornice failures that could trigger avalanches as well.
Strong solar radiation is expected today. Think about getting off sun exposed slope when the crusts that formed overnight break down. Watch for loose avalanches below cliffs as an indication that things are becoming dangerous.
This problem represents a classic low likelihood high consequence situation. Areas that have not previously avalanched will be more susceptible to triggering.
The April sunshine is strong. If it pokes through the clouds today, expect solar aspects to destabilize quickly, especially at lower elevations.
Low elevation areas may see avalanche activity with the day-time warming, especially if the sun pops out.
If the sun comes out or if there is a rapid un-forecast rise in temperature watch out for loose wet avalanches.
Skiers looking for dry snow on the shaded aspects should frequently test the surface layers. A shear persists down about 30 cm with preserved stellar snow flakes and surface hoar. Caution in steep and unsupported terrain is advised.
Daily heating and the sun will create moist snow at low elevations and on solar aspects. As crusts break down avalanches will result. Cornices will also be affected by this heating and could trigger persistent slabs.
With significant heating in the forecast for Monday and Tuesday deep slabs may become active. Large loads such as falling cornices or smaller avalanches could trigger large avalanches on the March crusts or even the February facets.
As freezing levels rise things will become more unstable particularly in steeper terrain and at lower elevations. Snow that is very heavy and creates pin wheels is an indicator that snow stability is decreasing.
Skiers looking for dry snow on shaded aspects should frequently test the surface layers.&nbsp; A shear persists down about 30 cm&nbsp; with preserved stellar snow flakes and surface hoar. Caution in steep and unsupported terrain is advised.
Daily heating and the sun will create moist snow at low elevations and on solar aspects. Intense periods of radiation will trigger avalanches or cause cornice failures that could trigger avalanches as well.
Although unlikely, a large load such as a cornice failure or another avalanche could trigger all of the snow above these strong crusts. Significant and sustained heating or rain may also allow these slabs to become active such as is forecast Monday.
">Daily heating and the sun will create moist snow at low elevations and on solar aspects. As crusts break down Loose Moist or even Wet Slab avalanches will result. Cornices will also be affected by this heating and could trigger persistent slabs.
;font-weight: normal;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">With significant heating in the forecast for Tuesday deep slabs may become active. Large loads such as falling cornices or smaller avalanches could trigger large avalanches on the March crusts or even the February facets.
Moist surface sluffing and small wet slabs are likely on all aspects and elevations as freezing levels climb on Tuesday.  Stick to mellow terrain as even a small wet slide can be very powerful.
With high freezing levels, snow is particularly unstable on steeper terrain and at lower elevations. This heavy snow will pinwheel down the mountain, gathering mass, and is a clear indicator of snow stability decreasing.
The recent storm snow has not fully bonded to the underlying crust and surface hoar layer. Combined with the warm temp's, it has become a touchy surface slab that is reacting in higher elevation lee areas.
We may see the deeper instabilities reawaken with the warm temperatures, and possibly rain, moving into the snowpack. Try to avoid shallow, thin areas where a person could trigger a deeper weakness.
Low elevation south aspects will be particularly susceptible to loose wet avalanches. This problem will be most active in the warm afternoons.
With cooling temperatures this condition will stabilize. Rain and solar exposure will increase the danger. Weather conditions will be variable across the region. Snowballing and pin wheels should be regarded as signs of deteriorating conditions.
Be cautious of lower elevation areas that have no crust formation from overnight. Loose avalanches are possible there.
Be aware that step down avalanches are possible if storm slabs or wind slabs are triggered in wind loaded areas.
Solar effect and day warming will destabilize the snowpack on all slopes in the valley bottom. The danger will increase as it does. Travel below 1700m will be ugly. With increasing elevation and slopes that don't face south this effect will diminish.
If the sun comes out for prolonged periods today, we will likely see a rapid deterioration of the surface crusts. Start early if you are exposed to solar aspects, especially at lower elevations.
The large size 3.5 from Moccasin Flats 36 hours ago shows the persistent slabs have not gone away. Larger triggers, like cornices or surface avalanches, may step down to deeper layers.
Cool temperatures are suppressing this building instability. Localized sunny breaks will quickly reverse this big picture qualifier rapidly increasing the danger on the local radiated slope. Snowballing and pinwheels are good warning signs.
With poor freezes the last few nights and clear days, solar heating has allowed for widespread activity. Expect this activity to dissipate with cooling and clouds but to resume as the sun returns.
The cloudy skies overnight prevented a decent crust development. Expect lower elevation snow surfaces to be soft, with temp's getting close to isothermal, creating an unstable snowpack.
Without a good refreeze, there is less structure to the snowpack to prevent it from stepping down into the lower persistent weaknesses. The large size 3.5 from Moccasin Flats 2 days ago illustrates the potential destructive force lingering out there.
A melt freeze crust will form overnight however it will&nbsp; deteriorate rapidly with prolonged solar exposure.
Warm temperatures and solar inputs will deteriorate snow stability today as avalanche hazard rises in the afternoon.  Watch for terrain above you getting headed through out the day and use safe travel techniques to manage your group.
New snow in the past weak is possible to skier-trigger.  Watch for hard, wind-deposited snow on lee features in the alpine.  Storm slabs failing on crusts is possible at lower elevations.
A melt freeze crust is present with wet to moist snow beneath. The crust will deteriorate by mid afternoon and and avalanches are likely after this time. Steep solar aspects have the greatest likelihood.
Intense solar inputs will weaken last nights refreeze quickly and a loose wet cycle will likely start in the early afternoon.
Slopes that have been baking in the sun can fail as a slab on crusts and on higher alpine elevations on North lee aspects.
A melt freeze crust is present with wet snow beneath. The crust will deteriorate by mid afternoon. Steep solar aspects have the greatest likelihood. 
Later in the afternoon, loose moist/wet avalanches may start to come down if the sun is out and there is no cloud cover.
If the sun has been baking slopes, there is the possibility of a slab avalanche failing on buried crusts. In the alpine slab avalanches could be triggered on lee North apects.
On Tuesday expect this problem only on lower elevation, sun exposed places. Watch out in steep cliffy areas or steep forest in the afternoon.
The snowpack is warming and has the potential to rapidly destabilize with solar exposure or rain. At these times the crust, found near the surface, will melt releasing the moist and wet snow beneath. The danger will increase  rapidly as it does.
Even short bursts of solar heating can rapidly affect the snow this time of the year. With mild temperatures in the forecast, watch for rain to affect the snow at lower elevations.
Low elevation areas are relying on a good overnight freeze to keep the snowpack together. There was not a strong freeze last night, so expect the surface crust to break down with light rain and the occasional glimpse of strong April sunshine.
Although the forecast is calling for cooler, cloudier conditions, if the sun comes out, it will be strong and can destabilize the snow quickly. Also, be careful at lower elevations if it is raining.
Cool temperatures are limiting the extent of this problem. This can change rapidly with solar radiation particularly near rock alcoves that act like solariums. Watch for signs of snow melting during the day. These events will likely scrub to ground.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This problem is the culprit for the vast majority of the avalanches in the past week. Watch for remote triggers.
Storm snow will continue to be redistributed by predominantly NW winds at ridge tops in the high alpine . Storm slab could become more active if warmer temps and or higher winds develop.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Watch for remote triggers.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggers.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggers.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Watch for remote triggers.
Dry loose snow avalanches are still possible in steep rocky and unsupported terrain.&nbsp; Solar triggering is likely with forecasted sunny skies.
Caution in steeper and rocky terrain especially on ice climbing terrain.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggers.
Thin windslabs can now be found at treeline and can also be seen at lower elevations around our ice climbs. Extensive wind transport is evident in the alpine areas.
These slabs taper radically with elevation. Large slides resulted from failures in the recent storm snow over the crust that extends into the alpine.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggering.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggering.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggering.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Owing to the delicate structure of these layers we expect this problem will persist for the foreseeable future. 
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Owing to the delicate structure of these layers we expect this problem will persist for the foreseeable future.
These slabs taper radically with elevation and are sitting on a thick crust. Large slides resulted from failures in the recent storm snow over the crust that extends to around 2300m. These slabs may become easier to trigger with the expected heating.
Rapid warming with mixed rain and snow is leading to an increasing avalanche hazard.&nbsp; Recent storm snow may be sitting on good sliding surfaces such as surface hoar and crust.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.&nbsp; Once initiated avalanches triggered in the storm snow may step down to the deep persistent weak layers.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Warm temperatures and rain will increase avalanche activity especially at lower elevations and in gully features.
Warm temperatures and rain will increase avalanche activity especially at lower elevations and in gully features.
Rain to at least 1900m is saturating and weakening the snow. Below 1600m the wet surface snow will slide easily on buried crusts.
Mild temperatures and rain have increased the likelihood of loose wet slides at lower elevations.
The low elevation snowpack has lost all strength as a result of the warm temperatures and rain. Ice climbers in particular should be wary of steep gullies at and below treeline.
The low elevation snowpack has lost all strength as a result of the warm temperatures and rain. Ice climbers in particular should be wary of steep gullies at and below treeline.
Rain to at least 1900m has weakened the snow. Below 1600m the wet surface snow will slide easily on buried crusts. Small sluffs may pick up snow, gaining mass. Be cautious in confined terrain features, such as gullies.
Mild temperatures and rain have increased the likelihood of loose wet slides at lower elevations.
Cooling temperatures should bring an end to this problem by Saturday but treat the snow with care if things remain moist.
Rain to at least 1900m has weakened the upper snowpack and is likely to be saturated at the lower elevations.
Persistent slabs at treeline and sheltered sub-alpine slopes are starting to get overloaded by new snow and wind loading.
Deep persistent slabs at treeline and sheltered sub-alpine slopes still reactive from shallow areas within the snowpack.
Deep persistent slabs at tree line and sheltered sub-alpine slopes can be triggered from shallow areas within the snowpack.
These deep persistent slabs at tree line and sheltered sub-alpine slopes may be triggered from shallow areas within the snowpack.
The new snow moves naturally and with skier traffic above the surface crust. Use caution in confined terrain such as gullies or in high consequence terrain such as above cliffs.
These deep persistent slabs at tree line and sheltered alpine slopes may be triggered from shallow areas within the snowpack.
These deep persistent slabs at tree line and sheltered alpine slopes may be triggered from shallow areas within the snowpack.
These deep persistent slabs at tree line and sheltered alpine slopes may be triggered from shallow areas within the snowpack.
10-20cm of new snow will be quite reactive on a buried surface hoar layer, especially in steep terrain. Expect natural and skier triggered sluffing. Watch out for slab formation when warm temperatures, strong winds and additional snow arrive.
This SH layer now sits below 20-30cm of new snow. A storm slab is developing at higher elevations and wind-exposed areas. These slabs will bond poorly to the SH interface. Avalanches on this layer may run farther than expected, easily entrain snow.
Test the shear found on the weak snow above the crust frequently. Although clean shears found on the facets alone are serious, the isolated areas that hold surface hoar should be treated with even more respect. More snow may make this more touchy.
A 50cm slab sits over a very obvious surface hoar layer that reacted to human triggering yesterday. Sensitivity varies depending on drainage and elevation but the layer was observed to be almost everywhere and is a very real threat to riders.
Wind loading producing slabs on lee and cross loaded features at all elevations. Field teams today experienced cracking and whumphing in the new wind slab.
A 50cm slab sits over the December 17th surface hoar layer that reacted to human triggering yesterday. Sensitivity varies depending on drainage and elevation but the layer was observed to be almost everywhere.&nbsp; This layer is a real threat to riders.
The weak snow above the crust is new primed with a big enough slab for there to be serious consequences of triggering an avalanche. Isolated areas that hold surface hoar should be treated with even more respect.
A very touchy surface hoar layer is buried by a 50 to 70cm thick storm slab. This layer is widespread, and is likely to be triggered anywhere is has not yet failed. It is easily triggered by light loads (ie you), from distances of up to 100m away.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread touchy surface hoar layer down 50 to 70cm is likely to be triggered anywhere it has not yet failed. As the slab overtop stiffens it becomes less likely to trigger but  propagation and consequences will increase. </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Moccasin%20Flats%202014-12-24.pdf" target="_blank"><span class="s_9255B882">click photo</span></a><span class="s_AA239
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread touchy surface hoar layer down 50 to 80cm is likely to be triggered anywhere it has not yet failed. As the slab overtop stiffens it becomes less likely to trigger but propagation and consequences will increase.  </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Moccasin%20Flats%202014-12-24.pdf" target="_blank"><span class="s_9255B882">click photo</span></a><span class="s_AA239
Rider triggered and remote avalanches are happening daily on a widespread surface hoar layer down ~50cm. The overlying slab has gained enough strength to propagate widely which means bigger consequences. This problem will persist for a while. 
The weak snow above the crust is now primed with a big enough slab for there to be serious consequences. In the alpine this problem will likely be limited to N and E aspects but at treeline it is widespread. Use extra care in open, sheltered terrain.
The new snow will be very sensitive to skier traffic in steep terrain. Remember that there are some serious slabs lurking beneath the surface that could be triggered by these sluffs.
Rider triggered and remote avalanches are happening daily on a widespread surface hoar layer down ~50cm. The overlying slab has gained enough strength to propagate widely which means bigger consequences. This problem will persist for a while.
A touchy surface hoar layer continues to be reactive. Avalanches continue to be triggered, even in areas that have been heavily traveled. Some areas offer no clues of instability, but the potential for large avalanches exist.
A touchy surface hoar layer continues to be reactive. Avalanches continue to be triggered, even in areas that have been heavily traveled. Some areas offer no clues of instability, but the potential for large avalanches exist.
The December 17th surface hoar layer is still reactive.  Avalanches continue to be triggered even in locations previously skied. Some areas offer few clues of the instability but the potential for large avalanches continues.
The weak snow above the crust is now primed with a big enough slab for there to be serious consequences. In the alpine this problem will likely be limited to N and E aspects but at treeline it is widespread. Use extra care in open, sheltered terrain.
The December 17th surface hoar layer is still reactive. Avalanches continue to be triggered even in locations previously skied. Some areas offer few clues of the instability but the potential for large avalanches continues.
The Dec17th surface hoar is still reactive, with most events at treeline. A size 2 skier-controlled avalanche released on this layer yesterday. Buried surface hoar requires careful decision making, especially as more new snow continues to fall.
Although powdery in most places, 20-25cm of new snow is gaining cohesion. This layer has concealed recently formed wind slabs in exposed ares. Riders may be surprised by this layer, as these avalanches have the potential to trigger deeper layers.
The Dec17th surface hoar is still reactive, particularly at treeline. As new snow continues to fall the consequences of an avalanche on this layer increase, careful decision making is still necessary.
30 cm of low density storm snow is likely to move fast in sufficiently steep terrain. Be aware of your sluff as it could pick up mass and push you around.
The Dec 18 interface is down 35-50 cm and is producing easy to moderate results with field tests. There is likely enough load for human triggering to increase on this layer.
50cm of recent storm snow with more in the forecast. Settlement and winds have formed soft slabs particularly at ridge crests. Winds are on the rise and expect conditions to become more sensitive as winds continue.
The Dec17 surface hoar is most reactive at treeline. As snow load continues the consequences of an avalanche on this layer increase, careful decision making is still necessary. We suspect yesterdays Teddy Bear Trees avalanche to be on this layer.
50 cm of storm snow is likely to move fast in sufficiently steep terrain. Be aware of your sluff as it could pick up mass and turn into an avalanche.
The Dec 18 layer of surface hoar and crust is now buried 50-70 cm and primed for human triggering.  Avoid any areas where avalanches can start.
Facets and isolated surface hoar above the Dec 13 crust remain the feature to watch in the snowpack. New load from storms or wind transport will make this more sensitive to triggering especially when combined with warm temperatures Wednesday.
The snow from the turbulent storm is forming a 30 to 40 cm soft slab at all elevations that fails very easily in tests over the cold low density snow from the weekend. Expect more development of these slabs at higher elevations with more wind effect.
70cm of storm snow since the New Year with continued snowfall today. The surface snow is likely to sluff rapidly in steeper terrain and effect anything down slope of your location ie other skiers and riders.
70cm of storm snow since the New Year, moderate south winds and warming temperatures all translates into a settling surface slab. This will be most likely in highly wind exposed areas such as ridgelines and crossloaded features.
The December 17th surface hoar layer is still a real concern in the snowpack.  The significant storm snow load should be increasing the probability of triggering this deeper weak layer.  This layer is most prevalent at treeline elevations.
The lower part of the snowpack is weak and will be overloaded easily with much additional load. Avoid steep (&gt;35 degree) open slopes at treeline and above. Shallow rocky areas are likely areas to trigger this problem.
The Dec 18 layer of surface hoar and crust is now buried 50-70 cm and primed for human triggering. Avoid any areas where avalanches can start.
Sluffing can be expected in steeper features at and below treeline in non-wind affected locations.  keep an eye out for people traveling below you in open terrain and stay out of terrain traps where sluffs can have larger consequences.
The storm slab should be settling and stiffening with the warming temperatures.  The question is the bond to the old snow surface of colder recrystalized snow.  We currently think this interface is weak and ripe for triggering.
The December 17th layer produced our larger controlled slides yesterday.  Slides initiating in the storm snow have a good probability of overloading this layer as they gain volume.  This layer is most prevalent at treeline elevations.
Recent storm snow has started to settle into a slab which overlies a weak layer of facets and old surface hoar. Field teams were able to ski cut several small soft slabs to size 1 at treeline and below treeline elevations today.
The Dec 18 layer of surface hoar and crust is now buried 50-70 cm and primed for human triggering. Avoid any areas where avalanches can start at treeline and above.
The lower part of the snowpack is weak and will be overloaded easily with much additional load. Avoid steep (&gt;35 degree) open slopes at treeline and above. Shallow rocky areas are likely areas to trigger this problem.
The bond of the recent storm snow continues to improve however given the right location could still be reactive to human triggering. Steeper windloaded features at and above treeline should be treated with respect.
Sluffing in steep terrain should still be considered in your route planning as you travel today. Avoid exposure to groups above you in steeper confined terrain below treeline.
Recent storm snow has settled into a slab which overlies a weak layer of facets and surface hoar. A forecast of warm temps and clear skies on Friday may well lead to an increased likelihood of avalanches on solar aspects.
Continue to watch for this layer which has proven to be extremely variable. Areas where these slabs are thin may should raise added caution.
The Dec 17 instability is still active. Yesterday a field team triggered a sz 1.5 on a convex roll at treeline that had previously released and since reloaded. This layer is widespread at treeline and should not be forgotten during decision making.
Recent storm snow has settled into a soft slab which overlies a weak layer of facets and surface hoar. Temperature fluctuations and direct solar radiation may well lead to an increased likelihood of avalanches.
The Dec 18 layer of surface hoar and crust is now buried 50-70 cm and primed for human triggering. Avoid any areas where avalanches can start at treeline and above.
Recent storm snow has settled into a soft slab which overlies a weak layer of facets and surface hoar. Temperature fluctuations and direct solar radiation may lead to an increased likelihood of avalanches.
We are getting lots of large whumphs on the Dec 18th layer consisting of facets/crust. This indicates the potential for skier triggering in steep terrain. Areas where the snow over this layer has stiffened into more of a slab are of the most concern.
In many areas of the forecast region the potential for avalanches to step down to the basal facets is still possible. Large propagations are also possible and the resulting avalanche could be quite destructive.
The Dec 18 layer of surface hoar and crust is now buried 50-70 cm and primed for human triggering. Avoid any areas where avalanches can start at treeline and above.
Perpetual whumphing of the Dec 18th layer consisting of facets/crust exists. Skier triggered surface slabs have the potential to step down to the Dec18th layer.
In many areas of the forecast region there is potential for avalanches to step down to the basal facets. Wide propagations and large destructive avalanches are possible.
Continue to watch for this layer which has proven to be extremely variable. Areas where these slabs are thin should raise added concern.
This is a serious weak layer down 40 cm that seems to be either crust, facets or surface hoar depending on location.&nbsp; Snowpack tests continue to be in the moderate and sudden range for this layer, indication strong potential for human triggering.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and can be triggered in steep, rocky terrain features.&nbsp; Patience is a virtue with this problem, as bigger terrain may not be available until later this winter.
This is a serious weak layer down 40 cm that seems to be either crust, facets or surface hoar depending on location. Snowpack tests continue to be in the moderate and sudden range for this layer, indication strong potential for human triggering.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and can be triggered in steep, rocky terrain features. Patience is a virtue with this problem, as bigger terrain may not be available until later this winter.
This layer is more touchy in deeper snowpack areas where it is more deeply buried (30 - 50 cm down) and at lower elevations where it is a rain crust/ surface hoar combination.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and can be triggered in steep, rocky terrain features. Patience is a virtue with this problem, as bigger terrain may not be available until later this winter.
Some small pockets of surface hoar may still be present at and below treeline.
Continue to watch for this layer which has proven to be extremely variable. Be extra vigilant in thin snowpack areas, where the layer is more likely to be triggered by riders/climbers.
Some small pockets of surface hoar may still be present at and below treeline. Warm temperatures could be the trigger for avalanches to occur in these areas.
There's 20-30cm of new snow overtop our latest surface hoar layer. This layer was observed to be widespread. As winds pick up and and the temperatures rise expect soft slabs to form and to be reactive to rider triggering.
15 to 25 cm now lies over the Jan 16 interface that consists of Surface Hoar, Facets, Suncrusts, and windslabs. Mild temperatures will encourage the formation of a soft slab over this weak layer.
~50cm of new snow overtop the widespread Jan 15 surface hoar layer. This layer was very reactive to human triggering yesterday. Expect this sensitivity to continue with the storm slab that formed overnight with the sustained strong southerly winds.
Although we have received recent extra snow load on this layer, it is not reacting. It is becoming less and less reactive as time goes by. Be mindful in thin snowpack areas, where the layer is more likely to be triggered by riders/climbers.
New windslabs 20 to 40cm deep can be found in almost any lee areas including crossloaded features. These slabs are easily triggered and some the resulting avalanches have been stepping down to the Dec 18 persistent slabs.
45cm+ of storm snow sits on the weak reactive January 15 surface hoar layer. Numerous natural avalanches to size 3 and skier triggered slides to size 2 have occurred over the last couple days on this layer.
Although we have received recent extra snow load on this layer, it is not reacting. It is becoming less and less reactive as time goes by. Be mindful in thin snowpack areas, where the layer is more likely to be triggered by riders/climbers.
A 60cm+ thick cohesive slab now overlies a very touchy surface hoar layer. Tests indicate that it is likely to propagate if triggered, and avalanches have been remotely triggered from up to 300m away.
The Dec 18 SH continues to be found 50 cm down, but the layer becoming harder to find, and is slowly bonding to the overlying snow. Regardless, this layer&nbsp; is still present and should be considered carefully
A 60cm+ thick cohesive slab now overlies a touchy surface hoar layer. Tests indicate that it may be triggered by light loads (ie you) and likely to propagate widely as the slab stiffens. Avalanches have been remotely triggered from up to 300m away.
We received additional snow load last weekend but have still not seen any evidence of activity on this layer in our area even though neighbouring areas have. Be mindful in thin snowpack areas, where the layer is more likely to be triggered.
The Dec 18 SH continues to be found 50 cm down, but the layer becoming harder to find, and is slowly bonding to the overlying snow. Regardless, this layer is still present and should be considered carefully
A 60cm+ thick cohesive slab now overlies a touchy surface hoar layer. Tests indicate that it may be triggered by human loads and likely to propagate widely as the slab stiffens. Avalanches have been remotely triggered from up to 300m away.
Steep and shallow areas below TL will likely get saturated and lose support underfoot. Avoid consequential areas where heavy wet slides may push you over or into terrain traps. Low elevation ice climbs will be prone to wet sluffs and wet climbing.
Strong W winds continue to scour open slopes and redistribute that snow into wind slabs on lee aspects and cross loaded features. This extra load combined with a skier could be sufficient to initiate an avalanche
The Dec 18 surface hoar continues to be found 50cm down, but the layer is slowly bonding to the overlying snow. Regardless, this layer is still present and should be considered carefully especially as we experience warming temps and additional load.
40cm of new snow and strong southerly winds in have created a reactive storm slab. Expect storm slabs to be significantly thicker on lee features where snow has been transported by wind. This layer is easily triggered and will need time to stabilize.
Although this surface hoar layer is now buried 70-100cm deep, it will be easily triggered today with addition of the new snow load. Stability tests show that this layer has good propagation potential, making large avalanches likely.
Strong winds may keep snow surfaces cool at upper elevations, but thin rocky areas on solar aspects should be suspect to warming, and may trigger the weaker basal layers and subsequent larger avalanches.
The Dec18 surface hoar continues to be found 50-70cm down. This layer should be considered carefully especially as we experience warming temps and the recent additional snow load.
Warm temperatures and any sun will start small, wet avalanches, especially in steep, rocky terrain.  These will be especially of concern to ice climbers in gully features.
Steep and shallow areas below TL will likely get saturated and lose support underfoot. Avoid consequential areas where heavy wet slides may push you over or into terrain traps. Low elevation ice climbs will be prone to wet sluffs and wet climbing.
Strong SW winds continue to scour open slopes and redistribute that snow into wind slabs on lee aspects and cross loaded features. This extra load combined with a skier could be sufficient to initiate an avalanche
We have 40cm of recent storm snow with very mild temperatures. Winds are strong in the alpine and its raining below 2000m.
Mid January surface hoar layer is now buried 60-100cm deep. This layer is likely to become more reactive with the current warm conditions and rain we are receiving. 
Up to 11mm of rain so far and currently 0 degrees at 2000m. Loose avalanches may also trigger slabs on deeper instabilities.
Now 20 to 40cm deep, these slabs have developed along with Cornices due to Westerly winds and appear to be quite obvious in open lee features. Although most developed at Treeline and above these slabs appear reactive at lower elevations as well.
Now 40 to 120cm deep. These slabs still demand attention particularly with the warm temperatures. Be mindful in thin snowpack areas, where this layer is more likely to be triggered.
Small solar sluffs&nbsp; triggered the persistent slabs plus deep slabs failing on facets at the base of the snowpack Saturday. The snowpack has been weakened by heating and this is most pronounced at lower elevations, on solar slopes, and in thin areas.
Steep and shallow areas below TL are saturated and have lost much of their support underfoot. Avoid consequential areas where heavy wet slides may push you over or into terrain traps. Low elevation ice climbs will be prone to wet sluffs.
Strong SW winds continue to scour open slopes and redistribute that snow into wind slabs on lee aspects and cross loaded features. This extra load combined with a skier are at a critical mass and will likely initiate an avalanche
Strong winds may keep snow surfaces cool at upper elevations, but lower elevations and thin rocky areas on solar aspects should be suspect and may trigger the weaker basal layers and subsequent larger avalanches.
Strong winds may keep snow surfaces cool at upper elevations, but lower elevations and thin rocky areas on solar aspects should be suspect. Loose wet avalanches may also step down and trigger deeper layers in the snowpack.
We have up to 15mm or rain and 40cm of recent storm snow with very mild temperatures at all elevations.
Mid January surface hoar layer is now buried 60-100cm deep. This layer is becoming more reactive with the current warm conditions and rain we are receiving.
Up to 15mm of rain so far and currently 0 degrees at 2000m. Loose avalanches are triggering slabs on deeper instabilities and gouging to ground when they run into tree line.
Wet avalanches will continue to occur on Tuesday at low elevations. Ice climbers should avoid avalanche terrain, in particular the gullies where wet avalanches have been running.
Wet avalanches will continue to occur on Tuesday at low elevations. Ice climbers should avoid avalanche terrain, in particular the gullies where wet avalanches have been running.
The snow below treeline is saturated from the rain and if it slides, it will go to ground. Avoid consequential areas where heavy wet slides may push you over or into terrain traps. Low elevation ice climbs will be prone to wet sloughs.
Strong SW winds continue to scour open slopes in the alpine and redistribute that snow into wind slabs on lee aspects and cross loaded features. This extra load combined with a skier will likely initiate an avalanche.
Natural and artillery triggered avalanches continue to fail on the Jan.15 surface hoar layer, now buried 60-100cm deep. This layer continues to propagate widely into very large avalanches. Avalanches may step down to a deeper layer from mid Dec.
Temperatures stayed warm overnight. It is presently +3'C at 2000m. Until temperatures fall below freezing, the snowpack will remain weak. Loose avalanches have triggered slabs on deeper instabilities and gouged to ground when they run into tree line.
40cm of storm snow was followed by 15mm of rain.&nbsp; This moist slab is likely to be touchy until temperatures drop below freezing.
Cooling temperature will help to stabilize the moist snow which will occur most rapidly near treeline as the freezing level falls over the next 24 hours. Until this happens the snowpack at lower elevations will remain unstable and avalanche prone.
Recent avalanches have been failing on the Jan.15 surface hoar layer, now buried 60-100cm deep. Some avalanches have stepped down to a deeper layer from mid Dec.
Jan 15 surface hoar layer is buried 60-100cm deep. This interface remains reactive due to large, poorly bonded surface hoar crystals.  Avalanches from large triggers such as cornice fall might step down to a deeper layer from Dec 17.
Jan 15 layer is buried 60-100cm deep. This layer remains a concern due to large, poorly bonded surface hoar crystals.  As snow continues to settle, this layer will require larger triggers to initiate. Cornice failures could step down to deep layers.
Jan 15 layer is buried 60-100cm deep. This layer remains a concern due to surface hoar crystals. As snow continues to settle, this layer will require larger triggers to initiate. This layer could be triggered by heavy loads or from shallow areas.
Expect widespread sluffing on the crust. Watch for pockets of slab over this layer especially from last nights SW winds .
Soft slabs will be more prevalent today due to steadier overnight winds.  ~35cm sits on a firm, smooth layer providing a good surface for avalanches to slide on. Exercise extra caution near ridge crests or cross loaded terrain features.
The pineapple forecast for Thursday will change things in a hurry: with warm temps and strong winds, expect rapid slab formation TL and above. With a freezing level of 2000m expect loose wet, or thin wet slab activity BTL.
The low forecast for Thursday will change things in a hurry for the weekend: with warm temps and strong winds, expect rapid slab formation TL and above. With a freezing level of 2000m expect loose wet, or thin wet slab activity BTL.
Storm snow will be redistributed by mod southerly winds on to alpine lee slopes and crossloaded features. This storm snow sits on a firm smooth surface especially below 2200m. Take time to assess the snowpack while approaching wind affected features.
At treeline and above a soft slab is forming which sits on a firm bed surface. This storm slab is triggerable, and may propagate widely. In areas sheltered from the wind the loose storm snow may sluff on steep slopes, gaining mass.
A soft slab is forming which sits on a firm bed surface. This storm slab is triggerable and may propagate widely due to buried surface hoar on a crust. Continued loading through the storm will increase reactivity and the size of resulting avalanches.&nbsp;
Another 50+ cm and strong alpine winds are expected over the next 48 hours. Expect rampant storm slabs to be forming and failing either within the storm snow or on the Jan 30 interface, especially at upper elevations.
30-50 cm of low density powder currently, and 50+cm more over the next 48 hours will sluff easily and run fast and far on the Jan. 30th crust or within the storm snow itself. Watch your sluff in steep terrain and heads up if the wind picks up.
These slabs could grow rapidly with mild temps, moderate winds and heavy snow forecast. If freezing levels rise wet slabs could be very touchy at lower elevations. Monitor slab depths and resistance by feeling for the crust. Watch forecasts closely.
The Jan 30th interface has proven reactive with light inputs of new snow. This new storm will only continue to overload that layer. Also, treat recently re-loaded bed surfaces with caution as this layer will not go away easily.
Intense loading continues with a new input of snow on lee and cross loaded features at all elevations.
Storm slabs will be rampantly forming and failing, especially at higher elevations. The bond to the Jan 30 interface and within the storm snow itself will be critical to monitor.
25-30cm of heavy snow over lighter snow will make conditions dangerous until the rain and snow stop and temperatures cool down.
The Jan 30th interface has proven reactive with light inputs of new snow. This new storm will only continue to overload that layer. Also, treat recently re-loaded bed surfaces with caution as this layer will not go away easily.
Storm slabs are the primary issue in the upper snowpack and failures will be occurring both within the colder low density and on the January 30th crust interface. This problem will be most prominent in the alpine and treeline bands on all aspects.
Another 20+ cm and strong alpine winds are expected over the next 12 hours. Expect rampant storm slabs to be forming and failing either within the storm snow or on the Jan 30 interface, especially at upper elevations.
Recent intense precipitation has fallen as rain at lower elevations. With higher freezing levels, expect that the surface snow will be saturated making loose wet avalanches likely.
Thick storm slabs can be found on all aspects at treeline and above.
Storm slabs are the primary issue in the upper snowpack and failures will be occurring both within the colder low density and on the January 30th crust interface. This problem will be most prominent in the alpine and treeline bands on all aspects.
Expect storm slabs to continue to fail, either within the storm snow or on the Jan 30 interface, especially at upper elevations.
Thick storm slabs can be found on all aspects at treeline and above.
Isothermal conditions exist at treeline and below. Many loose wet avalanches that have gouged down to ground have been observed below 1800 metres.
The snowpack is very weak at treeline and below elevations due to warm temperatures and isothermal snow conditions.
Thick storm slabs can be found on all aspects at treeline and above.
Below 2000m the snowpack has been hit mainly by rain. Surface crusts are just beginning to form and are all that there is to hold the lid on what remains of the soaked snowpack.
A weak temperature crust overlies isothermal conditions at treeline and below elevations. Many loose wet avalanches that have gouged down to ground have been observed in past 48 hours.
The snowpack is very weak at treeline and below elevations due to warm temperatures and isothermal snow conditions.
Natural activity has settled down but approach any slopes with caution before jumping in.
A weak temperature crust overlies isothermal conditions at treeline and below elevations. Many loose wet avalanches that have gouged down to ground have been observed in past 48 hours.
The snowpack is very weak at treeline and below elevations due to warm temperatures and isothermal snow conditions.
Small avalanches are easily triggered by skiers below ~1500m where wet snow runs easily on the crust below. Once moving they gain mass until the slope lessens. Although small these wet slides could easily hurt a skier, or bury them in a terrain trap.
The 1 meter of storm snow has transitioned into a persistent slab. This slab is sitting on a raincrust/surface hoar weakness.
Avalanches are easily triggered below 1800m where wet snow runs on a crust. The forecast is for clouds, but should the sun emerge expect natural avalanches from steep solar aspects.&nbsp; Loose avalanches can gain mass and momentum quickly.
Continued warm temperatures have created isothermal conditions below 1800m. Use caution in any steep terrain when the snowpack is isothermal.
These slabs are sitting on a surface hoar layer in sheltered areas. Triggering of these slabs is possible even in low angle terrain .
Below 2000m surface crusts are all that there is to hold the lid on a wet snowpack. Without a solid freeze these crusts remain weak and will break down quickly with further heating. Loose wet activity may also trigger wet slabs in isolated locations.
With rising freezing levels expect wet avalanches at all elevations. The forecast is for clouds, but should the sun emerge watch for natural avalanches from steep solar aspects. Loose avalanches can gain mass and momentum quickly.
Continued warm temperatures have created isothermal conditions below 1800m. Use caution in any steep terrain when the snowpack is isothermal.
Deep soft slabs are sitting on this reactive layer. Triggering of these slabs is possible even in low angle terrain .
The moisture in the upper snowpack at lower elevations will be a concern to riders until lower level temperatures will remain consistently below freezing to form a solid crust.
Forecasters are doubtful that cooler temperatures will improve this weakness in the short term.  Triggering of these slabs is possible even in low angle terrain .
Isothermal snow exists below 2000m. It will not take much solar input to break down a freeze, especially in steep gully terrain.
Ice climbers should be aware of loose wet avalanches out of steep terrain on solar aspects. The snowpack is saturated below 2000m currently and wont take much sun to break down any overnight freeze.
The sun is starting to pack a punch! Although forecasted temperatures are cooler over the next few days, it is still a good idea to stay out from under steep rocky terrain during the heat of the day!
Watch for the sun to rapidly warm the surface snow and cornices, raising the hazard Tuesday morning with lingering warm air at upper elevations and a weak freeze expected. This activity will become unlikely beyond Tuesday afternoon with cooling.
Overcast conditions are unlikely to lead to any overnight refreeze of the snow pack at lower elevations. As such, solar aspects BTL could be prone to loose snow slides whenever the sun makes an appearance.
The warm temperatures will create wet sluffs and rockfall on south facing cliffs and gullies below treeline. Ice climbers should avoid this terrain, and instead search for north facing climbs where the cold temperatures will keep things solid.
The warm temperatures will create wet sluffs and rockfall on south facing cliffs and gullies below treeline. Ice climbers should avoid this terrain, and instead search for north facing climbs where the cold temperatures will keep things solid.
The warm temperatures will create wet sluffs and rockfall on south facing slopes and gullies at and below treeline. Ice climbers should avoid this terrain, and instead search for north facing climbs where the cold temperatures will keep things solid.
The warm temperatures will create wet sluffs  on south facing slopes and gullies at and below treeline. Isothermal conditions may develop at below treeline elevations.
Overcast conditions are unlikely to lead to any overnight refreeze of the snow pack at lower elevations. As such, solar aspects BTL could be prone to loose snow slides whenever the sun makes an appearance.
Warm temps and strong sun yesterday weakened the surface snow. Temps stayed above 0 to at least treeline and it is now raining lightly. The weak, moist surface snow may be easily triggered on steep slopes, gaining mass and traveling long distances.
Overcast conditions and high freezing levels will prevent any overnight refreeze of the snow pack at lower elevations. As such, solar aspects BTL could be prone to loose snow slides whenever the sun makes an appearance.
The warm temperatures will create wet sluffs and rockfall on south facing slopes and gullies at and below treeline. Ice climbers should avoid this terrain, and instead search for north facing climbs where the cold temperatures will keep things solid.
The warm temperatures will create wet sluffs on south facing slopes and gullies at and below treeline. Isothermal conditions may develop at below treeline elevations.
At treeline and below warm temps and rain is further weakening the snowpack. The weak, moist surface snow may be easily triggered on steep slopes, gaining mass and traveling long distances.
The warm temperatures will create wet sluffs and rockfall on south facing slopes and gullies at and below treeline. Ice climbers should avoid this terrain, and instead search for north facing climbs where the cold temperatures will keep things solid.
Watch for sluffing to start out of exposed rocky areas where the suns heat has more impact. Limit your travel in steep exposed slopes during Friday. Rain forecast for Sat will increase the likelihood of wet slides in saturated snow.
The warm temperatures will create wet sluffs on south facing slopes and gullies at and below treeline. Isothermal conditions may develop at below treeline elevations.
Warm temperatures and strong solar effect will continue to produce avalanches on steep solar facing terrain.
While not reactive recently, the deep persistent weakness could still be triggered by a smaller avalanche or cornice failure.
A poor overnight re-freeze combined with ongoing warm temperatures and sunshine will continue to destabilize the upper snowpack. The weak, moist surface snow may be easily triggered on steep slopes, gaining mass and traveling long distances.
Watch for early morning rain and isothermal conditions on low elevation ice climbs.
Watch for rain in lower elevations
A widespread loose wet natural avalanche cycle was observed yesterday afternoon. A poor overnight re-freeze combined with ongoing warm temperatures and new precipitation will continue to destabilize the upper snowpack.
Large cornices or surface avalanches are the likely trigger for this slumbering giant.
New slabs sitting on a newly formed crust can be found at all elevations but are much more significant at the upper limits of treeline and the alpine. These will be more reactive in steep or unsupported terrain and may be ripe in many start zones.
As temperatures increase this week watch for moist snow to develop at lower elevations where most of the snowpack has yet to refreeze. If the sun comes out this will happen quickly on solar slopes.
Watch for moist snow and loose avalanches originating from cliffs as indications of instability. At lower elevations you can probe with your pole to see how thick the crust is and determine whether it is breaking down with day time warming.
Watch for moist snow and loose avalanches originating from cliffs as indications of instability. At lower elevations you can probe with your pole to see how thick the crust is and determine whether it is breaking down with day time warming.
At lower elevations the snowpack is weak and spring like. Warm overnight temperatures have prevented an overnight freeze. If snow turns to rain it will rapidly weaken the snowpack.
At lower elevations the snowpack is weak and spring like. Warm overnight temperatures have prevented a solid overnight freeze. Forecasted rain&nbsp; at lower elevations will rapidly weaken the snowpack.
As temperatures increase watch for moist snow to develop at lower elevations and climb in elevation as the day heats up. When the sun comes out this will happen quickly on solar slopes. Expect this moist snow to move easily over the buried crust.
As temperatures increase watch for moist snow to develop at lower elevations and climb in elevation as the day heats up. When the sun comes out this will happen quickly on solar slopes. Expect this moist snow to move easily over the buried crust.
Warm overnight temperatures and ongoing rain continues to weaken the snowpack at lower elevations. Loose wet avalanches are easily triggered by skiers. These avalanches have the potential to run far and fast, especially where buried crusts exist.
Rain below 2000m Saturday means the snowpack will likely be isothermal below treeline and some treeline areas.
Watch locally for sun affect as lower elevation slopes may be isothermal Sunday.
Lower elevations were saturated with rain over the last few days. Loose wet avalanches, gaining more mass than expected, have been easily triggered by backcountry riders in the area. Any solar radiation today will further increase this risk.
Recent rain has helped produce isothermal conditions below treeline, especially in the afternoon as a result of daytime warming.
Watch locally for sun affect as lower elevation slopes may be isothermal Monday.
Heating on Thursday will likely provide quite a jolt to accumulating new now. Expect moist activity in the surface snow.
Watch locally for sun affect as lower elevation slopes may be isothermal Tuesday.
The sun is packing a punch these days. Watch out for loose wet sluffs in steep solar terrain if the sun is out.
Expect the sun to have a lot of power when it makes an appearance. Rising freezing levels make a solar trigger much more likely.
Expect the sun to have a lot of power when it makes an appearance. Rising freezing levels make a solar trigger much more likely.
Recent storm snow is settling into a slab and is bonding poorly where it overlies a crust. SW winds are increasing and are creating pockets of windslab at ridgetop. As freezing levels rise the slab may become more reactive.
The building load of storm snow is settling into a surface slab and is bonding poorly where it overlies a crust.  S through SW winds are creating pockets of fresh windslab at ridge top. Rising temps will increase reactivity of the storm slab.
Warm temps and rain are weakening the snow we received over the last week. Although these may start as snowballs from trees and cliffs they can accumulate a lot of mass. If the sun comes out expect activity to spike on solar aspects.
Rising freezing levels on Friday has the potential to create a loose wet avalanche problem on solar aspects
Rising freezing levels on Friday may create a loose wet avalanche problem at lower elevations.
Warm overnight temperatures prevented a re-freeze of moist surface snow. Freezing levels will climb to 2900m in Rogers Pass with an alpine high of 5 C. Warm temperatures will quickly weaken the snowpack making loose snow avalanches very likely.
Rising freezing levels on Friday has the potential to create a loose wet avalanche problem on solar aspects
Rising freezing levels on Friday may create a loose wet avalanche problem at lower elevations.
Warm temperatures prevented a re-freeze of surface snow. 10mm of rain fell this morning, further destabilizing the upper snowpack. Freezing levels at 2000m and sunshine will increase hazard on solar slopes. These avalanches can run far and fast.
Avalanche activity will depend upon overnight freeze and solar input Sunday. There is a lot of heat and moisture in the lower elevation snowpack.
The amount of overnight freeze and solar input will dictate the amount of avalanche activity Sunday.  There is currently a lot of heat and moisture held in the snowpack. 
More rain is expected throughout today as freezing levels rise to near 2000m.
Avalanche activity will depend upon overnight freeze and solar input Sunday. There is a lot of heat and moisture in the lower elevation snowpack.
More light rain is expected throughout today as freezing levels rise to near 2400m.
As heating breaks down thin surface crusts the entire moist snowpack below can become available to failure especially at lower elevations or on solar slopes. Watch overnight freezing levels closely and monitor the effects of the sun on the snow.
Avalanche activity will depend upon overnight freeze and solar input. There is a lot of heat and moisture in the lower elevation snowpack.
The amount of overnight freeze and solar input will dictate how big of a concern this problem is on Tuesday. Pay attention to how quickly the day is warming up.
Continued warm precipitation has been enough to begin to overload the various persistent instabilities in our snowpack. A series of weak layers in the top 1.5m of snowpack should be considered triggerable by back country riders.
Widespread loose wet avalanches have been occurring in the highway corridor and should be expected in the back country at and below treeline.
Heavy rain at lower elevations has soaked any remaining snow left at below treeline elevations, thereby increasing the risk of loose wet slides. The cooling trend should help 'tighten' up the snow at this elevation over the next few days.
20cm of new snow has added to the growing storm slabs at higher elevations. Strong SW'ly winds have magnified loading creating deeper, and touchier, pockets in lee areas. The storm slabs may be more reactive where they bond poorly to crusts below.
Up to 60cm of new snow exists at higher elevations. This new storm snow will get it's first &quot;kiss from the sun&quot; today, which often triggers avalanches. The storm slabs may be more reactive where they bond poorly to crusts below.
Small amounts of snow above the crusts will fail easily with solar heating.
Strong solar radiation is forecast for today. Once the overnight crust breaks down expect more avalanche activity on solar aspects.
The new snow is likely to fail easily in very steep terrain naturally however travelers will experience sluffing in steep terrain as they travel through. Manage your group carefully to prevent being caught by these sluffs especially above cliffs.
As the sun comes out on Tuesday expect moist snow to develop and fail naturally first on solar slopes and then on lower elevation shaded slopes. This should be more serious on Thursday with clear skies and a higher freezing level expected.
The effects of solar radiation will increase the hazard on steep solar aspects during the course of the day. Travel early in the day while the hazard is Low on any exposed solar aspects and watch for increased avalanche hazard as temperatures rise.
The effects of solar radiation will increase the hazard on steep solar aspects during the course of the day. Travel early in the day while the hazard is Low on any exposed solar aspects and watch for increased avalanche hazard as temperatures rise.
Moistening snow and signs of loose avalanches pouring off cliffs are indications that the upper snowpack is weakening, this is when you want to minimize your groups exposure on slopes in the sun.
The effects of solar radiation will increase the hazard on steep solar aspects during the course of the day. Travel early in the day while the hazard is Low on any exposed solar aspects and watch for increased avalanche hazard as temperatures rise.
The effects of solar radiation will increase the hazard on steep solar aspects during the course of the day. Travel early in the day while the hazard is Low on any exposed solar aspects and watch for increased avalanche hazard as temperatures rise.
Moistening snow and signs of loose avalanches pouring off cliffs are indications that the upper snowpack is weakening. When the surface is warming up it's time to minimize your exposure to slopes in the sun.
East, south and west facing slopes will all become effected by strong solar radiation, resulting in morning crust and wet snow in the afternoon. Watch for wet avalanches in gullies and other steep terrain feature starting mid-day.
Solar radiation on steep solar aspects is increasing the hazard during the course of the day. A surface condition at this point but can build enough mass to bury a person or increase the consequences with terrain traps. Travel early on solar aspects.
Moistening snow and signs of loose avalanches pouring off cliffs are indications that the upper snowpack is weakening. Probing with your pole can help to assess if the crusts are breaking down; if they are it's time to move into the shade.
East, south and west facing slopes will all become effected by strong solar radiation, resulting in morning crust and wet snow in the afternoon. Watch for wet avalanches in gullies and other steep terrain feature starting mid-day.
Solar radiation on steep solar aspects is increasing the hazard during the course of the day. creating surface conditions that could build enough mass to bury a person or increase the consequences with terrain traps. Travel early on solar aspects.
As the freezing levels remain high overnight Thursday and into Friday with the potential for some solar heating watch for continued activity as surface crusts break down. The recent snow has proven to be quite reactive over the buried crust.
East, south and west facing slopes have all been affected by strong solar radiation. This will result in morning crusts, and wet snow in the afternoon. Watch for wet avalanches in gullies and other steep terrain feature starting mid-day.
As the sun comes out on Thursday, expect the new snow to fail easily over the crusts.
: Normal;font-weight: normal;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">The sun may come out later today. With all the new snow we've had, it won't take much to kick off some loose avalanches on solar aspects.</span><span class="s_AA239
1681A555">The new snow will get a strong dose of sun today and loose avalanches are expected. Once moving, avalanches may dig down into wet snow deeper in the snowpack resulting in large wet avalanches.
If we get significant amounts of snow today, along with winds, the new slabs will be particularly touchy, given that they will be sitting on a house of cards (surface hoar and crusts).
Up to 20 cm of snow expected through the night and Friday with mod SW winds will build storm slabs on top of a well developed surface hoar layer. Sheltered northerly aspects are likely areas where this surface hoar is most prevalent.
25cm of heavy new storm snow has combined with strong SW winds to form a slab over a touchy, widespread surface hoar layer. This slab is easily triggered by riders and has the potential to propagate into larger than expected avalanches.
Up to 20 cm of snow expected through the weekend with mod SW winds will build storm slabs on top of a well developed surface hoar layer. Sheltered northerly aspects are likely areas where this surface hoar is most prevalent.
25cm of heavy new storm snow has combined with strong SW winds to form a slab over a touchy, widespread surface hoar layer. This slab is easily triggered by riders and has the potential to propagate into larger than expected avalanches.
25 cm of snow so far with a total of 40 cm expected by Tuesday night.  Mod to strong SW winds building slabs on top of a well developed surface hoar layer. Sheltered northerly aspects are likely areas where this surface hoar is most prevalent.
35cm of storm snow in past 48hrs along with warm temps and strong SW winds have formed storm slabs over a widespread weak surface hoar &amp; facet layer. If triggered there is potential for large slab propagation.
The Dec 2nd surface hoar layer is reaching critical overloading by the storm slab. Expect the storm slab to be reactive to both human and natural triggering.
15 - 45 cm's of new snow is slowly settling into a cohesive slab. This slab will be most reactive in deeper snowpack areas where there is more than 30 cm's of new snow and below 2000m where it overlies the Dec. 3rd surface hoar or facets.
30 - 45 cm's of new snow is slowly settling into a cohesive slab. This slab will be most reactive below 2000m where it overlies the Dec. 3rd surface hoar or facets.
The Dec 2nd surface hoar layer has reached critical load. Expect the storm slab to be reactive to both human and natural triggering.
30 cm since Dec 5th and another 10-25 cm tonight accompanied by SW winds leading to storm slab formation. The Dec3  surface hoar layer will be down 60cm if this snow arrives. It warrants careful investigation.
A warm storm may translate to rain at lower elevations on an already warm snowpack. Loose wet condition is possible but will be short lived as freezing levels drop.
30 - 50 cm's of new snow is slowly settling into a cohesive slab. This slab will be most reactive below 2000m where it overlies the Dec. 3rd surface hoar or facets, especially on Northerly aspects or on steeper sheltered glades.
20- 50 cm's of new snow is slowly settling into a cohesive slab. It will be most reactive in deeper snowpack areas where there is more than 30 cm's of new snow and below 2000m where it overlies the Dec. 3rd surface hoar or facets.
The Dec 2nd surface hoar / crust layer has reached critical load. Expect the storm slab to be reactive to both human and natural triggering.
There is plenty of loose, unconsolidated snow available to sluff around you. Be aware that it can easily accumulate to a critical load and trigger underlying slabs, especially the Dec 2 surface hoar / crust layer.
Recent storm snow plastered to steep rocky terrain will want to shed, particularly on solar aspects below 1500m.
The storm snow has reached critical threshold (~30cm) on top of the Dec 3 surface. The trick is, it is located in sporadic locations across the forecast region. Be increasingly suspicious of steep open glades on shaded aspects at treeline and below.
30- 70 cm's of new snow is settling into a cohesive slab. It will be most reactive where there is more than 30 cm of new snow and below 2000m where it overlies the Dec. 3rd surface hoar or facets, found in sheltered terrain or northerly aspects,.
A 50-100cm thick slab overlies touchy surface hoar below treeline, and sun crust in the alpine. The surface hoar layer become more reactive at lower elevations. Expect the storm slab to be easy to trigger and capable of resulting in large avalanches.
40-70cm of storm snow has fallen over the week, now settled into a slab overlying a dangerous layer of surface hoar below treeline. Treat all slopes below treeline with suspicion until you can rule out this weak layer.
40-70cm of storm snow has fallen over the week, now settled into a slab overlying a dangerous layer of surface hoar below treeline. Treat all slopes below treeline with suspicion until you can rule out this weak layer.
A 50-100cm thick slab overlies touchy surface hoar below treeline, and sun crust in the alpine. The surface hoar layer becomes more reactive at lower elevations, and where it exists the storm slab will be easy to trigger.
A 30-45cm slab is forming over a dangerous layer of surface hoar below 1900m. Treat all steep open slopes below treeline with suspicion until you can rule out this weak layer.
A 30-45cm slab is forming over a dangerous layer of surface hoar below 1900m. Treat all steep open slopes below tree line with suspicion until you can rule out this weak layer.
A 70-90cm slab sits on a suncrust on steep solar aspects and preserved surface hoar at and below treeline. This slab is well formed in areas influenced by strong winds. This layer is becoming less reactive in tests, but remains triggerable by skiers.
Although the Dec3 layer down 60cm has not been associated with any recent avalanche activity, it is still a concern, particularly in sheltered open terrain below treeline. If you find this layer in your travels, please let us know.
A 30-40cm soft slab sits over the Dec 3 surface hoar in many sheltered locations below 2000m. Continue to treat all steep open slopes below treeline with suspicion until you can rule out this weak layer.
A 30-40cm soft slab sits over the Dec 3 surface hoar in many sheltered locations below 2000m. Continue to treat all steep open slopes below tree line with suspicion until you can rule out this weak layer.
80-100cm of storm slab sits on top of the Dec 2 persistent weak layer. This layer is in the form of surface hoar at and below treeline and suncrust on solar aspects in the alpine. The layer is producing hard results on field tests yesterday at 2100m.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Forecasters will continue to monitor the break-down of this interface cautiously.
A 30-40cm soft slab sits over the Dec 3 surface hoar in an elevation band between 1700 and 2150m. Continue to treat all steep open slopes below treeline with suspicion until you can rule out this weak layer.
A 30-40cm soft slab sits over the Dec 3 surface hoar in many sheltered location between 1700m and 2150m. Continue to treat all steep open slopes below tree line with suspicion until you can rule out this weak layer.
80-100cm of  settling snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below treeline and suncrust on solar aspects treeline to alpine. The layer is producing moderate-hard results on field tests yesterday at 2000m.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Forecasters will continue to monitor the break-down of this interface cautiously.
A 30-40cm soft slab sits over the Dec 3 surface hoar in an elevation band between 1700 and 2150m. Continue to treat all steep open slopes below treeline with suspicion until you can rule out this weak layer.
A 40 -50cm soft slab sits over the Dec 3 surface hoar in many sheltered location between 1500 m and 1850m. Continue to treat all steep open slopes below tree line with suspicion until you can rule out this weak layer.
80-100cm of settling snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below tree line and sun crust on solar aspects tree line to alpine. The layer has produced moderate-hard results in field tests.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
A 30-40cm soft slab sits over the Dec 3 surface hoar in an elevation band between 1700 and 2150m. Continue to treat all steep open slopes below treeline with suspicion until you can rule out this weak layer.
A 40 -50cm soft slab sits over the Dec 3 surface hoar in many sheltered location between 1500 m and 1850m. Continue to treat all steep open slopes below tree line with suspicion until you can rule out this weak layer.
80-100cm of settled snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below tree line and sun crust on solar aspects tree line to alpine. The layer has produced moderate-hard results in field tests.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
A 30-40cm soft slab sits over the Dec 3 surface hoar in an elevation band between 1700 and 2150m. Continue to treat all steep open slopes below treeline with suspicion until you can rule out this weak layer.
A 40-50cm soft slab sits over the Dec 3 surface hoar in many sheltered location between 1500 m and 1850m. Continue to treat all steep (35+ degree) open slopes below tree line with suspicion until you can rule out this weak layer.
Varying depths of settled snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below tree line and sun crust on solar aspects tree line to alpine. The layer has produced moderate-hard results in field tests.
A 40-50cm soft slab sits over the Dec 3rd surface hoar in many sheltered location between 1500 m and 1850m. Continue to treat all steep (35+ degree) open slopes below tree line with suspicion until you can rule out this weak layer.
A 30-40cm soft slab sits over the Dec 3rd surface hoar in an elevation band between 1700 and 2150m. This slab has facetted out in many areas, but watch out in areas where previous wind may have formed a denser slab above this layer.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
80cm of snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below treeline and sun crust on solar aspects. Although this layer is becoming less reactive, it is still producing sudden results in stability tests.
A 30-40cm soft slab sits over the Dec 3rd surface hoar between 1700 and 2150m. This slab has facetted out in many areas, but be cautious on steep (40+degree) slopes where previous winds may have formed isolated denser slabs above.
A 40-50cm soft slab sits over the Dec 3rd surface hoar in many sheltered location between 1500 m and 1850m. Continue to treat all steep (35+ degree) open slopes below tree line with suspicion until you can rule out this weak layer.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
Watch for sluffing in gullys and couloirs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">These may be triggered by wind or humans, and run fast on old crusts where they are near the surface.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
80cm of snow sits on top of the Dec 2 persistent weak layer, which is surface hoar at and below treeline and sun crust on solar aspects. Although this layer is becoming less reactive, it may awaken with ongoing incremental snow loading.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
A 30-50cm slab sits over the Dec 3 surface hoar that can be found in isolated areas between 1700 and 2150m. While this slab has facetted out in many areas, be cautious in aggressive terrain or in wind affected areas where the slab may retain strength
A 30-50cm slab sits over the Dec 3 surface hoar that can be found in isolated areas between 1500 and 1800m. While this slab has facetted out in many areas, be cautious in aggressive terrain or in wind affected areas where the slab may retain strength
80cm+ of settled snow sits on top of the Dec 2nd interface.  This interface consists of surface hoar at and below treeline and suncrust on steeper solar aspects in the alpine.
The slab above this layer has facetted out in many areas which has lead to a decrease in triggering however tests continue to produce significant shears. Be cautious in aggressive terrain or in wind affected areas where the slab may retain strength.
The slab above this layer has facetted out in many areas which has lead to a decrease in triggering however tests continue to produce significant shears. Be cautious in aggressive terrain or in wind affected areas where the slab may retain strength.
The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.
80cm+ settled snow sits on top of the Dec 2nd interface. This layer consists of decomposing surface hoar at and below treeline and suncrusts on steep solar aspects in the alpine.
Loose dry sloughing of storm snow can be expected in very steep terrain. This is more of a concern in steep confined gully features.
The Dec3 interface down 50cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
The slab above this layer has not been very reactive recently however snow pack tests continue to produce sudden shears in some areas. Dig down to identify and test this layer before committing to in steep, open or convex terrain below tree line.
The slab above this layer has not been very reactive recently however snow pack tests continue to produce sudden shears in some areas. Dig down to identify and test this layer before committing to in steep, open or convex terrain below tree line.
80cm+ settled snow sits on top of the Dec 2nd interface. This layer consists of decomposing surface hoar at and below tree line and sun crusts on steep solar aspects in the alpine.
Loose dry sloughing of storm snow can be expected in very steep terrain. This is more of a concern in steep confined gully features.
The Dec3 interface down 50cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
The slab above this layer has not been very reactive recently. Snow pack tests produce shears in the moderate to hard range. Dig down to identify and test this layer before committing to in steep, open or convex terrain below tree line.
The Dec 3 surface hoar is 40-70 cm down and producing variable shears in the moderate to hard range. Dig down to identify and test this layer before committing to&nbsp; steep, open or convex terrain below tree line.
With 45cm of low density snow expect sluffing in steep terrain. Be aware of where other people are, regroup in safe spots, and avoid exposure to terrain traps.
The Dec3 interface down 60cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
The slab above this layer has not been very reactive recently. Snow pack tests produce shears in the moderate to hard range. Dig down to identify and test this layer before committing to in steep, open or convex terrain below tree line.
The slab above this layer has not been very reactive recently. Snow pack tests produce shears in the moderate to hard range. Dig down to identify and test this layer before committing to in steep, open or convex terrain below tree line.
With 50cm of low density snow expect sluffing in steep terrain. Be aware of where other people are, regroup in safe spots, and avoid exposure to terrain traps.
The Dec3 interface down 60cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
The slab above the Dec 3 surface hoar layer has not been very reactive recently. Snow pack tests produce shears in the moderate to hard range. This is mostly a concern in areas near the divide with a deeper snowpack and more snow over the weakness.
The slab above the Dec 3 surface hoar layer has not been very reactive recently. Snow pack tests produce shears in the moderate to hard range and the weakness appears to be strengthening.
Expect loose snow sluffing in steep to extreme terrain. Plan to regroup in safe locations and avoid exposure to terrain traps.
The slab above the Dec 3 surface hoar layer has not been very reactive recently. Snow pack tests produce shears in the moderate to hard range. This is mostly a concern in areas near the divide with a deeper snowpack and more snow over the weakness.
The slab above the Dec 3 surface hoar layer has not been very reactive recently. Snow pack tests produce shears in the moderate to hard range. This is mostly a concern in areas near the divide with a deeper snowpack and more snow over the weakness.
With 50cm of recent storm snow expect sluffing in steep to extreme terrain.  Avoid terrain trap features and be aware where people are above and below you.
The slab above the Dec 3 surface hoar layer has not been very reactive recently. Snow pack tests produce shears in the moderate to hard range. This is mostly a concern in areas near the divide with a deeper snowpack and more snow over the weakness.
Wind effect will make this problem less widespread, however sluffing will remain a concern in steep sheltered terrain
A large natural slab avalanche was observed last wednesday, this may have released at a buried crust from early December. For now, it is unclear if this will remain an isolated event, or if this layer is becoming more sensitive to loads.
Loose dry snow sluffs can be expected in very steep terrain. This could be an issue in steep gullies and terrain traps.
Loose dry snow sluffs can be expected in very steep terrain. This could be an issue in steep gullies and terrain traps.
Small sluffs may trigger previous windslabs
A large natural slab avalanche was observed last wednesday, this may have released at a buried crust from early December. For now, it is unclear if this will remain an isolated event, or if this layer is becoming more sensitive to loads.
All that loose, dry snow means great skiing, but expect it to sluff in steep terrain. This could be an issue in steep gullies and terrain traps, where your sluff can accumulate and become deeper.
Small sluffs may trigger previous windslabs.
Solar triggered sluffs entraining loose snow in steep solar facing gulleys.
Ice climbers and skiers be mindful of loose snow avalanches to size 2 in steep solar terrain. Several avalanches have been observed with warming temperatures and sun affect.
Ice climbers and skiers be mindful of loose snow avalanches to size 2 in steep solar terrain. Several avalanches have been observed with warming temperatures and sun affect.
Ice climbers and skiers be mindful of loose snow avalanches to size 2 in steep cliffs/gullied terrain. The sun is triggering moist snow sluffs that entrain the dry facets or moist surface snow in its path.
Ice climbers and skiers be mindful of loose snow avalanches to size 2 in steep solar terrain. Several avalanches have been observed with warming temperatures and sun affect.
Solar triggered sluffs entraining loose snow in steep solar facing gulleys.
Watch for warm temperatures and clear skies on Saturday to destabilize the surface snow on sunny slopes.
Extra caution is advised if forecast snowfall amounts are exceeded.
Watch for sluffing on steep slopes where the loose facetted snow moves easily. Be cautious where gullies may funnel the sluff, making it bigger, or in areas where a sluff could knock you over a cliff.
Loose dry weak faceted surface snow may be prone to sluffing in steep to very steep terrain.  Terrain features such as gullies can focus the volume of sluffs making it a potential problem for riders and skiers.
Sluffing of the weak facetted surface snow can be expected out of steep terrain.  This is more of a concern in locations where features concentrate the volume of sluffs such as gully features.  Use caution where sluffs have higher consequence.
Up to 20cm of new snow overlies the weak facetted Jan 4 layer, expect this new snow to sluff in steep terrain and run fast. This a concern around terrain traps like gullies or steep terrain where a fall could have consequences.
Forecasters could easily trigger the new surface snow in steep features today below treeline. The new snow entrained old facets. Skiers remember to manage sluffs and ice climbers watch you don't get knocked off your feet.
30cm of new snow may bond poorly to the old snow surface.&nbsp; Currently new snow is low density but with rising temps and forecasted wind gusts a slab could build.
Up to 20cm of new snow overlies the weak facetted Jan 4 layer, expect this new snow to sluff in steep terrain and run fast. This a concern around terrain traps like gullies or steep terrain where a fall could have consequences.
The new snow and surface facets will sluff easily in very steep terrain. Skiers remember to manage the sluffs, and ice climbers watch you don't get knocked off your feet.
New snow and surface facets will sluff easily in very steep terrain. Skiers remember to manage the sluffs, and ice climbers watch you don't get knocked off your feet. Below treeline facet sluffs will be most prevalent in steep areas such as Kootenay.
25-35cm of new, low density snow is being moved around by the winds at ridge-top. This is forming a slab in lee features, which will likely have a poor bond to the underlying interface of surface hoar, sun crust, or facets.
Up to 35cm of new snow overlies the weak facetted Jan 4 layer. Expect this new snow to sluff in steep terrain and run fast. This is a concern around features like gullies or steep terrain where a fall could have consequences.
The new snow and surface facets will sluff easily in very steep terrain. Skiers remember to manage the sluffs, and ice climbers watch you don't get knocked off your feet.
New snow and surface facets will sluff easily in very steep terrain. Skiers remember to manage the sluffs, and ice climbers watch you don't get knocked off your feet. Below treeline facet sluffs will be most prevalent in steep areas such as Kootenay.
Small loose dry avalanches should be expected in steep terrain.  May entrain significant snow in gulley features.
Where wind-affected, touchy soft slabs are forming. At lower elevations, mild temp's are settling the new snow into soft slabs as well. At all elevations, these thin slabs may pick up speed quickly, pushing folks into terrain traps.
Up to 35cm of new snow overlies the weak facetted Jan 4 layer. Expect this new snow to sluff in steep terrain and run fast. Be wary of terrain traps lingering below you.
Small loose dry avalanches should be expected in steep terrain. May entrain significant snow in gulley features.
Storm slabs will continue to grow through the weekend.
New snow and surface facets will sluff easily in very steep terrain as a result of small human or natural triggers. These sluffs can run until the slope angle decreases and may have high consequence for skiers or climbers in large or confined terrain
New snow and surface facets will sluff easily in very steep terrain as a result of small human or natural triggers. These sluffs can run until the slope angle decreases and may have high consequence for skiers or climbers in large or confined terrain
Storm slabs continue to develop as warm temps, wind and snow settlement turn the upper 40cm into a cohesive layer. Slabs are most developed in exposed alpine ares. This layer is easily triggered where it sits on preserved surface hoar crystals.
New snow and surface facets will sluff easily in very steep terrain. These sluffs may have high consequence for skiers or climbers in large or confined terrain.
New snow and surface facets will sluff easily in very steep terrain, especially in thin snowpack areas.&nbsp; These sluffs may have high consequence for skiers or climbers in large or confined terrain.
Small loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
Soft surface snow will readily sluff from any steep terrain not already scoured by wind. Wind gusts or skier traffic may trigger these.
New snow and surface facets will sluff easily in steep terrain (40+ degrees). These sluffs may have high consequence for skiers or climbers in large or confined terrain. Manage your exposure closely in order to control your risk.
New snow and surface facets will sluff easily in steep terrain (40+ degrees). These sluffs may have high consequence for skiers or climbers in large or confined terrain. Manage your exposure closely in order to control your risk.
Storm slabs continue to develop as warm temps, wind and snow settlement turn the upper 40cm into a cohesive layer. Slabs are most developed in exposed alpine ares. This layer was easily triggered in stability tests below treeline on surface hoar.
Storm slabs continue to develop as warm temps, wind and snow settlement turn the upper 50cm into a cohesive layer. Slabs are most developed in exposed alpine ares. This layer was easily triggered in stability tests below treeline on surface hoar.
Small loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">New snow and surface facets will sluff easily in steep terrain (40+ degrees). These sluffs may have high consequence for skiers or climbers in large or confined terrain. </span><span class="s_2823317B">Manage your exposure closely in order to control your risk.</span><span class="s_AA239
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">New snow and surface facets will sluff easily in steep terrain (40+ degrees). These sluffs may have high consequence for skiers or climbers in large or confined terrain. </span><span class="s_2823317B">Manage your exposure closely in order to control your risk.
Slabs continue to develop as warm temps, wind and settlement turn the upper 50cm into a cohesive layer. Below treeline the recent storm snow was easily triggered in stab tests on surface hoar.  Soft slabs are present in alpine areas exposed to wind.
New snow and surface facets will sluff easily in steep terrain (40+ degrees). These sluffs may have high consequence for skiers or climbers in large or confined terrain.
Small loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">New snow and surface facets will sluff easily in steep terrain (40+ degrees). These sluffs may have high consequence for skiers or climbers in large or confined terrain. </span><span class="s_28233
Below the light surface snow a soft slab sits on a touchy layer (see details tab). This layer is variable and hard to predict. It has been easily triggered where a sun crust is buried, but may also become more reactive at lower elevations.
Expect increased natural activity with forecast of wind, warming temperatures, and light snow.  New snow and surface facets will sluff easily in steep terrain (40+ degrees) and run far..  Avoid exposure to steep overhead or gullied terrain (Dennis).
Expect increased natural activity with forecast of wind, warming temperatures, and light snow. New snow and surface facets will sluff easily in steep terrain (40+ degrees) and run far.. Avoid exposure to steep overhead or gullied terrain.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
The incoming storm has the potential to add significant load to a variable and hard to predict weak layer (see details tab).&nbsp; It has been easily triggered where a sun crust is buried, but is also expected to become more reactive at lower elevations.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
New snow over facets have been waiting for a trigger to start sliding, and this can be expected with warmer temperatures and wind Friday.  Ice climbers should especially take note of this for areas like Mount Dennis and Mount Stephen.
Expect increased natural activity with forecast of wind, warming temperatures, and light snow. New snow and surface facets will sluff easily in steep terrain (40+ degrees) and run far. Avoid exposure to steep overhead or gullied terrain.
A weak layer that was buried in early January seems to be gaining strength, but this strength is being put to the test by wind loading, new snow and near-zero temperatures.
The storm is upon us with 15cm snow overnight and another 20cm expected today.  Overloading and failure of the soft slab over the Jan 4th weak layer is expected today resulting in an avalanche cycle.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
With forecasted weather, natural loose snow avalanches may subside, but expect it still to be a problem in steep terrain for skiers/climbers. Touchy cornices developed through the storm are new trigger to consider when assessing overhead terrain.
With forecasted weather, natural loose snow avalanches may subside, but expect it still to be a problem in steep terrain for skiers/climbers. Touchy cornices developed through the storm are new trigger to consider when assessing overhead terrain.
The Jan 4th interface and associated slab were very reactive yesterday. Expect less natural avalanche activity today but continued elevated sensitivity to human triggering on this layer.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
The new surface snow and underlying sugary facets continue to produce impressive sluff avalanches that run a surprising distance in steep terrain. Avoid large or confined terrain features where these events can gather mass and speed.
The new surface snow and underlying sugary facets continue to produce impressive sluff avalanches that run a surprising distance in steep terrain. Avoid large or confined terrain features where these events can gather mass and speed.
The January 4th interface is getting deep enough in the snowpack to be less reactive to skier loads. If storm slabs are triggered the load may be sufficient to wake the Jan 4th up.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
The new surface snow and underlying sugary facets continue to produce impressive sluff avalanches that run powerfully in steep terrain. Avoid large or confined terrain features where these events can gather mass and speed.
The new surface snow and underlying sugary facets continue to produce impressive sluff avalanches that run powerfully in steep terrain. Avoid large or confined terrain features where these events can gather mass and speed.
The settling storm snow is still reactive to skier/riders weight below treeline. In the Alpine windslab has formed from moderate s'rly winds.  With sunny periods forecast today expect the new snow to be more reactive with the sudden solar warming.
The January 4th interface is getting deep enough in the snowpack to be less reactive to skier loads. If storm slabs are triggered the load may be sufficient to wake the Jan 4th up.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
This problem exists in deeper snowpack areas - such as Kootenay Park where slabs have been formed by settled snow overlying the Jan 6 surface hoar layer. Watch out - these are touchy and propagate easily.
This problem exists in deeper snowpack areas - such as Kootenay Park where slabs have been formed by settled snow overlying the Jan 6 surface hoar layer. Watch out - these are touchy and propagate easily.
The January 4th interface is getting deep enough in the snowpack to be less reactive to skier loads. Triggered wind slabs, or larger loads like a group of skiers, may be sufficient to wake the Jan 4th up.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
The new snow is settling into a 15- 40 cm slab above the Jan. 6th surface hoar and facet layer. This layer is most reactive where there is a thicker slab and buried surface hoar (between 1500 and 2000m in Kootenay).
The new snow is settling into a 30- 50 cm slab above the Jan. 6th surface hoar and facet layer. This layer is surface hoar between 1500 and 2000m and facets above and is most reactive where there is buried surface hoar.
The January 4th interface is buried 50-80cm deep; still within range of being triggered by a person. The incremental loading of smaller storms onto this interface makes it a tricky one to predict when/if it will fail.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features. This is a condition of the snowpack being facets.
The new snow is settling into a 20-50 cm slab above the Jan. 6th surface hoar and facet layer. This layer is most reactive where there is a thicker slab and buried surface hoar (between 1500 and 2000m in Kootenay).
The new snow is settling into a 30- 50 cm slab above the Jan. 6th surface hoar and facet layer. This layer is surface hoar between 1500 and 2000m and facets at higher elevations. Pit test indicate that this layer is reactive to skier triggering.
Incremental loading by a series of storms is making a weak layer down 50-80cm an increasing concern. This layer lingers in many areas and is sporadically reactive, making it tricky to assess. When it fails, however, large avalanches are the result.
A new storm slab is building. 30cm of snow over 48hrs at treeline, with another ~15cm forecast, is settling into a slab with mild temps. This slab may be triggered by light loads (like you) and avalanches on this layer may step down to deeper layers.
Colder temps may reduce the potential of these slides but triggering is still possible in steep terrain.
Close to 50 cm of settled snow now overlies the Jan 4 layer of surface hoar and facets. This layer is visible in snow profiles, and tests show moderate, sudden planar shears. Watch for this problem in open glades and slopes near and below treeline.
Close to 50 cm of settled snow now overlies the Jan 4 layer of surface hoar and facets. This layer is visible in snow profiles, and tests show moderate, sudden planar shears. Watch for this problem in open glades and slopes near and below treeline.
Up to 50cm fell in 48hrs and settled into a storm slab rapidly. SW winds will have loaded lee slopes, forming even deeper slabs. This slab may be triggered by light loads (like you) and avalanches on this layer may step down to deeper layers.
A surface hoar layer now down 60-100cm is likely to be touchy after being overloaded by the storm. This layer lingers in many areas and is sporadically reactive, making it tricky to assess. When it fails, however, large avalanches are the result.
Triggering is very likely in steep terrain.
Close to 50 cm of settled snow now overlies the Jan 4 layer of surface hoar and facets. While crusts may hold things together below about 1900m be cautious above this where human triggering is likely and natural activity is quite possible. 
Close to 50 cm of settled snow now overlies the Jan 4 layer of surface hoar and facets. While crusts may hold things together below about 1900m be cautious above this where human triggering is likely and natural activity is quite possible.
This layer is once again primed for triggering thanks to ongoing strong winds. In exposed areas, this layer is a cohesive slab up to 60cm thick. It may be triggered by light loads and avalanches on this layer may step down to deeper layers.
A surface hoar layer now down 60-100cm is likely to be touchy after being overloaded by the storm. This layer lingers in many areas and is sporadically reactive, making it tricky to assess. When it fails, however, large avalanches are the result.
Triggering is very likely in steep terrain. Thursdays' new snow added to this problem in many locations.
30-50 cm of settled snow overlies the Jan 6 layer of surface hoar and facets. This continues to be reactive to both human and explosive triggering with potential for failures to step down into deeper snowpack layers and result in large avalanches.
30-70 cm of settled snow overlies the Jan 6 layer of surface hoar and facets. This continues to be reactive to both human and explosive triggering with potential for failures to step down into deeper snowpack layers and result in large avalanches.
Expect the storm slab to be touchy after another night of moderate S-SW winds.  On lee features and exposed areas the cohesive slab could be upwards of 60cm thick.  If triggered slides may step down to deeper weak layers.
The January 4th interface was recently rapidly overloaded.  This layer is tricky to assess as it is not evenly distributed on the landscape.  It is also only sporadically reactive.  It can be found in many locations 60-100cm down in the snowpack.
30 cm of storm snow from Thursday continues to build into a slab overlying a weak facetted snowpack or decomposed surface hoar layer.
30-60 cm of settled snow overlies the Jan 6 layer of surface hoar and facets. This continues to be reactive to both human triggering with potential for failures to step down into deeper snowpack layers and result in large avalanches.
30-70 cm of settled snow overlies the Jan 6 layer of surface hoar and facets. This continues to be reactive to both human triggering with potential for failures to step down into deeper snowpack layers and result in large avalanches.
The January 4th interface was rapidly overloaded &amp; woke up during last weeks storm. This layer is tricky to assess as it is not evenly distributed on the landscape &amp; sporadically reactive. It can be found in many locations 60-100cm deep.
35 cm of storm snow from Thursday continues to build into a slab overlying a weak facetted snowpack or decomposed surface hoar layer.
30-60 cm of snow overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it is still in the range of human triggering with potential for failures to step down into deeper layers and result in large avalanches.
30-70 cm of snow overlies the Jan 6 layer of surface hoar and facets. Test results on this layer show it is still in the range of human triggering with potential for failures to step down into deeper layers and result in large avalanches.
The Jan 4th interface was rapidly overloaded &amp; woke up during last weeks storm. This layer is tricky to assess as it is not evenly distributed &amp; sporadically reactive. It's down 60-90cm &amp; was still producing whumfs yesterday in the Cannaught drainage
30-70 cm of snow overlies the Jan 6 layer of surface hoar and facets. Test results on this layer show it is still in the range of human triggering with potential for failures to step down into deeper layers and result in large avalanches.
30-60 cm of snow overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it is still in the range of human triggering with potential for failures to step down into deeper layers and result in large avalanches.
This layer is tricky to assess as it's not evenly distributed &amp; sporadically reactive. It's down 60-90 &amp; was still producing whumfs yesterday in the Cannaught drainage. It may be possible to trigger from a thin area or by a large trigger like cornice
30-70 cm of snow overlies the Jan 6 layer of surface hoar and facets. Test results on this layer show it is still in the range of human triggering with potential for failures to step down into deeper layers and result in large avalanches.
30-60 cm of snow overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but the potential for wide propagation remains.
Since last weeks storm ~40cm of snow is forming into a storm slab. With more snow expected over the next few days this slab is thick enough to be a concern. In many areas it is still loose however in some areas tests indicate this slab is triggerable
The Jan 4th layer is a lingering concern, and it is a tricky to assess. Where it exists it is down 60-90cm, but it is not evenly distributed &amp; is sporadically reactive. It has been triggered recently by cornices, resulting in large avalanches.
An average of 30-60 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but the potential for wide propagation remains.
An average of 40-70 cm overlies the Jan 6 layer of surface hoar and facets. Test results on this layer show it is still in the range of human triggering with potential for failures to step down into deeper layers and result in large avalanches.
Small loose dry avalanches are running naturally out of steep terrain.
~40cm of light snow remains loose in many areas and sluffs easily. As the storm progresses, it is expected settle into a slab with added snow, mild temps and SW winds. Watch for signs like &quot;upside-down&quot; feeling snow or cracking that indicate a slab.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The Jan 4th layer is a lingering concern, and it is a tricky one to assess. Where it exists it is down 80-120cm, but it is not evenly distributed &amp; is sporadically reactive. It has been triggered recently by cornices, resulting in large avalanches.
An average of 30-60 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
An average of 30-60 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
50cm of storm snow is settling into a slab with mild temps, added precip and wind.  Field trip to Lookout notch yesterday confirmed this with upside down feeling snow along with cracking of the surface layer.
The Jan 4th layer is a lingering concern down 80-120cm in the snowpack.  it is not evenly distributed and is sporadically reactive.  Added load of storm slabs or cornice fall when triggered may provide sufficient load to wake this layer up.
An average of 30-60 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
An average of 30-60 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
New snow and extreme Westerly winds have and built Wind Slabs in unusual areas: these may include lower than usual in start zones, and in typically wind-sheltered terrain.
This problem is expected to develop early next week with warm temperatures. It may exist on all aspects, however solar aspects will be the most suspect.
Upwards of 50cm of storm snow will be settling into a denser slab over low density snow that fell early last week.  The storm slab can be expected to shear in unsupported terrain.
The Jan 4th interface is a lingering concern.  It can be found down 80-120cm in the snowpack.  It is not evenly distributed and sporadically reactive.  Storm slab failure or cornice fracture may provide the load to wake this layer up.
An average of 40-100 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
Expect any wet slide will have the potential to trigger preserved persistent slabs below. These slabs may take the season snowpack with it and will be notably destructive. South facing ice features could become very dangerous to an unaware climber
An average of 40-80 cm overlies the Jan 6 layer of surface hoar, facets and sun crust. Test results on this layer show it has become stubborn to trigger, but potential for wide propagation remains. The new snow will increase the likelihood of this.
recent storm snow and wind deposits settling over a layer of lower density decomposing precipitation particles
Persistent weak layer now buried around 100cm is still failing suddenly in snowpack stability tests a may potentially result in a large avalanche if triggered
Expect this problem to produce avalanches on Tuesday, and avoid exposure to avalanche terrain as these will be large avalanches with potentially significant consequences.
Expect wet snow sluffs and rockfall due to the wet snow - most problematic in low elevation gullies and all south and west facing terrain. Ice climbers should be particularly alert for this.
Expect this problem to produce avalanches on Tuesday, and avoid exposure to avalanche terrain as these will be large avalanches with potentially significant consequences.
Expect wet snow sluffs and rockfall due to the wet snow - most problematic in low elevation gullies and all south and west facing terrain. Ice climbers should be particularly alert for this.
Recent storm snow and wind deposits are settling rapidly over a layer of lower density decomposing precipitation particles. With the forecasted warm temps today this slab could become more reactive.
With rising temps expect to seethe surface snow becoming moist and running loose, especially from rocky areas &amp; cliffs or South facing slopes. This may be enough of a trigger to step down to weaker layers
Persistent weak layer now buried around 100cm is still failing suddenly in snowpack stability tests a may potentially result in a large avalanche if triggered
This problem has not presented itself yet, but may if temperatures remain above freezing overnight.
Previously formed slabs now comprise the upper and mid-pack in many locations. They can rest on weak facets.
These large avalanches have potentially significant consequences. Warm temperature coinciding with steep and shallow ares are a combination to avoid tomorrow.
With freezing levels rising to 1900m tomorrow the possibility of loose wet avalanches still exists. These could potentially occur on steep south facing rocky terrain.
Many explosive triggered avalanches today throughout Banff, Yoho and Kootenay stepped down to this layer resulting in large destructive avalanches. Avalanche terrain that has not yet slid should be suspect.
Loose wet activity will be less active than on Tuesday, but with freezing levels still forecast to rise to ~2000m it is still a good idea to stay out of steep south facing terrain and rock gullies with overhead exposure.
The Jan 4 persistent weak layer now buried around 100cm dn is still sporadically failing in snowpack stability tests. If this layer awakens the result would be large and destructive.
Large avalanches are occurring daily right now. Best to avoid most avalanche start zones unless there is evidence of previous avalanches having occurred. Conditions are dangerous so be careful in your route selection.
With freezing levels rising to 1700m tomorrow the possibility of loose wet avalanches still exists. These will occur on steep south facing rocky terrain.
Large avalanches are occurring daily right now. Best to avoid most avalanche start zones unless there is evidence of previous avalanches having occurred. Conditions are dangerous so be careful in your route selection.
With freezing levels rising to 1700m tomorrow the possibility of loose wet avalanches still exists. These will occur on steep south facing rocky terrain.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Warm temperatures and poor overnight recovery have promoted widespread natural activity at lower elevations during the late afternoon.
The Jan 4 persistent weak layer now buried around 100cm down is still sporadically failing in snowpack stability tests. If this layer awakens the result would be large and destructive.
Widespread natural and explosive triggered avalanche activity on this layer in the past few days. In thinner areas, avalanches are scrubbing down to ground. With the cooling temps, this should become less reactive, but is still worthy of respect.
If the forecasted overnight freeze and cloudy skies materialize, this may not be an issue. But if the temperatures are warm and the sun is shining, watch out!
Widespread natural and explosive triggered avalanche activity on this layer in the past few days. In thinner areas, avalanches are scrubbing down to ground. With the cooling temps, this should become less reactive, but is still worthy of respect.
If the forecasted overnight freeze and cloudy skies materialize, this may not be an issue. But if the temperatures are warm and the sun is shining, watch out!
Cloudy conditions on Friday should reduce this problem however caution is still advised as warm temperatures below treeline are expected to continue on Friday.&nbsp; Best to avoid ice climbs on south to west aspects until the weekend.
The Jan 4 persistent weak layer now buried around 100cm down is still sporadically failing in snowpack stability tests. If this layer awakens the result would be large and destructive.
Widespread natural &amp; explosive triggered avalanches on this layer in the past week. In thinner areas, avalanches are scrubbing down to ground. With the cooling temps, this should become less reactive, but is still a concern for skier triggering.
Widespread natural &amp; explosive triggered avalanches on this layer in the past week. In thinner areas, avalanches are scrubbing down to ground. With the cooling temps, this should become less reactive, but is still a concern for skier triggering.
The Jan 4 persistent weak layer now buried around 100cm down is still sporadically failing in snowpack stability tests. If this layer awakens the result would be large and destructive.
Numerous reports of avalanches triggered on the Jan 6 layer over the last 5 days (less reactive below treeline).  In thinner areas, isolated avalanches have been seen to scrub to ground.&nbsp; Less natural activity noted today due to cooler temperatures.
The Jan. 6 surface hoar/facets down an average 75cm is still of concern in this area.  Recent natural activity such as a size 3 in Emerald Lake slide path Thursday prove this.  Natural activity has slowed in the last 24 hours due to cooler temps.
Windslabs are building in isolated below treeline locations. Alpine is experiencing some intense transport as well. Caution on cross loaded gullies and steep lee aspects.
50cm of storm snow sits on isolated pockets of surface hoar and a curst on solar aspects.  Warm temps at low elevations and strong southerly winds have encouraged slab development. Stability tests show that this layer susceptible to skier triggering.
Windslabs are building in isolated below treeline locations. Alpine is experiencing some intense transport as well. Caution on cross loaded gullies and steep lee aspects.
Numerous reports of avalanches triggered on the Jan 6 layer over the last 5 days (less reactive below treeline). In thinner areas, isolated avalanches have been seen to scrub to ground. Less natural activity noted today due to cooler temperatures.
Numerous reports of avalanches triggered on the Jan 6 layer over the last week (less reactive below treeline). With additional loading expected this week, more activity on this layer would not be surprising.
With up to 70cm of new snow at treeline and strong gusty winds over the last few days, expect avalanche conditions to be widespread. Human triggering is likely.
50-100 cms of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last 5 days. In thinner areas, isolated avalanches have scrubbed to ground.
Strong winds have redistributed storm snow and wind slab can be found at all elevations. Caution on cross loaded gullies and lee aspects.
60-100 cms of snow overlies the Jan 6th layer of surface hoar, sun crust and facets and there have been numerous avalanches and close calls on this layer over the last week. Snowpack tests are giving moderate to hard sudden results on this layer.
Skiers/boarders were triggering the storm slab yesterday. With an additional 15cm overnight and strong winds, this slab now packs a little more punch.
60-130 cm of snow overlies the Jan 6th layer of surface hoar, sun crust and facets and there have been many avalanches on this layer over the last week. Snowpack tests are giving hard sudden planar results and it has been less reactive below treeline
50-100 cms of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last 5 days show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
The storm slab will be a little more touchy once temp's warm up later in the day. It isn't the time to charge into aggressive terrain.
50-100 cms of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last 5 days show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">The storm slab is settling, but a couple layers within the new snow show the </span><a href="https://www.facebook.com/ParksMountainSafety/videos/vb.145133538869977/942661439117179/?type=2&amp;theater" target="_blank"><span class="s_9255B882">potential for step-down</span></a><span class="s_AA239A9B"> to lower layers if a slab is triggered.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last week show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
60-130 cm of snow overlies the Jan 6th layer of surface hoar, sun crust and facets and there have been many avalanches on this layer over the last week. Snowpack tests are giving hard sudden planar results and it has been less reactive below treeline
New, touchy storm slabs are forming with ongoing snowfall and wind-loading. On steep slopes, especially areas exposed to wind, expect slabs to be easily triggered. While they aren't very deep (yet) they move fast and can accumulate in terrain traps.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last week show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
60-130 cm of snow overlies the Jan 6th layer of surface hoar, sun crust and facets and there have been many avalanches on this layer over the last week. Snowpack tests are giving hard sudden planar results and it has been less reactive below treeline
Touchy storm slabs have formed in some areas. On steep slopes, especially ridgecrests, roll-overs and areas exposed to wind, expect slabs to be easily triggered. These soft slabs move fast and can accumulate in terrain traps.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous reports of avalanches triggered on this layer over the last 24 hours show that it is active. In thinner areas, isolated avalanches have scrubbed to ground.
Sensitive storm slabs have recently formed in the forecast area. Ridge crests, convexities, steep features, wind and SOLAR exposed terrain are locations of particular concern. Expect these slabs to be easily triggered.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous avalanches triggered on this Saturday. In thinner areas, many of these avalanches have scrubbed through the facets to the ground.
Storm slabs may be sensitive to human triggering given the right terrain feature.&nbsp; Steep planar slopes should be investigated before jumping in. Avoid unsupported or convex terrain.
Feb 10 interface lingers and may become reactive given prolonged sun or added load such as cornice fall or slab avalanche. 
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous avalanches have been triggered on this layer recently. In thin snow pack areas, many of these avalanches have stepped down to the ground.
Storm slabs may be sensitive to human triggering given the right terrain feature. Steep planar slopes should be investigated before jumping in. Avoid unsupported or convex terrain.
Feb 10 interface lingers and is becoming difficult to forecast. In some areas there is surface hoar on a crust which is a good recipe for bad avalanches. It may become reactive given prolonged sun or added load such as cornice fall or slab avalanche
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous avalanches have been triggered on this layer in the last week. In thin snow pack areas, some of these avalanches have stepped down to the ground.
Loose wet avalanches, especially in the later afternoon, are possible on south and westerly aspects.
Storm slabs are generally gaining strength but may still be sensitive to human triggering given the right terrain feature. Steep planar slopes should be investigated before jumping in. Avoid unsupported or convex terrain.
Feb 10 interface lingers and is becoming difficult to forecast. In some areas there is surface hoar on a crust which is a good recipe for bad avalanches. It may become reactive given prolonged sun or added load such as cornice fall or slab avalanche
Loose wet avalanches, especially in the later afternoon with warm sunny skies, are possible on south and westerly aspects. Probability increases with sun.
Relatively high freezing levels and the strong effects from the sun will create loose wet snow avalanches on solar aspects in the afternoon.
50-100 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. Numerous avalanches have been triggered on this layer in the last week. In thin snow pack areas, some of these avalanches have stepped down to the ground.
Relatively high freezing levels and strong solar inputs will create loose wet snow avalanches in the afternoon.
Feb 10 interface lingers and is becoming difficult to forecast. In some areas there is surface hoar on a crust which is a good recipe for bad avalanches. It may become reactive given prolonged sun or added load such as cornice fall or slab avalanche
60-130 cm of snow overlies the Jan 6th layer of surface hoar, sun crust and facets and there have been many avalanches on this layer over the last week. Snowpack tests are giving hard sudden planar results and it has been less reactive below treeline
Loose wet avalanches, especially in the later afternoon with warm sunny skies, are possible on south and westerly aspects. Probability increases with sun.
Generally the snowpack is poor throughout the BYK region. Facets, surface hoar and suncrust all exist at different levels in the snowpack and in different locations. Use caution on any large slopes that have not yet avalanched; good chance they will.
t-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_2823317B">Ice climbers!</span><span class="s_AA239A9B"> Get out of any steep gully features by noon, as we expect wet slush to be running down low and mid-elevation gullies by the afternoon. Start early!
Sun and warm temps will create wet, slush like avalanches in gullies on Friday. For example areas like Guinness Gully or Pilsner will be a good place to avoid in the afternoon.
Feb 10 interface lingers and is becoming difficult to forecast. In some areas there is surface hoar on a crust which is a good recipe for bad avalanches. It may become reactive given prolonged sun or added load such as cornice fall or slab avalanche
Generally the snowpack is poor throughout the BYK region. Both the Feb 11 and Jan 6 layers produce significant shears in tests and human triggering of large avalanches that step down to the ground is a real possibility.
The Feb 10th layer is buried 50-90cm. In some areas there is surface hoar on a crust, creating a dangerous combination. Sensitivity to triggering is variable among terrain features and careful consideration is required. Dig down and test this layer.
Generally the snowpack has a weak midsection throughout the BYK region. Both the Feb 11 and Jan 6 layers produce significant shears in tests. Human triggering of large avalanches that&nbsp; could step down to the ground is a real possibility.
The Feb 10th layer is buried 50-90cm. In some areas there is surface hoar on a crust, creating a dangerous combination. Sensitivity to triggering is variable among terrain features and careful consideration is required. Dig down and test this layer.
Generally the snowpack has a weak midsection throughout the BYK region. Both the Feb 11 and Jan 6 layers produce significant shears in tests. Human triggering of large avalanches that could step down to the ground is a real possibility.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">30cm of storm snow sits on a strong crust and surface hoar.  This low density slab has the potential to gain alot of mass with a widespread crust as the bed surface. </span><span class="s_2823317B">Afternoon sun will add to the likelihood of triggering
Generally the snowpack has a weak midsection throughout the BYK region. Both the Feb 11 and Jan 6 layers produce significant shears in tests. Human triggering of large avalanches that could step down to the ground is a real possibility.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">30cm of storm snow sits on a strong crust and surface hoar which is poorly bonded in some locations. Field teams experienced whumphing on this layer yesterday. This low density slab has potential to gain alot of mass with a crust as the bed surface</span><span class="s_28233
Generally the snowpack has a weak midsection throughout the BYK region. Both the Feb 11 and Jan 6 layers produce significant shears in tests. Human triggering of large avalanches that could step down to the ground is a real possibility.
40cm of storm snow sits on a strong crust and surface hoar which is poorly bonded in some locations. Field teams experienced whumphing on this layer yesterday. This low density slab has potential to gain alot of mass with a crust as the bed surface
The snowpack is generally weak throughout the BYK region, except in areas of deeper (thus stronger) snow. Avoid most steep terrain, and watch for signs of instability such as whumping and cracking. Things are improving, but slowly.
~50cm of snow is settling into a soft slab and sits on a crust on solar aspects and surface hoar. If triggered it will likely run far &amp; fast especially with the crust as a bed surface. Expect it to sluff easily in areas where it hasn't formed a slab.
The snowpack can still be weak in the BYK region, except in areas of deeper (thus stronger) snow. Avoid steep unsupported terrain, and watch for signs of instability such as whumphing and cracking. The snowpack still slowly improving.
The Feb 27 crust/ surface hoar layer is down 50-60cm and is producing moderate results in stability tests.&nbsp; When triggered, this layer could propagate into a large avalanche.&nbsp; Dig down and test this layer before committing. It is easy to identify.
The Feb 27 crust/ surface hoar layer is down 60cm and produces sudden results in stability tests. When triggered, this layer could propagate into a large avalanche. With warming temperatures this layer could fail as a moist slab at lower elevations.
The Feb 27 crust/surface hoar layer down 70cm produces sudden results in stability tests.  If triggered this layer could propagate into a large avalanche.  Continued warm temperatures could see this layer failing as a moist slab at lower elevations.
The February 27th interface is now down 70cm and was recently producing sudden planar results on field tests.  If triggered large avalanches could result.  Solar input today could increase this layer's sensitivity.
Loose wet avalanches can be anticipated on solar aspects in the afternoon.
Daytime heating may cause loose wet avalanches at lower elevations. This activity will increase when the sun comes out during the next few days. Minimize your exposure to steep solar aspects when things heat up.
The February 27th interface is now down 70cm and is producing sporadic sudden planar results on field tests in sheltered areas. If triggered large avalanches could result. Daytime heating and solar input today could increase this layer's sensitivity.
The Feb 27th interface is now down 60cm &amp; is producing sudden planar results on a crust on S though W aspects. Test results on NE aspects showed stubborn results. Wind-loading and solar input will increase it's sensitivity.
Warm temperatures at lower elevations and the potential for some light flurries or rain showers may create conditions for loose wet avalanches in steep gullied terrain below treeline. Ice climbers in particular should be aware of this problem.
The Feb 27th interface is down 60cm and is producing sudden planar results on a crust on S though W aspects. Test results on NE aspects showed stubborn results. Wind-loading will increase it's sensitivity. Wet slabs below treeline from rain.
The Feb 27th interface is down 80cm and is producing sudden planar results on a crust on S though W aspects and surface hoar in isolated spots. This layer has been active recently, triggered by small wind slab avalanches and cornice falls.
Feb 27 interface is down 80cm+ and continues to give sudden planar results in field tests. The layer consists of crusts on solar aspects and decomposing surface hoar in isolated locations.
Feb 27 interface is down 80cm+ and continues to give sudden planar results in field tests. The layer consists of crusts on solar aspects and decomposing surface hoar in isolated locations.
Feb 27 interface is down 80cm+ and continues to give sudden planar results in field tests. The layer consists of crusts on solar aspects and decomposing surface hoar in isolated locations.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Tests, and recent avalanches in the region, continue to show that a layer down 75 to 100 is </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/RB4%28WB%29%20dn%2075cm.JPG" target="_blank"><span class="s_9255B882">triggerable by light loads</span></a><span class="s_AA239A9B"> (that's you). If triggered this layer is</span><a href="https://www.facebook.com/ParksMountainSafety/videos/vb.145133538869977/957537630962893/?type=2&amp;theater" target="_blank"><span class="s_9255B882"> likely to propagate</span></a><span class="s_AA239A9B"> into large avalanches. This layer is of most concern on solar aspects.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A 30-50cm deep storm slab has formed. It is expected to become increasingly reactive due to the strong solar. In addition, on solar aspects it overlies a sun crust which provides a sliding surface. On lee, N'ly slopes soft windslabs may exist. </span><span class="s_28233
A 30-50cm deep storm slab has formed. It is expected to become increasingly reactive due to the strong solar. In addition, on solar aspects it overlies a sun crust which provides a sliding surface. On lee features, watch for touchy wind slabs.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Tests, and recent avalanches in the region, continue to show that a layer down 75 to 100 is </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/RB4%28WB%29%20dn%2075cm.JPG" target="_blank"><span class="s_9255B882">triggerable by light loads</span></a><span class="s_AA239A9B"> (that's you). If triggered this layer is</span><a href="https://www.facebook.com/ParksMountainSafety/videos/vb.145133538869977/957537630962893/?type=2&amp;theater" target="_blank"><span class="s_9255B882"> likely to propagate</span></a><span class="s_AA239A9B"> into large avalanches. This layer is of most concern on solar aspects.
Clear skies and high solar input will cause natural avalanches on solar aspects Saturday. These can provide enough mass to trigger persistent and deep persistent weak layers (listed below) causing larger avalanches.
Expect loose wet avalanches on solar aspects as the day heats up. These may trigger persistent slabs where buried crusts exist.
Expect the new snow to become less stable on solar aspects with daytime heating.
Buried crusts are creating persistent instabilities on solar aspects.  Storm snow sits on a crust down 30-50cm. February crust is down 80-120cm and still has surface hoar crystals on top in some places. Locate and test these layers before committing.
Intense spring sun coupled with rising freezing levels can trigger loose wet avalanches with the potential to run far. This is a classic &quot;step-down&quot; scenario where a small releases could trigger storm slabs and buried persistent weak layers.
A mild inversion Sunday with a chance of rain and a poor recovery into Monday could cause surface events. These could provide enough mass to trigger persistent and deep persistent weak layers (listed below) causing larger avalanches.
Expect loose wet avalanches at low elevations and on solar aspects with inversion conditions and a poor overnight recovery into Monday with the chance of rain. Loose wet avalanches may trigger persistent slabs where buried crusts exist.
ont-weight: normal;font-size: 13px;color: #000000;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> High freezing levels </span><span class="s_A91C021F">may</span><span class="s_AA239A9B"> create a condition for loose wet avalanches on Monday. We expect that this will occur at lower elevations and in particular on South aspects.
Freezing level expected to remain at treeline throughout the next 48 hours, even overnight. Expect sluffing and loose wet activity during the heat of the day, particularly on solar aspects.
With 1750m freezing levels there is a chance that loose wet avalanches will occur below treeline on Monday.
t-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_2823317B">Temperatures remained warm overnight</span><span class="s_AA239A9B"> not giving the snowpack it's nightly cooling cycle and therefore not regaining it's strength. To add to the problem the 5cm of new snow is acting like a blanket keeping the snowpack warm.
Freezing level expected to remain at treeline for Monday evening. If this is the case, the snowpack will be further weakened and hazard will continue to increase if daytime temperatures get above 0 degrees or with a strong solar input.
With snowfall and wind in the forecast storm slabs may develop in the coming days. These will not likely bond well initially to the widespread crust that is currently on the surface.
There was little in the way of an overnight freeze below tree-line. Expect the snowpack to feel moist and soft on solar aspects today. Tree bombs could be enough of a trigger to gather up enough mass to bury a person in a terrain traps.
There was little in the way of an overnight freeze below tree-line. Expect the snowpack to feel moist and soft on solar aspects today. Tree bombs could be enough of a trigger to gather up enough mass to bury a person in a terrain traps.
This problem should only exist in the afternoon near the valley bottom elevations (below 1500m), and will start once the day has warmed up and the snow at low elevations turns to slush. Ice climbers should avoid low elevation gullies.
This problem is intended specifically for the Field ice climbs on Mts. Dennis and Stephen. We were there on Thursday, and the snowpack is slush. Hard to notice this if you just walk in the track, but be out of these gullies by noon at the latest.
Subject to intense periods of solar radiation. The overall snowpack is shallow and it does not take long for the Sun to make a significant impact to the hazard rating.
There has not been an overnight freeze below tree-line for several days. Expect avalanches to be easy to trigger on steep slopes where moist snow overlies a crust. While unlikely to be large, avalanches will gain mass in gulleys and terrain traps.
This problem is subject to intense periods of solar radiation. In shallow snowpack spots and sunny conditions, the danger rating will rapidly increase.
This problem should only exist in the afternoon near the valley bottom elevations (below 1500m), and will start once the day has warmed up and the snow at low elevations turns to slush. Ice climbers should avoid low elevation gullies.
This problem is intended specifically for the Field ice climbs on Mts. Dennis and Stephen. We were there on Thursday, and the snowpack is slush. Hard to notice this if you just walk in the track, but be out of these gullies by noon at the latest.
There has not been an overnight freeze below tree-line for several days. Expect avalanches to be easy to trigger on steep slopes where moist snow overlies a crust. While unlikely to be large, avalanches will gain mass in gulleys and terrain traps.
This problem is subject to intense periods of solar radiation. In shallow snowpack spots and sunny conditions, the danger rating will rapidly increase.
This problem should only exist in the afternoon near the valley bottom elevations (below 1500m), and will start once the day has warmed up and the snow at low elevations turns to slush. Ice climbers should avoid low elevation gullies.
This problem is intended specifically for the Field ice climbs on Mts. Dennis and Stephen, and Mt. Field, where steep gully routes will stat to see isothermal now conditions Sunday afternoon.&nbsp;
This problem is unlikely on Monday but will become significant later in the week with forecasted warm temps and intense solar radiation.  The danger rating will rapidly increase on thin solar slopes
These will be largest, and most widespread, on S and W aspect lee slopes at Alpine and Treeline elevations. However, new snow may also overload small buried wind slabs that exist near ridges, lee to previous SW winds.
Expect natural Loose Dry avalanches from cliffy terrain lee to NE winds during the storm. Human triggered sluffing in more sheltered steep terrain will remain likely throughout the forecast period.
This problem will increase with forecasted warm temps and intense solar radiation. The danger rating will rapidly increase particularly on thin snowpack zones and sun facing slopes.
This activity has largely been seen out of fairly extreme terrain with solar heating over the weekend however it was very easy to push the new snow off of buried crusts as it was warming up today. Be careful with terrain traps like cliffs and gullies
As the new snow from Sunday is heated it will fail easily over the recently buried crust. As freezing levels rise through the week this problem should progress to affect more and more terrain.
These will be widespread, but most prevalent on S and W aspect lee slopes at Alpine and Treeline elevations. Sensitivity will increase with slope angle, and especially if temperatures approach 0 degrees, and/or / during strong sun.
Natural Loose Dry avalanches are likely in steep terrain on Tuesday, while human triggered sluffing in more sheltered terrain will remain likely throughout the forecast period.
On Wednesday and Thursday, warming temperatures, and some sun, will persuade the mountains to shed their new load of snow. Natural Loose Wet avalanches will be likely out of steep terrain, and may run far/fast on a crust.
The overnight crust will break down rapidly while the strong sunshine beats upon it. Be aware of the sun's effect on the slopes that you are traveling across, especially by late morning and into the afternoon.
Daytime heating is expected to be intense for the next few days. Get an early start and be done your day early.
This problem will increase with forecasted warm temps and intense solar radiation. The danger rating will rapidly increase particularly on thin snowpack zones and sun facing slopes. Loose avalanches can initiate larger avalanches below.
This activity has largely been seen out of fairly extreme terrain with solar heating over the weekend however it was very easy to push the new snow off of buried crusts as it was warming up today. Be careful with terrain traps like cliffs and gullies
Temps were warm overnight and the weak surface crust will break down quickly. Snow on N-E aspects at higher elevations that previously remained dry will deteriorate with warm temps today. Travel early and be very cautious as the snow becomes moist.
This problem is widespread, and expect slush style avalanches to be running in gullies, from cliffs and on steep slopes facing the sun.
Wet snow avalanches will be running in most steep gully features, near cliff bands and on steep slopes.
This problem will increase with forecasted warm temps and intense solar radiation. The danger rating will rapidly increase particularly on thin snowpack zones and sun facing slopes. Loose avalanches can initiate larger avalanches below.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Temps were above zero overnight at all of our weather stations &amp; got up to </span><span class="s_2823317B">+8 at 1900m</span><span class="s_AA239A9B">! Without an overnight freeze the snowpack will lose its strength &amp; </span><span class="s_2823317B">very destructive avalanches are possible</span><span class="s_AA239A9B">. Travel early &amp; </span><span class="s_2823317B">be cautious as the snow becomes moist
This problem is widespread, and expect slush style avalanches to be running in gullies, from cliffs and on steep slopes facing the sun.
Wet snow avalanches will be running in most steep gully features, near cliff bands and on steep slopes.
A surface crust will break down on low elevation and solar slopes by midday Friday, and everywhere else by Saturday. Watch for moist or wet snow surfaces - these mean Loose wet activity is likely. Avoid exposure to steep terrain above.
This problem will increase with forecasted warm temps and intense solar radiation. The danger rating will rapidly increase particularly on thin snowpack zones and sun facing slopes. Loose avalanches can initiate larger avalanches below.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Above freezing overnight temps mean that the snowpack will destabilize quickly once the sun hits a slope. Be very conscious of the aspects you are exposed to; even if you are in the shade the start zone above you may be cooking in the sun.</span><span class="s_28233
This could again be a problem below treeline as the freezing level will be only drop to around 2000 tonight or if the sun were to come out and break down the surface crusts.
If the sun comes out, the snow pack is warm and will rapidly deteriorate and expect slush style avalanches to be running in gullies, from cliffs and on steep slopes facing the sun or in below treeline terrain.
The problem will remain active over the weekend with freezing levels reaching 2,400m. The danger rating will increase particularly on thin snowpack zones if the sun comes out or rain occurs. Loose avalanches can initiate larger avalanches below.
A weak temperature inversion last night prevented the moist surface snow from refreezing. The upper snowpack will destabilize quickly with daytime warming. If the sun continues to shine today, southern aspects will be particularity vulnerable.
If the sun comes out, the snow pack is warm and will rapidly deteriorate and expect slush style avalanches to be running in gullies, from cliffs and on steep slopes facing the sun or in below treeline terrain.
Less solar input expected Sunday, but watch around steep, rocky areas/gullies if the sun pokes out.
The problem will remain active over the weekend with freezing levels reaching 2,400m. The danger rating will increase particularly on thin snowpack zones. Loose avalanches can initiate larger avalanches below. 
Warm temps and 3mm of rain last night prevented the moist surface snow from refreezing. The upper snowpack will destabilize quickly with daytime warming. If the sun continues to shine today, southern aspects will be particularity vulnerable.
If the sun comes out, the snow pack is warm and will rapidly deteriorate and expect loose and wet avalanches to be running in gullies, from cliffs and on steep slopes facing the sun or in below treeline terrain.
Watch steep, rocky areas/gullies if the sun comes out.
Watch for moist or wet surface snow - this means avalanche activity is more likely.
Be observant of overnight freezing temperatures relative to degree of surface freezing.
Prolonged above 0 temps and 3mm of rain yesterday prevented the moist surface snow from refreezing. A treeline profile yesterday showed all temps were above zero &amp; this AM's rain could rapidly destabilize the already weak snowpack.&nbsp;
Be observant of overnight freezing temperatures relative to degree of surface freezing.
When the sun comes out and the surface crusts break down, the snow pack will rapidly deteriorate. Expect loose wet avalanches to run in gullies, from cliffs and on steep slopes facing the sun during the later parts of the day.
Watch for loose wet avalanches on steep slopes, gullies and rocky areas on solar aspects when the sun comes out, and on all aspects at lower elevations with daytime warming.
Lower elevation tests show an isothermal snowpack. While temp's have dropped overnight, brief glimpses of a strong April sun can be enough to trigger loose avalanches. These loose slides have the potential to entrain a lot of mass and be destructive.
Valley bottom temperatures will rise above freezing on Wednesday, and in the afternoon any steep slopes in the forest or low elevation gullies should be avoided when the crust on top of the snowpack melts.
Valley bottom temperatures will rise above freezing on Wednesday, and in the afternoon any steep slopes in the forest or low elevation gullies should be avoided when the crust on top of the snowpack melts.
Lower elevation tests show an isothermal snowpack. The new snow is acting like insulation and is preventing a solid overnight refreeze. If loose slides are triggered, they have the potential to entrain a lot of mass and be destructive.
Freezing levels will spike to 3300 m on Thursday as the ridge of high pressure settles in.&nbsp; In the afternoon any steep slopes should be avoided when the crust on top of the snowpack melts. Start early and finish early!
Freezing levels may spike to 3300 m Thursday afternoon with clearing skis. Avoid steep slopes or gullies as the day heats up and the crust on top of the snowpack melts. Plan to finish early over the next few days.
Pay attention to daytime warming and stay away from sunny slopes in the afternoon
The snowpack is generally warm and weak; we have yet to undergo a true melt-freeze cycle due to ongoing warm overnight temps. Strong solar and very warm temps are forecast and loose wet avalanches are expected.
In the afternoon any steep slopes should be avoided when the crust on top of the snowpack melts. Start early and finish early!
The freezing level is rising to 3500 m tomorrow.  We are expecting to see loose wet avalanches on most slopes.
Avoid steep slopes or gullies as the day heats up and the crust on top of the snowpack melts. Plan to finish early over the next few days.
We have yet to undergo a true melt-freeze cycle due to warm overnight temps and the snowpack is generally weak. It doesn't take long for the strong solar and very warm temps to break down the weak surface crust. Loose wet avalanches are expected.
Will still be an issue on south facing slopes.
In the afternoon any steep slopes should be avoided when the crust on top of the snowpack melts. Expect this predominantly at lower elevations and on sun exposed slopes for the weekend. Start early and finish early!
Avoid steep slopes or gullies as the day heats up and the crust on top of the snowpack melts. Plan to finish early over the next few days.
Don't expose yourself to steep slopes on Saturday or Monday, unless there is a solid surface freeze.  If you're sinking in to boot top, it's past time to go home!
Glide cracks have been developing quickly on many slopes.  Avoid entering or travelling anywhere below these slopes.  Glide avalanche timing is difficult to predict. Glide avalanches are always large and destructive
We have yet to undergo a true melt-freeze cycle due to warm overnight temps and the snowpack is generally weak. It doesn't take long for the strong solar and very warm temps to break down the weak surface crust. Loose wet avalanches are expected.
In the afternoon any steep slopes should be avoided when the crust on top of the snowpack melts. Expect this predominantly at lower elevations and on sun exposed slopes on Sunday. Start early and finish early!
Avoid steep slopes or gullies as the day heats up and the crust on top of the snowpack melts. Plan to finish early over the next few days.
Will be an issue for the rest of the season, most typically on solar aspects.
It doesn't take long for the strong solar and very warm temps to break down the weak surface crust. Loose wet avalanches are expected.
Will be an issue for the rest of the season, most typically on solar aspects.
Any steep slopes should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. We expect this to occur mostly at lower elevations and on sun exposed alpine slopes on Monday. Start early and finish early!
Any steep slopes should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. We expect this to occur mostly at lower elevations and on sun exposed alpine slopes on Monday. Start early and finish early!
It doesn't take long for the strong solar and very warm temps to break down the weak surface crust. Loose wet avalanches are expected.  Be especially careful in terrain traps below treeline where even a small slide could bury or push you around.
Strong solar input and daytime warming have created a wet slab problem. These slabs can be triggered from loose point releases or they can fail seemingly unprompted in the form of a large glide release.  Avoid overhead exposure to glide cracks!
These may occur naturally, and be triggered by humans, during daytime warming on Tuesday. Watch your exposure, especially during sunny breaks. They should become unlikely later in the week.
Wet Slab avalanche timing is unpredictable. Although becoming unlikely late in the week, any Wet Slab avalanche will be large and destructive. Cracks in the slope (Glide cracks) are strong indicators of Wet Slab potential.
All avalanche terrain should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. We expect this to occur mostly at lower elevations and on sun exposed alpine slopes. Start early and finish early!
Any steep slopes should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. We expect this to occur mostly at lower elevations and on sun exposed alpine slopes on Monday. Start early and finish early!
It doesn't take long for the strong solar &amp; warm temps to break down the weak surface crust. Loose wet avalanches are expected. Be especially careful on S aspects &amp; in terrain traps below treeline where even small slides could bury or push you around
Strong solar input and daytime warming have created a wet slab problem. These slabs can be triggered from loose point releases or they can fail seemingly unprompted in the form of a large glide release. Avoid overhead exposure to glide cracks!
All avalanche terrain should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. Cloud cover may reduce the likelihood of this on Wednesday.
Any steep slopes should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. We expect this to occur mostly at lower elevations and on sun exposed alpine slopes on Monday. Start early and finish early.
It doesn't take long for the strong solar &amp; warm temps to break down the weak surface crust. Loose wet avalanches are expected. Be especially careful on S aspects &amp; in terrain traps below treeline where even small slides could bury or push you around
Strong solar input and daytime warming have created a wet slab problem. These slabs can be triggered from loose point releases or they can fail seemingly unprompted in the form of a large glide release. Avoid overhead exposure to glide cracks!
All avalanche terrain should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. Cloud cover may reduce the likelihood of this on Thursday.
Any steep slopes should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating.&nbsp; Crusts remained intact on Wednesday except at lower elevations. Start early and finish early.
During periods of sun on solar aspects during the heat of the day loose wet avalanches are possible. Minimize your exposure to these slopes. Sometimes loose wet avalanches entrain significant mass and are quite dangerous.
As the snowpack warms and weakens during the day wet slab avalanche are more likely. Large and destructive wet slab avalanches have been observed recently.
All avalanche terrain should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. Cloud cover may reduce the likelihood of this on Thursday.
Any steep slopes should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. Crusts remained intact on Thursday to 1600m. Start early and finish early.
Watch for a cycle of loose wet avalanches in the new snow. Size will be dependant on snowfall amount. On Friday this will mainly be on sunny slopes; heat on Saturday and Sunday may spread this problem to higher/shadier terrain.
A strong surface crust exists, and with good timing spring &quot;corn&quot; skiing can be had when the surface starts to break down. However, if the crust has completely broken down loose wet avalanches will be easy to trigger and can entrain significant mass.
As the snowpack warms and weakens during the day wet slab avalanche are more likely. Large and destructive wet slab avalanches have been observed recently. As freezing levels rise over the weekend more avalanche activity is expected.
All avalanche terrain should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. This is possible to TL Saturday but very likely into the ALP and on North aspects Sunday with strong heating expected
All avalanche terrain should be avoided later in the day when the crust on top of the snowpack breaks down due to daytime heating. This is possible to TL Saturday but very likely into the ALP and on North aspects Sunday with strong heating expected
A crust buried up to 1m deep may become increasingly reactive over the weekend and be hard to predict. Test results show variability: in some areas it is unreactive and in others it may be triggered by light loads (you!) and produce large avalanches.
Forecast snow and wind might make a crust buried up to 1m deep more reactive and unpredictable. Test results show variability: in some areas it is unreactive and in others it may be triggered by light loads (you!) and produce large avalanches.
We are expecting up to 30cm of snow by Sunday. This will add to ~20cm of powder sitting on the surface. Expect sluffing and loose avalanches to be triggered when skiing steep slopes. The loose snow also hides tree wells; buddy up!
Moderate winds and significant snowfall should be creating sensitive storm slabs in the alpine and open areas at treeline.
20cm of storm snow so far with another 10cm expected by Sunday. This is in addition to the 20cm of soft snow on the old snow surface. Loose snow avalanches can be expected in steeper terrain.
Storm snow loading on top of the persistent slab/Nov crust could make this deep slab more reactive. Field tests so far show variability with areas that are unreactive and others where light loads may trigger slides on this layer.
Newly formed storm slabs should be treated as susceptible to human triggering. Once triggered it may overload the Nov 13 crust layer resulting in large avalanches.
Upwards of 60cm of loose dry snow has fallen. Sluff management will be essential for safe travel. Watch for others above and below you. Sluffs may overload storm and windslabs given the right location.
While natural avalanche activity is tapering off, human triggered avalanches are still likely. Our new storm slab sits on previous wind slabs, combined this avalanche problem has the potential to step down to the Nov 13 Crust. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Upwards of 80cm of loose dry snow has fallen. Sluff management will be essential for safe travel. Watch for others above and below you. Sluffs have the potential to push a rider into a tree well or other terrain trap.
Sluffs have the potential to push a rider into a tree well or other terrain traps. With the recent arrival of 80cm of loose dry snow, sluff management will be essential for safe travel. Watch for others above and below you.
This will mainly be a problem on Sunday as wind moves low-density snow around.
This problem is most widespread in the alpine, where new snow totals are highest; but has also been noted in steep ice climbing areas Below Treeline. Skiers, use caution in steep terrain; Climbers, use caution around gullies, and avoid during wind.
Wind slabs are currently a problem in the Alpine in Western Areas, and on all snowy slopes in Eastern areas.&nbsp; Watch for this problem to move to S and W facing slopes if we see moderate NE winds Thursday-Friday.
The low density snow that has made for great skiing lately is being blown to many places. With Extreme winds, watch for Wind Slabs in unusual places. New snowfall on Monday will increase this problem. These may be hidden by more snowfall on Tuesday.
30cm of storm snow is settling over a very weak old surface of facetted  snow. The surface slab will be sensitive to human and natural triggering especially in areas of wind effect as it overloads the weak layer.
Sunday afternoon we were already observing loose dry snow sluffing as the weak old snow surface was overloaded.  Add another 30cm overnight and these slides could entrain enough mass to be an issue for skiers and riders.
48 hours of intense ridgetop transport due to strong SW winds has created new windslabs, reactive to skier traffic. Numerous natural avalanches were observed from a variety of aspects, particularly alpine gulley features and planar NE slopes.
50cm of storm snow with strong gusting winds is sitting over a very weak old surface of facetted snow. Cracking and whumphing was observed yesterday from groups out skiing. With additional snowload and settlement the surface slab will remain touchy
Where the new snow is unconsolidated heavy sloughing is expected. Add another 10cm of new snow today and in steep terrain these slides could entrain enough mass to be an issue for skiers and riders.
72 hours of intense ridgetop transport due to strong SW winds has created windslabs. Numerous natural avalanches were observed from a variety of aspects, particularly alpine gulley features and planar NE slopes.
~80cm of storm snow is settling into a slab. It sits on a weak and reactive layer of facets and spotty surface hoar. Yesterday skiers accidentally triggered a storm slab avalanche, partially burying a member of the group. Human triggering is likely.
Where the new snow is unconsolidated heavy sloughing is expected. In steep terrain these slides could entrain enough mass to be an issue for skiers and riders.
Intense ridgetop transport due to strong SW winds has created windslabs. Numerous natural avalanches were observed from a variety of aspects, particularly alpine gulley features and planar NE slopes.
80cm of storm snow is settling into a slab. The storm snow is poorly bonded to a reactive layer of facets and spotty surface hoar.
Where the new snow is unconsolidated heavy sloughing is expected. In steep terrain these slides could entrain enough mass to be an issue for skiers and riders.
Strong winds have created a mosaic of snow depths across the landscape. These slabs will vary greatly in their triggering sensitivity requiring each slope to be carefully evaluated. The only rule of thumb to keep in mind is caution is advised.
Cold temperatures have kept recent storm snow light and powdery, but slab properties are beginning to form. The slab sits on the December 18 facet/ surface hoar down 50-60cm. Stability tests show that the storm slab is reactive to skier loads.
Nearby operations have reported these failing in the middle of the snowpack, and in some cases stepping down to ground. They are most likely to be triggered in thin Rocky areas, which are more widespread in the Eastern areas of the Park.
These are more widespread than usual, existing on most aspects and elevations due to the intensity of previous winds. They will be hard to spot under new snowfall. New Wind Slabs will build with forecast Strong Westerlies on Monday.
Recent storm snow has been slow to form a slab in part due to cold temps. Slab properties are starting to form.  The slab rests on the Dec 18 facet/surface hoar layer down 50-60cm.  Stability tests show that the storm slab is reactive to skier loads.
New snow amounts have slowly piled up, especially in Eastern areas with the influence of an up-slope flow. The weak Dec 19 facets do not provide much support for this snow and once a sluff is initiated in steep terrain, it can run a long distance
New snow amounts have slowly piled up, especially in Eastern areas with the influence of an up-slope flow. The weak Dec 19 facets do not provide much support for this snow and once a sluff is initiated in steep terrain, it can run a long distance
Nearby operations have reported these failing in the middle of the snowpack, and in some cases stepping down to ground. They are most likely to be triggered in thin rocky areas, which are more widespread in the Eastern areas of the Park.
These are more widespread than usual, existing on most aspects and elevations due to the intensity of previous winds. They will be hard to spot under new snowfall. New Wind Slabs will build with forecast Strong Westerlies on Monday.
The recent storm snow has been slow to form a slab in part due to continued cool temperatures. Slab properties are starting to form and this is a concern given the Dec 18th facet/surface hoar weak layer down 50-60cm.
New snow amounts have slowly piled up, especially in Eastern areas with the influence of an up-slope flow. The weak Dec 19 facets do not provide much support for this snow and once a sluff is initiated in steep terrain, it can run a long distance
New snow amounts have slowly piled up, especially in Eastern areas with the influence of an up-slope flow. The weak Dec 19 facets do not provide much support for this snow and once a sluff is initiated in steep terrain, it can run a long distance
The recent storm snow has been slow to form a slab in part due to continued cool temperatures. Slab properties are starting to form and this is a concern given the Dec 18th facet/surface hoar weak layer down 50-60cm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The snow from the past week has been slow to form a slab in part due to continued cool temperatures and little wind. Slab properties are now starting to form and this is a concern, given the poor bond to the Dec 18th facet layer down 50-60cm.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Nearby operations have reported these failing in the middle of the snowpack, and in some cases stepping down to ground. They are most likely to be triggered in thin rocky areas, which are more widespread in the Eastern areas of the Park.
These are more widespread than usual, existing on most aspects and elevations due to the intensity of previous winds. They will be hard to spot under new snowfall. New Wind Slabs will build with forecast Strong Westerlies on Monday.
The weak, facetted snow from the cold snap in early December is now buried ~70-100cm. The slab over this layer is developing, and as the load on this layer grows it may become increasingly reactive.
In areas sheltered from the wind there is a lot of amazing, low density powder. Expect sluffing when skiing steeper pitches. With all the loose, light snow a small avalanche may pick up mass especially in more confined gully type terrain features.
Up to 30cm of snow fell in the last 24hrs at treeline with another 15-25 expected today &amp; tonight. This new slab has buried a spotty surface hoar layer, that could be lurking. Expect this new load to take some time to stabilize.
50cm storm snow in 48hrs with flurries expected today. The storm snow has buried a spotty surface hoar layer to dig and look for. The new load will take a few days to stabilize.
Nearby areas have seen these failing in the midpack facets in thicker areas and in loose sugary facets near the ground in thinner areas. They are most likely to be triggered in thin rocky areas, with variable snowpack depth.
60+ cm of new snow in the last 72 hours at tree line has created storm slabs most reactive at tree line and in the Alpine. The storm slab also stepped down to the Dec 18th interface yesterday on steep shallow southerly aspects with artillery control.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Since Thursday we have received 60cm+ snow at 1900m elevation which is settling into a slab. Expect the forming slab to be most reactive at and above TL. The storm slab did step down to the Dec 18th interface with artillery and explosive control.
These are touchy, especially to the immediate lee of ridges. Look for these on the opposite side of features from normal. The storm snow will be slow to stabilize, due to cold temperatures. Wind Slab problems may develop on Wednesday.
The weak midpack facet layer is widespread, but highly variable slab thickness and sensitivity makes these hard to evaluate. These are difficult to trigger, but may be large. Rocky, wind-exposed areas are most suspect.
The weak mid-pack facet layer is widespread, but&nbsp; the slab over it is variable. These may be&nbsp; difficult to trigger but&nbsp; are high consequence. Avoid large uniform features, shallow trigger points, and watch for slab properties in the upper snowpack.
The weak facet layer is isolated to thin snowpack areas where the presence of any slab over these crystals would spell concern. Avoid thin snowpack areas, use caution with large uniform features, and consider the potential for shallow trigger points.
Faceting of the surface snow is causing it to lose cohesion and release loose dry avalanches in steep terrain. Particularly concerning for ice-climbers in confined terrain.
Avoid thin snowpack areas, use caution with large uniform features, and consider the potential for shallow trigger points.
Faceting of the surface snow is causing it to lose cohesion and release loose dry avalanches in steep terrain. 10-15cm of new snow will add to this problem. This is concerning for ice-climbers in confined terrain.
Cold temps have facetted the snowpack and is causing it to lose cohesion and release loose dry avalanches in steep terrain.&nbsp; The 10-15cm of new snow will add to this problem. This is concerning for ice-climbers and skiers in confined/exposed terrain.
A weak layer of facets in the middle of the snowpack will be trying to adjust to new loading from recent snowfall, and forecast wind transport. A Moderate, Sudden Planar result in a snowpack test on Tuesday indicates potential for human triggering.
Cold temps have facetted the snowpack and is causing it to lose cohesion and release loose dry avalanches in steep terrain. The 10-15cm of new snow will add to this problem. This is concerning for ice-climbers and skiers in confined/exposed terrain.
The faceted snowpack continues to lose cohesion and release loose dry avalanches from steep terrain. This is concerning for ice-climbers and skiers in confined/exposed terrain.
The faceted snowpack continues to lose cohesion and release loose dry avalanches from steep terrain. This is concerning for ice-climbers and skiers in confined/exposed terrain.
Facets in the midpack have produced sporadic test results, and loads in thin Alpine areas could trigger Deep Persistent Slabs on a Depth Hoar/Crust combo near the bottom of the snowpack. Near-zero temps may increase sensitivity of these layers.
The faceted snowpack has little cohesion producing loose dry avalanches in steep terrain. This is concerning for ice-climbers and skiers in confined/exposed terrain.
Loose dry avalanches observed out of steep solar aspects at lower elevations, this loose snow has the potential to entrain the very faceted snowpack and gain mass quickly. Main terrain concern is when traveling in gully features while ice climbing.
Weak faceted layers from previous cold temps in the mid and lower snowpack remain a concern, particularly in shallow snowpack areas where facetting is more pronounced and triggering is more likely.
Weak surface snow found at sheltered locations at lower elevations can fail easily in steep terrain. This loose snow has the potential to entrain more faceted snow and gain mass quickly particularly in confined terrain features like ice climbs
Weak surface snow found at sheltered locations at lower elevations can fail easily in steep terrain. This loose snow has the potential to entrain more faceted snow and gain mass quickly particularly in confined terrain features like ice climbs
Forecasted snow amounts expected to be 10 to 30cms over the next 24 hours. Regardless of volume, this snow will fall on to a variety of surface forms (rocks, small surface hoar; facets, or hard windslabs).
15 cm of new snow in the last 24 hrs falls with moderate S winds is building a new slab.  Steady snowfall over the next few days will add load to this developing slab which sits on a weak layer of facets and surface hoar. 
35cm of new snow was accompanied by moderate S winds. This has created a new storm slab that is poorly bonded to a weak layer of facets and surface hoar. This slab will be reactive at all elevation bands, especially with the warm temp's today.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Recent storm snow is sluffing out of steep terrain. Ice climbers in particular should be paying attention to this problem.
50cm of new snow, accompanied by moderate southerly winds and warming temperatures, has created a new storm slab . The slab is poorly bonded to a weak layer of facets and surface hoar. This slab is widespread and reactive.
Storm slabs may be present especially at tree-line. If triggered, it is likely it will initiate the rest of the weak faceted snowpack.
40cm of new snow has settled into slabs with the warm and humid weather. These will be most reactive at lower elevations in steep (35+ degree) terrain where they sit over facets. Cooling temperatures over the next few days should slow activity.
50cm of new snow, accompanied by moderate southerly winds and warming temperatures, has created a new storm slab . The slab is poorly bonded to a weak layer of facets and surface hoar. This slab is widespread and may become more reactive in the sun.
40cm of new snow has settled into slabs with the warm and humid weather. These will be most reactive at lower elevations in steep (35+ degree) terrain where they sit over facets. Cooling temperatures over the next few days should slow activity.
40 to 60cm of storm snow last week with warm temperatures and strong winds created a storm slab. This layer will need time to heal and bond to older surfaces like near surface faceting and wind slabs. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Watch for solar inputs today on southerly aspects, most likely present on steep rocky unsupported terrain.
40cm of new snow has settled into slabs with the warm and humid weather. These will be most reactive at lower elevations in steep (35+ degree) terrain where they sit over facets. Cooling temperatures over the next few days should slow activity.
Storm slabs are most volatile near ridge crest and terrain exposed to the wind and lee features. Evaluate each slope independently, avoid steep, shallow, unsupported terrain, cornices and terrain traps.
While this layer still exists in the alpine and should be considered in shallow areas it is mainly TL and below where this sugary snow in the lower snowpack continues to produce moderate shears. Take extra care BTL where this layer is shallow
This layer is mainly a concern below treeline where the facetted snow in the lower snowpack continues to produce moderate shears.
Last weeks storm snow has settled into a 20-40 cm slab. This slab is starting to settle out, but snowpit tests show this layer to be reactive in some locations, particularly around treeline where surface hoar has been found.
Wind loading and shedding from steep faces, especially concerning for ice climbers.
Incoming new snow will not likely bond well to previous surfaces.&nbsp; Watch for fast running sluffs in steep terrain if snowfall amounts exceed 10cm.
Wind loading and shedding from steep faces, especially concerning for ice climbers.
Thin pockets of Wind Slab are expected to be hard and unreactive in wind exposed areas, but may be soft enough to trigger in typically sheltered areas. The problem may switch to S and W aspects if we get more snowfall than forecast with NE winds.
Wind loading and shedding from steep faces, especially concerning for ice climbers.
Wind loading and shedding from steep faces, especially concerning for ice climbers.
Faceted snow may be triggered on steep solar aspects.
Faceted snow is easily triggered and can grow quickly by entraining surrounding snow.
Faceted snow&nbsp; on ledges and above ice climbs can be easily triggered and can grow quickly by entraining surrounding snow especially in gulley features.
This problem will grow throughout the forecast period, and may be widespread. Pay attention to obvious signs of instability, do snowpack tests on representative slopes, and only expose one at a time. Conservative decision-making is essential.
Deeply buried Persistent weak layers from a cold winter have produced few results in recent testing, but are now being heavily loaded. In sheltered/windward terrain, this is the first large load on these layers. Avoid previously shallow areas.
Loose Dry avalanches will fail naturally in steep sheltered area. These will grow in size by Monday. Avoid extended time in features like gullies Below Treeline, where you will be exposed to overhead hazard, and avoid skiing above your partner.
Storm slabs are forming over a weak old snow surface that developed during the recent cold clear weather. Freshly formed slabs will be more sensitive to human triggering in wind exposed terrain.
Currently small in size, watch locally for their formation and the bed surface below. This can be facets, wind layers, surface hoar, or sun crust. As there is an easterly component, if there are increased winds watch for reverse loading.
Faceted snow on ledges and above ice climbs can be easily triggered and can grow quickly by entraining surrounding snow especially in gulley features.
Expect widespread sensitive windslab in exposed terrain at and above treeline. The slab will be hidden by last night's storm snow making it harder to detect. These slabs reside on a variety of weak surfaces and are susceptible to human triggering.
Deeply buried Persistent weak layers from a cold winter have produced few results in recent testing, but are now being heavily loaded. In sheltered/windward terrain, this is the first large load on these layers. Avoid previously shallow areas.
Loose Dry avalanches will fail naturally in steep areas.
Currently small in size, watch locally for their formation and the bed surface below. This can be facets, wind layers, surface hoar, or sun crust. Watch for reverse loading where east winds are present.
Wind and storm slabs have produced many avalanches of late, up to size 3.5! Storm slabs were hair triggered yesterday on the west end of the park averaging size 1.5 at and below TL. Saturday a wind slab was triggered on a solar asp sliding on a crust 
10cm of storm snow over facets can be easily triggered and grow quickly by entraining surrounding snow especially in gulley features.
This is a weak and difficult to predict problem. We expect it to become more reactive now with more load, and once triggered may cause large avalanches running into the lower elevations. Avoid all big avalanche terrain.
The generally weak, facetted mid pack is producing moderate to hard shears. In the upper snowpack around treeline a buried layer of surface hoar produces variable shears. Current slab development will make triggering these layers more likely.
30cm of storm snow overlies a variety of surfaces to which it may bond poorly. Skiers have triggered small, unsupported slopes. As the snow settles and forms a slab expect it to become more reactive and capable of propagating into larger avalanches.
N'ly winds at ridgetop, and downflow winds in valley bottoms and drainages have changed the landscape, forming drifts and windslabs in unusual places. Be especially cautious on S'ly aspects where reverse loading has formed windslabs on a suncrust.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
This is a weak and difficult to predict problem. We expect it to become more reactive with more load (Thurs), and once triggered may cause large avalanches running into the lower elevations.
The generally weak, facetted mid pack is producing moderate to hard shears. In the upper snowpack around treeline a buried layer of surface hoar produces variable shears.
10cm of storm snow over facets can be easily triggered and grow quickly by entraining surrounding snow especially in gulley features.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">30cm of storm snow sits on a variety of surfaces to which it may bond poorly (</span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Profiles/20170207%20Balu%20Pass.png" target="_blank"><span class="s_9255B882">check out this snow profile</span></a><span class="s_AA239A9B">). As the snow forms a slab, and with new load from the storm expect it to become more reactive and capable of propagating into larger avalanches
Expect rapid Wind Slab development with incoming weather system.
Weak layers from a cold winter have produced few results in recent testing, but are now being heavily loaded, time will tell when the tipping point is reached for these to come back to life.
This is a weak and difficult to predict problem. We expect it to become more reactive with more load (Thurs), and once triggered may cause large avalanches running into the lower elevations.
The persistent weak layer in the mid-pack may waken up with the additional storm snow and the warming temperatures forecasted for Thursday.
Forecasted storm snow (~30cm) will fall over a poorly bonded, weak snow pack. Small sluffs have potential to entrain a lot of mass and grow in size quickly.
Heavy loading from recent storms has created widespread storm slabs. With more snow and wind for today, natural avalanches on this layer are likely. This is a problem to avoid today, staying clear of large open avalanche terrain above tree line.
Expect drifted snow to be deeper than 100 cm in leeward areas on Friday and very susceptible to human triggering. Give avalanche terrain a wide berth and remember that any fracture lines my extend further that you expect.
This problem is likely to &quot;wake up&quot; during this storm, resulting in large avalanches that could potentially run full path. Avoid avalanche terrain on Friday. and remember to watch out for overheard slopes and gullies.
Expect drifted snow to be deeper than 100 cm in leeward areas on Friday and very susceptible to human triggering. Give avalanche terrain a wide berth and remember that any fracture lines my extend further that you expect.
This problem is likely to &quot;wake up&quot; during this storm, resulting in large avalanches that could potentially run full path. Avoid avalanche terrain on Friday. and remember to watch out for overheard slopes and gullies.
Forecasted storm snow (~30cm) will fall over a poorly bonded, weak snow pack. Small sluffs have potential to entrain a lot of mass and grow in size quickly.
Widespread reactive storm slabs have formed. If triggered they have potential to run full path. Natural avalanche activity will taper off leaving slabs primed for human triggering.
45cm storm snow in last 48hrs and another 5cm on the way.  Expect to see loose dry avalanches occurring naturally in steep terrain.  Even steep open lines below treeline will require some sluff management today.
Likelihood of Storm Slabs in previous storm snow will decrease somewhat during the forecast period; however, they may be slow to bond with old surfaces, and can be surprising deep.
Several large avalanches have been observed from previously shallow terrain, where storm snow fell on large facets.  Observations have been limited; it is possible that Persistent slabs may be triggered in deeper areas also.
Wind loading has resulted in numerous loose dry avalanches over the last 24 hours out of steep cliffs and gullies. Ice climbers in particular should avoid any climbs in avalanche terrain until this activity dies down.
The new snow has created a touchy slab over the weak facets at all elevations, resulting in many avalanches that could potentially run full path. Avoid avalanche terrain on Saturday and remember to watch out for overhead slopes and gullies.
Wind loading has resulted in numerous loose dry avalanches over the last 24 hours out of steep cliffs and gullies. Ice climbers in particular should avoid any climbs in avalanche terrain until this activity dies down.
The new snow has created a touchy slab over the weak facets at all elevations, resulting in many avalanches that could potentially run full path. Avoid avalanche terrain on Saturday and remember to watch out for overhead slopes and gullies.
30-40cm of storm snow with warming temps has promoted fast settlement, forming a touchy storm slab.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Widespread reactive storm slabs have formed from previous heavy snowfall and strong winds overnight! </span><span class="s_2823317B">If triggered they have potential to run full path</span><span class="s_AA239A9B">. Natural avalanche activity will taper off leaving slabs primed for human triggering.
The new snow has created a touchy slab over the weak facets at all elevations, resulting in many avalanches that could potentially run full path, of which there have been numerous examples.
Wind loading has resulted in numerous loose dry avalanches over the last 48 hours out of steep cliffs and gullies. This problem will remain Sunday as wind speeds stay elevated.
The new snow has created a touchy slab over the weak facets at all elevations, resulting in many avalanches that could potentially run full path.
Wind loading has resulted in numerous loose dry avalanches over the last 48 hours out of steep cliffs and gullies. Ice climbers in particular should avoid any climbs in avalanche terrain until this activity dies down.
30-40cm of storm snow has formed a touchy storm slab.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Widespread reactive storm slabs have formed from previous heavy snowfall and strong winds overnight! </span><span class="s_2823317B">If triggered they have potential to run full path</span><span class="s_AA239A9B">. Reports came in of whumphing &amp; low elevation slabs releasing below treeline yesterday.
30-40cm of storm snow has formed a touchy storm slab.
Strong-Extreme Westerly winds are depositing snow further down slope than one might expect. Be cautious as you transition into wind affected snow.
While deep Storm Slabs from last weeks heavy snowfall have gained some strength over the past few days, this weeks warm temperatures may increase the likelyhood of triggering them.
Several large avalanches have been observed from previously shallow terrain, where storm snow fell on large facets. Observations have been limited; it is possible that Persistent slabs may be triggered in deeper areas also.
The new snow has created a touchy slab over the weak facets at all elevations, resulting in many avalanches that could potentially run full path, of which there have been numerous examples.
The new snow has created a touchy slab over the weak facets at all elevations, resulting in many avalanches that could potentially run full path.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Widespread reactive storm slabs have formed from previous heavy snowfall and strong winds overnight! </span><span class="s_2823317B">If triggered they have potential to run full path</span><span class="s_AA239A9B">. Reports came in of whumphing &amp; low elevation slabs releasing below treeline yesterday.
The Jan 25th sun crust is buried down approx 60cm. Previous to the storm it was whumphing, showing easy sudden results and reactive to human triggering. If the storm slab is triggered it has the potential to step down and trigger this layer.
30-40cm of storm snow has formed a touchy storm slab.
The recent snow has created a touchy slab over the weak facets at all elevations. Avalanches that have run full path have been observed in many areas.
With temperatures climbing, all it will take is a brief period of clear skies and calm winds to have a major impact on steep slopes. Small solar or temperature triggered events are likely as the snow becomes moist.
The new snow has created a touchy slab over the weak facets at all elevations. Avalanches could potentially run full path. We are seeing avalanche activity for the first time this season in many different areas.
With temperatures climbing, all it will take is a brief period of clear skies and calm winds to have a major impact on steep slopes. Small solar or temperature triggered events are likely as the snow becomes moist.
The storm slab may become more sensitive to human triggering with rising freezing level to 2400m.  The other item to contend with will be the sun's  input on steep solar aspects warming the surface slab.
The Jan 25th sun crust is buried down approx 60cm.  Before last week's storm it was giving easy sudden planar results and was reactive to human triggering.  If the storm slab releases it has the potential to step down to this deeper weak layer.
Steep solar aspects are waking up today with thin surface point releases already being observed in Grizzly Bowl.  A good day to minimize exposure to solar aspects.
Rain and warm temperatures expected in valley bottoms.
The new snow has created a touchy slab over the weak facets at all elevations. Avalanches could run full path. We are seeing avalanche activity for the first time this season in many different areas.
With temperatures climbing, all it will take is a brief period of clear skies and calm winds to have a major impact on steep slopes. Small solar or temperature triggered events are likely as the snow becomes moist.
The recent snow has created a touchy slab over the weak facets at all elevations. Avalanches that have run full path have been observed in many areas.
With temperatures climbing, all it will take is a brief period of clear skies and calm winds to have a major impact on steep slopes. Small solar or temperature triggered events are likely as the snow becomes moist.
The January 25th sun crust, weak layer is buried down approx 60cm.  Before last week's storm it was giving easy sudden planar results and was reactive to human triggering.  Warming surface layers may reawaken this layer today.
Rain and warm temperatures expected in valley bottoms.
The new snow has created a touchy slab over the weak facets at all elevations. Avalanches could run full path. We are seeing avalanche activity for the first time this season in many different areas.
The recent snow has created a touchy slab over the weak facets at all elevations. Avalanches that have run full path have been observed in many areas.
While deep Storm Slabs from last weeks heavy snowfall have gained strength, they sit over a facet-crust combo on solar slopes below 2100m, and over facets (slowly strengthening) in sheltered/treed areas. If triggered, these may be destructive.
Several large avalanches were observed last week, all in the front ranges and/or in windward terrain, where storm snow fell on large facets in a shallow snowpack.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Snowpack tests have been finding isolated sudden planar results, making them hard to predict. With the added load of rain/heavy snow they may be more reactive
With up to 50cm of moist snow on the surface, loose wet avalanches are expected today and may be triggered by light loads such as skiers and even tree bombs. Although likely to be small, wet avalanches are powerful and can occur even on small slopes
Isothermal conditions expected in valley bottoms.
Fresh Storm Slabs are forming, specifically lee to SW winds. These overlie a widespread, stubborn older slab (70cm thick). This sits on a facet-crust combo on solar aspects below 2100m, and on hollow facets (slowly healing) in sheltered/treed areas.
Several large avalanches have been observed in the front ranges and/or windward terrain, where storm snow fell on shallow facets over ground. Rain on Thursday triggered an avalanche on the basal facets, in a shallow snowpack area Below Treeline.
The recent storm snow has created a touchy slab over the weak faceted midpack at all elevations. Avalanches could run full path. Extra caution is warranted until&nbsp; the snowpack has adjusted to this extra load.
Loose wet avalanches were observed on Thursday below 1900m. Despite cooler temperatures forecast for Friday this still may be a problem at lower elevations. Pay attention to day-time temperatures.
The recent snow has created a touchy slab over several weak interfaces in the mid-pack. Avalanches that have run full path have been observed in many areas.
Loose wet avalanches were observed on Thursday below 1900m. Despite cooler temperatures forecast for Friday this still may be a problem at lower elevations. Pay attention to day-time temperatures.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Snowpack tests show isolated sudden planar results, making them hard to predict. With the added load of rain/heavy snow they may be more reactive.
With up to 50cm of moist snow on the surface, loose wet avalanches are expected today and may be triggered by light loads such as skiers and even tree bombs. Although likely to be small, wet avalanches are powerful and can occur even on small slopes.
The recent snow has created a touchy slab over several weak interfaces in the mid-pack. Avalanches that have run full path have been observed in many areas over the past week.
The recent storm snow has created a touchy slab over the weak faceted midpack at all elevations. Avalanches on this layer could run full path. Extra caution is warranted until the snowpack has adjusted to this extra load.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Snowpack tests show isolated sudden planar results, making them hard to predict. With the added load of rain/heavy snow they may be more reactive.
With high freezing levels today and moist snow on the surface, loose wet avalanches are expected today.&nbsp; Although likely to be small, wet avalanches are powerful and can occur even on small slopes.
There is a thick slab over a structurally weak snowpack at all elevations. Likely areas of triggering would be from thin parts of a slope at treeline and above which can propagate to deeper areas and cause a large avalanche.
The recent snow has created a thick slab over several weak interfaces in the mid-pack. Dig down to see how the recent storm snow is bonding to the layer below, and choose conservative terrain features. 
Widespread whumphing and shooting cracks in previously un-skied terrain. Recent natural activity up to Sz 3 failing on the weak faceted snowpack.
A 70cm slab of previous storm snow sits on a crust below 2000m, and/or facets. These are widespread, but hard to trigger. Dig in safe areas on adjacent slopes, do snowpack tests and gain more information, before entering into consequential terrain.
Several large avalanches have been observed in the front ranges and/or windward terrain, where storm snow fell on shallow facets over ground. Rain on Thursday triggered an avalanche on the basal facets, in a shallow snowpack area Below Treeline.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Tests show isolated sudden planar results, making them hard to predict. Be cautious in shallow snowpack areas (ridge-crests) where triggering is more likely.
Widespread whumphing and shooting cracks in previously un-skied terrain. Recent natural activity up to Sz 3 failing on the weak faceted snowpack.
There is a thick slab over a structurally weak snowpack at all elevations. Likely areas of triggering are in thin parts of a slope at tree line and above where a failure can propagate to deeper areas and cause large avalanches.
A thick slab of more recent snow sits over several weak facet interfaces in the mid and lower snow pack. Dig down to see how the recent snow is bonding to the layer below, and choose conservative terrain features.
Weak layers in the top meter include sun crust on solar slopes and pockets of surface hoar. Tests show isolated sudden planar results, making them hard to predict. Be cautious in shallow snowpack areas (ridge-crests) where triggering is more likely.
There is a thick slab over a structurally weak snowpack at all elevations. Likely areas of triggering are in thin parts of a slope or rocky outcrops at tree line and above where a failure can propagate to deeper areas and cause large avalanches.
A thick slab of more recent snow sits over several weak facet interfaces in the mid and lower snow pack where ever the snowpack is thin. Dig down to see if these facets are present and if so choose conservative terrain features.
Widespread whumphing and shooting cracks in previously un-skied terrain. Recent natural activity up to Sz 3 failing on the weak faceted snowpack.
Widespread whumphing and shooting cracks in previously un-skied terrain. Recent natural activity and remote triggering of this weakness resulted in avalanches up to size 3 failing on the weak faceted snowpack.
There is a thick slab over a structurally weak snowpack at all elevations. Likely areas of triggering are in thin parts of a slope or rocky outcrops at tree line and above where a failure can propagate to deeper areas and cause large avalanches.
A thick slab of more recent snow sits over several weak facet interfaces in the mid and lower snow pack where ever the snowpack is thin. Dig down to see if these facets are present and if so choose conservative terrain features.
Widespread whumphing and shooting cracks in previously un-skied terrain. Recent natural activity and remote triggering of this weakness resulted in avalanches up to size 3 failing on the weak faceted snowpack. Caution is recommended.
There is a thick slab over a structurally weak snowpack at all elevations. Likely areas of triggering are in thin parts of a slope or rocky outcrops at tree line and above where a failure can propagate to deeper areas and cause large avalanches.
A thick slab of more recent snow sits over several weak facet interfaces in the mid and lower snow pack where ever the snowpack is thin. Dig down to see if these facets are present and if so choose conservative terrain features.
Widespread whumphing and shooting cracks in previously un-skied terrain. Recent natural activity and remote triggering of this weakness resulted in avalanches up to size 3 failing on the weak faceted snowpack. Caution is recommended.
There is a thick slab over a structurally weak snowpack in most areas. Likely areas of triggering are in thin parts of a slope or rocky outcrops at tree line and above. A failure can propagate to deeper areas and cause large avalanches.
A variable snowpack exist ranging from quite strong in the Takakkaw Falls area to somewhat weaker around Emerald Lake. Several weak facet interfaces exist in the mid-pack. Dig down and assess these layers prior to committing to any bigger terrain.
Be conservative with your terrain choices, especially when entering larger, steeper features. Dig down to see where the Jan. weak layer is and how it is reacting locally. We are still unsure about distribution of this layer within the region.
Widespread whumphing and shooting cracks in previously un-skied terrain. Recent natural activity and remote triggering of this weakness resulted in avalanches up to size 3 failing on the weak faceted snowpack. Caution is recommended.
There is a thick slab over a structurally weak snowpack in most areas. Likely areas of triggering are in thin parts of a slope or rocky outcrops at tree line and above. A failure can propagate to deeper areas and cause large avalanches.
Low density surface snow produced numerous Loose dry avalanches on Thursday. New, cold snow falling with light winds on Sunday/Monday are likely to produce further natural Loose Dry avalanche activity. Watch for this anywhere the snow feels light.
Widespread whumphing and shooting cracks in previously un-skied terrain. It seems to be improving but suspect pockets of weakness waiting for the trigger.&nbsp;
There is a thick slab over a structurally weak snowpack in most areas. Likely areas of triggering are in thin parts of a slope or rocky outcrops at tree line and above. A failure can propagate to deeper areas and cause large avalanches.
Be conservative with your terrain choices, especially when entering larger, steeper features. Dig down to see where the January weak layer is and how it is reacting locally. We are still unsure about distribution of this layer within the region.
Whumphing is occurring in un-skied terrain. It seems to be improving but suspect pockets of weakness just waiting for the trigger. Cold temperatures continue to promote facetting.&nbsp;
The mid January layer down 50 to 60 cm is a concern above 1700m as the surface crusts dissipate. Dig to test here. In the alpine use caution in shallow areas where the December Facets remain a concern 60cm or less above the ground. Probe to test here
There is a thick slab over a structurally weak snowpack in most areas. Likely areas of triggering are in thin parts of a slope or rocky outcrops at tree line and above. A failure can propagate to deeper areas and cause large avalanches.
Sluffing in top 10-20cm, specific to steep terrain 35-40deg+
There is a thick slab over a structurally weak snowpack in most areas. Avoid thin parts of a slope or rocky outcrops at tree line and above. A failure can propagate to deeper areas and cause large avalanches.
Conditions have improved since last week, and the likelihood of triggering an avalanche is reduced - however, weak layers still exist and entry into any start zone areas should be based upon knowledge of the snowpack conditions on that slope.
Whumphing is occurring in un-skied terrain. It seems to be improving but suspect pockets of weakness just waiting for the trigger. Cold temperatures continue to promote facetting.
There is a thick slab over a structurally weak snowpack in most areas. Avoid thin parts of a slope or rocky outcrops at tree line and above. A failure can propagate to deeper areas and cause large avalanches.
Conditions have improved since last week, and the likelihood of triggering an avalanche is reduced - however, weak layers still exist and entry into any start zone areas should be based upon knowledge of the snowpack conditions on that slope.
Whumphing is occurring in un-skied terrain. Suspect pockets of weakness just waiting for the trigger particularly shallow spots. Cold temperatures continue to promote facetting weakening an already weak mid pack and base.&nbsp;
At low elevations the new snow is adding to loose, facetted snow sitting on a crust. Yesterday, fast sluffing while skiing steep pitches was reported. With the additional new snow these loose avalanches may gain enough mass to push you around.
There is a thick slab over a structurally weak snowpack in most areas. Avoid thin parts of a slope or rocky outcrops at tree line and above. A failure can propagate to deeper areas and cause large avalanches.
Conditions have improved since last week, and the likelihood of triggering an avalanche is reduced - however, weak layers still exist and entry into any start zone areas should be based upon knowledge of the snowpack conditions on that slope.
Trigger possible from shallow spots.
Storm slabs will continue to build through the forecast period.
Primarily a concern in steep sheltered terrain.
There is a thick slab over a structurally weak snowpack in most areas. Avoid thin parts of a slope or rocky outcrops at tree line and above. We may see increased natural activity through the storm on Friday and Saturday.
In the short term, expect heavy sloughing in alpine gullies and avoid overhead hazard.
Trigger possible from shallow spots.
Overall there is decent bridging over weaker persistent layers in the alpine, but larger triggers may wake these up. At treeline and below these persistent layers are more prominent and are down 50-70cm. 
In the short term, watch for heavy sloughing in gullies and terrain traps. This could be especially true on the ice climbs around the Field area.
Over 40cm of new snow in the past 3 days has been combined with strong southerly winds to create widespread and touchy storm slabs.  Ongoing precipitation and wind activity could enable these slabs to step down and trigger deeper instabilities.
Loose natural and skier triggered sluffs are almost certain today as snow and wind hammer Rogers Pass. The size, power and hazard posed by these slides depends directly on terrain characteristics like slope angle, terrain traps, and run out hazards.
In deeper snowpack areas found in the alpine, there is decent bridging over weaker persistent layers. Use caution in thin areas in the alpine as well as at treeline and below where human triggering remains possible.
In the short term expect loose snow to fail easily in steep terrain. Use caution in confined features or around terrain traps like cliffs. This could be especially true on the ice climbs around the Field area.
There is a thick slab over a structurally weak snowpack in most areas. Avoid thin parts of a slope or rocky outcrops at tree line and above. We may see increased natural activity through the storm on Friday and Saturday.
Watch for the new snow to fail easily in steep terrain. Use caution in confined features and around terrain traps such as cliffs.
Reactive storms slabs are building and may be up to 50cm thick by Saturday morning. If triggered these are likely to trigger deeper instabilities producing larger avalanches.
Under the additional load of ongoing snow large avalanches are expected from this layer.
Loose snow avalanche can be expected from all steep rocky features which may then channel into gulleys or trigger deeper avalanches from open slopes.
Over 65cm of new snow in the past 3 days has been combined with strong southerly winds to create widespread and touchy storm slabs. These slabs may step down and trigger deeper instabilities.
Loose natural and skier triggered sluffs are almost certain today as snow and wind hammer Rogers Pass. The size, power and hazard posed by these slides depends directly on terrain characteristics like slope angle, terrain traps, and run out hazards.
Loose snow avalanche can be expected from all steep rocky features which may then channel into gulleys or trigger deeper avalanches from open slopes.
Increased loading above this layer from the recent storm snow has produced number releases up to size 3. These are mostly from the alpine and treeline elevations and are running down to the valley bottoms.
Gusty Southwest winds have been moving the new snow around and sluffing in steep gullies was observed on Saturday. Use caution in confined gullies or above terrain traps.
Be conservative with your terrain choices, especially when entering larger, steeper features. Dig down to see if the January surface hoar or the December facets are present and take appropriate precautions if they are.
There is a thick slab over a structurally weak snowpack in most areas. Avoid thin parts of a slope or rocky outcrops at tree line and above. We are seeing increased natural activity as a result of the new snow including remote triggering.
Watch for the new snow to fail easily in steep terrain. Use caution in confined features and around terrain traps such as cliffs and gullies.
Widespread storm slabs were observed to fail at all elevations yesterday. Treat all slopes that have not failed as suspect. Keep your route to supported terrain with eyes open for natural or human-triggered avalanches.
Plenty of unconsolidated powder is available for sluffing in steep terrain. The deeper the sluff, the more power it contains to push a person into a terrain trap or over cliffs.
40cm of storm snow is forming a soft slab at treeline and above. It will remain reactive to triggering for the next few days. Where stronger winds in the alpine have transported the snow it may be up to 60cm thick.
Increased loading above this layer from the recent storm snow has produced a number of releases up to size 3. These are mostly from the alpine and treeline elevations and are running down to the valley bottoms.
There is a thick slab over a structurally weak snowpack in most areas. Avoid thin parts of a slope or rocky outcrops at tree line and above. We are seeing increased natural activity as a result of the new snow including remote triggering.
Be conservative with your terrain choices, especially when entering larger, steeper features. Dig down to see if the January surface hoar or the December facets are present and take appropriate precautions if they are.
Widespread storm slabs were observed to fail at all elevations yesterday. Treat all slopes that have not failed as suspect. Field teams yesterday noted low elevation slabs below treeline were still reactive aswell.
40cm of storm snow is forming a soft slab at treeline and above. It will remain reactive to triggering for the next few days. Where stronger winds in the alpine have transported the snow it may be up to 60cm thick.
Increased loading above this layer from the recent storm snow has produced a number of releases up to size 3. These are mostly from the alpine and treeline elevations and are running down to the valley bottoms.
The entire upper half of the snowpack overlies a structurally weak base. Avoid thin parts of a slope or rocky outcrops at tree line and above. where triggering of this problem is most likely.
Several buried persistent weak layers exist in the middle of the snowpack - ensure that you know if they exist or not in your area, and the only way to check for this is to dig a test snow profile, find the layer, then test its strength,.
Widespread storm slabs were observed to fail at all elevations Sunday.  The storm slab needs time to bond to the old snow surface. Features that have not failed should be given a very cautious approach. 
40cm of storm snow is forming a soft slab at treeline and above. It will remain reactive to triggering for the next few days. Where stronger winds in the alpine have transported the snow it may be up to 60cm thick.
Increased loading above this layer from the recent storm snow has produced a number of releases up to size 3. These are mostly from the alpine and treeline elevations and are running down to the valley bottoms.
The entire upper half of the snowpack overlies a structurally weak base. Avoid thin parts of a slope or rocky outcrops at tree line and above. where triggering of this problem is most likely.
Several buried persistent weak layers exist in the middle of the snowpack - ensure that you know if they exist or not in your area, and the only way to check for this is to dig a test snow profile, find the layer, then test its strength,.
Storm slab formation has been widespread and through all elevations. However its susceptibility to human triggering is highly variable. The bond to the old snow surface of crusts and facets is questionable.
45cm of storm snow from March 3 has evolved into a soft slab and melded in many locations to the midpack below. South TL aspects the new snow was found resting on a decomposing surface hoar layer on a crust about 30cm down. It tested unstable.
March 3rd 45cm of new snow load produced size 3's. This activity has subsided. They were from the alpine and treeline elevations running to valley bottoms. One should consider it a concern if the persistent slab above is initiated and steps down. 
The entire upper half of the snowpack overlies a structurally weak base. Avoid thin parts of a slope or rocky outcrops at tree line and above. where triggering of this problem is most likely.
Several buried weak layers in the middle of the snowpack are gaining strength over time as they become bridged, especially in the deeper areas closer to the Wapta.  Dig down to see if they are present on your line, and how they are reacting.
These will be a problem in areas sheltered from the wind, especially in confined features like gullys. The problem will grow in proportion to new snow amounts.
Buried crusts on solar aspects are hidden under the march snow. A snow profile yesterday on a south aspect showed the storm snow bonding to the crust, however skiers were able to trigger slab avalanches on this layer earlier in the week.
The entire snowpack is built upon a structurally weak base, which produces very large avalanches when triggered. There is tremendous uncertainty with this sort of condition, and the only way to hedge against it is to avoid the big avalanche terrain.
Several buried weak layers in the middle of the snowpack are gaining strength over time as they become bridged, especially in the deeper areas closer to the Wapta. Dig down to see if they are present on your line, and how they are reacting.
45cm of storm snow from March 3 has evolved into a soft slab and melded in many locations to the midpack below. South TL aspects the new snow was found resting on a decomposing surface hoar layer on a crust about 30cm down. It tested unstable.
March 3rd 45cm of new snow load produced size 3's. This activity has subsided. They were from the alpine and treeline elevations running to valley bottoms. One should consider it a concern if the persistent slab is initiated and steps down.
Incremental loading this week + 15cm of new snow last night and warming temps today is producing a touchy storm. This storm slab can step down to deeper layers and run full path, which has already occurred this am in the HWY corridor!</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Buried crusts on solar aspects are hidden under the march snow. Skiers were able to trigger slab avalanches on this layer earlier in the week and yesterday.
The entire snowpack is built upon a structurally weak base, which produces very large avalanches when triggered. There is tremendous uncertainty with this sort of condition, and the only way to hedge against it is to avoid the big avalanche terrain.
Persistent mid-pack slab condition has been developing all season. Various wind and facet layers exist. Spatial variability exists with thick and thin snowpack areas.  </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Natural activity has subsided but don't let your guard down. It remains a major concern with a extremely weak base of depth hoar. Trigger spots would be shallow zones or a step down effect if upper layers are initiated.
Several buried weak layers in the middle of the snowpack are gaining strength over time as they become bridged, especially in the deeper areas closer to the Wapta. Dig down to see if they are present on your line, and how they are reacting.
Storm Slabs will be touchy. Pay special attention to Treeline and Alpine slopes lee to SW winds - slabs will continue to grow on these slopes. Avoid steep slopes where wind transported snow is being deposited.
These will be a problem in areas sheltered from the wind, especially in confined features, like gullys.
Steady snowfall this week (+15cm of new snow again last night) and warming temps today have produced a touchy storm. Yesterday this storm slab was able to step down to deeper layers and ran full path.
Buried crusts on South and West aspects are hidden under the march snow. Skiers were able to trigger slab avalanches on this layer earlier in the week.&nbsp; Take time to assess the how the snow is bonding when moving onto solar aspects
The entire snowpack is built upon a structurally weak base, which produces very large avalanches when triggered. There is tremendous uncertainty with this sort of condition, and the only way to hedge against it is to avoid the big avalanche terrain.
Persistent mid-pack slab condition continuing to surprise, and not the good kind of surprise! Like triggering an unseen overhead feature; Surprise!
Natural activity has subsided but don't let your guard down. It remains a major concern with a extremely weak base of depth hoar. Trigger spots would be shallow zones or a step down effect if upper layers are initiated.
Several buried weak layers in the middle of the snowpack are gaining strength over time as they become bridged, especially in the deeper areas closer to the Wapta. Dig down to see if they are present on your line, and how they are reacting.
Steady snowfall this week (70cm in 3 days) and warming temps today have produced a touchy storm. Yesterday this storm slab was able to step down to deeper layers and ran full path.
Buried crusts on South and West aspects are hidden under the March snow. Skiers were able to trigger slab avalanches on this layer earlier in the week. Recent storm snow has a high potential to dig down and trigger these deeper slabs.
The entire snowpack is built upon a structurally weak base, which can produce very large avalanches. Recently, large deep persistent slabs have been observed, suggesting that likelihood of triggering is increasing.
Natural activity has subsided but don't let your guard down. It remains a major concern with a extremely weak base of depth hoar. Trigger spots would be shallow zones or a step down effect if upper layers are initiated.
Several buried weak layers in the middle of the snowpack are gaining strength over time as they become bridged, especially in the deeper areas closer to the Wapta. Dig down to see if they are present on your line, and how they are reacting.
Steady snowfall this week (70cm in 3 days) and warming temps today have produced a touchy storm. Yesterday this storm slab was very reactive and resulted in numerous full path avalanches.
Buried crusts on South and West aspects are hidden under the March snow. Skiers were able to trigger slab avalanches on this layer earlier in the week. Recent storm snow has a high potential to dig down and trigger these deeper slabs.
The entire snowpack is built upon a structurally weak base, which can produce very large avalanches. Recently, large deep persistent slabs have been observed. This situation will be slow to improve.
Several buried weak layers in the middle of the snowpack are gaining strength over time as they become bridged, especially in the deeper areas closer to the Wapta. Dig down to see if they are present on your line, and how they are reacting.
Expect an increase in loose wet surface avalanches particularly when the sun comes out, temperatures remain warm, or rain occurs. Rising freezing levels will increase this danger at all elevations. Use caution around terrain traps.
Natural activity has subsided but don't let your guard down. It remains a major concern with a extremely weak base of depth hoar. Trigger spots would be shallow zones or a step down effect if upper layers are initiated.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B"> 80cm of recent snowfall and warming temps yesterday and today are forming a </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/20170313%20Mounds.JPG" target="_blank"><span class="s_9255B882">reactive storm slab</span></a><span class="s_AA239A9B">. Numerous full path avalanches have occurred in the last 48hrs.
Buried crusts on solar aspects are hidden under our recent storm snow. Skiers were able to trigger slab avalanches on this layer earlier in the week. Avalanches triggered in the storm snow have a high probability to overload this layer.
The entire snowpack is built upon a structurally weak base, which is producing very large avalanches. Large deep persistent slabs have been observed on Tuesday and some are running into the valley bottom.
Several buried weak layers in the middle of the snowpack are gaining strength over time as they become bridged, but they may be waking back up during this avalanche cycle. Avoid avalanche terrain now.
Expect an increase in loose surface avalanches particularly as more snow is arriving and rain in valley. Once storm passes, it will become active particularly when the sun comes out. Use caution around terrain traps.
Natural activity expected and will be a major concern with the extremely weak base of depth hoar. Trigger spots would be shallow zones or a step down effect if upper layers are initiated.
Rain below 2100m on Tuesday and Wednesday will have a destabilizing effect on the snowpack. If the snow feels wet and punchy, avoid steep slopes.
The recent storm snow is rapidly settling into a touchy storm slab, sensitive to both natural and human triggering. The slabs may be more touchy on recently loaded lee features.
Several persistent weak layers are in the upper snowpack. There is step down potential for storm slab releases to dig down to these layers resulting in large dangerous avalanches.
The entire snowpack is built upon a structurally weak base, which is producing very large avalanches. Large deep persistent slabs have been observed and some are running into the valley bottom.
With cooling temperatures the activity from this layer will decrease at treeline as the day progresses.
With additional snow loading, rain  and warm temperatures this problem has become reactive producing full path releases 
Several buried weak layers in the middle of the snowpack are gaining strength over time as they become bridged, but they may be waking back up during this avalanche cycle. Avoid avalanche terrain now.
Substantial snow and rain fell over the last 6 days! Rain on new snow then more new snow is a perfect combination for avalanches! Once commenced these storm slabs can step down to deeper layers in the snow pack, resulting in full depth avalanches.
Rain soaked snow yesterday will have penetrated deep into the snowpack, lubricating the deeper persistent layers of concern. As the storm slabs fail above these layers it will easily step down to the Feb 28th interface and deeper.
The entire snowpack is built upon a structurally weak base, which has been overloaded by new snow and previous rain.  Large deep persistent slabs have been observed and are running well into avalanche runouts.
In the short term with this much snow hanging around sluffing in steep terrain and gullies will be occurring. 
Several buried weak layers in the middle of the snowpack are being reactive again during this avalanche cycle. Avoid avalanche terrain now.
With all the new snow kicking around gullies and steep terrain will be sluffing over the short term.
Rain to Treeline on Saturday will destabilize the snowpack. If the snow feels wet and punchy, avoid steep slopes. Isolated Wet Slab avalanches are also expected through the weekend. These are harder to predict.
Additional loading on a weak base is producing large natural avalanches.
Heavy precipitation combined with wind and warm temperatures have formed reactive storm slabs at all elevations. Although natural avalanche activity has subsided, these slabs remain triggerable by human loads!
Persistent deep layers made a triumphant return during our most recent avalanche cycle and they remain a cause for concern. As surface instabilities fail, avalanches can easily step down weak layers from late February.
Recent rain events have saturated the snowpack at lower elevations. Although a thin surface crust formed from last night's cooler temperatures, it does not add enough strength to eliminate the problem of loose wet avalanches below tree line.
The entire snowpack is built upon a structurally weak base, which has been overloaded by new snow and previous rain. This problem will remain touchy with the next incoming storm Saturday.
With freezing levels to 2000m Friday, loose, wet avalanches can't be ruled out. Steep, cliffed terrain and gullies will be likely areas.
Several buried weak layers in the middle of the snowpack have become reactive again this week and should remain that way through this weekend.  Once triggered, these will be very large in magnitude. 
With rain possible to 2000m on Saturday, loose wet avalanches can't be counted out. Gully terrain and steep cliffs will be likely areas. Climbers take note.
Rain to treeline and warm temperatures will produce numerous avalanches of this type. Some of these will step down to ground producing full path releases.
The widespread observations of large and deep avalanches indicates strongly that many of these events are from this instability. Increased loading and warm temperatures will keep this layer active.
Heavy precipitation combined with wind and warm temperatures have formed reactive storm slabs at all elevations. Added snowfall from last night and today will see these slabs become more active once again.
Arial';font-style: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><a href="https://www.facebook.com/ParksMountainSafety/photos/a.1122932427756745.1073741905.145133538869977/1250972184952768/?type=3&amp;theater" target="_blank"><span class="s_9255B882">Persistent deep layers</span></a><span class="s_AA239A9B"> made a triumphant return during our most recent avalanche cycle and they remain a cause for concern. As surface instabilities fail, avalanches can easily step down to weak layers from late February.
Rain to treeline and warm temperatures will produce numerous avalanches of this type. Some of these will step down to ground producing full path releases.
The widespread observations of large and deep avalanches indicates strongly that many of these events are from this instability. Increased loading and warm temperatures will keep this layer active.
The entire snowpack is built upon a structurally weak base, which has been overloaded by new snow and previous rain. Large avalanches are reaching historical run outs and crossing cross country ski trails.
With freezing levels in excess of 2200m Saturday, the surface snow at lower elevations has been failing naturally. Deeper avalanches could be triggered by these events as the entire snowpack has lost strength and will take some time to refreeze.
Several buried weak layers in the middle of the snowpack have become reactive again this week and should remain that way through this weekend. Once triggered, these will be very large in magnitude.
With freezing levels in excess of 2200m Saturday, the surface snow at lower elevations has been failing naturally. The entire snowpack has lost strength and will take some time to refreeze. Climbers: these events are very likely in gullies and cliffs
The snowpack is waterlogged Below Treeline. Wet slabs remain a possibility for Sunday: water in the snowpack has pooled above several midpack crusts.  These may act as failure plane.  Dig to look for the ingredients: wet layers below a drier slab.
Heavy snowfall and extreme SW winds formed reactive storm slabs at tree-line and alpine elevations. These overlie various weak interfaces in the upper snowpack and need time to readjust to the new load.
Arial';font-style: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><a href="https://www.facebook.com/ParksMountainSafety/photos/a.1122932427756745.1073741905.145133538869977/1250972184952768/?type=3&amp;theater" target="_blank"><span class="s_9255B882">Persistent deep layers</span></a><span class="s_AA239A9B"> made a triumphant return during our most recent avalanche cycle and they remain a cause for concern. As surface instabilities fail, avalanches can easily step down to weak layers from late February, or deeper in shallow areas.
The widespread observations of large and deep avalanches indicates strongly that many of these events are from this instability. Increased loading and warm temperatures will keep this layer active.
The entire snowpack is built upon a structurally weak base, which has been overloaded by new snow and previous rain. Large avalanches are reaching historical run outs and crossing cross country ski trails.
With freezing levels in excess of 2200m Saturday, the snowpack at lower elevations lost strength. As this snow refreezes, moist snow remains under surface crusts which large avalanches from upper elevations can entrain to reach surprising distances.
Several buried weak layers in the middle of the snowpack have become reactive again as they have been overloaded by recent snow and rain. Large avalanches are reaching historical run outs and crossing cross country ski trails.
With freezing levels in excess of 2200m Saturday, the snowpack at lower elevations lost strength. As this snow refreezes, moist snow remains under surface crusts which large avalanches from upper elevations can entrain to reach surprising distances.
Arial';font-style: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><a href="https://www.facebook.com/ParksMountainSafety/photos/a.1122932427756745.1073741905.145133538869977/1250972184952768/?type=3&amp;theater" target="_blank"><span class="s_9255B882">Persistent deep layers</span></a><span class="s_AA239A9B"> made a triumphant return during our most recent avalanche cycle and they remain a cause for concern. As surface slabs fail, avalanches can easily step down to weak layers from late February, or deeper in shallow areas.
The entire snowpack is built upon a structurally weak base of facets. Large avalanches are reaching historical run outs and crossing valley bottom trails. Avoid exposure to overhead hazard and stick to moderate angled supported terrain.
Warming temperatures may create conditions for loose wet avalanches at lower elevations and on steep solar aspects over the next couple of days.
Several buried weak layers in the middle and lower parts of the snowpack have become reactive again as they have been overloaded by recent snow and rain. Large avalanches are reaching historical run outs and crossing valley bottom trails.
With warming temperatures we may start to see loose wet avalanches at lower elevations and on steep solar aspects over the next couple of days. Watch for clues like snowballing that indicate that the snow surface is warming.
The widespread observations of large and deep avalanches indicates strongly that many of the weekends avalanches went on this layer particularly where the snowpack is shallow and in rocky start zones.
It is an impressive and humbling time to be traveling in the back-country. Very large avalanches have been occurring, even logging mature timber. The scary thing is, these large avalanches continue to occur sporadically and are very hard to predict.
The widespread observations of large and deep avalanches indicates strongly that many of the weekends avalanches went on this layer particularly where the snowpack is shallow and in rocky start zones.
The entire snowpack is built upon a structurally weak base of facets. Large avalanches are reaching historical run outs and crossing valley bottom trails. Avoid exposure to overhead hazard and stick to moderate angled supported terrain.
Several buried weak layers in the middle and lower parts of the snowpack have become reactive again as they have been overloaded by recent snow and rain. Large avalanches are reaching historical run outs and crossing valley bottom trails.
With warming temperatures we may start to see loose wet avalanches at lower elevations and on steep solar aspects over the next couple of days. Watch for clues like snowballing that indicate that the snow surface is warming.
It is an impressive and humbling time to be traveling in the back-country. Very large avalanches have been occurring, even logging mature timber. These large avalanches continue to occur sporadically and are very hard to predict.
The widespread observations and explosive work creating large and deep avalanches indicates that many went on this deep layer particularly where the snowpack is shallow and in rocky start zones. Involvement in one would be fatal consequences.
Large avalanches continue to run to the valley bottoms and cross popular trails. We show this problem as being below treeline not because you can trigger an avalanche, but because you can be hit by one from above.&nbsp; Watch out for overhead hazard!
Several buried weak layers in the middle and lower parts of the snowpack have become reactive again as they have been overloaded by recent snow and rain. Large avalanches are reaching historical run outs and crossing valley bottom trails.
With warming temperatures we may start to see loose wet avalanches at lower elevations and on steep solar aspects over the next couple of days. Watch for clues like snowballing that indicate that the snow surface is warming.
The month of March has been characterized by heavy loading of new snow and rain. These events have created an instable snowpack that is verging on a tipping point. Deep weak layers have been failing sporadically leading to large avalanches.
The lower snowpack is riddled with weaknesses particularly where the&nbsp; snow&nbsp; is shallow over rocky terrain.&nbsp; Today a&nbsp; large cornice failure triggered a size 3 slab on a NE treeline feature. Debris is running far into the valley bottom.
The month of March has been characterized by heavy loading of new snow and rain.  After an intense avalanche cycle, the snow pack is still stabilizing. Deep weak layers have been failing sporadically leading to large avalanches.
Natural activity is starting to taper, but the snowpack is still very weak. Most days this week, we have seen large avalanches running to valley bottom on this layer. Don't expose yourself to any avalanche terrain that hasn't recently avalanched.
Several buried weak layers in the middle and lower parts of the snowpack have been reactive in the last week as they were overloaded by snow and rain. Many large avalanches have run to historical run outs and crossed valley bottom trails.
The lower snowpack is weak with a crust from November surrounded by loose facets and depth hoar. This weakness is most developed in shallow snow with rocky terrain. A cornice failure triggered a size 3 on a NE treeline feature near Parkers ridge.
The month of March has been characterized by heavy loading of new snow and rain. After an intense avalanche cycle, the snow pack is still stabilizing. Deep weak layers have been failing sporadically leading to large avalanches.
Strong solar inputs and increased daytime highs will deteriorate the snowpack structures below tree line. Take note of overnight refreezes, and strength of the sun effect on steep solar aspects.
-style: Normal;font-weight: normal;font-size: 13.3333333333333px;color: #000000; } 
.s_E6FD2046 { font-family: 'Verdana';font-style: Normal;font-weight: normal;font-size: 16px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_EB2EB4FA"> </span><span class="s_3FE45715">Strong solar inputs and increased daytime highs will deteriorate the snowpack structures below tree line. Take note of overnight refreezes, and strength of the sun effect on steep solar aspects.</span><span class="s_E6FD2
The month of March has been characterized by heavy loading of new snow and rain. After an intense avalanche cycle, the snow pack is still stabilizing. Deep weak layers have been failing sporadically leading to large avalanches.
Spring is here! With daytime or solar warming the upper snowpack is becoming moist in the afternoon.  This moist slab is touchy below 1900m where a crust down 30 is providing a good bed surface for wet avalanches.
Increased daytime temperatures will result in a deteriorating snowpack structure below tree line. Keep a close eye on temperatures changes throughout the day, and the strength of solar inputs on steep solar aspects.
="s_3FE45715">Increased daytime temperatures will result in a deteriorating snowpack structure below tree line. Keep a close eye on temperatures changes throughout the day, and the strength of solar inputs on steep solar aspects.
Warming temperatures can cause new snow over crusts to quickly become touchy and slide easily as loose wet or moist slab avalanches.
Warming temperatures can cause new snow over crusts to quickly become touchy and slide easily as loose wet or moist slab avalanches.
No crust recovery overnight and new snow will insulate the upper snowpack at lower elevations. If the sun comes out today, this problem will reach high into tree line and could trigger wet slabs or glide avalanches.
The snowpack throughout the region has a weak base and remains suspect. Approach all avalanche terrain with suspicion and exercise conservative route choices.  This problem will persist for the foreseeable future.
We wont likely see a great freeze Friday morning, and looks like we may see a decent amount of sun, especially in the East part of the region (Banff).  Watch locally for the amount of warming as we start the transition into spring conditions. 
No expectations for activity first thing in the morning but, as the day progresses expect to see snowballing, and loose slides on solar aspects at TL and below.
A decent freeze is possible in the Little Yoho region, but the forecast for clearing skies will heat up solar aspects as we transition slowly into spring.&nbsp;
Warm temps overnight and new snow will insulate the moist upper snowpack at treeline and below. When the sun comes out today, expect avalanche activity to increase on solar asps with potential for wet slabs or glide avalanches.
The snowpack throughout the region has a weak base and remains suspect. Approach all avalanche terrain with suspicion and exercise conservative route choices. This problem will persist for the foreseeable future.
Warm temps yesterday and new snow overnight will insulate the moist upper snowpack. If the precip continues into the afternoon we can expect rain at lower elevations which will increase the potential for wet slabs or glide avalanches.
The snowpack throughout the region has a weak base and remains suspect. Approach all avalanche terrain with suspicion and exercise conservative route choices. This problem will persist for the foreseeable future.
There was little to no refreeze last night below tree-line. The new snow overnight will insulate the moist upper snowpack at low elevations. Sunny periods today will stress it and increase the potential for wet slabs or glide avalanches.
The snowpack throughout the region has a weak base and remains suspect. Approach all avalanche terrain with suspicion and exercise conservative route choices. This problem will persist for the foreseeable future.
New snow over old crusty surfaces will likely produce small natural avalanches with daytime warming and/or solar input.
Prolonged solar radiation and rising freezing levels with weaken the snowpack on South and West aspects, especially around steep and rocky areas.
The snowpack throughout the region has a weak base and remains suspect. Approach all avalanche terrain with suspicion and exercise conservative route choices. This problem will persist for the foreseeable future.
Pay attention to day time warming. Sunny skies and warm temperatures are increasing the avalanche hazard on sun exposed slopes in the afternoon.
Pay attention to day time warming. Sunny skies and warm temperatures are increasing the avalanche hazard on sun exposed slopes in the afternoon.
Prolonged solar radiation and rising freezing levels with weaken the snowpack on South and West aspects, especially around steep and rocky areas.
The snowpack throughout the region has a weak base and remains suspect. Approach all avalanche terrain with suspicion and exercise conservative route choices. This problem will persist for the foreseeable future.
New snow over old crusty surfaces will likely produce small natural avalanches with daytime warming or when rainfall commences.
Persistent weak layers deep in the snowpack continue to cause uncertainty, despite the surface layers being remarkably strong. Continue to avoid exposure to large slopes. Patience is a virtue as we wait for a melt/freeze cycle to change anything.
Wet snow flows like water in gullies during warm spring days, and the next few days we expect wet snow avalanches to be common in gully areas at and below treeline. Ice climbers - avoid steep low elevation gullies.
The snowpack is generally unstable, despite the strong feel of the surface layers. This next warm-up will again test the snowpack and we expect increased avalanche activity over the next several days. Patience is a virtue with this kind of problem.
Wet snow flows like water in gullies during warm spring days, and the next few days we expect wet snow avalanches to be common in gully areas at and below treeline. Ice climbers - avoid steep low elevation gullies.
At treeline and below, rain is saturating the snow that overlies a series of crusts. This wet snow will be easily triggered, is expected to run far on the crust and even if small, wet avalanches are powerful.
Friday will be warm and 7-10mm of rain below 2200m. This has potential to initiate the loose wet avalanche problem especially around steep and rocky areas. Caution is warranted for ice climbers in gully terrain.
The snowpack is generally unstable, despite the strong feel of the surface layers. This warm-up is again testing the snowpack and we expect increased avalanche activity. Patience is a virtue with this kind of problem.
Wet snow flows like water in gullies during warm spring days, and the next few days we expect wet snow avalanches to be common in gully areas at and below treeline. Ice climbers - avoid steep low elevation gullies.
Persistent weak layers deep in the snowpack continue to cause uncertainty, despite the surface layers being remarkably strong. Continue to avoid exposure to large slopes. Patience is a virtue as we wait for a melt/freeze cycle to change anything.
Wet snow flows like water in gullies during warm spring days, and the next few days we expect wet snow avalanches to be common in gully areas at and below treeline. Ice climbers - avoid steep low elevation gullies.
New snow over old crusty surfaces will likely produce small natural avalanches with daytime warming or when rainfall commences.
At treeline and below, rain has saturated the snow that overlies a series of crusts. Warm overnight temps are keeping the snow weak. This wet snow will be easily triggered and will run far on the crust. Even if small, wet avalanches are powerful.
This problem will be reduced next few days as temperatures get cooler ; however, light rain may continue on Saturday. Keep this on your radar. Caution is warranted for ice climbers in gullies.
The snowpack is generally unstable, despite the strong feel of the surface layers. This layer remains reactive in snowpack test and can produced large avalanches. Patience is a virtue with this kind of problem.
Wet snow flows like water in gullies during warm days, this problem becomes more predominant with daytime warming and rain. Steep gully features and thin rocky areas are the spots to avoid when this problems reactivity increases through the day.
Persistent weak layers deep in the snowpack continue to cause uncertainty, despite the surface layers being remarkably strong. Continue to avoid exposure to large slopes. Patience is a virtue as we wait for a melt/freeze cycle to change anything.
Wet snow flows like water in gullies during warm spring days, and the next few days we expect wet snow avalanches to be common in gully areas below treeline. Ice climbers - avoid steep low elevation gullies.
At treeline and below, rain has saturated the snow that overlies a series of crusts. Warm temps are keeping the snow weak. Today's solar input will increase this hazard. This wet snow will be easily triggered and will run far on the crust.
The snowpack is generally unstable, despite the strong feel of the surface layers. This layer remains reactive in snowpack test and can produced large avalanches. Patience is a virtue with this kind of problem.
The snowpack is generally unstable, despite the strong feel of the surface layers. This layer remains reactive in snowpack test and can produced large avalanches. Patience is a virtue with this kind of problem.
At treeline and below, rain has saturated the snow that overlies a series of crusts. The refreeze overnight will break down with day-time warming, and solar input will rapidly weaken the crust during sunny periods.
New snow over old crusty surfaces may produce small natural avalanches with daytime warming.
The snowpack is generally unstable, despite the strong feel of the surface layers. This layer remains reactive in snowpack test and can produced large avalanches. Patience is a virtue with this kind of problem.
Sunny skies tomorrow may induce a solar cycle on South-East through West aspects at treeline and below.
Isothermal conditions possible as melt freeze breaks down by late morning.
The snowpack is generally unstable, despite the strong feel of the surface layers. This layer remains reactive in snowpack test and can produced large avalanches. Patience is a virtue with this kind of problem.
Recent storm snow and potential for solar radiation tomorrow may induce loose wet avalanches on SE through W aspects tomorrow at treeline and below.
Isothermal conditions are possible as crusts break down by late morning. Gauge the extent of the overnight freeze relative to how quick it will move into being reactive. 
Isothermal conditions are possible as crusts break down by late morning. Gauge the extent of the overnight freeze relative to how quick it will move into being reactive.
Isothermal conditions are possible as crusts break down by late morning. Gauge the extent of the overnight freeze relative to how quick it will move into being reactive.
Loose Wet avalanches are possible on steep slopes on SUNDAY, as strong April Sun warms recent, soft surface snow. Expect this to be most pronounced were the most new snow lies: Easterly aspects/upper elevations in the Western portions of the park.
The steady accumulation of new snow is settling into a reactive storm slab. It will be most reactive at ridgetop and in steep unsupported terrain. Expect avalanches to be run fast and to the bottom of run-outs. Be aware of overhead exposure!
Settling new snow and wind at ridgetop has created a reactive soft slab.&nbsp; Compression tests yesterday showed shears in the storm snow down 15 &amp; 30cm. In steep alpine terrain avalanches may run to the bottom of run-outs. Be aware of overhead exposure!
50cm of low density storm snow has delivered excellent riding conditions. For the most part sluff accumulation is manageable but use caution if you are stepping out into steeper, committing terrain.
Although this deeply buried crust, on which this weakness beds, is widespread we think that it will be at its most reactive on solar facing slopes. Thursdays weather is abnormally warm and its effect on the snowpack will be to destabilize it.
Solar input and unusually high temperatures are expected to result in loose moist slides on steeper solar aspects today. Larger loose slides have the potential to entrain snow and step down to deeper persistent layers. Don't be caught off guard.
Solar triggering is possible on steep south facing slopes creating large full path avalanches.
Solar triggering is possible on steep south facing slopes creating large avalanches.
Solar triggering is possible on steep south facing slopes.
Solar triggering is possible on steep south facing slopes.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">After a long dry spell, 15cm of new snow has fallen on </span><span class="s_2823317B">widespread surface hoar. </span><span class="s_AA239A9B">Another 25 is expected today! As this new snow settles into a cohesive slab, expect to see avalanche hazard spike! Also expect sluff to be heavy and fast!
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">After a long dry spell, 40cm of new snow has fallen on </span><span class="s_2823317B">widespread surface hoar.  </span><span class="s_AA239A9B">As this new snow settles into a cohesive slab, expect to see it become more reactive.  SW winds in the 30-45kph range have built windslab in the alpine.
20-30 cm of loose, dry snow fell on sunday night. It landed on very weak facets and surface hoar and will sluff easily in steep terrain.&nbsp; Ice climbers should pay special attention where the consequences of a sluff can be severe.
Yesterday's storm snow is settling into a slab. It will be reactive in windy areas in the Alpine and exposed areas at Tree Line. Steep solar asp will be problematic, as there will be a crust under our slab and a Surface Hoar/Facet combo BTL.
Climbers in steep gullies be prepared for spindrift and loose snow running down the climb. Put in lots of ice screws. Any avalanches will likely be small, but could knock you off your feet.
Climbers in steep gullies be prepared for spindrift and loose snow running down the climb. Put in lots of ice screws. Any avalanches will likely be small, but could knock you off your feet.
Recent storm snow continues to settle into a slab.  Expect the slab to be increasingly sensitivity as you transition into wind effected terrain. Steeper solar slopes harbor a thin crust layer below the storm snow and a facet surface hoar combo BTL.
Climbers in steep gullies be prepared for spindrift and loose snow running down the climb. Put in lots of ice screws. Any avalanches will likely be small, but could knock you off your feet.
The winds have been a bit unpredictable and gusty. Plumes in Yoho yesterday from the north and from the east. Yoho Blow likely to build winslabs on low elevation ice climbs.
Climbers in steep gullies be prepared for spindrift and loose snow running down the climb. Put in lots of ice screws. Any avalanches will likely be small, but could knock you off your feet.
Recent storm snow is shifting into a settled persistent slab. Expect the slab to be increasingly sensitivity as you transition into wind effected terrain. Steeper solar slopes harbor a thin crust layer below slab and a facet surface hoar combo BTL.
Recent storm snow is settling into a persistent slab. Expect the slab to be increasingly sensitivity as you transition into steep and/or wind effected terrain. Solar aspects harbor a thin crust layer below the slab and a facet surface hoar combo BTL.
Recent storm snow is settling into a persistent slab. Expect the slab to be more sensitive as you transition into steep and/or wind effected terrain.&nbsp; South and West aspects have a thin crust layer below the slab and a facet/surface hoar combo BTL.
Recent storm snow is settling into a persistent slab which sits on the Dec 15 surface hoar. Expect the slab to be more sensitive as you transition into steep and/or wind effected terrain. Solar aspects have a thin crust layer below the slab.
40-50cm of snow is settling into a persistent slab which sits on the Dec 15 surface hoar. Expect the slab to be more reactive as you transition into steep and/or wind effected terrain. Solar aspects have a thin crust layer below the slab.
Strong winds have scoured wind exposed terrain down to valley bottom. Wind slabs could likely be found on immediate lee slopes at all elevations.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
30-50cm of snow is settling into a persistent slab which sits on the Dec 15 surface hoar. Expect the slab to be more reactive as you transition into steep and/or wind effected terrain. Solar aspects have a thin crust layer below the slab.
30-50cm of snow is settling into a persistent slab which sits on the Dec 15 surface hoar. Expect the slab to be more reactive as you transition into steep and/or wind effected terrain. Solar aspects have a thin crust layer below the slab.
40cm+ of snow is settling into a persistent slab which sits on the Dec 15 surface hoar. Expect the slab to possibly be reactive on steep unsupported and/or wind effected terrain. Solar aspects have a thin crust layer below the slab.
With 20cm of new cold dry powder, natural and human triggered avalanches are expected in steep terrain. It is possible for small loose avalanches to trigger deeper instabilities, especially near ridge lines or where Dec 15 surface hoar is preserved.
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from gaining cohesion, but it may be reactive on steep unsupported and/or wind affected terrain.
Deep surface snow with little cohesion is draped across the park.  A puff of wind, spike of sun, or your own wading could be enough to set it in motion.
Exposed areas saw wind transport Thursday night, and may do on Friday night also - just enough to set up isolated storm slabs in unusual (South and West facing) lee features.  These could be reactive; particularly on Saturday, and during midday sun.
The 30cms of recent storm snow will remain touchy for loose avalanches in steep terrain. With all the available fetch, strong Northerly winds will have created soft slabs on lee slopes.&nbsp; Avalanches will have the potential to reach runouts today.
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from gaining cohesion, but it may be reactive on steep unsupported and/or wind affected terrain.
The 25cms of recent storm snow along with the available fetch and recent strong winds will have created pockets of slab on lee slopes. Based on observations yesterday, avalanches have the potential to reach out into runout zones.
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from gaining cohesion, but it may be reactive on steep unsupported and/or wind affected terrain.
The 25cms of recent storm snow along with the available fetch and recent strong winds will have created pockets of slab on lee slopes. Based on observations Dec 30, avalanches have the potential to reach out into runout zones.
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from gaining cohesion, but a warming trend may make it more reactive especially on steep unsupported and/or wind affected terrain.
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from gaining cohesion, but today's warming trend may make it more reactive especially on steep unsupported terrain.
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from settling and gaining cohesion, limiting natural and skier triggered avalanches so far.
The cold temperatures have facetted the surface snow, and sluffs can pick up mass and travel far. Big sluffs are possible if you are climbing in gullies with steep terrain above, or skiing steep lines. Heads up on solar aspects in particular
The cold temperatures have facetted the surface snow, and sluffs can pick up mass and travel far. Big sluffs are possible if you are climbing in gullies with steep terrain above, or skiing steep lines. Heads up on solar aspects in particular
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from settling and gaining cohesion however this is expected to change with the warming trend.
The cold temperatures have facetted the surface snow, and sluffs can pick up mass and travel far. Big sluffs are possible if you are climbing in gullies with steep terrain above, or skiing steep lines. Heads up on solar aspects in particular.
The cold temperatures have facetted the surface snow, and sluffs can pick up mass and travel far. Big sluffs are possible if you are climbing in gullies with steep terrain above, or skiing steep lines. Heads up on solar aspects in particular
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from settling and gaining cohesion; however, this is expected to change as temperatures rise and new snow load is added.
Watch for small wet avalanches from steep and rocky terrain in the sun.
Strong winds have deposited snow into gullies and bowls
The cold temperatures have facetted the surface snow, and sluffs can pick up mass and travel far. Big sluffs are possible if you are climbing in gullies with steep terrain above, or skiing steep lines. Heads up on solar aspects in particular.
The cold temperatures have facetted the surface snow, and sluffs can pick up mass and travel far. Big sluffs are possible if you are climbing in gullies with steep terrain above, or skiing steep lines. Heads up on solar aspects in particular
The December 15 surface hoar layer is widespread around treeline and buried 60cm. Cold temps have kept the slab from settling and gaining cohesion; however, this could change as temperatures rise and new snow load is added.
Loose snow will continue to be a problem in steep rocky areas and gullies until the facets round out a bit.
Loose snow will continue to be a problem in steep rocky areas and gullies until the facets round out a bit.
The Dec 15 and Dec 27 surface hoar layers are widespread around tree line and buried ~60cm and ~30cm respectively. Warmer temps have promoted settlement of the upper snow pack, these layers may become reactive with additional load.
Loose dry surface snow avalanches will continue to be a problem in steep rocky areas and gullies until the facets round out and begin to bond better.
="s_3FE45715">Main concern is for weak, unconsolidated snow on steep rocky features as well as areas in the alpine where a small sluff can build mass.
Loose dry surface snow avalanches will continue to be a problem in steep rocky areas and gullies until the facets round out and begin to bond better.
30cm of snow over the past 48hrs is settling into a soft slab with warm winters temps (-1 to -5). The Jan 4 surface hoar is down ~35cm and found to be up to 15mm in size. If triggered, small avalanches could initiate deeper layers.
The Dec 15 and Dec 27 surface hoar layers are widespread around tree line and buried ~80cm and ~50cm respectively. Warmer temps have promoted settlement of the upper snow pack, these layers may become reactive with the recent storm snow.
Caution when the new snow becomes stiff and develops into a slab.
Loose dry surface snow avalanches will continue to be a problem in steep rocky areas and gullies until the facets round out and begin to bond better. Additionally, we have small amounts of new low density snow adding to the problem.
Loose dry surface snow avalanches will continue to be a problem in steep rocky areas and gullies until the facets round out and begin to bond better. Additionally, we have small amounts of new low density snow adding to the problem.
="s_3FE45715">The upper layers of the snowpack have become weak in sheltered areas at TL while the entire snowpack has become weak BTL where it remains shallow. Be cautious in very steep terrain and in confined features where a small sluff could build mass.
40+cm of storm snow over the past 48hrs is settling into a slab with warm temperatures (-1 to -5). The Jan 4 surface hoar is down ~45cm and found to be up to 15mm in size. If triggered, small avalanches could step down to the Dec 15th PWL!
The Dec 15th PWL is widespread around tree line and below tree line, buried ~80cm. New snow and warm temps have slabbed up the upper snow pack! This interface became reactive yesterday, burying one skier in a terrain trap.
="s_3FE45715">The upper layers of the snowpack have become weak in sheltered areas at TL while the entire snowpack has become weak BTL where it remains shallow. Be cautious in very steep terrain and in confined features where a small sluff could build mass.
Loose dry surface snow avalanches will continue to be a problem in steep rocky areas and gullies.
45cm of recent storm snow is settling into a slab assisted by warm temperatures (-1 to -5). The Jan 4 surface hoar is down ~45cm and found to be up to 15mm in size. If triggered, small avalanches could step down to the Dec 15th PWL with big results.
The Dec 15th PWL is widespread around tree line and below tree line, buried ~80cm. New snow and warm temps have slabbed up the upper snow pack! This interface became reactive Monday, burying one skier in a terrain trap.
="s_3FE45715">New snow covers a facetted/weak upper snowpack in sheltered areas. Be cautious in very steep terrain and in confined features where a small sluff could build mass.
Recent snow is being moved around by the SW winds and forming fresh wind slabs in lee alpine areas. These slabs can fail on the the Dec 15 layer which is producing easy to moderate shears.
Loose dry surface snow avalanches will continue to be a problem in steep rocky areas and gullies.
45cm of recent storm snow has settled into a slab. The Jan 4 surface hoar is down ~45cm and found to be up to 15mm in size. If triggered, avalanches could step down to the Dec 15th PWL with potential for large avalanches.
The Dec 15th PWL is widespread around tree line and below tree line, buried ~100cm. Previous warm temps have slabbed up the upper snow pack. This interface is reactive with skier remote slides Wednesday and a skier buried in a terrain trap on Monday.
There is a dangerous weak layer down 30-60 cm but it needs a stiffer slab overlying it for the avalanche to occur. We are &quot;almost&quot; at that tipping point so be very careful with this layer and travel conservatively even if you observe no avalanches.
Soft windslabs formed during the last storm exist near ridge crests and under cliff bands. Watch for the changing feel of the snow under your feet and be wary of areas with denser surface snow.
="s_3FE45715">New snow covers a facetted/weak upper snowpack in sheltered areas. Be cautious in very steep terrain and in confined features where a small sluff could build mass. Even light winds were triggering these events along alpine ridges Thursday.
A reactive storm slab sits atop the Jan 4 surface hoar interface. The slab is poorly bonded where the surface hoar is well preserved. If triggered, avalanches could step down to the Dec 15th persistent weak layer causing very large slides.
This interface has become reactive with the recent new snow loading. It is most prevalent around treeline or on sheltered slopes the alpine. These avalanches are especially dangerous in terrain trap features where debris can pile up quickly.
There is a dangerous weak layer down 30-60 cm but it needs a stiffer slab overlying it for the avalanche to occur. We are &quot;almost&quot; at that tipping point so be very careful with this layer and travel conservatively even if you observe no avalanches.
="s_3FE45715">New snow covers a facetted/weak upper snowpack in sheltered areas. Be cautious in very steep terrain and in confined features where a small sluff could build mass. Even light winds were triggering these events along alpine ridges Thursday.
A reactive storm slab continues to build &amp; warming temps in the next couple days will make it more touchy. The slab is poorly bonded in areas where the Jan 4 surface hoar is well preserved. If triggered avalanches could step down to the Dec 15th PWL.
This interface has become reactive with the recent new loading and is most prevalent around treeline or sheltered areas the alpine. These avalanches are especially dangerous in terrain traps where debris can pile up.
="s_3FE45715">New snow covers a facetted and weak upper snowpack in sheltered areas. Be cautious in very steep terrain and in confined features where a small sluff could build mass. Consider the potential for these small sluffs to trigger slabs TL and above.
There is a widespread weak layer of surface hoar from Dec 15th down 40-60 cm with a stiff enough slab over it to start producing avalanches. Be very careful and travel conservatively even if you observe no avalanches.
A reactive slab continues to settle, warming temps in the next couple days will make it more touchy. The slab is poorly bonded in areas where the Jan 4 surface hoar is well preserved. If triggered avalanches could step down to the Dec 15th PWL.
This interface has become reactive with the recent new loading and is most prevalent around treeline or sheltered areas the alpine. These avalanches are especially dangerous in terrain traps where debris can pile up.
There is a widespread weak layer of surface hoar from Dec 15th down 40-60 cm with a stiff enough slab over it to start producing avalanches. Be very careful and travel conservatively even if you observe no avalanches.
Sunday's cycle of these will likely result in crust limiting the further potential of this problem however temperatures seem a bit uncertain and if the sun is out again, it is worth taking note.
The Jan 4th and Dec 15 surface hoar layers are widespread around tree line and below, buried ~60cm and ~90cm respectively. The forecasted warm temps will further slab up the upper snow pack and avalanche activity is expected throughout the day. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Natural point release avalanches continued on Monday - loose dry on NE aspects and loose wet on solar aspects. This natural activity is expected to continue on Tuesday.
The Jan 4 and Dec 15 surface hoar layers are down ~60cm and ~90cm respectively. These layers are widespread at treeline. A receding weak temp inversion and mainly cloudy conditions should reduce reactivity compared to recent days.
Natural point release avalanches remain a concern particularly in terrain traps or confined gullies. Surface snow remains loosely consolidated and ripe for entraining snow if initiated. New snow next few days will add to this concern.
This layer is a concern mainly at treeline around Field, Emerald Lake and Little Yoho - this is a very specific band. Natural avalanches are unlikely but human triggered are likely - watch overhead hazard BTL; avalanches can run into the forest.
The Jan 4 and Dec 15 surface hoar layers are down ~65cm and ~95cm respectively. These layers are widespread at treeline. 10cm storm snow in the last 24hrs will add load to the slab over these weak layers.
New snow landing on loose facets has the potential to entrain and create big sluffs.
This layer is a concern mainly at treeline around Field, Emerald Lake and Little Yoho - this is a very specific band. Natural avalanches are unlikely but human triggered are likely - watch overhead hazard BTL; avalanches can run into the forest.
Yesterday's field info found remote triggering the surface slab in some locations and no slab in others. Warming temps, more new snow and mod S-SW winds will increase the density  of the slab and sensitivity of the layer to human triggering.
The Jan 4 and Dec 15 surface hoar layers are down ~70cm and ~100cm respectively. These layers are widespread at treeline. 20cm storm snow in the last 24hrs will add load to the slab over these weak layers.
5-10cm of storm snow has been pushed into fresh windslabs. The concern is for areas where these slabs overlay a couple layers of surface hoar in the top 30cm of the snowpack. Field teams found touchy new slabs in the Hilda Creek drainage.
The Jan 16 surface hoar is widespread and buried 30cm. Incremental loading combined with wind action has led to slab development over this weak interface. The January 4th surface hoar is down 60cm and could be triggered by a storm slab avalanche.
The Dec 15th layer is down 100cm. After a month under the snow, this surface hoar remains widespread and well-preserved. Daily snowfalls add up. This incremental loading can increase the sensitivity of deep layers that may be forgotten, but not gone.
The January 4th surface hoar is down 60cm and the Dec 15th layer is down 100cm. After a month under the snow, this surface hoar remains widespread and well-preserved. These layers should not be overlooked and could be more sensitive in thin areas.
The January 4th surface hoar is down 60cm and the Dec 15th layer is down 100cm. After a month under the snow, this surface hoar remains widespread and well-preserved. These layers should not be overlooked and could be more sensitive in thin areas.
No large avalanches have been observed on the Dec. 15 facet layer but it continues to be a layer of worry for the forecasters.
This layer is a concern mainly at treeline around Field, Emerald Lake and Little Yoho - this is a very specific band. Natural avalanches are unlikely but human triggered are likely - watch overhead hazard BTL; avalanches can run into the forest.
The dec 15 layer is a concern mainly at treeline around Field, Emerald Lake and Little Yoho - this is a very specific band. Watch for overhead hazard BTL; avalanches can run into the forest.
The Dec 15 layer is a concern mainly at treeline around Field, Emerald Lake and Little Yoho - this is a very specific band, although avalanches initiated could run into areas below treeline.
The Dec 15 layer is a concern mainly at treeline around Field, Emerald Lake and Little Yoho - this is a very specific band, although avalanches initiated could run into areas below treeline.
Strong south winds combined with recent new snow has formed pockets of wind slab. This buries the Jan 16 surface hoar which is widespread and found down ~50cm. Slabs triggered over this weak layer could propagate far and trigger deeper layers.
The January 4th surface hoar is down 70cm and the Dec 15th layer is down 100cm. After a month under the snow, this surface hoar remains widespread and well-preserved. These layers should not be overlooked and could be sensitive in thin areas.
There are 3 weak layers in the upper snowpack: Jan. 16, Jan 6 and Dec. 15. They are a mix of sun crust, facets and surface hoar depending on aspect and elevation. Avalanches initiated in any of these layers will likely step down to the Dec. 15 layer
We are now in a lower likelihood/very high consequence scenario with the January 4th and the Dec 15th surface hoar layers. These layers should not be overlooked and could be sensitive to thin areas.
There are 3 weak layers in the upper snowpack: Jan. 16, Jan 6 and Dec. 15. They are a mix of sun crust, facets and surface hoar depending on aspect and elevation. Avalanches initiated in any of these layers will likely step down to the Dec. 15 layer
Storm slabs sit on a layer of surface hoar and/or a thin crust. They will be most sensitive in areas exposed to wind and unsupported convexities, where there's tension in the snowpack. Storm slabs triggered could step down to deeper weak layers.
We are now in a lower likelihood/very high consequence scenario with the January 4th and the Dec 15th surface hoar layers. These layers should not be overlooked and could be sensitive to human triggering in thin areas.
There are 3 weak layers in the upper snowpack: Jan 16, Jan 6, and Dec. 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Whumphing is occurring on these layers daily and step down avalanches are possible
Persistent weak layers present a lower likelihood/very high consequence scenario with the January 4th and the Dec 15th surface hoar layers. These layers could be sensitive to human triggering in thin areas, or overloads from storm slab avalanches.
There are 3 weak layers in the upper snowpack: Jan 16, Jan 6, and Dec. 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Recent loading has overloaded these layers and we are seeing avalanche running far.
Persistent weak layers present a lower likelihood / high consequence scenario with the Jan 16th, 4th and Dec 15th surface hoar layers. These layers could be sensitive to human triggering in thin areas, or overloads from storm slab avalanches.
There are 3 weak layers in the upper snowpack: Jan 16, Jan 6, and Dec. 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Recent loading has overloaded these layers and we are seeing avalanche running far.
Persistent weak layers present a lower likelihood / high consequence scenario with the Jan 16th, 4th and Dec 15th surface hoar layers. These layers could be sensitive to human triggering in thin areas, or overloads from wind slab avalanches.
There are three weak layers in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Avalanches are occurring on these layers and human triggering is likely.
Persistent weak layers present a lower likelihood / high consequence scenario with the Jan 16th, 4th and Dec 15th surface hoar layers. These layers could be sensitive to human triggering in thin areas, or overloads from wind slab avalanches.
Incoming new snow and wind will build fresh storm slabs. If triggered these may step down and trigger the persistent weaknesses in the upper snowpack.
There are three weak layers in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Avalanches are occurring on these layers and human triggering is likely.
There are three weak layers in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Avalanches are occurring on these layers and human triggering is likely.
Heavy snowfall and warming temperatures will create a reactive storm slab. If triggered, the slab could step down to deeper weak layers. With steady snowfall accumulation in the last week expect to see avalanches gaining mass and running far.
Persistent weak layers present a lower likelihood / high consequence scenario with the Jan 16th, 4th &amp;Dec 15th surface hoar layers buried deep. These layers could be overloaded and reach their tipping point with today's warming and heavy snowfall
There are three weak layers in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Avalanches are occurring on these layers and human triggering is likely.
The current storm is loading the slab over top of 3 layers: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on aspect and elevation. Avalanches are occurring on these layers and human triggering is likely.
Incoming new snow and wind will build fresh storm slabs.
Watch for sluffing in steep terrain.
Heavy snowfall created a reactive storm slab. Wind loading continues to overload this weakness. If triggered, the slab could step down to deeper weak layers. Avalanches are running full path.
Persistent weak layers present a lower likelihood / high consequence scenario with the Jan 16th, 4th &amp;Dec 15th surface hoar layers buried deep. These layers have woke up again resulting in large avalanches in the last 24hrs.
There are three weak layers in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Avalanches are occurring on these layers and human triggering is almost certain.
Natural Avalanches to size 3 were noted today along with numerous size 2 avalanches failing down 50-100cm on persistent weak layers.
widespread from rapid loading of new snow with warm temps and quick settlement.
There are three weak layers in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Avalanches are occurring on these layers and human triggering is almost certain.
Recent heavy snowfall has created a reactive storm slab. Wind transport has added to the load on lee slopes at and above treeline. If triggered, the slab could step down to deeper persistent weak layers.
Persistent weak layers present a lower likelihood / high consequence scenario with the Jan 16th, 4th &amp;Dec 15th surface hoar layers buried deep. Triggered storm slabs may overload these layers resulting in large avalanches.
There are three weak layers in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Avalanches are occurring on these layers and human triggering is almost certain.
There are three weak layers in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Avalanches are occurring on these layers and human triggering is almost certain.
This is the primary concern at all elevations. The new snow has settled into a touchy soft slab in many locations. This presents as a windslab in exposed areas, such as cross loaded and lee features at upper elevations.
Point releases have the ability to entrain new snow and accumulate significant mass.
Recent heavy snowfall has created a storm slab in some locations. Wind transport added to the load on lee slopes at and above treeline. If triggered, the slab could step down to deeper persistent weak layers.
Natural avalanche activity on the persistent weak layers has dropped off. The Jan 16th, 4th &amp;Dec 15th surface hoar layers  are buried deep. Large triggers such as cornice fall or storm slabs may overload these layers.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Destructive avalanches have occurred on these and will continue over the few days.
This is the primary concern at all elevations. The new snow has settled into a touchy soft slab in many locations. This presents as a windslab in exposed areas, such as cross loaded and lee features at upper elevations.
Point releases have the ability to entrain new snow and accumulate significant mass.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on your aspect and elevation. Destructive avalanches have occurred on these and will continue over the few days.
Ongoing heavy snowfall has created a storm slab. Wind transport added to the load on lee slopes at and above treeline. If triggered, the slab could step down to deeper persistent weak layers.
Natural avalanche activity will increase today with forecasted new snow and ongoing winds. The Jan 16th, 4th and Dec 15th surface hoar layers are buried deep, but avalanches in the storm snow can certainly step down and trigger these weak interfaces.
Point releases have the ability to entrain new snow and accumulate significant mass.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. Destructive avalanches have occurred on these and will continue over the few days.
If the forecasted new snow amounts of 15-20 cm with strong SW winds show up, we will likely see storm slabs failing over the next 24 hrs with potential to step down to deeper layers. Stick to non-avalanche terrain until things have a chance to settle
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. Destructive avalanches have occurred on these and will continue over the few days.
If the forecasted new snow amounts of 15-20 cm with strong SW winds show up, we will likely see storm slabs failing over the next 24 hrs with potential to step down to deeper layers. Stick to non-avalanche terrain until things have a chance to settle
Ongoing heavy snowfall has created a storm slab. Strong to extreme South winds will have redistributed new snow into a touchy windslab in the Alpine &amp; at Treeline.&nbsp; If triggered, the slab could step down to deeper persistent weak layers.
Natural avalanche activity will increase today with forecasted new snow and ongoing winds. The Jan 16th, 4th and Dec 15th surface hoar layers are buried deep, but avalanches in the storm snow can step down and trigger these weak interfaces.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. Destructive avalanches have occurred on these and will continue over the few days.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. Destructive avalanches have occurred on these and will continue over the few days.
Consistent snowfall has created a storm slab. Previous strong South winds have redistributed the new snow into a windslab in the Alpine and at Treeline. If triggered, the slab could step down to deeper persistent weak layers.
Natural avalanche activity on the persistent weak layers has tapered off recently. The Jan 16th, 4th and Dec 15th surface hoar layers are buried deep, but avalanches in the storm snow can step down and trigger these weak interfaces.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. Destructive avalanches have occurred on these and will continue over the few days.
Expecting to build throughout the week with the forecasted winds.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. Natural activity is tapering, but it is still primed for human triggering.
The new snow that fell Saturday and Sunday has triggered a few slabs as it has sluffed off of rock faces or steep terrain. Consider the potential for this if you enter steep or confined terrain.
Natural avalanche activity on the persistent weak layers has tapered off recently. The Jan 16th, 4th and Dec 15th surface hoar layers are buried deep, but avalanches in the storm snow can step down and trigger these weak interfaces.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. 50-100 cm of snow over the last week has overloaded these layers.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. Natural activity is tapering, but it is still primed for human triggering.
The new snow that fell Saturday and Sunday has triggered a few slabs as it has sluffed off of rock faces or steep terrain. Consider the potential for this if you enter steep or confined terrain such as ice climbs.
Natural avalanche activity on the persistent weak layers has tapered off recently. The Jan 16th, 4th and Dec 15th surface hoar layers are buried deep, but avalanches in the storm snow can step down and trigger these weak interfaces.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. 50-100 cm of snow over the last week has overloaded these layers.
Three weak layers exist in the upper snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. Natural activity is tapering, but it is still primed for human triggering.
The Jan 16th, 4th and Dec 15th surface hoar layers have been quiet recently but may reawaken given a large trigger such as a storm slab avalanche or cornice fall.
Rapid snowfall on top of the 20cm+ already received this week will prime the surface for sluffing. Both natural and skier triggered sluffing can be expected today.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. The recent and forecasted snow will continue to overload these layers.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. The recent and forecasted snow will continue to overload these layers.
Look for storm slab formation with warmer temps and forecasted snow amounts. Winds will be variable in direction through the storm period which may result in widespread slab distribution. These new slabs may also be sitting on previous wind slabs.
The weak facet layer in the snowpack could wake-up with the new snow forecasted on Thursday.
Watch for slab formation with warming temperatures into the weekend. The new snow may also be sitting on old wind slabs
The Jan 16th, 4th and Dec 15th surface hoar layers have been quiet recently but may reawaken given a large trigger such as a storm slab avalanche or cornice fall.
Rapid snowfall, with 40cm of low density overnight will be easy to get moving in steep terrain. Both natural and skier triggered sluffing can be expected today.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are very sensitive to triggering both naturally and by human triggering.
There are storm slabs up to 1m thick on many aspects and elevations from the big storm on Thursday. These will be highly sensitive to triggering and once initiated, can step down to the deeper persistent layers causing very large avalanches.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are very sensitive to triggering both naturally and by human triggering.
There are storm slabs up to 1m thick on many aspects and elevations from the big storm on Thursday. These will be highly sensitive to triggering and once initiated, can step down to the deeper persistent layers causing very large avalanches.
Up to 45cm of HST fell through the forecast area, over-loading the already weak persistent slab and running far and fast.
The last storm brought over 60cm of new snow in 48hrs. Storm slabs remain touchy and are still resulting in large natural avalanches, as recently as 0700 this morning. Expect the &quot;first kiss of the sun&quot; to trigger more storm slab avalanches.
Several deeply buried persistent weak layers are primed for natural and skier triggering with the new storm load. These slides have the potential to reach the full extent of their run-out zones. Mature timber may not be a default safe spot today.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are very sensitive to triggering both naturally and by human triggering.
There are storm slabs up to 1m thick on many aspects and elevations from the big storm on Thursday. These will be highly sensitive to triggering and once initiated, can step down to the deeper persistent layers causing very large avalanches.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are very sensitive to triggering both naturally and by human triggering.
There are storm slabs up to 1m thick on many aspects and elevations from the big storm on Thursday. These will be highly sensitive to triggering and once initiated, can step down to the deeper persistent layers causing very large avalanches.
Up to 45cm of HST fell through the forecast area, over-loading the already weak persistent slab and running far and fast.
Very large avalanches of been running to this layer at the bottom of the snowpack clearing mature timber in the valley bottom
Forecasted winds will move around the new snow creating wind slabs that have the potential to step down to deeper layers in the snowpack.
The last storm brought over 60cm of snow in 48hrs. In the alpine, mod winds have built windslab. If triggered these slabs will propagate very wide. Cornices have also grown in size &amp; become more fragile in the last week, give them a wide berth!
Several deeply buried persistent weak layers have become reactive with the new snow load. If these layers are triggered the resulting avalanches will have the potential to reach the full extent of their run-out zones, possibly even further.
Persistent slabs remain a problem. The main concern is for areas exposed to large triggers such as cornices and large South facing alpine terrain exposed to afternoon sun.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.
The last storm brought 60cm+ of snow. In the alpine, strong winds have formed windslab. If triggered these slabs have potential to propagate. Cornices have grown in size &amp; become more fragile in the last week, avoid exposing yourself to this hazard.
Deeply buried persistent weak layers were reactive in the recent avalanche cycle. Larger loads such as storm slab or cornice fall may trigger these layers. Resulting avalanches will have the potential to reach the full extent of their run-out zones.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.
Persistent slabs remain a problem. The main concern is for areas exposed to large triggers such as cornices and large South facing alpine terrain exposed to the sun.
Back into lower probability but high consequence of a large avalanche if triggered with the PWL. Large loads such as wind slab or cornice fall may trigger these layers. Resulting avalanches will be large and may reach the end of their run-out zones.
Persistent slabs remain a problem. The main concern is for areas exposed to large triggers such as cornices and large South facing alpine terrain exposed to the sun.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.
These slabs will be most susceptible to triggering in shallow areas. This type of instability will linger for a while yet. The significant storms we've seen recently have overloaded these layers, priming slopes to fail only awaiting a trigger.
Up to 15cm of new snow is being blown in to fresh windslabs.
Persistent slabs remain a problem. The main concern is for areas exposed to large triggers such as cornices and large South facing alpine terrain exposed to the sun.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers could easily be triggered.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers could easily be triggered.
30cm of storm snow has been fallen over night with moderate southwest winds building pockets of wind slab in the alpine and exposed treeline locations. The storm slab will be most reactive along ridge lines, convexities and steep unsupported terrain.
These slabs will be most susceptible to triggering in shallow areas. This type of instability will linger for a while yet. The significant storms we've seen recently have overloaded these layers, priming slopes to fail only awaiting a trigger.
Up to 15cm of new snow with winds and warmer temperatures is creating fresh windslabs.
Persistent slabs remain a problem. The main concern is for areas exposed to large triggers such as cornices or smaller avalanches / sloughing from above.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers could easily be triggered.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers could easily be triggered.
40cm in 48hrs, previous moderate winds have redistributed it into pockets of wind slab in the alpine and exposed treeline locations. Expect the storm slab to be most reactive along ridge lines, convexities and in steep unsupported terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
These slabs will be most susceptible to triggering in shallow areas. This type of instability will linger for a while yet. The significant storms seen recently have overloaded these layers, priming slopes to fail only awaiting a trigger.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers could easily be triggered.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers could easily be triggered.
Variable and strong upper elevation winds are continuing to create fresh windslabs.
Persistent slabs remain a problem. Areas exposed to large triggers such as cornices or smaller avalanches / sloughing from above are most likely to trigger this midpack weakness.
Watch for this layer to wake up if we get rapid loading from new snow on Saturday night. Expect avalanches to run full path into the valley bottom.
Natural and skier triggered avalanches are still resulting from this reactive storm slab problem.  Loading from moderate to strong southerly winds has increased the likelihood storm slabs being triggered and propagating, especially in exposed areas.
These slabs will be most susceptible to triggering in shallow areas. This type of instability will linger for a while yet. The significant storms seen recently have overloaded these layers, priming slopes to fail only awaiting a trigger.
Persistent slabs remain a problem. Areas exposed to large triggers such as cornices or smaller avalanches / sloughing from above are most likely to trigger this midpack weakness.
A 100-125cm dense slab of snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation.
A 100-125cm dense slab of snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation.
Natural and skier triggered avalanches are still resulting from this reactive storm slab problem. Loading from moderate to strong southerly winds has increased the likelihood storm slabs being triggered and propagating, especially in exposed areas.
These slabs will be most susceptible to triggering in shallow areas. This type of instability will linger for a while yet. The significant storms seen recently have overloaded these layers, priming slopes to fail only awaiting a trigger.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation.
Whumpfing and cracking are signs of this layer's reactivity. Expect long propagation with a wind-stiffened snow surface.
These slabs will be most susceptible to triggering in shallow areas. This type of instability will linger for a while yet. The significant storms seen recently have overloaded these layers, priming slopes to fail only awaiting a trigger.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation.
A 100-125cm dense slab of January storm snow overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation.
A stiff slab 50 to 90cm thick, sits over sun crusts on south and west aspects, Surface Hoar preserved at, and just above treeline and weak faceted crystals lurking in shallow snowpack features. This is a dangerous problem that is difficult to avoid.
20 hrs of strong N-NE winds have formed reverse loaded windslab at and above treeline. Natural slab avalanches to size 2 have been randomly occurring many triggered by cornice fall. Avoid exposing yourself to overhead hazard.
Persistent weak layers continue to linger and may be susceptible to human triggering in shallow areas. Larger triggers such as cornice fall may also wake these deeper weak layers resulting in larger avalanches.
A stiff slab 50 to 90cm thick, sits over sun crusts on south and west aspects, Surface Hoar preserved at, and just above treeline and weak faceted crystals lurking in shallow snowpack features. This is a dangerous problem that is difficult to avoid.
A 100-125cm strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and they continue to produce moderate, sudden planar test results.
A 100-125cm strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and they continue to produce moderate, sudden planar test results.
A stiff slab 50 to 90cm thick, sits over sun crusts on south and west aspects, Surface Hoar preserved at, and just above treeline and weak faceted crystals lurking in shallow snowpack features. This is a dangerous problem that is difficult to avoid.
A  strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and they continue to produce moderate, sudden planar test results.
In the deeper snowpack areas west of the divide the previously reported persistent weak layers within the mid-pack (Dec 15, Jan 6, and Jan 16 layers) are becoming stronger and only producing hard to no results with pit tests.
A strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and we are slowly gaining confidence with these layers.
In the deeper snowpack areas west of the divide the previously reported persistent weak layers within the mid-pack (Dec 15, Jan 6, and Jan 16 layers) are becoming stronger and only producing hard to no results with pit tests.
A stiff slab 50 to 90cm thick, sits over sun crusts on south and west aspects, Surface Hoar preserved at, and just above treeline and weak faceted crystals lurking in shallow snowpack features. This is a dangerous problem that is difficult to avoid.
A stiff slab 50 to 80cm thick, sits over: Sun Crusts (south and west aspects), Surface Hoar (at, and just above treeline) and weak Faceted Crystals (very developed in shallow snowpack features) This is a dangerous problem that is difficult to avoid.
A strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and we are slowly gaining confidence with these layers.
In the deeper snowpack areas west of the divide the previously reported persistent weak layers within the mid-pack (Dec 15, Jan 6, and Jan 16 layers) are becoming stronger and only producing hard to no results with pit tests.
A strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and we are slowly gaining confidence with these layers.
A stiff slab 50 to 80cm thick, sits over: Sun Crusts (south and west aspects), Surface Hoar (at, and just above treeline) and weak Faceted Crystals (very developed in shallow snowpack features) This is a dangerous problem that is difficult to avoid.
In the deeper snowpack areas west of the divide the previously reported persistent weak layers within the mid-pack (Dec 15, Jan 6, and Jan 16 layers) are becoming stronger and only producing hard to no results with pit tests.
A stiff slab 50 to 80cm thick, sits over sun Crusts (south and west aspects), Surface Hoar (at, and just above treeline) and weak Faceted Crystals (very developed in shallow snowpack features) This is a dangerous problem that is difficult to avoid.
A strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and we are slowly gaining confidence with these layers.
In the deeper snowpack areas west of the divide the previously reported persistent weak layers within the mid-pack (Dec 15, Jan 6, and Jan 16 layers) are becoming stronger and only producing hard to no results with pit tests.
Storm snow is landing on a facetted old snow surface. In steeper terrain expect surface sluffing, which can be an issue in terrain traps such as gully features.
A stiff slab 50 to 80cm thick, sits over sun Crusts (south and west aspects), Surface Hoar (at, and just above treeline) and weak Faceted Crystals (very developed in shallow snowpack features).
A strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and we are slowly gaining confidence with these layers.
A strong upper snowpack overlies three weak layers in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on location, and we are slowly gaining confidence with these layers.
Moderate S'ly winds and 25cm of storm snow all landing on a facetted old snow surface. Where wind touched watch for a reactive storm slab at and above treeline. Recently buried windslab is also a concern more so on steeper solar locations.
In steep terrain expect surface power sluffing, which can be an issue in terrain traps such as gully features. Stay situationally aware as to people above and below you.
A strong upper snowpack overlies three weak layers in the mid snowpack. All are a mix of sun crust, surface hoar and facets depending on location. We have not had any recent avalanche activity on these layers but keep them in mind in large terrain.
A strong upper snowpack overlies three weak layers in the mid snowpack. All are a mix of sun crust, surface hoar and facets depending on location. We have not had any recent avalanche activity on these layers but keep them in mind in large terrain.
No recent avalanches have been observed on this facet layer but this is the sleeping dragon.
No recent avalanches have been observed on this facet layer but this is the sleeping dragon.
A cold, facetting, and structurally weak slab up to 80cm thick overlies faceted crystals (well developed in shallow areas). Low elevations will present as a loose dry avalanche problem.
A cold, facetting, and structurally weak slab up to 80cm thick overlies faceted crystals (well developed in shallow areas). Low elevations will present as a loose dry avalanche problem.
Late afternoon problem in steep, solar rocky terrain. Found to be entraining the surrounding, facetted snowpack and will build up volume quickly.
New snow and southerly winds have created reactive storm slabs. Slabs will be well-formed on lee features when wind has contributed to loading. These slabs are touchy and sensitive to human triggered loads as well as natural inputs like wind and sun.
A cold, facetting, and structurally weak slab up to 80cm thick overlies faceted crystals (well developed in shallow areas). Low elevations will present as a loose dry avalanche problem.
Late afternoon problem in steep, solar rocky terrain. Found to be entraining the surrounding, facetted snowpack and will build up volume quickly.
Expect loose wet avalanches to initiate from steep rocky terrain. Watch for increasing hazard associated with prolonged sun affect.
Climbers avoid terrain exposed to the sun, we expect solar related avalanche activity over the next few days with prolonged sun affect and warmer day time temperatures.&nbsp; Loose wet avalanches can be expected to initiate from overhead rocks and cliffs.
Today the new snow will get a blast of strong spring solar radiation. This should trigger a natural cycle of loose wet avalanches on solar aspects, most likely initiated from rock outcrops or dropping snow pillows.
Late afternoon problem in steep, solar rocky terrain. Also found to be entraining the surrounding, facetted snowpack and will build up volume and speed quickly.
A cold, facetting, and structurally weak snowpack overlies faceted crystals (well developed in shallow areas).
Expect loose wet avalanches to initiate from steep rocky terrain. Watch for increasing hazard associated with prolonged sun affect. Finish very early, or better yet, avoid steep confined features all together.
Expect loose wet avalanches to initiate from steep rocky terrain. Watch for increasing hazard associated with prolonged sun affect. Finish very early, or better yet, avoid steep confined features all together.
The first sustained warming event of the season will put the deeply buried December Facet layer to the test. The 'where' and 'when' of this problem is difficult to evaluate, but likelihood will rise with the sustained warm temps forecast.
More of a problem Tuesday on, especially if overnight temperatures remain high.
Expect loose wet avalanches to initiate from steep rocky terrain. Pay close attention to the effects of the sun on the avalanche terrain above you and avoid overhead exposure. With prolonged warm temps expect cornices to begin failing.
Expect loose wet avalanches to initiate from steep rocky terrain. Watch for increasing hazard associated with prolonged sun affect. Finish very early, or better yet, avoid steep confined features all together.
Expect loose wet avalanches to initiate from steep rocky terrain. Watch for increasing hazard associated with prolonged sun affect. Finish very early, or better yet, avoid steep confined features all together.
Late afternoon problem in steep, solar rocky terrain. Also found to be entraining the surrounding, facetted snowpack and will build up volume and speed quickly.
As daily temperature swings push further and further in to&nbsp; the upper snowpack, slab avalanches may occur at several interfaces within the facetted and structurally weak mid and lower snowpack.
Expect loose wet avalanches to initiate from steep solar terrain. Pay close attention to the effects of the sun on the avalanche terrain above you and avoid overhead exposure. With prolonged warm temps expect cornices to begin failing.
solar aspects and elevations below the freezing level
Avoid steep gully areas and any sun exposed faces or overhead terrain - it will avalanche when the sun hits it. Stick to shaded terrain and look way overhead to make sure nothing big is hanging above you - things are falling off these days.
Avoid steep gully areas and any sun exposed faces or overhead terrain - it will avalanche when the sun hits it. Stick to shaded terrain and look way overhead to make sure nothing big is hanging above you - things are falling off these days.
Expect loose wet avalanches to initiate from steep solar terrain. Pay close attention to the effects of the sun on the avalanche terrain above you and avoid overhead exposure. With prolonged warm temps expect cornices to begin failing.
solar aspects and elevations below the freezing level
The sun is strong right now and with this clear weather, it is destabilizing the snow on solar aspects in the afternoon. Generally these avalanches are running as loose wet and not stepping down to deeper layers, but the possibility remains.
The sun is strong right now and with this clear weather, it is destabilizing the snow on solar aspects in the afternoon. Generally these avalanches are running as loose wet and not stepping down to deeper layers, but the possibility remains.
Expect loose wet avalanches to initiate from steep solar terrain. Pay close attention to the effects of the sun on the avalanche terrain above you and avoid overhead exposure.
Lower elevation temperatures have stayed above zero for the past 24hrs with a freezing level up to 1600m today. There is the chance of rain (10-15mm) starting early this afternoon which will weaken the snowpack below tree line.
The sun is strong right now and with this clear weather, it is destabilizing the snow on solar aspects in the afternoon. Generally these avalanches are running as loose wet and not stepping down to deeper layers, but the possibility remains.
Hot weather means cornice season, and this is the time when large mature cornices begin to fall off and the mountain sheds its snowpack. On ridges stay well away from cornices (they can reach back and get you), and avoid traveling under them.
With the freezing level forecast to be as high as 1900m on Friday, this could be a significant problem at lower elevations (particularly on ice climbs).
Lower elevation temperatures have stayed around zero for the past 24hrs and the freezing level should be up to 1700m later today. Forecast sunny periods could quickly weaken surface layers resulting in surface sloughing this afternoon.
Expect the new snow to shed from steep rocky terrain.
Areas with deeper storm snow amounts are sluffing easily. This is a good time to avoid steep gullied terrain where even a small avalanche will gain mass quickly. Wind, warm temps or sunny breaks will also increase the likelihood of this problem.
Today the snowpack will get the full effect of the sun.  Expect the recent 5-10 cm to become reactive on solar aspects especially around rocks and trees in steep terrain.  As the near surface crust breaks down in the PM we could see bigger avalanches
Expect any accumulated snow to shed from steep rocky terrain with solar or rain input.
Hazard will increase with clearing skies after new snow.
Cloud cover today should reduce the chance of loose wet slides on solar aspects. However if the sun does come out expect the recent 5-10 cm of snow to become reactive around rocks and trees on steep solar terrain.
Watch for this to become reactive if the sun comes out.
Cloud cover today should reduce the chance of loose wet slides on solar aspects. However if the sun does come out expect the recent 5-10 cm of new snow to become reactive around rocks and trees on steep solar terrain.
Watch for snowpack to become reactive if the sun comes out.
Rising freezing levels should turn the new snow moist at lower elevations. This new layer will bond well to gentle terrain but slide off easily where it overlies a crust in steep terrain. Loose wet avalanches may also trigger glide avalanches today.
Watch for snowpack to become reactive if the sun comes out.
Rain will destabilize the snowpack turning it isothermal, particularly where the snow cover is thin.
Today's high freezing level of 2000m and the possibility of rain at lower elevations will weaken the snowpack and increase the possibility of loose wet avalanches.
Concern still exists for last weeks storm snow (20-30 cm) where it overlies a crust on solar aspects. Some recent avalanches have been observed on this interface.
Five cm of new snow fell overnight with Southerly winds gusting to 81 km/hr. Another 5cm is forecast today with sustained winds building windslab in lee features.  Pay close attention solar aspects where near surface crusts act as a good bed surface
20cm new snow with Southerly winds gusting to 80 km/hr has formed a storm slab. Another 10cm is forecast today with sustained winds building windslab in lee features. Pay attention on solar aspects where near surface crusts act as a good bed surface
As the new snow increases the load over the March 15 crust on solar aspects we may start to see avalanche activity on this layer. If the facets below the crust also fail, larger propagations will be possible.
60cm of storm snow buries a crust up to 2000m on all aspects and into the alpine on solar aspects. 30cm of new snow is settling quickly could be reactive to human presence. Moderate to strong winds have formed wind slabs on lee features.
This problem includes new widespread storm slabs which will form if the expected snow and wind occurs, and some older wind slabs which will now be buried in specific features at upper elevations.
This problem includes new widespread storm slabs which will form if the expected snow and wind occurs, and some older wind slabs which will now be buried in specific features at upper elevations.
Watchout for storm slabs forming with new snow.
Because the snow surface is a smooth crust the new snow will run fast and far
With the help of strong south winds, the storm snow is forming into a cohesive slab. The slab sits on a variety of surfaces including a widespread crust below tree line, a crust on solar aspects, and isolated pockets of surface hoar on polar aspects.
With the help of strong south winds, the storm snow is forming into a cohesive slab. The slab sits on a variety of surfaces including a widespread crust below tree line, a crust on solar aspects, and isolated pockets of surface hoar on polar aspects.
Storm slabs may be susceptible to human triggering. Steep S aspects where the slab may sit on a sun crust and wind loaded features on N and E aspects are the main concern.
Variable strong winds have blown the recent storm snow around and loaded all aspects in the alpine. While these slabs are fresh they will be susceptible to human triggering, especially in steep unsupported terrain or with strong solar heating.
Moist surface snow ran naturally and was easily triggered by skiers on steeper terrain yesterday. With little overnight recovery below 1900m expect this problem to continue today.
Expect natural avalanche activity during periods of rain.
Expect the moist surface snow to destabilize rapidly as the temperature rises and snow/rain fall amounts increase.
70-90cm of settled snow sits on the mid March crust/facet combo and fails suddenly in the mod-hard range in stability tests on solar aspects. This layer might become more active with the incoming snow/rain and rising temperatures.
The snowpack is rapidly heating up and in shallow spots requires very little in the way of rain, sun or ambient heat to complete the process. Snow pillows falling onto snow of this character will trigger avalanches. Solar radiation is a trigger.
There is potential for loose wet avalanches in the afternoon when the day heats up.
The sun is expected to make an appearance today which will heat up solar aspects quickly and weaken the surface snow, resulting in potential avalanches.
The snowpack in shallow spots requires very little in the way of ambient heat to weaken it to point of triggering. Solar radiation speeds up this process dramatically.
Rising FL and rain could destabilize surface layers resulting in loose moist avalanches. A Moderate re-freeze overnight should have formed a crust well into treeline on all aspects and into the Alpine on Solar aspects after yesterday's warm up.
Expect loose wet avalanches to start running from steep slopes when temps warm up. Watch out for terrain traps where these small avalanches could have severe consequences. 
Over 30cm in last 48hrs initially accompanied by strong to extreme winds has created widespread storm slabs on all aspects at Treeline and in the Alpine. Expect the strong winds to have scoured S aspects &amp; created firm windslabs on N facing terrain.
The forecast calls for cloudy with sunny periods. If the sun does decide to make an appearance today solar radiation may initiate loose wet slides on steeper Southerly aspects. Rain possible later today will also destabilize surface layers.
This layer is widespread and most pronounced at treeline elevation. It will be most reactive in areas where wind loading has occurred and encouraged slab development.
This layer can be found at tree line and in the alpine but spotty in its distribution. It will be most reactive in areas where wind loading has occurred on lee aspects and on steep solar aspects where the surface hoar sits on a crust.
This layer can be found at all elevations, but is spotty in its distribution. It will be most reactive in wind loaded areas and on steep solar aspects where the surface hoar sits on a crust.
This layer can be found at all elevations, but is spotty in its distribution. It will be most reactive in wind loaded areas and on steep solar aspects where the surface hoar sits on a crust.
This layer can be found at all elevations, but is spotty in its distribution. It will be most reactive in wind loaded areas and on steep solar aspects where the surface hoar sits on a crust.
As the snowfall intensifies expect to see loose avalanche run from cliffy terrain into terrain features such as gullies.
40cm of new snow and strong winds are great ingredients for storm slabs. The storm snow is sitting on a mix of facets, surface hoar and crusts. The storm slab will be easy for skiers and riders to trigger on steep slopes today and tomorrow.
As the snowfall intensifies expect to see loose avalanche run from steep terrain.
80cm of storm snow and strong winds are great ingredients for storm slabs. The storm snow is sitting on a mix of facets, surface hoar and crusts. Natural Avalanche activity will peak today, storm slabs will be easy for skiers and riders to trigger.
Fresh slabs will continue to build over the next day as the storm fronts pass over our region.
As the snowfall intensifies expect to see loose avalanche run from steep terrain.
Up to 40 cm of recent snow along with strong winds will have created storm slabs and wind slabs at all elevation. These slabs are reactive to skier triggering and are running long distances. Ice climbers pay attention to overhead hazard.
Loose dry avalanches have been observed running long distances.
Up to 40 cm of recent snow along with strong winds will have created storm slabs and wind slabs at all elevation. These slabs are reactive to skier triggering and are running long distances. Ice climbers pay attention to overhead hazard.
Loose dry avalanches have been observed running long distances.
110cm of storm snow contains several instabilities and is poorly bonded to the Dec 9 interface. The storm has subsided, but slab formation continues with rising temperatures and strong winds. These slabs will be easy for skiers and riders to trigger.
Up to 40 cm of recent snow along with strong winds will have created storm slabs and wind slabs at all elevation. These slabs are reactive to skier triggering and are running long distances. Ice climbers pay attention to overhead hazard.
Loose dry avalanches have been observed running long distances.
Up to 40 cm of recent snow along with strong winds will have created storm slabs and wind slabs at all elevation. These slabs are reactive to skier triggering and are running long distances. Ice climbers pay attention to overhead hazard.
Loose dry avalanches have been observed running long distances.
The December 9 weak layer is down +100cm. This layer consists of surface hoar, facets and sun crust, depending on the aspect. Natural and human triggered avalanches are still occurring on this layer.
The new snow will continue to settle over time. Determining the strength of bond at the Dec. 11 interface will be key to safe travel in open features at treeline and below.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to this deeper layer.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to this deeper layer.
The bottom of the snowpack is a combination of crusts and facets that is reactive to large triggers.
The December 9 weak layer is down 60-100cm. This layer consists of surface hoar, facets, and sun crust, depending on the aspect. Natural and human triggered avalanches are still occurring on this layer.
Determining the strength of bond at the Dec11 interface is key to safe travel in open features at treeline and below.
Up to 50cm of recent snow along with strong winds will have created storm slabs and wind slabs at all elevations. These slabs are still reactive to skier triggering. Ice climbers pay attention to overhead hazard.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to this deeper layer.
Up to 50cm of recent snow along with strong winds will have created storm slabs and wind slabs at all elevations. These slabs are still reactive to skier triggering. Ice climbers pay attention to overhead hazard.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to this deeper layer.
Up to 50cm of recent snow with additional storm snow expected will have created storm slabs and wind slabs at all elevations. These slabs will be reactive to skier triggering. Ice climbers pay attention to overhead hazard.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to this deeper layer.
Determining the strength of bond at the Dec11th interface is key to safe travel in avalanche terrain.
New snow will increase the load on deep weak layers. We may see the same kind of cycle that our norther neighbours saw last week.
Up to 50cm of recent snow with additional storm snow expected will have created storm slabs and wind slabs at all elevations. These slabs will be reactive to skier triggering. Ice climbers pay attention to overhead hazard.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to this deeper layer.
25cm in the past 36hrs accompanied by moderate winds and near zero temps promoting storm slab formation, particularly on lee and cross loaded features.
Another 25-40 cm of new snow is forecast by end of day Thursday. This is falling on 50-70 cm deep storm slabs that have been reactive over the last week. These slabs are sitting on the Dec. 10th layer of facets and surface hoar.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to this deeper layer, especially in thinner snowpack areas.
Another 25-40 cm of new snow is forecast by end of day Thursday. This is falling on 50-70 cm deep storm slabs that have been reactive over the last week. These slabs are sitting on the Dec. 10th layer of facets and surface hoar.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to this deeper layer, especially in thinner snowpack areas.
Determining the strength of bond at the Dec11th interface is key to safe travel in avalanche terrain.
New snow has increase the load on deep weak layers. This loading is likely to continue on Thursday Night with continued snowfall, increasing the potential for human triggering.
This layer now sits under close to a meter of snow, any terrain that has not had previous activity on this layer should be given a wide berth.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to these deeper layers of facets and depth hoar. Avoid avalanche terrain.
The mid and lower portions of the snowpack are weak and are now overloaded with critical levels of snow. We expect avalanches to step down to these deeper layers of facets and depth hoar. Avoid avalanche terrain.
This layer now sits under close to a meter of snow, any terrain that has not had previous activity on this layer should be given a wide berth.
Recent snow has now overloaded the weak middle and lower portions of the snowpack. Avalanches are frequently stepping down to these deeper layers of facets and depth hoar. Avoid traveling in&nbsp; avalanche terrain.
Recent snow has now overloaded the weak middle and lower portions of the snowpack. Avalanches are frequently stepping down to these deeper layers of facets and depth hoar. Avoid traveling in avalanche terrain.
caution shallow trigger locations
50cm+ of snow in the past 72hrs, accompanied by strong SW winds and warm temp's, has formed a storm slab at all elevations. Slabs will be more pronounced in immediate lee features below ridge crests and on cross-loaded slopes. Human triggering likely
Recent snow has now overloaded the Oct. 26 deep persistent layer of facets and depth hoar, and there is enough mass now to cause large avalanches.
The Dec. 10 persistent layer of facets and surface hoar is now buried 40 - 80cm. Avalanches have either been independently running on this layer, or stepping down to the basal weakness.
Recent snow has now overloaded the Oct. 26 deep persistent layer of facets and depth hoar, and there is enough mass now to cause large avalanches.
The Dec. 10 persistent layer of facets and surface hoar is now buried 40 - 80cm. Avalanches have either been independently running on this layer, or stepping down to the basal weakness.
This layer now sits under a meter of snow, any terrain that has not had previous activity on this layer should be given a wide berth.
50cm+ of storm snow, accompanied by strong SW winds and warm temp's, has formed a storm slab at all elevations; especially in immediate lee features below ridge crests and on cross-loaded slopes. Solar input may trigger slabs on steep, S'ly aspects.
This layer now sits under a meter of snow, any terrain that has not had previous activity on this layer should be given a wide berth.
Recent snow has now overloaded the Oct. 26 deep persistent layer of facets and depth hoar, and there is enough mass now to cause large avalanches.
The Dec. 10 persistent layer of facets and surface hoar is now buried 40 - 80cm. Avalanches have either been independently running on this layer, or stepping down to the basal weakness.
Recent snow has now overloaded the Oct. 26 deep persistent layer of facets and depth hoar, and there is enough mass now to cause large avalanches.
The Dec. 10 persistent layer of facets and surface hoar is now buried 40 - 80cm. Avalanches have either been independently running on this layer, or stepping down to the basal weakness.
Recent snow has now overloaded the Oct. 26 deep persistent layer of facets and depth hoar, and there is enough mass now to cause large avalanches.
The Dec. 10 persistent layer of facets and surface hoar is now buried 40 - 80cm. Avalanches have either been independently running on this layer, or stepping down to the basal weakness.
Recent snow has now overloaded the Oct. 26 deep persistent layer of facets and depth hoar, and there is enough mass now to cause large avalanches.
The Dec. 10 persistent layer of facets and surface hoar is now buried 40 - 80cm. Avalanches have either been independently running on this layer, or stepping down to the basal weakness.
This layer now sits under a meter of snow, any terrain that has not had previous activity on this layer should be given a wide berth.
Though we have not been seeing many recent results on this layer, the potential to trigger it remains in thin snowpack areas
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Continue to avoid large, open avalanche prone slopes at treeline and in the alpine as these cannot yet be trusted.
The Dec 10 surface hoar and facets can be found 40-80 cm down in the deeper (western) parts of the forecast region. The layer is stabilizing, but continues to be a concern at at in treeline gladed areas.
This layer now sits under a meter of snow, any terrain that has not had previous activity on this layer should be given a wide berth.
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Continue to avoid large, open avalanche prone slopes at treeline and in the alpine as these cannot yet be trusted.
The Dec 10 surface hoar and facets can be found 40-80 cm down in the deeper (western) parts of the forecast region. The layer is stabilizing, but continues to be a concern at at in treeline gladed areas.
The Dec 9 and Nov 21 persistent weak layers are down ~100-120cm and consists of surface hoar, facets, or a sun crust. Sudden test results are being seen on this layer. Human triggered avalanches on these layers remains possible.
The new snow from last week is settling and the interface with the old snow surface, buried up to a meter deep, is strengthening. Large triggers such as cornices have produced several releases in the past 48hrs.
The base of the snowpack is weak and facetted.  Likely trigger locations are around rocks, where cold air can penetrate to the base of the snowpack, and shallow snowpack  locations.
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Continue to avoid large, open avalanche prone slopes at treeline and in the alpine as these cannot yet be trusted.
The Dec 10 surface hoar and facets can be found 40-80 cm down in the deeper (western) parts of the forecast region. The layer is stabilizing, but continues to be a concern .
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Continue to avoid large, open avalanche prone slopes at treeline and in the alpine as these cannot yet be trusted.
The Dec 10 surface hoar and facets can be found 40-80 cm down in the deeper (western) parts of the forecast region. The layer is stabilizing, but continues to be a concern .
The Dec 9 and Nov 21 persistent weak layers are down ~100-120cm and consists of surface hoar, facets, or a sun crust depending on aspect and elevation. Human triggered avalanches on these layers are unlikely but still possible.
The new snow from last week is settling and the interface with the old snow surface, buried up to a meter deep, is strengthening. Large triggers such as cornices have produced several releases since the last storm.
The base of the snowpack is weak and facetted. Likely trigger locations are around rocks, where cold air can penetrate to the base of the snowpack, and shallow snowpack locations.
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Natural activity on this layer has decreased but human triggered avalanches on this layer are still possible.
This problem is the Dec 10 surface hoar/facet layer which is down 40-80 cm along the Divide. Although this layer is stabilizing, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Natural activity on this layer has decreased but human triggered avalanches on this layer are still possible.
This problem is the Dec 10 surface hoar/facet layer which is down 40-80 cm along the Divide. Although this layer is stabilizing, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
This problem is a slab overlying the Dec 10 surface hoar/facet layer which is down 40-80 cm. Although this layer is gaining strength, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Natural activity on this layer has decreased but human triggered avalanches on this layer are still possible.
The new snow from last week is settling and the interface with the old snow surface, buried up to a meter deep, is strengthening. Large triggers such as cornices have produced several releases since the last storm.
The base of the snowpack is weak and facetted. Likely trigger locations are around rocks, where cold air can penetrate to the base of the snowpack, and shallow snowpack locations.
Though we have not been seeing many recent results on this layer, the potential to trigger it remains in thin snowpack areas.
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Natural activity on this layer has decreased but human triggered avalanches on this layer are still possible.
The new snow will fall on to settle snow from last week. Below this the interface with the old snow surface, buried up to a meter deep, is strengthening however, large triggers such as cornices have produced several releases recently.
The base of the snowpack is weak and facetted. Likely trigger locations are around rocks, where cold air can penetrate to the base of the snowpack, and shallow snowpack locations.
This problem is a slab overlying the Dec 10 surface hoar/facet layer which is down 40-80 cm. Although this layer is gaining strength, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
Heavy snowfall, warming temperatures and moderate SW winds are working together to form fresh storm slabs. The bond to the cold, old snow surface will need time to strengthen. Expect the storm slab to be sensitive to human and natural triggering.
This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Natural activity on this layer has decreased but human triggered avalanches on this layer are still possible.
This problem is a slab overlying the Dec 10 surface hoar/facet layer which is down 40-80 cm. Although this layer is gaining strength, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
The new snow has come with strong winds at all elevations. Avoid overhead avalanche terrain during periods of heavy loading
The new snow will fall on to settle snow from last week. Below this the interface with the old snow surface, buried up to a meter deep, is strengthening however, large triggers such as cornices have produced several releases recently.
The base of the snowpack is weak and facetted. Likely trigger locations are around rocks, where cold air can penetrate to the base of the snowpack, and shallow snowpack locations.
40cm+ storm snow with mod SW winds and warm temps has formed a touchy storm slab. The bond at the old snow surface is weak. The bond to the old snow surface will need time to strengthen. Expect the storm slab to be sensitive to human triggering.
A stiff slab overlying a&nbsp; weak lower snowpack comprised of facets and depth hoar can be found in most areas of the region (generally central and eastern) where&nbsp; a shallow snowpack exists. Give this weak snowpack some time to adjust to the storm load.
This problem is a slab overlying the Dec 10 surface hoar/facet layer which is down 50-90 cm. Although this layer is gaining strength, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
The recent snow came with strong winds at all elevations.
Even a small loose slide could have serious consequences for Ice Climbers
The new snow has added to the load on the Dec 11th weak interface.&nbsp; Buried more than a meter deep in some locations, this layer is strengthening but has been reactive to large triggers such as cornices recently.
40cm storm snow with mod SW winds and warm temps has formed a storm slab. The bond at the old snow surface is strengthening but it will still be sensitive to human triggering. The cold temp's may make it stubborn to trigger, but travel conservatively
A stiff slab overlying a weak lower snowpack comprised of facets and depth hoar can be found in most areas of the region (generally central and eastern) where a shallow snowpack exists. Give this weak snowpack some time to adjust to the storm load.
The recent snow came with strong winds at all elevations yet surprisingly little natural activity noted.
Even a small loose slide could have serious consequences for Ice Climbers. Expect the potential for loose avalanches in steep terrain with recent 35cm of snow from Saturday.&nbsp;
The new snow has added to the load on the Dec 11th weak interface. Buried more than a meter deep in some locations, this layer is strengthening but has been reactive to large triggers such as cornices recently.
This problem is a slab overlying the Dec 10 surface hoar/facet layer which is down 60-100 cm. Although this layer is gaining strength, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
Caution shallow trigger locations
40cm storm snow, mod SW winds, and warm temps have formed a storm slab. The bond at the old snow surface is strengthening but it will still be sensitive to human triggering, especially in shallow or wind-affected areas.
A stiff slab overlying a weak lower snowpack comprised of facets and depth hoar can be found in most areas of the region (generally central and eastern) where a shallow snowpack exists. Give this weak snowpack some time to adjust to the storm load.
This problem is a slab overlying the Dec 10 surface hoar/facet layer which is down 60-100 cm. Although this layer is gaining strength, there is still uncertainty with this interface. Evaluate this layer carefully prior to committing to bigger slopes.
The recent snow came with strong winds at all elevations, wind effect is visible in all open terrain.
Be particularly cautious in steep areas with shallow snowpack, were the new snow is sitting on unconsolidated facets and depth hoar.
The new snow has added to the load on the Dec 11th weak interface. Buried more than a meter deep in some locations, this layer is strengthening but has been reactive to large triggers such as cornices recently.
A new storm slab will develop over the day with the incoming storm and bury old wind/storm slab. 40cm of settled storm snow has been redistributed by moderate southerly winds and formed pockets of wind slab at ridge line and cross loaded features.
Forecasts are calling for ~25 cm's by the morning and up to 50 cm's by Thursday evening. This will certainly form a touchy slab. Any avalanches initiated here are likely to step down to the deeper Dec. 10th layer.
The 60-100 cm slab overlying the Dec. 10th layer of facets and surface hoar will become overloaded with the forecasted 30-50 cm of snow on Thursday. Any avalanche that initiates is highly likely to step down to this layer.
25-50 cm of new snow on Thursday will sluff easily and is very likely to initiate a larger avalanche on the Persistent slab layer
Forecasts are calling for ~25 cm's by the morning and up to 50 cm's by Thursday evening. This will certainly form a touchy slab. Any avalanches initiated here are likely to step down to the deeper Dec. 10th layer.
The 60-100 cm slab overlying the Dec. 10th layer of facets and surface hoar will become overloaded with the forecasted 30-50 cm of snow on Thursday. Any avalanche that initiates is highly likely to step down to this layer.
25-50 cm of new snow on Thursday will sluff easily and is very likely to initiate a larger avalanche on the Persistent slab layer
Fresh snow and strong to extreme SW winds at all elevations, expect wind effect in all open terrain.
The new snow has added to the load on the Dec 11th weak interface. Buried more than a meter deep in some locations, this layer is strengthening but has been reactive in shallow snowpack areas recently.
The base of the snowpack is weak and facetted. In shallow snowpack areas the new snow will likely overload this weakness.
Rapid loading has created storm slabs at all elevations and aspects. Avalanches will run to and may cross valley bottom. Natural and human triggered avalanches will be very likely to almost certain as the cycle will peak today.
Loose dry avalanches are very likely today with the current rapid loading. Even small terrain features could sluff and be dangerous in the wrong place. Tree wells and deep snow immersion are also real hazards today!
Another 30 cm is forecasted for Emerald adding to the 35 cm already received. This will certainly form a touchy slab. Any avalanches initiated here are likely to step down to the deeper Dec. 10th layer.
The Dec. 10th layer of facets and surface hoar down 80-160 cm continues to be rapidly loaded by an ongoing intense storm. Any avalanche that initiates almost certainly to step down to this layer and run well into the run outs below treeline.
Loose snow avalanches are occurring and is very likely to initiate a larger avalanche on the Persistent slab layer described above.
Another 30 cm is forecasted for Emerald adding to the 35 cm already received. This will certainly form a touchy slab. Any avalanches initiated here are likely to step down to the deeper Dec. 10th layer.
The Dec. 10th layer of facets and surface hoar down 80-160 cm continues to be rapidly loaded by an ongoing intense storm. Any avalanche that initiates almost certainly to step down to this layer and run well into the run outs below treeline.
Loose snow avalanches are occurring and are very likely to initiate large avalanches on the persistent weak layer described above.
Up to 45cm of fresh snow, warm temperatures and moderate to strong SW winds are creating widespread touchy windslabs and storm slabs.
The new snow has added to the load on the Dec 11th weak interface. Buried more than a meter deep in some locations, this layer is strengthening but has been reactive in shallow snowpack areas recently.
The base of the snowpack is weak and facetted. In shallow snowpack areas the new snow will likely overload this weakness.
Rapid loading and strong winds have created storm slabs at all elevations and aspects. Avalanches can run well into the valley bottom. Natural and human triggered avalanches will be very likely to almost certain as the winds pick up this morning.
Up to 70 cm of storm snow has formed a touchy storm slab at all elevations. Numerous slopes &amp; cutbanks below treeline have avalanched wall to wall or remain poised for human triggering.
The Dec. 10th layer of facets &amp; surface hoar down 100-150 cm has been overloaded by recent storm snow. The snow pack needs time to adjust, be very conservative with route choices this weekend and avoid overhead exposure.
With winds tapering tomorrow, there should be fewer loose dry avalanches, but they will still be a concern given the amount of snow we have received. Any increase in wind could trigger loose dry avalanches which in turn can trigger deeper avalanches.
Up to 70 cm of storm snow has formed a touchy storm slab at all elevations.  Numerous slopes &amp; cutbanks below treeline have avalanched wall to wall or remain poised for human triggering. 
The Dec. 10th layer of facets &amp; surface hoar down 100-200 cm has been overloaded by recent storm snow. The snow pack needs time to adjust, be very conservative with route choices this weekend and avoid overhead exposure.
With winds tapering tomorrow, there should be fewer loose dry avalanches, but they will still be a concern given the amount of snow we have received. Any increase in wind could trigger loose dry avalanches which in turn can trigger deeper avalanches.
Up to 45cm of fresh snow, warm temperatures and moderate to strong SW winds are creating widespread touchy windslabs and storm slabs.
The new snow has added to the load on the Dec 11th weak interface. Buried more than a meter deep in some locations, this layer is strengthening but has been reactive in shallow snowpack areas recently.
The base of the snowpack is weak and facetted. In shallow snowpack areas the new snow will likely overload this weakness.
Rapid loading and strong winds have created storm slabs. Slabs will be most developed near ridgelines and on lee features where wind loading has occurred. These slabs could certainly be triggered by human loads.
There is the very real potential of a slab initiating on the weak basal layers (Oct. 30 layer), or a storm slab &quot;stepping down&quot; to cause a large avalanche. This problem will be around for some time.
Lots of  recent snow load will require some time to stabilize. These storm slabs exist in many areas and should be treated with caution in avalanche terrain, but should only be a problem in the short term.&nbsp;
The Dec. 10th layer of facets &amp; surface hoar down is now down 100- 150cm The snow pack needs time to adjust, be very conservative with route choices this weekend and avoid overhead exposure.
Up to 70 cm of storm snow has formed storm slabs at all elevations. These will likely be a problem only in the short term, but should be treated with caution. Many of these have also been failing at lower elevations in Little Yoho.
Up to 45cm of fresh snow, warm temperatures and moderate to strong SW winds are creating widespread touchy windslabs and storm slabs.
Storm slab will become more dangerous and reactive as the whole snowpack settles into a stiffer slab.
The new snow has added to the load on the Dec 11th weak interface. Buried more than a meter deep in some locations, this layer is strengthening but has been reactive in shallow snowpack areas recently.
Rapid loading and strong winds have created storm slabs. Slabs will be most developed near ridgelines and on lee features where wind loading has occurred. These slabs may be triggered by human loads.
Up to 45cm of new snow from Jan 2-4th, warm temperatures and moderate to strong SW winds created windslabs.
The new snow has added to the load on the Dec 11th interface. It is buried more than a meter deep in some locations. This layer is strengthening but was active during the storm in shallow snowpack areas.
The base of the snowpack is weak and facetted. In shallow snowpack areas the new snow in combination with a skier has the potential to overload this weakness.
There is the very real potential of a slab initiating on the weak basal layers (Oct. 30 layer), or a storm slab &quot;stepping down&quot; to cause a large avalanche. This problem will be around for some time.
Lots of recent snow load will require some time to stabilize. These storm slabs exist in many areas and should be treated with caution in avalanche terrain, but should only be a problem in the short term. Expect it to last for a couple more days.
The Dec. 10th layer of facets &amp; surface hoar down is now down 100- 150cm The snow pack needs time to adjust, be very conservative with route choices for a while yet.
Up to 70 cm of storm snow has formed storm slabs at all elevations. These will likely be a problem only in the short term, but should be treated with caution. Many of these have also been failing at lower elevations in Little Yoho.
More avalanche control work today proved that this layer is still touchy. Most avalanches scrubbed down to the October 26th facet crust or the ground. This layer needs time to adjust to the load and this problem will be around for some time.
These storm slabs exist in many areas and should be treated with caution in avalanche terrain, but should only be a problem in the short term. Expect it to last for a couple more days. If you trigger this layer, watch for the step down avalanche
There has not been much recent activity on the facets deep in the snowpack, but there is still the possibility to trigger them in shallow areas.
More avalanche control work today proved that this layer is still touchy. Most avalanches scrubbed down to the October 26th facet crust or the ground. This layer needs time to adjust to the load and this problem will be around for some time.
These storm slabs exist in many areas and should be treated with caution in avalanche terrain, but should only be a problem in the short term. Expect it to last for a couple more days. If you trigger this layer, watch for the step down avalanche
The base of the snowpack is weak and facetted in shallow areas and will likely be for some time. The new snow in combination with a skier has the potential to overload this weakness.
The Dec. 11th layer of facets, surface hoar is buried more than a meter deep. This layer is strengthening but was active during the recent storm.
Avalanche control work on Monday proved that this layer is still touchy. Most avalanches scrubbed down to the October 26th facet crust or the ground. This layer needs time to adjust to the load and this problem will be around for some time.
Avalanche control work on Monday proved that this layer is still touchy. Most avalanches scrubbed down to the October 26th facet crust or the ground. This layer needs time to adjust to the load and this problem will be around for some time.
The base of the snowpack is weak and facetted in shallow areas and will likely be for some time. The new snow in combination with a skier has the potential to overload this weakness.
Continued moderate winds formed winds slabs in the alpine and exposed ares at tree line. Winds were out of the NE, reverse loading ridge tops where you may not expect to find regular wind slabs.
The Oct. 26 layer is still very active. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
The base of the snowpack is weak and facetted in shallow areas and will likely be for some time. The new snow in combination with a skier has the potential to overload this weakness.
The Dec.10 layer of facets and some surface hoar are down 150+cm at treeline. There have been few observations from this deeper snowpack region as to the sensitivity of this layer, but recent avalanche control has seen deep propagations.
Continued snowfall, combined with mild temps, will have created soft storm slabs in many areas. In the region, storm slabs have been reactive and easily triggered by skiers. Be especially cautious in alpine areas, where it has buried windslabs.
The Oct. 26 layer is still very active. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
The base of the snowpack is weak and facetted in shallow areas and will likely be for some time. The Jan 2-4th 85cm of new snow in combination with a skier has the potential to overload this weakness.
The Dec.10 layer of facets and some surface hoar are down 150+cm at treeline. There have been few observations from this deeper snowpack region as to the sensitivity of this layer, but recent avalanche control has seen deep propagations.
Recent snowfall combined with mild temps, has created soft storm slabs in many areas. Storm slabs have been reactive and easily triggered by skiers. Be especially cautious in alpine areas, where it has buried windslabs.
The new snow seems to be bonding well to the old snow interface. In deeper snowpack areas, this deep weakness may be bridged by a sturdy new mid-pack. Build trust slowly in the new snowpack before committing to any large rideable slope.
The  facets and depth hoar 40 cm above the ground inspire little confidence. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
The Dec.10 layer of facets and some surface hoar are down 130+cm at treeline in the fatter snowpack areas more typical in this region. The sensitivity of this layer seems more concerning at lower elevations but few observations have been made so far
Recent snowfall combined with winds and mild temps has create storm slabs. Warm temperatures will increase slab properties and destabilize the surface snow, thereby increasing the likelihood of triggering this widespread problem.
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load.  Build trust slowly in the new snowpack before committing to any large rideable slope.
The facets and depth hoar 40 cm above the ground inspire little confidence. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
The Dec.10 layer of facets and some surface hoar are down 130+cm at treeline in the fatter snowpack areas more typical in this region. The sensitivity of this layer seems more concerning at lower elevations but few observations have been made so far
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the new snowpack before committing to any large rideable slope.
The facets and depth hoar 40 cm above the ground inspire little confidence. Some large natural avalanches are still occurring and human triggering is likely. This layer needs time to adjust to the load and this problem will be around for some time.
The Dec.10 layer of facets and some surface hoar are down 130+cm at treeline in the fatter snowpack areas more typical in this region. The sensitivity of this layer seems more concerning at lower elevations but few observations have been made so far
Warm temps and strong sunshine on steep solar aspects will cause natural avalanches at the warmest part of the day.
Surface slabs exist at all elevations and aspects, but may be more likely to trigger on solar aspects with the warm temp's and intense sunshine.
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the new snowpack before committing to any large rideable slope.
The weak facets and depth hoar  just  above the ground have an significant slab sitting above them . It is difficult to travel with any confidence given this structure. Some large natural avalanches are still occurring and human triggering is likely.
In deeper snowpack locations the Dec 10 layer is a thin, separated, layer of facets about 120cm deep which is becoming less of a problem. In thinner areas however, a thick layer of facets sits just below the Dec 10 layer which is about 80cm deep.
The previous warm, sunny days likely have cooked solar aspects, but we may still see loose, moist avalanches running during the warmest part of the day. Steep S/SW aspects are the most suspect for triggering.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Some large natural avalanches are still occurring and human triggering is likely
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the snowpack before committing to any large rideable slope.
In deeper snowpack locations the Dec 10 layer is a thin, separated, layer of facets about 120cm deep which is becoming less of a problem. In thinner areas however, Dec 10 is only about 80cm deep and has a thick, weak, facet layer siting just below.
Recent snowfall combined with winds and mild temps has create storm slabs. Warm temperatures will increase slab properties and destabilize the surface snow, thereby increasing the likelihood of triggering this widespread problem.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
In deeper snowpack locations the Dec 10 layer is a thin, separated, layer of facets about 120cm deep which is becoming less of a problem. In thinner areas however, Dec 10 is only about 80cm deep and has a thick, weak, facet layer siting just below.
Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the snowpack before committing to any large rideable slope.
Regardless of snowfall amounts, Wind Slabs will continue to build over a crust / surface hoar&nbsp; layer during the forecast period.
This layer likely requires a large trigger. New wind slabs may step down causing large avalanches.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
Use caution in shallow snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
The weak facets and depth hoar just above the ground have an significant 100-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
The weak facets and depth hoar just above the ground have an significant 100-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
The new snow will increase the reactivity of this deeply buried problem.&nbsp; An avalanche of this nature would be large with severe consequences.
The incoming new snow and strong SW winds will produce windslabs at all elevations. Beneath the slab is a widespread surface hoar layer on most aspect from treeline to the valley bottom. Also near treeline on southerly slopes is a buried sun crust.
Incoming storm snow will load on top of a widespread Jan 17th surface hoar layer. The bond to the old snow surface is suspect at all elevations. Warming temperatures may make the surface slab more sensitive to human triggering.
Surface sloughing of storm snow can be expected in steeper terrain. This may pose a hazard in terrain  trap features such as gulleys.
The weak facets and depth hoar just above the ground have an significant 50-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
The weak facets and depth hoar just above the ground have an significant 100-140cm thick slab sitting above them. This slab has been hardened by wind effect TL and above. Activity is tapering, but human triggering is still possible and consequential.
Use caution in shallow snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
Use caution in shallow snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
Weak facets and depth hoar are found just above the ground have an significant 50-140cm thick slab sitting above them. While natural  activity has dropped off,  human triggering is still possible. Be very cautious with thin snowpack areas . 
Weak facets and depth hoar found just above the ground  have an significant 50-140cm thick slab sitting above them. While natural activity has dropped off, human triggering is still possible. Be very cautious with thin snowpack areas .
Over the weekend we received 20cm of new snow accompanied by extreme winds forming wind slabs in specific locations throughout the park. This overlies the Jan 17th SH layer in sheltered areas and old unreactive wind slabs in exposed terrain.
Weak facets and depth hoar are present at the base of the snowpack in thin snowpack areas, and have a significant slab sitting above them. While natural avalanche activity has decreased, human triggering of this layer is still possible in these areas
Weak facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. While natural avalanche activity has decreased, human triggering of this layer is still possible, especially in thin snowpack areas.
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
Over the weekend we received 20cm of new snow accompanied by extreme winds forming wind slabs in isolated locations throughout the park. This soft slab overlies the Jan 17th SH in sheltered areas and old unreactive wind slabs in exposed terrain.
Weak facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. While natural avalanche activity has decreased, human triggering of this layer is still possible, especially in thin snowpack areas.
Weak facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. While natural avalanche activity has decreased, human triggering of this layer is still possible, especially in thin snowpack areas.
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
The Jan 17th layer is down 20-40cm and consists of surface hoar in sheltered areas and sun crust on steep solar aspects. This layer seems more problematic between 1600-2100m. Where soft slab exists, human triggered avalanches are possible.
Pay attention to sluffing off cliffs and steep solar terrain, signs of a warming snowpack
Use caution in shallow uneven snowpack areas where deep weakness would be more reactive to a human trigger. An avalanche of this nature would be large with severe consequences.
The Jan 17th layer is down 20-40cm and consists of surface hoar in sheltered areas and sun crust on steep solar aspects. This layer is most problematic between 1600-2100m. Warm temperatures will cause this slab to consolidate and increase the hazard.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
The Jan 17th layer is down 20-40cm and consists of surface hoar in sheltered areas and sun crust on steep solar aspects. This layer is most problematic between 1600-2100m. Warm temps have created a cohesive soft slab easily triggered by a person.
Variable accumulation of fresh snow Sunday with gusty NW winds has created small, reactive storm slabs, particularly where loaded by NW winds, over a variety of surfaces from suncrust, surface hoar and wind pressed areas.
The Jan 17th layer is down 30-50cm and consists of surface hoar in sheltered areas and sun crust on steep solar aspects. This layer is most problematic between 1600-1800m, and sensitive to human triggering.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
The Jan 17th Surface Hoar layer is now down 30-50cm. This layer exists on all aspects, and is most problematic between 1400-1900m on steep solar aspects where it overlies a crust.
A natural avalanche Monday on this layer shows that only minor changes may wake this generally dormant dragon. Triggering is most likely in thin areas, with variable snowpack depth. Use terrain choice and safe practices to minimize consequences.
A natural avalanche Monday on this layer shows that only minor changes may wake this generally dormant dragon. Triggering is most likely in thin areas, with variable snowpack depth. Use terrain choice and safe practices to minimize consequences.
Avoid avalanche terrain until the storm subsides and the snowpack can settle.
New snow may overload the deep persistent weakness. Avoid avalanche terrain.
Avoid avalanche terrain until the storm subsides and the snowpack can settle.
New snow may overload the deep persistent weakness. Avoid avalanche terrain.
The Jan 17th Surface Hoar layer is now down 30-50cm. This layer exists on all aspects, and is most problematic between 1400-1900m on steep solar aspects where it overlies a crust.
The Jan 17th Surface Hoar layer is now down 30-50cm. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
35cm of storm snow has created a reactive storm slab problem. Another 35cm of snow is expected to fall by Saturday afternoon with strong winds. Rapid loading will turn these slabs into a widespread touchy problem where natural avalanches are certain.
The Jan 17th Surface Hoar layer is now down 60cm. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.
We expect 20-50 cm of storm snow by Sunday with moderate-strong SW-SE winds. Storm slabs will form in many areas. Natural avalanches are expected in steep terrain and human triggering will be likely in deeper storm snow areas.
We expect 20-40 cm of storm snow by Sunday with moderate-strong SW-SE winds. Storm slabs will form in many areas. Natural avalanches are expected in steep terrain and human triggering will be likely in deeper storm snow areas.
75cm of storm snow has created a reactive storm slab problem. Strong S winds are now battering the pass reloading areas that have previously avalanched. Rapid loading has turned these slabs into a touchy problem where natural avalanches are certain.
The Jan 17th Surface Hoar layer is now down 100cm+. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
25-40cm of new snow has fallen under warmer temperatures at all elevations which will be reactive in the short term. The Jan. 17th layer is buried up to 65cm deep and consists of surface hoar, facets or crust and can be found up to 2300m.
Expect storm slabs to be reactive in the short term on many aspects. Especially watch areas where the buried Jan. 17th surface hoar and/or crust layer is present . This has been found below 2200m and where found, was reactive before this last storm.
Avoid avalanche terrain until the storm subsides and the snowpack can settle.
New snow may overload the deep persistent weakness. Avoid avalanche terrain.
70cm of storm snow has created a reactive storm slab problem. Strong S winds have now shifted to moderate NE wind reverse loading exposed areas. Expect the storm slab to be more reactive in wind effected areas.
The Jan 17th Surface Hoar layer is now down 90cm+/-. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
The Jan 17 layer is a combination of Surface Hoar and/or a melt freeze crust. Since the recent storm, it has become reactive to skier traffic and can generally be found down 50cm. Dig down, look and test this layer at tree line and below.
The Jan 17 layer is a combination of Surface Hoar and/or a melt freeze crust. Since the recent storm, it has become reactive to skier traffic and can generally be found down 65cm. Dig down, look and test this layer at tree line and below.
Up to 50cm of recent snow followed by strong winds have redistributed the snow into thick slabs well into the terrain.
New snow with strong winds may overload the deep persistent weakness.
New low density snow sluffing out of very steep rocky terrain. 
70cm of storm snow, plus strong to extreme Southerly winds created wind and storm slabs over the weekend. On Sunday Strong NE winds relocated our storm snow again into wind slabs on specific terrain features at all aspects and elevations.
The Jan 17th Surface Hoar layer is now down 90cm+/-. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.
The Jan 17 layer is a combination of Surface Hoar and/or a melt freeze crust. Since the recent storm, it has become reactive to skier traffic and can generally be found down 50cm. Dig down, look and test this layer at tree line and below.
The Jan 17 layer is a combination of Surface Hoar and/or a melt freeze crust. Since the recent storm, it has become reactive to skier traffic and can generally be found down 65cm. Dig down, look and test this layer at tree line and below.
Up to 50cm of recent snow followed by strong winds has built thick slabs well into the terrain.
New snow with strong winds recently overloaded the deep persistent weakness.
Expect sluffing out of steep rocky terrain when the sun is on it.
The Jan 17th Surface Hoar layer is now down 60-80cm. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
Up to 50cm of recent snow followed by strong winds has built thick slabs well into the terrain.
New snow with strong winds recently overloaded the deep persistent weakness in shallow snowpack areas.
Expect sluffing out of steep rocky terrain if the sun is on it.
The Jan 17 and Jan 31 Surface Hoar layers are down ~70 and ~60cm respectively. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
Up to 50cm of recent snow followed by strong winds has built thick slabs.&nbsp;
New snow with strong winds recently overloaded the deep persistent weakness in shallow snowpack areas.
Expect sluffing out of steep rocky terrain if the sun is on it.
The Jan 31 and Jan 17 surface hoar layers are down ~50 and ~70cm respectively. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
Expect sluffing out of steep rocky terrain if the sun is on it.
Up to 50cm of recent snow followed by strong winds has built thick slabs.
New snow with strong winds recently overloaded the deep persistent weakness in shallow snowpack areas.
A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.
The Jan 31 and Jan 17 surface hoar layers are down ~50 and ~70cm respectively. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
Expect sluffing out of steep rocky terrain
Just a reminder, this is still there and can still be triggered from shallow snowpack areas. See avalanche activity summary.
The Jan 31 and Jan 17 surface hoar layers are down ~50 and ~70cm respectively. This layer exists on all aspects, and is most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
Expect sluffing out of steep rocky terrain. Cold temperatures continue to loosen the surface snow to the point where it looses structure and avalanches as a point release. They can pick up enough mass to be a concern.
Just a reminder, this is still present and can still be triggered from shallow snowpack areas. See avalanche activity summary.
The Jan 31 and Jan 17 surface hoar layers are down ~50 and ~70cm respectively. These layers exists on all aspects, and are most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
Expect sluffing out of steep rocky terrain. Cold temperatures will loosen the surface snow to the point where it loses structure and avalanches as a point release. They can pick up enough mass to be a concern.
Just a reminder, this is still present and can still be triggered from shallow snowpack areas. See avalanche activity summary.
The Jan 31 and Jan 17 surface hoar layers are down ~50 and ~70cm respectively. These layers exists on all aspects, and are most problematic between 1400-1900m and on steep solar aspects where it overlies a crust.
Cold temperatures continue to weaken the surface snow.  Expect sluffing out of steep rocky terrain.
This is still present and could still be triggered from shallow snowpack areas. See MIN report.
A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.
The Jan 31 and Jan 17 surface hoar layers are down ~50 and ~70cm respectively. These layers exist on all aspects and seem most reactive between 1400-1900m, especially on steep solar aspects where they overlie a crust.
Cold temperatures continue to weaken the surface snow. Expect sluffing out of steep rocky terrain.
This problem is still present and could be triggered from shallow snowpack areas. See MIN report.
The Jan 17 Surface Hoar layer is buried 50 to 70cm at and below tree line. This interface exists on all aspects and most reactive between 1400-1900m; especially on steep solar aspects where it overlies a crust.
This problem is still present and could be triggered from shallow snowpack areas. See MIN report.
Storm snow is reactive to human traffic. More specific will information available in tomorrow's forecast
Use caution in steep, sheltered terrain
A layer of weak facets is lurking at the bottom of the snowpack.&nbsp; This new snow may be enough to affect this basal weakness in shallow snowpack areas.
The Jan 17 Surface Hoar layer is buried 50 to 70cm at and below tree line. This interface exists on all aspects and most reactive between 1400-1900m; especially on steep solar aspects where it overlies a crust.
This problem could be triggered from shallow snowpack areas.
Moderate Compression Test Results today on Forum Ridge at the Storm snow interface. 15-30cm of snow over the weekend will continue to build storm slabs.
Use caution in steep, sheltered terrain.
A layer of weak facets is lurking at the bottom of the snowpack. This new snow may be enough to affect this basal weakness in shallow snowpack areas.
The Jan 17 Surface Hoar layer is buried 50 to 70cm at and below tree line. This interface exists on all aspects and most reactive between 1400-1900m, especially on steep solar aspects where it overlies a crust.
Moderate Compression Test Results today on Forum Ridge at the Storm snow interface. 15-30cm of snow over the weekend will continue to build storm slabs.
Use caution in steep, sheltered terrain.
A layer of weak facets is lurking at the bottom of the snowpack. This new snow may be enough to affect this basal weakness in shallow snowpack areas.
It is possible to trigger deep slabs from shallow snowpack areas. If triggered, these will have severe consequences. Terrain management is critical to a safe day.
A few CM of new snow may add to the volume of loose dry avalanches, which have been occurring naturally as the snowpack surface facetted with cold temps. Ice climbers should consider consequences of an avalanche if climbing in confined gully features
It is possible to trigger deep slabs from shallow snowpack areas. If triggered, these will have severe consequences. Terrain management is critical to a safe day.
Little new snow to add to the volume in active loose dry avalanches occurring naturally in the facetted snow from recent cold temps. Ice climbers should consider consequences of an avalanche if climbing in confined gully features
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
A layer of weak facets is lurking at the bottom of the snowpack. This new snow may be enough to affect this basal weakness in shallow snowpack areas.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
A layer of weak depth hoar and facets is lurking at the bottom of the snowpack. Recent snow may have been enough to overload this layer in thin snowpack areas.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Recent snow has been enough to create a slab over deep instabilities below treeline where the snowpack is shallow and weak, and melt freeze crusts have been preserved. These were reactive to skier traffic on Mt. Bertha on Thursday.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Although natural deep persistent slab avalanches have been few and far between lately, they are still possible in isolated places. Steep, unsupported, and thin/variable depth are factors to be wary of.
This problem is probably isolated to terrain where surface snow doesn't show signs of previous wind affect : all elevations at the north end of the bulletin region, but only lower elevations in the Columbia Icefields region
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are sensitive to small natural and human triggers and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Although the basal weakness (depth hoar) is generally dormant, with no recent natural loading of the snowpack, these may still be possible in isolated places. Steep, unsupported, and thin depth are factors to be wary of, as are cornices overhead.
Isolated to steep terrain where surface snow doesn't show signs of previous wind affect : all elevations at the north end of the bulletin region, but only lower elevations in the Columbia Icefields region
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Although the basal weakness (depth hoar) is generally dormant, with no recent natural loading of the snowpack, these may still be possible in isolated places. Steep, unsupported, and thin depth are factors to be wary of, as are cornices overhead.
Isolated to steep terrain where surface snow doesn't show signs of previous wind affect : all elevations at the north end of the bulletin region, but only lower elevations in the Columbia Icefields region
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Watch for reverse loading with recent N-E Winds.
Recent snow has been enough to create a  windslab over deep instabilities below treeline where the snowpack is shallow and weak, and melt freeze crusts have been preserved.
Isolated to steep terrain where surface snow doesn't show signs of previous wind affect.
Although the basal weakness (depth hoar) is generally dormant, with no recent natural loading of the snowpack, these may still be possible in isolated places.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Isolated to steep terrain where surface snow doesn't show signs of previous wind affect.
Although the basal weakness (depth hoar) is generally dormant, with no recent natural loading of the snowpack, these may still be possible in isolated places.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Point release activity is increasing with strong solar input particularly on steep S and W aspects at TL and below.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Watch for new windslabs developing with NE winds, and old windslabs on all aspects.
The basal weaknesses are well bridged in deeper snowpack areas, but there remains the possibility to be surprised in thin snowpack areas.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Point release activity can increase with strong solar input particularly on steep S and W aspects at all elevations. Cold temperatures continue to facet the surface snow causing it to loose cohesion.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
A sustained period of cold weather has created weak, dry, faceted surface snow. In steep terrain, these facets are easily triggered and can quickly gain enough mass to affect skiers and climbers, especially in gullies.
Cold temperatures continue to facet the surface snow causing it to loose cohesion. Point release activity will increase with strong solar input on steep S and W aspects at all elevations.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
Cold temperatures continue to facet the surface snow causing it to loose cohesion. Point release activity will increase with strong solar input on steep S and W aspects at all elevations.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Cold temperatures continue to facet the surface snow causing it to loose cohesion. Point release activity will increase with strong solar input on steep S and W aspects at all elevations.
The basal weakness (aka depth hoar) is generally dormant; however, these may be possible to trigger in isolated shallow snowpack places.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
Old windslabs are lingering in the alpine, and new windslabs will be forming as winds increase from the SW on Thursday
The basal weaknesses are well bridged in deeper snowpack areas, but there remains the possibility to be surprised in thin snowpack areas.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
Cold temperatures have facetted/weakened the upper snowpack. Point release activity will increase with warming on steep solar aspects at all elevations.
The weak and facetted snowpack is about to be tested by warming temperatures, then some new snow, for the first time in over a month. Triggering of the basal weakness may become possible in areas where the snowpack above still retains some cohesion.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Solar triggering of this problem will be come more of a concern over the next few days.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers.
The weak and facetted snowpack is about to be tested by warming temperatures, then some new snow, for the first time in over a month. Triggering of the basal weakness may become possible in areas where the snowpack above still retains some cohesion.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Forecasted snow and winds could increase the reactivity of this problem in the alpine.
Cold weather has created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. Forecasted snow and winds could increase the reactivity of this problem in the alpine.
The weak and facetted snowpack is about to be tested by warming temperatures, then some new snow, for the first time in over a month. Triggering of the basal weakness may become possible in areas where the snowpack above still retains some cohesion.
The basal weaknesses are well bridged in deeper snowpack areas, but there remains the possibility to be surprised in thin snowpack areas.
Cold weather created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. The new snow and winds have triggered many events in the last 24 hrs.
Cold weather created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers. The new snow and winds have triggered many events in the last 24 hrs.
While skiier triggered sluffs may be possible in some areas if adventuring into very steep, shaded terrain, minimal natural activity is expected.  If any, it will be isolated to steep sunny slopes during the afternoons.
Skier triggered sluffs may be possible on both sun, and shaded terrain; minimal natural activity is expected. If any, it will be isolated to steep sunny slopes during the afternoons.
Cold weather created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers.
Cold weather created weak, faceted surface snow. In steep terrain, these facets are easily triggered and can gain enough mass to affect skiers and climbers.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers.&nbsp; Narrow gullies are where this is most concerning.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
If the sun makes an appearance today, steep solar aspects will shed the new snow. Skiers will likely be able to trigger loose dry slides, on steep unsupported terrain features on all aspects.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
Previous cold temperatures created weak, faceted surface snow. In steep terrain, these facets remain easily triggered and can gain enough mass to affect skiers and climbers. Narrow gullies are where this is most concerning.
Natural triggering has abated but human triggering remains a possibility, particularly in steep sheltered terrain.
When the sun makes an appearance today, steep solar aspects will shed the new snow. Skiers will likely be able to trigger loose dry slides on steep unsupported terrain features from all aspects.
Natural triggering has abated but human triggering remains a possibility, particularly in steep sheltered terrain.
If triggered on their own, loose dry avalanches that are smaller in size can be initiated in steep terrain.&nbsp; If triggered by a wind slab, much larger avalanches that can run far are possible as they entrains facets on the way down.
al';font-style: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_6F88C6A0">If triggered on their own, loose dry avalanches that are smaller in size can be initiated in steep terrain.  If triggered by a wind slab, much larger avalanches that can run far are possible as they entrains facets on the way down.</span><span class="s_AA239
Brief periods of intense sunshine are enough to trigger loose avalanches. This being said, northerly aspects are also prone to loose, dry avalanches with the new snow lying on facets.
Natural triggering has abated but human triggering remains a possibility, particularly in steep sheltered terrain.
If triggered on their own, loose dry avalanches that are smaller in size can be initiated in steep terrain. If triggered by a wind slab, much larger avalanches that can run far are possible as they entrains facets on the way down.
span class="s_6F88C6A0">If triggered on their own, loose dry avalanches that are smaller in size can be initiated in steep terrain. If triggered by a wind slab, much larger avalanches that can run far are possible as they entrains facets on the way down.
There remains the possibility to be surprised by deep weak layers in thin snowpack areas. As temperatures rise these will become increasingly unpredictable.
Expect the blower pow that fell overnight to sluff easily and keep in mind that it's sitting on up to 50cm of snow from earlier this week that could also get moving with it! Natural avalanches are possible on solar aspects if the sun comes out.
Watch out for steep rocky features.
The faceted snow is easily initiated as a sluff in steep terrain that will entrain all available loose snow until it hits lower angled terrain. If a windslab or cornice initiates these, expect increased width, mass, momentum and reach.
The faceted snow is easily initiated as a sluff in steep terrain that will entrain all available loose snow until it hits lower angled terrain. If a windslab or cornice initiates these, expect increased width, mass, momentum and reach.
Expect new snow to sluff easily and keep in mind that it's sitting on up to 50cm of snow from earlier this week that could also get moving with it! Natural avalanches are possible on solar aspects if the sun comes out.
Watch out for any sunny, steep features. Expecting good recovery to the surface freeze, overnight Saturday. Progressively rising Hazard over the daytime.
The faceted snow is easily initiated as a sluff in steep terrain that will entrain all available loose snow until it hits lower angled terrain. If a windslab or cornice initiates these, expect increased width, mass, momentum and reach.
While moist snow avalanches will start to become a problem themselves at lower elevations, as solar heating starts to take hold, consider a wider range of possible triggers to be available for the avalanche problems at upper elevations as well.
The faceted snow is easily initiated as a sluff in steep terrain that will entrain all available loose snow until it hits lower angled terrain. If a windslab or cornice initiates these, expect increased width, mass, momentum and reach.
While moist snow avalanches will start to become a problem themselves at lower elevations, as solar heating starts to take hold, consider a wider range of possible triggers to be available for the avalanche problems at upper elevations as well.
Watch out for any sunny, steep features. Expecting some recovery to the surface freeze, overnight Sunday. Progressively rising hazard over the day.
Potential for triggering will increase significantly over the week as the temperatures seep into the snowpack. If triggered, it's expected to be very large, running full path.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Loose avalanches are either running on hard bed surfaces, or entraining the faceted lower snowpack and running larger than normal.
There remains a concern for deep weak layers in thin snowpack areas. Rapidly warming temperatures and solar radiation have the potential to wake them up.
Strong sunshine and rapidly increasing temp's will destabilize the upper snowpack, resulting in wet loose avalanches during the heat of the day. Aspects facing the sun should be avoided while they are baking in the sun.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Loose avalanches are either running on hard bed surfaces, or entraining the faceted lower snowpack and running larger than normal.
There remains a concern for deep weak layers in thin snowpack areas. Rapidly warming temperatures and solar radiation have the potential to wake them up.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Progressively rising hazard over the day. Expect natural and human triggered loose wet avalanches on all sunny slopes, especially where steeper than 35 degrees. These are gouging to ground in thin areas.
As the upper snowpack becomes saturated with water, Wet Slabs are failing on solar aspects. In shallow areas, these are failing on the basal layers.
Strong sunshine and rapidly increasing temp's will destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day. Traveling in avalanche terrain is not recommended today; especially on solar aspects this afternoon.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
We are starting to see places where avalanches are failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Progressively rising hazard over the day. Expect natural and human triggered loose wet avalanches on all sunny slopes, especially where steeper than 35 degrees. These are gouging to ground in thin areas.
As the upper snowpack becomes saturated with water, Wet Slabs are failing on solar aspects. In shallow areas, these are failing on the basal layers.
Strong sunshine and rapidly increasing temp's will destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day. Traveling in avalanche terrain is not recommended today, especially on solar aspects this afternoon.
Progressively rising hazard over the day. Expect natural and human triggered loose wet avalanches on all sunny slopes, especially where steeper than 35 degrees. These are gouging to ground in thin areas.
As the upper snowpack becomes saturated with water, Wet Slabs are failing on solar aspects. In shallow areas, these are failing on the basal layers.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
We have seen a few avalanches failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
We have seen a few avalanches failing on the basal weaknesses and scrubbing to ground. This is mostly occurring with large triggers in thin rocky areas but we expect this type of avalanche activity to increase with more heat.
Strong sunshine and rapidly increasing temps will destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day. Traveling in avalanche terrain is not recommended today, especially on solar aspects this afternoon.
No recent overnight cooling to help recovery. An inversion, layered around 2200-2300m may keep BTL cool overnight but not TL or above. This will mean a constant wet loose hazard, and exposure to BTL run outs should be carefully considered and limited
The upper snowpack is saturated with water, creating Wet Slabs which are failing on solar aspects, sometimes to ground. In shallow areas, these are failing on the basal layers and can move fast on the dryer, weak, facetted snow below.
There remains a concern for deep weak layers in thin snowpack areas. Warm temperatures and solar radiation have the potential to wake them up.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
Extended warm temperatures, solar radiation and buried weak layers are producing wet slab avalanches in all locations except high alpine, north (shady) aspects. The simple answer is to avoid all avalanche terrain until it cools and the snow freezes.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
Extended warm temperatures, solar radiation and buried weak layers are producing wet slab avalanches in all locations except high alpine, north (shady) aspects. The simple answer is to avoid all avalanche terrain until it cools and the snow freezes.
Strong sunshine and rapidly increasing temps will destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day. Traveling in avalanche terrain is not recommended today, especially on solar aspects this afternoon.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
Extended warm temperatures, solar radiation and buried weak layers are producing wet slab avalanches in all locations except high alpine, north (shady) aspects. The simple answer is to avoid all avalanche terrain until it cools and the snow freezes.
Be cautious of overhead hazard on solar aspects when the sun comes out.
Cooling on Saturday should reduce the likelihood of wet slab avalanches but they remain possible, especially if the sun comes out.
Rapidly warming daytime temperatures and high solar inputs are causing loose wet avalanches to start by mid morning. Some of these are running long distances or triggering slabs along the way. Avoid exposure to these slopes when they heat up.
Extended warm temperatures, solar radiation and buried weak layers are producing wet slab avalanches in all locations except high alpine, north (shady) aspects. The simple answer is to avoid all avalanche terrain until it cools and the snow freezes.
A freezing level up to 1900m and a chance of strong solar input could destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day.
The amount of loose wet avalanche activity is related to the amount of solar input .&nbsp; The effects of this will be slightly diminished on Sunday depending on cloud cover but watch locally for heating.&nbsp;
The amount of loose wet avalanche activity is related to the amount of solar input . The effects of this will be slightly diminished on Sunday depending on cloud cover but watch locally for heating.
An isothermal snowpack exists at all elevations on solar aspects. This will need time to cool and settle before becoming truly trustworthy and natural, and especially human triggering is still possible in the meantime.
Cooling should reduce the likelihood of wet slab avalanches but remain possible, especially if the sun comes out.
A freezing level up to 2000m and a chance of strong solar input could rapidly destabilize the upper snowpack, resulting in loose wet avalanches during the heat of the day.
The amount of loose wet avalanche activity is related to the amount of solar input. The forecast does not indicate solar input on Monday, however forecasters are uncertain. Un-forecasted direct solar input will increase the avalanche danger.
The amount of loose wet avalanche activity is related to the amount of solar input. The forecast does not indicate solar input on Monday, however forecasters are uncertain. Un-forecasted direct solar input will increase the avalanche danger.
An isothermal snowpack exists at all elevations on solar aspects. This will need time to cool and settle before becoming truly trustworthy and natural, and especially human triggering is still possible in the meantime.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">High freezing levels, warm temperatures, a chance of solar input, and or rain, will continue to destabilize the upper snowpack. The loose wet avalanche cycle continues on from last week, also a </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/IMG_8463.JPG" target="_blank"><span class="s_9255B882">large glide crack released in Mounds path </span></a><span class="s_AA239A9B">yesterday.
With reduced solar inputs and a cooling temperature trend forecasted this week, the loose wet problem will be less of a concern. Any unforseen increases in temps/solar or significant rain could quickly increase the likelihood of this problem.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
With reduced solar inputs and a cooling temperature trend forecasted this week, the loose wet problem will be less of a concern. Any unforseen increases in temps/solar or significant rain could quickly increase the likelihood of this problem.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
An isothermal snowpack exists on all aspects below treeline, this will require several days of cooler temperatures to fully stabilize, human triggering is still possible in the meantime.
Primarily a Tuesday concern.
There remains a concern for deep weak layers in thin snowpack areas. Warm temperatures and solar radiation have the potential to wake them up.
New snow today will likely become moist at treeline and below.
The isothermal snowpack on all aspects below treeline will require several days of cooler temperatures to fully stabilize, human triggering remains possible.
With reduced solar inputs and a cooling temperature trend forecasted this week, the loose wet problem will be less of a concern. Any unforseen increases in temps/solar or significant rain could quickly increase the likelihood of this problem.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
With reduced solar inputs and a cooling temperature trend forecasted this week, the loose wet problem will be less of a concern. Any unforseen increases in temps/solar or significant rain could quickly increase the likelihood of this problem.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Isothermal snow (warm, moist, oatmeal-like slop) is now insulated by 10-15cm of new snow. Expect difficult travel below 2000m off previous tracks. Use caution on steep slopes below tree-line; there is very little strength holding it together.
Clear skies and warming temperatures will increase the avalanche activity on solar aspects. The recent snow will quickly degrade with any direct solar inputs causing sluffing and loose wet activity.
Clear skies and warming temperatures will increase the avalanche activity on solar aspects. The recent snow will quickly degrade with any direct solar inputs causing sluffing and loose wet activity.
Expect a natural cycle of loose snow avalanches from steep solar slopes tomorrow.
Isothermal snow (warm, moist, oatmeal-like slop) is now insulated by 10-15cm of new snow. Use caution on steep slopes below tree-line; there is very little strength holding it together once the surface crust breaks down.
Expect a natural cycle of loose snow avalanches from steep solar slopes tomorrow.
With the sun forecast to make more of an appearance on Friday and Saturday, the new snow sitting on the previous hard crust will become increasingly reactive.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts cap </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> and the crust has been breaking down by mid afternoon on solar aspects. Use caution on steep slopes when crusts start to weaken, there is very little holding it together once the crust breaks down.
Expect a natural cycle of loose snow avalanches from steep solar slopes tomorrow.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts cap </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> and the crust has been breaking down by mid afternoon on solar aspects. Use caution on steep slopes when crusts start to weaken, there is very little holding it together once the crust breaks down.
Natural cycle of loose snow avalanches can be expected from steep solar slopes
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts cap </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> and the crust has been breaking down by mid afternoon on solar aspects. Use caution on steep slopes when crusts start to weaken, there is very little holding it together once the crust breaks down.
Start early and finish early (be done by early afternoon). Once the day begins to warm up, avoid any gully features where wet snow may run.
Start early and finish early (be done by early afternoon). Once the day begins to warm up, avoid any gully features where wet snow may run.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts are capping </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> in thin snowpack areas, BTL and higher on soar aspects. Crusts have been breaking down by mid afternoon. Use caution on steep solar slopes.
Start early and finish early (by noon). Once the day begins to warm up, avoid any gully features where wet snow may run.
Start early and finish early (by noon). Once the day begins to warm up, avoid any gully features where wet snow may run.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts are capping </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> in thin snowpack areas BTL and higher on solar aspects. Crusts have been breaking down by mid afternoon. Avoid solar aspects in the afternoon!
Likely a cooler day with forecasted cloud cover for Wed and crusts will likely remain intact for the day. Should the forecasted weather be inaccurate, monitor the solar input and daytime heating to avoid any gully features where wet snow may run.
Likely a cooler day with forecasted cloud cover for Wed and crusts will likely remain intact for the day. Should the forecasted weather be inaccurate, monitor the solar input and daytime heating to avoid any gully features where wet snow may run.
Daytime heating will destabilize the snowpack as the surface crust melts. At lower elevations on solar aspects this process will happen more quickly then on Northerly facing slopes at treeline above. Rain will quickly melt these crusts.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts are capping </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> in thin snowpack areas BTL. These crusts are prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
Likely a cooler day with forecasted cloud cover for Thursday and crusts will likely remain intact for the day. Monitor the solar input and daytime heating to avoid any gully features where wet snow may run.
Likely a cooler day with forecasted cloud cover for Thursday and crusts will likely remain intact for the day. Monitor the solar input and daytime heating to avoid any gully features where wet snow may run.
Daytime heating will destabilize the snowpack as the surface crust melts particularly in late afternoons depending on the degree of overnight freeze. Rain can accelerate this process.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts are capping </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> in thin snowpack areas BTL. These crusts are also prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
This problem is directly related to daytime heating and solar inputs. Even on a cloudy day localized solar effect can quickly change the snow stability. Monitor changing conditions and avoid gully features later in the day where wet snow may run.
Daytime heating can destabilize the snowpack particularly in late afternoons depending on the degree of overnight freeze. Rain at lower elevations can accelerate this process.
Daytime warming, the strong spring sun, and rain will all increase the potential for loose wet avalanches to occur. Start and end your day early before surface crusts have a chance to break down.
This problem is directly related to daytime heating and solar inputs. Even on a cloudy day localized solar effect can quickly change the snow stability. Monitor changing conditions and avoid gully features later in the day where wet snow may run.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts are capping </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> in thin snowpack areas BTL. These crusts are also prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
This problem is directly related to daytime heating and solar inputs. Even on a cloudy day localized solar effect can quickly change the snow stability. With new snow expected to fall over existing crusts, monitor conditions closely for change.
This problem is directly related to daytime heating and solar inputs. Even on a cloudy day localized solar effect can quickly change the snow stability. With new snow expected to fall over existing crusts, monitor conditions closely for change.
Isothermal conditions are occurring on all aspects up to 2100m including North aspects particularly late in the afternoon. Overnight freeze stabilizing the snowpack in the a.m.. Rain at lower elevations can quickly accelerate this process.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts are capping </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> in thin snowpack areas BTL. These crusts are also prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
This problem is directly related to daytime heating and solar inputs. Even on a cloudy day localized solar effect can quickly change the snow stability. With new snow expected to fall over existing crusts, monitor conditions closely for change.
This problem is directly related to daytime heating and solar inputs. Even on a cloudy day localized solar effect can quickly change the snow stability. With new snow expected to fall over existing crusts, monitor conditions closely for change.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Surface melt-freeze crusts are capping </span><a href="https://avalanche.org/avalanche-encyclopedia/isothermal/" target="_blank"><span class="s_9255B882">weak isothermal snow</span></a><span class="s_AA239A9B"> in thin snowpack areas BTL. These crusts are also prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
Surface melt-freeze crusts are capping weak isothermal snow in thin snowpack areas BTL. These crusts are also prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
Daytime warming, the strong spring sun, and rain will all increase the potential for loose wet avalanches to occur.
Surface melt-freeze crusts are capping weak isothermal snow in thin snowpack areas BTL. These crusts are also prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
A weak melt-freeze crust is capping frail isothermal snow in thin snowpack areas BTL. These crusts are prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
A weak melt-freeze crust is capping frail isothermal snow in thin snowpack areas BTL. These crusts are prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
Rain on Saturday may trigger loose avalanches below treeline where snow remains.
A melt-freeze crust is capping weak isothermal snow in thin snowpack areas BTL. These crusts are prevalent at tree-line and above on solar aspects. Crusts have been breaking down by mid afternoon from the heat of the day.
Afternoon rain showers may warm surface crusts on lower elevation S aspects to the point of surface crust break down. Small wet surface slides may occur if this comes to pass.
New snow, warm temperatures, and potential solar input shall increase the likelihood of loose wet avalanches today. Steep solar asp will be the primary concern; however, all steep aspects below treeline should be suspect, and not to be trusted.
The new snow will struggle to bond to the old surface layers and sluff easily in steep terrain. Loose dry avalanches can gain mass and potentially trigger storm slabs and or persistent slabs.
Approximately 50cm + of new snow in the last 36 hours, warm temperatures and strong winds formed storm slabs on all aspects and elevations. Loose dry avalanches are also problematic with this much new snow!
70cm of new storm snow has created reactive avalanche conditions on all aspects and elevations. Strong winds during the storm created pockets of heavy loading and slabs on lee features in the alpine.
20cm of new snow is expected to form into a reactive storm slab as the day progresses. The new snow sits atop a previous storm slab from December 3rd that is still poorly bonded. The new snow may trigger this buried layer.
40-50cm of new snow has fallen, sloughing is a concern in steep terrain and gully features
The snowpack structure under the new snow is weak, consisting of facets and depth hoar. If an avalanche is triggered it has potential to scrub down to deeper layers.
40-50cm of new snow has fallen, sloughing is a concern in steep terrain and gully features.
30cm of storm snow has formed a storm slab. The new snow sits atop a previous storm slab that is still poorly bonded to faceted snow and Dec 5th surface hoar layer.
Up to 40 cm of unconsolidated new snow could cause significant sluffing in entrained ice climbing features.
Avalanches possible where wind has stiffened the new snow into a slab.
In many places the snowpack structure under the new snow is weak, consisting of facets and depth hoar. If an avalanche is triggered it has potential to scrub down to these deeper layers resulting in larger avalanches.
The snowpack structure under the new snow is weak, consisting of facets and depth hoar. If an avalanche is triggered it has potential to scrub down to these deeper layers resulting in larger avalanches.
40cm of recent storm snow has formed a slab. The new snow sits over Surface Hoar in some locations.
As of today, large avalanches were reported as initiating on the Nov crust/facet layer and stepping down and gouging to near ground. Some were triggered with large loads (explosives) and one was triggered by a snowboarder on an adventure.
As of today, large avalanches were reported as initiating on the Nov crust/facet layer and stepping down and gouging to near ground. Some were triggered with large loads (explosives) and one was triggered by a snowboarder on an adventure.
Wind slabs are forming on lee slopes and cross loaded features
Specific to steep terrain. Ice climbers should pay particular attention to this
The November 23rd layer is down 80-100+cm and consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
40cm of recent storm snow has formed a slab. The new snow sits over Surface Hoar in some locations.
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance.
The recent snow sits over weak facet and crust layers. Numerous natural and explosive triggered avalanches up to size 3 have been observed on these weak lower layers in the past several days. Human triggering in steep terrain remains a real concern.
The recent snow sits over weak facet and crust layers in many places. Human triggering in steep terrain remains a real concern, especially in thinner snowpack areas. This problem will be less of a concern in thicker snowpack areas.
The November 23rd layer is down 80-100+cm and consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance.
The recent snow sits over weak facet and crust layers. Numerous natural and explosive triggered avalanches up to size 3 have been observed on these weak lower layers in the past several days. Human triggering in steep terrain remains a real concern.
The recent snow sits over weak facet and crust layers. Numerous natural and explosive triggered avalanches up to size 3 have been observed on these weak lower layers in the past several days. Human triggering in steep terrain remains a real concern.
The November 23rd layer is down 80-100+cm and consists of surface hoar at treeline and below, and a crust on steep solar aspects into the alpine.
The recent snow sits over weak facet and crust layers in some areas of the forecast region.&nbsp; Human triggering in steep terrain remains a concern.
The recent snow sits over weak facet and crust layers. Numerous natural and explosive triggered avalanches up to size 3 have been observed on these weak lower layers in the past several days.
The November 23rd layer consists of surface hoar at and below treeline and a crust on steep solar aspects into the alpine. This layer can be found down 80-100cm.
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance.
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance. Solar input has the potential to trigger this problem.
The November 23rd layer consists of surface hoar at and below treeline and a crust on steep solar aspects into the alpine. This layer can be found down +/-100cm.
The widespread Dec 11 surface hoar is now buried down 10cm+. Surface snow will be prone to sluffing fast and far on this layer. This may be an issue in gully or terrain trap features.
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance. Solar input has the potential to trigger this problem.
The November 23rd layer consists of surface hoar at and below treeline and a crust on steep solar aspects into the alpine. This layer can be found down +/-100cm.
The widespread Dec 11 surface hoar is now buried down 10cm+. Surface snow will be prone to sluffing fast and far on this layer. This may be an issue in gully or terrain trap features.
Surface snow will be prone to sluffing.
Strong to extreme winds have stripped fetches in the alpine, leaving very little snow available for transport. Newer wind slabs exist at treeline and below, especially in burnt areas.
Up to 40 cm of new snow since Dec 11th with increasing SW winds. Expect a reactive storm slab in wind exposed features.
Surface snow will be prone to sluffing, especially on steep, unsupported aspects. Sluffs are running fast and far, picking up more snow as it flows down gullies.
Storm slabs are primed for human-triggering on steep unsupported terrain features. Storm slabs overlie the Dec 11th surface hoar layer, which can be found 50-60cm below the surface.
Surface snow will be prone to sluffing, especially on steep, unsupported terrain features. Sluffs are running fast and far, picking up more snow as it flows down gullies.
Storm slabs are primed for human-triggering on steep unsupported terrain features. Storm slabs may step down to the Dec 11th surface hoar layer, which can be found 60-70cm below the surface.
As the snow accumulates, expect sluffing and point releases from steep, rocky terrain and gullies.
1681A555">As the snow accumulates, expect sluffing and point releases from steep, rocky terrain and gullies.
The incoming storm will bring heavy snowfall accompanied by 140km/h+ southwest winds and rain at lower elevations. Avalanche activity will peak on Friday and Saturday.
As new snow accumulates, the hazard will increase.
A touchy storm slab formed Dec 19 over a Stellar layer down 30cm. This layer is expected to be widespread and sensitive to human triggering.
The Dec 11th Surface Hoar(SH), size 5-12mm is down 80cm+. This sliding layer is expected to wake up tomorrow naturally when storm slab releases overload it. This will result in large avalanches likely running to valley bottom.
The Nov 15 melt freeze crust is down deep in the snowpack. This layer may reach threshold for overload from avalanches triggered in upper snowpack layers. The resulting avalanches will be large.
A touchy storm slab is forming and will become more sensitive to human triggering as the storm continues on Saturday.
As the snow accumulates, expect sluffing and point releases from steep, rocky terrain and gullies.
The weak, faceted mid and lower pack is being stressed by the new storm snow and might be reaching threshold. Lots of uncertainty surrounds this layer, but if triggered it would result in a large avalanche.
A touchy storm slab is forming and will become more sensitive to human triggering as the storm continues on Saturday.
As the snow accumulates, expect sluffing and point releases from steep, rocky terrain and gullies.
The weak, faceted mid and lower snowpack is being stressed by the new storm snow and might be reaching threshold. Lots of uncertainty surrounds this layer, but if triggered it would result in a large avalanche.
The atmospheric river continues to bring heavy snowfall accompanied by 120km/h southwest winds and rain below 1700m. Snowfall amounts are uncertain on Saturday, but winds will be strong and freezing levels will remain high.
As new snow accumulates, Expect the hazard to increase.
Warming temperatures are aiding in the formation of a touchy storm slab. This layer is expected to be widespread and sensitive to human triggering.
The Dec 11th Surface Hoar(SH), size 5-12mm is down 100cm+. This sliding layer was reactive in our control yesterday when overloaded by storm slab release. Large avalanches will be running to valley bottom.
The Nov 15 melt freeze crust is down deep in the snowpack. This layer may reach threshold for overload from avalanches triggered in upper snowpack layers. The resulting avalanches will be large.
Storm slabs will be everywhere and will remain reactive while the snowpack adjusts to the new load.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations.&nbsp; Lots of uncertainty surrounds this layer, but if triggered it would result in a large avalanche.&nbsp;
In the short term this will be a problem, especially in gully features and off of sidewalls.
Storm slabs will be everywhere and will remain reactive while the snowpack adjusts to the new load.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Lots of uncertainty surrounds this layer, but if triggered it would result in a large avalanche.
In the short term this will be a problem, especially in gully features and off of sidewalls.
Up to 100cms of new snow has fallen in the last 48 hours. Expect many soft slab avalanches on all aspects and elevations up to size 3 Sunday
A significant amount of snow has accumulated on steep features
Dry loose and storm slab avalanches may step down to weak layers close to the ground producing large avalanches
Continued snowfall accompanied by 120km/h southwest winds has formed touchy slabs
Solar input today could initiate another large natural avalanche cycle! Storm slabs are expected to be widespread and sensitive to human triggering.
The Dec 11th Surface Hoar(SH), size 5-12mm is down 90cm+. This sliding layer was reactive in our control yesterday. Large avalanches will reach valley bottom.
The Nov 23 melt freeze crust is down deep in the snowpack. This layer may reach threshold for overload from avalanches triggered in upper snowpack layers or a large cornice release. The resulting avalanches will be very large.
Expect many soft slab avalanches on all aspects and elevations up to size 3 Sunday
Steep features
Storm slabs continue to be reactive Sunday. Were seeing widespread avalanche activity releasing from this new load. As the storm snow settles over the next few days natural activity will lessen. Human triggering likely persist for much longer.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Avoid exposer to any large overheads hazard.
Storm slabs continue to be reactive Sunday. Were seeing widespread avalanche activity releasing from this new load. As the storm snow settles over the next few days natural activity will lessen. Human triggering likely persist for much longer.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Avoid exposer to any large overheads hazard.
Storm slabs are expected to be widespread and sensitive to human triggering, especially in areas where avalanches have not yet occurred after this weekend's storm.
The Dec 11th Surface Hoar(SH), size 5-12mm is down 90cm+. This sliding layer was reactive in our artillery control over the weekend. Large avalanches will reach valley bottom.
Storm slabs continue to be reactive Monday. We are seeing widespread avalanche activity releasing from this new load. As the storm snow settles over the next few days natural activity will lessen. Human triggering likely persist for much longer.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Avoid exposure to any large overhead hazard.
Surprising little avalanche activity on this layer. Uncertainty related to how sensitive this problem will be to human triggers
Dry loose and storm slab avalanches may step down to weak layers close to the ground producing large avalanches
A significant amount of snow has accumulated on steep features
Storm slabs continue to be reactive Monday. We are seeing widespread avalanche activity releasing from this new load. As the storm snow settles over the next few days natural activity will lessen. Human triggering likely persist for much longer.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. Avoid exposure to any large overhead hazard.
The Dec 11th Surface Hoar(SH), size 5-12mm is down approximately 1m. Try to find this layer in your snow profile today; it is very recognizable. Most of the large natural avalanches that are currently visible in the backcountry slid on this layer.
Surprising little avalanche activity on this layer.
Storm slabs continue to be reactive. Natural activity has lessened but the likelihood of triggering an avalanche is high.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. If you trigger the deep facets it will result in a very large avalanche.
Storm slabs continue to be reactive. Natural activity has lessened but the likelihood of triggering an avalanche is high.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. If you trigger the deep facets it will result in a very large avalanche.
Last weekend's storm saw huge avalanches running on the December 11th surface hoar. As the storm snow morphs into slabs, this layer gets re-primed. A 100cm slab atop well-preserved large surface hoar is a recipe for HUMAN TRIGGERED avalanches.
Storm slabs continue to be reactive. Natural activity has lessened but the likelihood of triggering an avalanche is high.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. If you trigger the deep facets it will result in a very large avalanche.
Storm slabs continue to be reactive. Natural activity has lessened but the likelihood of triggering an avalanche is high.
The weak, faceted mid and lower pack is overloaded by the new storm snow at all elevations. If you trigger the deep facets it will result in a very large avalanche.
We are entering a period of lower probability of triggering a slab, but a high consequence if you do. A 100cm slab sits on well-preserved, large surface hoar. This is a recipe for HUMAN-TRIGGERED avalanches.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche.
We are entering a period of lower probability of triggering a slab, but a high consequence if you do. A 100cm slab sits on well-preserved, large surface hoar. This is a recipe for HUMAN-TRIGGERED avalanches.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche. Reports of whumphing on the basal layer continue.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche. Reports of whumphing on the basal layer continue.
The surface hoar layer down a meter is well preserved in some areas. If triggered this will result in a large avalanche. This consequences are high if this low probability problem is encountered.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche. Reports of whumphfing on the basal layer continue as recent as Friday.
Whumphing observed on this weakness observed below treeline.  Large loads may trigger it.
The weak, faceted lower snowpack remains stressed by the new storm snow at all elevations. If triggered the deep facets it will result in a very large avalanche. Reports of whumphfing on the basal layer continue as recent as Friday.
The surface hoar layer down a meter is well preserved in some areas and human triggering remains possible. Due to the depth of this layer the resulting avalanche would be large.
Whumphing was observed on this weakness below treeline.  This weakness could be triggered by large loads or from thin spots in the snowpack.
Ice climbers should use caution in steep confined features where dry loose snow is present above.
The weak, faceted lower snowpack was heavily loaded by the storm before Christmas . Triggering the deep facets would result in a very large avalanche. Continued reports of whumphfing on these basal layers indicate the potential for human triggering.
The weak, faceted lower snowpack was heavily loaded by the storm before Christmas . Triggering the deep facets would result in a very large avalanche. Continued reports of whumphfing on these basal layers indicate the potential for human triggering.
The surface hoar layer down a meter is well preserved in some areas and human triggering remains possible. Due to the depth of this layer the resulting avalanche would be large.
Continued reports of whumphfing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Continued reports of whumphfing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Storm slabs will become touchy this afternoon as the storm deposits 30cm today. The new snow will be accompanied by moderate to strong wind and rising temperatures. Natural activity will peak this afternoon!
This weakness could be triggered by large loads or from thin spots in the snowpack.&nbsp; This problem seems more pronounced at treeline where whumphing and cracks have been observed.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
As the new snow forms a cohesive slab on top of the Dec 27th surface hoar, expect to see reactive slabs pulling back onto lower angled terrain.&nbsp;
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
This weakness could be triggered by large loads or from thin spots in the snowpack. This problem seems more pronounced at treeline where whumphing and cracks have been observed.
At Treeline we have received 50cm+ of storm snow in the last 36 hours! Winds increased in the overnight period to strong out of the south, but temperatures are cooling. Natural activity has decreased, but human triggering remains likely.
An avalanche initiated in this storm snow may step down and test our deeper weak layers
This weakness could be triggered by large loads or from thin spots in the snowpack. This problem seems more pronounced at treeline where whumphing and cracks have been observed.
10-20cm new expected in the next pulse of the storm. Caution in steep gullies and terrain traps where a small sluff could have large consequences.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
60cm of storm snow this week have created slabs on all aspects. Rising temperatures today will increase reactivity. Strong SW winds will make for deeper slabs in alpine and treeline lees. Large paths have the potential to run below treeline.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
A problem primarily in steep gully features due to the ongoing wind and new snow forecasted. Ice climbers consider the overhead hazard and the possibility of windslabs being triggered by loose dry.
Continued reports of whumphing on the weak, faceted lower snowpack indicate the potential for human triggering. This likelihood will rise with new snow and wind over the next few days. Triggering the deep facets could result in a large avalanche.
A problem primarily in steep gully features due to the ongoing wind and new snow forecasted. Ice climbers consider the overhead hazard and the possibility of storm slabs being triggered by loose dry.
This weakness could be triggered by large loads or from thin spots in the snowpack. This problem seems more pronounced at treeline where whumphing and cracks have been observed.
An additional 30cm is expected tonight and through tomorrow. Caution in steep gullies and terrain traps where a small sluff could have large consequences.
60cm of storm snow this week have created slabs on all aspects. Rising temperatures and strong SW winds will make for deeper slabs in alpine and treeline lees. Large paths have the potential to run below treeline.
Storm slabs have the potential to step down to the December 27th or 11th surface hoar. The 27th is down 60cm and the Dec 11th layer is now buried well over a meter.
This weakness could be triggered by large loads or from thin spots in the snowpack. This problem is more pronounced at treeline where whumphing and cracks have been observed.
The zone has received up to 40-50cm. Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
The 20-40cm of storm snow has been accompanied by strong Westerly winds. Thick slabs in the lees of alpine and treeline features are likely forming due to the winds, and lower down the snow is settling into a slab.
Lots of uncertainty surrounding this layer and what will trigger it with all of the new inputs of snow, wind and warm temperatures. Triggering the deep facets could result in a large avalanche.
The 20-40cm of storm snow has been accompanied by strong Westerly winds. Thick slabs in the lees of alpine and treeline features are likely forming due to the winds, and lower down the snow is settling into a slab.
Lots of uncertainty surrounding the distribution of this layer in Little Yoho and what will trigger it with all of the new inputs of snow, wind and warm temperatures.
Moderate-Extreme SW winds have built fresh slabs in unusual places.  Approach all open terrain with caution. Large paths have the potential to run to valley bottom.
Storm slabs have the potential to step down to the December 27th SH. Which is now buried up to 1m deep.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
This weakness could be triggered by large loads or from thin spots in the snowpack. All explosive triggered avalanches today at treeline and below failed on or close to the ground.
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
Moderate-Extreme S'ly winds have built fresh slabs in unusual places (ie further downslope from ridge). Expect freshly buried slabs- approach all open terrain with caution. Large paths have the potential to run to valley bottom.
Storm slabs have the potential to step down to the December 27th SH, which is now buried up to 1m deep.
An additional 20-40cm of snow Tuesday, Wednesday will add to the previous storm slab problem. At upper elevations this problem could be associated with additional load from moderate to strong winds.
While winds stay elevated and precipitation continues to come in, loose dry avalanches will be a problem in steep terrain. These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
An additional 20-30cm of snow Tuesday, Wednesday will add to the previous storm slab problem. At upper elevations this problem could be associated with additional load from moderate to strong winds.
While winds stay elevated and precipitation continues to come in, loose dry avalanches will be a problem in steep terrain. These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
Incoming snow paired with strong to extreme southwest winds will form new slabs at all elevations that will be reactive to human traffic.
This weakness could be triggered by large loads or from thin spots in the snowpack. All explosive triggered avalanches today at treeline and below failed on or close to the ground.
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
20mm of precip forecast today with gusty S winds will build new touchy storm slabs. Expect buried slabs from this past week's snow and extreme S winds. Approach all open terrain with caution. Large paths have the potential to run to valley bottom.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slabs have the potential to step down to the December 27th SH, which is now buried up to 1m deep. See the </span><a href="https://www.avalanche.ca/map?panel=mountain-information-network-submissions/7707db61-94f2-407b-96ca-cc13cae56c48" target="_blank"><span class="s_9255B882">MIN report</span></a><span class="s_AA239A9B"> from yesterday showing reactivity BTL.
An additional 20-30cm of snow Tuesday, Wednesday will add to the previous storm slab problem. At upper elevations this problem could be associated with additional load from moderate to strong winds.
While winds stay elevated and precipitation continues to come in, loose dry avalanches will be a problem in steep terrain. These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
This weakness could be triggered by large loads or from thin spots in the snowpack.
Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.
An additional 20-30cm of snow Tuesday, Wednesday will add to the previous storm slab problem. At upper elevations this problem could be associated with additional load from moderate to strong winds.
While winds stay elevated and precipitation continues to come in, loose dry avalanches will be a problem in steep terrain. These small events can be enough to trigger a slab on slopes beneath cliffs or on ledges in gully features.
We have seen a few examples of these slabs becoming reactive during the storm. These large avalanches reach run out zones. As loading continues over the next few days, avoid exposure to overhead avalanche terrain.
70cm of new snow with gusty S winds has created touchy storm slabs. Expect buried slabs from this past week's snow and extreme S winds. Approach all open terrain with caution. Large paths have the potential to run to valley bottom.
Storm slabs have the potential to step down to the December 27th SH, which is now buried over a metre deep.
70cm of new snow has the potential to entrain a lot of mass as it flows downhill.
Wind loading has reached critical mass and we are seeing many avalanches on wind loaded features at all elevations and aspects. Expect this to continue Thursday.