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.
10 to 25cm's of snow from last week is bonding poorly to previous surfaces and remains reactive to skier triggering in areas where there is some wind loading and slab development. This is more of a problem in the western areas of the park
A weak and facetted basal layer exists at the bottom of the snowpack. It is still possible to trigger this in many areas at tree line and above. Areas with more wind loading or a stiffer slab above the weak basal facets are of the greatest concern.
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 weak and facetted basal layer exists at the bottom of the snowpack. It is still possible to trigger in specific areas above treeline. Areas with more wind loading or a stiffer slab above the weak basal facets are of the greatest concern.
15 to 30cm's of snow from last week is bonding poorly to previous surfaces and remains susceptible to skier triggering, especially in areas where there has been some wind loading and slab development.
A weak and facetted basal layer exists at the bottom of the snowpack. Smaller surface avalanches may step down to this weak layer.
Northerly winds reverse loading cross-loaded gulley features and South sides of ridge crests.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse could trigger this deep persistent weakness. The cold temperatures will be having a facetting effect on shallow locations.
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.
Winds have been steady in the 40-50km/h range from the north for the past 48 hours. With lots of snow available to transport, expect windslabs on lee features. A size 2 windslab was triggered by skiers yesterday (see details tab).
Northerly winds reverse loading cross-loaded gulley features and South sides of ridge crests.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse could trigger this deep persistent weakness. The cold temperatures will be having a facetting effect on shallow locations.
While the cold temperatures have stabilized the snowpack temporarily, it's overall structure remains weak. Travel under and beside avalanche paths is reasonable, but continue to avoid or be very careful when touching any avalanche start zones.
15-30cm of soft snow is bonding poorly to the Dec 18 layer of surface hoar, and any slab development above this layer should be treated with suspicion. Be wary of this layer in Little Yoho area. Dig down and look for it, and test the slab above.
While the cold temperatures have stabilized the snowpack temporarily, it's overall structure remains weak. Travel under and beside avalanche paths is reasonable, but continue to avoid or be very careful when touching any avalanche start zones.
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.
Sustained moderate to strong winds shifted from the north to the south yesterday. With lots of snow available to transport, expect widespread and touchy windslabs. A size 2 windslab was triggered by skiers on Monday (see details tab).
Northerly winds reverse loading cross-loaded gulley features and South sides of ridge crests.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse could trigger this deep persistent weakness. The cold temperatures will be having a facetting effect on shallow locations.
While the cold temperatures have stabilized the snowpack temporarily, it's overall structure remains weak. Travel under and beside avalanche paths is reasonable, but continue to avoid or be very careful when touching any avalanche start zones.
20-40cm of soft snow is bonding poorly to the Dec 18 layer of large surface hoar on a crust. Any slab development above this layer should be treated with suspicion, such as any wind affected slopes.  Dig down and look for it, and test the slab above.
While the cold temperatures have stabilized the snowpack temporarily, it's overall structure remains weak. Travel under and beside avalanche paths is reasonable, but continue to avoid or be very careful when touching any avalanche start zones.
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.
NW ridgetop winds over the last couple of days have built slabs, some in unusual locations for our area. At lower elevations and closer to the prairies, the winds have been more in a SW direction making the problem more complex.
Continued development expected to occur as winds shift and pick up from the west.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse could trigger this deep persistent weakness.
The overall structure of the snowpack remains weak and not very confidence inspiring. Big features and steep terrain at treeline and above are still suspect and should be approached with caution.
The Dec 18 interface is down 20-30 cm is producing easy to moderate results with field tests. This layer may become more reactive with the forecasted additional loading.
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.
10-15cm of new snow with moderate winds last night. This has likely formed a thin storm slab in exposed ares, concealing existing wind slabs.  Riders may be surprised by this layer, as these avalanches have the potential to trigger deeper layers.
Continued slab development expected to occur on sheltered slopes and cross loaded features primarily in the alpine.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could trigger this deep persistent weakness.
The overall structure of the snowpack remains weak and not very confidence inspiring. Big features and steep terrain at treeline and above are still suspect and should be approached with caution.
The Dec 18 interface is down 25-40 cm is producing easy to moderate results with field tests. This layer may become more reactive with the forecasted additional loading.
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 overall structure of the snowpack remains weak and not very confidence inspiring. Big features and steep terrain at treeline and above are still suspect and should be approached with caution.
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.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.
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.
Although powdery in most places, 25-35cm of new snow is gaining cohesion. Pockets of soft slabs will form near ridge crest where sufficient wind has gotten to it.
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 overall structure of the snowpack remains weak and not confidence inspiring. Big features and steep terrain at treeline and above are still suspect and should be approached with caution.
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.
Light to moderate variable winds are producing soft slabs on sheltered slopes and cross loaded features.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.
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.
10-15 cm of snow expected on Monday night will combine with the existing surface snow to make a storm slab 30-50 cm deep in alpine areas. Human triggering is possible in gullies and convex slopes at higher elevations.
The lower part of the snowpack is weak and will be overloaded easily with much additional load.&nbsp; 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.
A total of almost 50 cm of snow has fallen since Jan 1, combined with wind has created a touch storm slab.  Limit your exposure to thickly treed areas and stay well away from avalanche terrain for Tuesday and Wednesday.
Westerly winds are leading to a build up of wind slab on sheltered slopes and cross loaded features.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.
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.
Total of 30 cm of snow since Jan 2 is mostly unconsolidated, but expect slab formation at higher elevations. Shears in this storm snow were occurring within the upper 25 cm. Any wind or warming will increase this problem dramatically.
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.
Storm slab formation has been limited due to light winds and cold temperatures. This is good news but strong winds on Wednesday will likely increase this problem in alpine areas.
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.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.
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.
Storm slab formation has been limited due to light winds but gullies and large open slopes at treeline and above are best avoided for a few more days..
Warms temperatures and wind on Jan. 7th have created windslabs that overly the Dec. 18th facet/ surface hoar/ crust layer.  Any avalanche triggered on this layer will likely step down to the deep persistent slab layer.
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.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.
Where there are no surface crusts these slabs may remain available for triggering particularly where they have been influenced by the wind.
Continue to watch for this layer which has proven to be extremely variable. Areas where these slabs are thin may should raise added caution.
This layer is still producing results in snow profile stability tests but sings show that it is continuing to bond with the old snow interface. Steeper windloaded features at treeline and above should be treated with respect.
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.
This weak layer exists below a variable mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.
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.
Storm slab formation has been limited due to light winds but gullies and large open slopes at treeline and above are best avoided for a few more days..
This layer has settled into a 40-50cm slab. The bond to old snow continues to improve, but human triggering is still possible in the right location. Use caution on steeper wind loaded features at treeline and above. Note slab changes as you travel.
The Dec 17 instability is still active and can be triggered by human loads on convex rolls and steep terrain. The surface hoar sits on a thick crust, providing a bed surface for larger avalanches. This layer is widespread at treeline.
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.
This weak layer exists below a variable mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.
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.
Recent strong winds have created wind slabs in open areas at tree line and above. If triggered these could easily step down to the Dec 18th layer and create a large avalanche.
The Dec 17 instability is still active and can be triggered by snow riders on convex rolls and steep terrain. The surface hoar sits on a thick crust, providing a bed surface for larger avalanches. This layer is widespread at treeline.
Solar radiation could be a factor today, as temperatures are forecast to warm up with light to no wind. Loose avalanches beginning from cliffs and moist snow is an indication of this instability. Be aware of these changes through the day.
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.
Stiff wind slabs observed in open areas at TL and above. These are sitting on a weak facetted bond will slide with skiers weight. Consider the consequences and chose your adventure carefully.
This weak layer exists below a variable mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.
The Dec 17 instability remains our primary concern. This layer is still active and can be triggered by snow riders in areas where it has not previously avalanche. Likelihood of triggering has decreased but propagation and consequences have increased.
Windslabs can easily be found in most open areas over low density snow. In isolated locations these are significant: hard and thick. Test these surface slabs often with your ski poles and modify your route to manage your exposure should they fail.
Continue to watch for this layer which has proven to be extremely variable. Areas where these slabs are thin should raise added concern.
A persistent weak layer of surface hoar was observed again today at alpine elevations, down 50cm from the top. This layer continues to cause concern, and until it stabilizes then avoidance of steep avalanche starting zones is strongly recommended.
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.
The Dec 17 surface hoar is still a major concern. It has become spotty, but is still reactive in areas where it has not already avalanched. This makes it harder to predict but it is possible to trigger large avalanches where it exists.
Windslabs are easy to spot with no new snow as they appear&nbsp; hard and are often convoluted.
Though this layer is unreactive to skier traffic it could be triggered with&nbsp; a large load such as a cornice or a step down from another avalanche.
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.
A persistent weak layer of surface hoar was observed again today at alpine elevations, down 50cm from the top. This layer continues to cause concern, and until it stabilizes then avoidance of steep avalanche starting zones is strongly recommended.
The Dec 17 surface hoar is still a major concern. It has become spotty, but is still reactive in areas where it has not already avalanched. This makes it harder to predict but it is possible to trigger large avalanches where it exists.
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.
A persistent weak layer of surface hoar/ crust/ facets lurks 50 cm's below the surface. This layer is most reactive at the treeline elevation where it is a surface hoar/ crust combination.
Some small pockets of surface hoar may still be present at and below treeline.
The December 17th surface hoar layer is still a real concern. This layer is widespread at treeline and more spotty at alpine elevations. The December 17th could still be reactive in locations where it has yet to avalanche.
Windslabs can be found in most open areas over low density snow. In isolated locations these are hard and thick. Test these surface slabs often with your ski poles and modify your route to manage your exposure should they fail.
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.
In shallower snowpack areas this layer is facetting out. In deeper areas this layer remains more of a concern.
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.
A persistent weak layer of surface hoar/ crust/ facets lurks 50 cm's below the surface. This layer is most reactive at the treeline elevation where it is a surface hoar/ crust combination.
The December 17th surface hoar layer is still a real concern. This layer is widespread at treeline and more spotty at alpine elevations. The surface hoar sits on a thick crust complex which provides a firm failure plane for avalanches.
10-15cm of new snow sits on top of the January 15 surface hoar layer.  Expect loose avalanches and sluffing in steep terrain.  Although winds have remained light, they are expected to increase. Watch for developing slabs on lee features later today.
In shallower snowpack areas this layer is facetting out. In deeper areas this layer remains more of a concern.&nbsp;
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. This problem will persist for some time, give it careful consideration before entering serious terrain.
A persistent weak layer of surface hoar/ crust/ facets lurks 50 cm's below the surface. This layer is most reactive at the treeline elevation where it is a surface hoar/ crust combination.
Strong South Westerly winds are redistributing existing snow as slab onto sheltered aspects and cross loaded features.
The weak layer of surface hoar and facets from December can still be found but are showing signs of settling out.
New snow was exposed to strong overnight winds. In addition to a developing storm slab, expect a thicker wind slab on leeward micro features and N-NE aspects.&nbsp; These newly formed slabs need time to bond to the old snow surface and will be reactive.
The December 17th surface hoar layer is still a real concern. This layer is widespread at treeline and more spotty at alpine elevations. The surface hoar sits on a thick crust complex which provides a firm failure plane for avalanches.
Strong South Westerly winds are redistributing existing snow as slab onto sheltered aspects and cross loaded features.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
New snow and strong W winds tomorrow afternoon will create wind slabs in open areas at tree line and above. Ice climbers should watch for sluffing in steep gullies as the new snow arrives.
Keep an eye on this layer as the new snow arrives. In shallower snowpack areas this layer has been facetting out. In deeper areas where a stronger slab exists above this layer it is more of a concern.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. This problem will persist for some time, give it careful consideration before entering serious terrain.
With the arrival of new snow and strong winds on Sunday we can expect to see avalanche activity start to increase as a storm slab develops over the Jan 16th surface hoar. This will be of most concern in wind loaded areas.
A persistent weak layer from Dec 18th of surface hoar/crust/facets lurks 40-50 cm's below the surface. This layer is most reactive at the tree line elevation where it is a surface hoar/crust combination.
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.
The December 17th surface hoar layer is still a factor to consider in our snowpack. This layer is widespread at treeline, more spotty at alpine elevations and sits on a thick crust complex which provides a firm failure plane for avalanches.
Moderate south west winds continue to redistribute snow and wind slabs are developing on lee aspects and cross loaded features.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
New windslabs 10 to 40cm deep can be found in almost any lee areas including crossloaded features. These slabs will continue to build Sunday night and Monday with continued precipitation and winds.
With fresh slabs forming above this weak layer down 25 to 50cm it is possible that it becomes active. In shallower snowpack areas this layer has been facetting out. In deeper areas where a stronger slab exists above this layer it is more of a concern
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. This problem will persist for some time, give it careful consideration before entering serious terrain.
New windslabs 15 to 50 cm&nbsp; deep can be found in almost any lee areas including cross loaded features. These slabs will continue to build Sunday night and Monday with continued precipitation and winds.
A persistent weak layer from Dec 18th of surface hoar/crust/facets lurks 50-60 cm's below the surface. This layer is most reactive at the tree line elevation where it is a surface hoar/crust combination.
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.
The new snow load or shallower avalanches could reawaken the Dec 17 surface hoar layer down 90-130cm. This layer is widespread at treeline, more spotty at alpine elevations and sits on a thick crust complex.
This avalanche problem constitutes winslabs up to 40cm thick on lee features in the alpine. The slabs rest on the Jan 16 layer which is a combo of crusts and surface hoar. Although they are less touchy now than on the weekend, approach with caution.
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.
Moderate to strong winds continue to redistribute snow creating wind slabs on lee aspects and cross loaded features.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
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.
In shallower snowpack areas this layer has been facetting out however in deeper areas where a stronger slab exists above, this layer remains more of a concern.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. This problem will persist for some time, give it careful consideration before entering serious terrain.
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.
A persistent weak layer from Dec 18th of surface hoar/crust/facets lurks 50-60 cm's below the surface. This layer is most reactive at the tree line elevation where it is a surface hoar/crust combination.
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.
The December 17 layer may reawaken after being overloaded by slides initiating on the January 15 surface hoar layer. This layer is widespread at treeline and spotty at alpine elevations.
This avalanche problem constitutes winslabs up to 40cm thick on lee features in the alpine. The slabs rest on the Jan 16 layer which is a combo of crusts and surface hoar. Although they are less touchy now than on the weekend, approach with caution.
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.
Moderate winds continue to redistribute snow creating wind slabs on lee aspects and cross loaded features.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
Surface windslabs formed on Jan 18/19 can be triggered by skiers and climbers. Feel for tension in the surface snow and avoid freshly windloaded terrain.
The distribution of this layer is difficult to follow, but assume it exists in the snowpack and look for it in the upper 40 cm.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. This problem will persist for some time, give it careful consideration before entering serious terrain.
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 continues to command respect.
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.
A surface hoar layer, down 1-1.5m, that was buried in mid December continues to be reactive. Avalanche control had a few avalanches stepping down to this layer, even in areas where it had been previously controlled. The new load may wake it up again.
Strong southerly winds during the storm, with lots of low density snow available for transport, will have formed windslabs in lee areas. These deep pockets of windslab may overlie the touchy surface hoar layer.
Surface windslabs formed on Jan 18/19 can be triggered by skiers and climbers. Feel for tension in the surface snow and avoid freshly windloaded terrain.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. Although in some areas, the Dec. 18th layer persists, management of both layers should be the same.
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
Moderate winds have redistributed snow creating wind slabs on lee aspects and cross loaded features.
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
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.
Strong southerly winds during the storm, with lots of low density snow available for transport, will have formed windslabs in lee areas. These deep pockets of windslab may overlie the touchy surface hoar layer.
A surface hoar layer, down 1-1.5m, that was buried in mid December continues to be reactive. Avalanche control had a few avalanches stepping down to this layer, even in areas where it had been previously controlled. The new load may wake it up again.
Windslabs up to 40cm thick are present on lee features at treeline and in the alpine but have started to settle. New slabs will be developing on Sat with strong West winds and will means windslabs will continue to be the main concern.
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.
Surface windslabs formed on Jan 18/19 can be triggered by skiers and climbers. Feel for tension in the surface snow and avoid freshly windloaded terrain.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. Although in some areas, the Dec. 18th layer persists, management of both layers should be the same.
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
Strong SW winds have have scoured open slopes on solar aspects and redistributed 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 weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.
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.
A surface hoar layer, down 1-1.5m, that was buried in mid December continues to be reactive. Avalanche control had a few avalanches stepping down to this layer, even in areas where it had been previously controlled. The new load may wake it up again.
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 weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with new snow load.
New wind slabs will be forming in open areas above tree line with the strong W winds, precipitation and warming temperatures. These can be triggered by skiers and climbers.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. Although in some areas, the Dec. 18th layer persists, management of both layers should be the same.
With the new snow and strong W winds, wind slabs are forming in open areas above tree line. These may fail naturally in some locations and are likely to be skier triggered in steep terrain so avoid freshly wind loaded areas.
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.
A surface hoar layer, down 1-1.5m, that was buried in mid December continues to be reactive. Avalanche control had a few avalanches stepping down to this layer, even in areas where it had been previously controlled. The new load may wake it up again.
New wind slabs will be continuing to form in open areas above tree line with the strong W winds, new snow and warm temperatures. These will be prone to human triggering over the next few days.
In shallower snowpack areas (most of the region) the weak base of the snowpack persists and could be triggered in steep, rocky terrain features. Although in some areas, the Dec. 18th layer persists, management of both layers should be the same.
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.
With the new snow and strong W winds, wind slabs are forming in open areas above tree line. These may fail naturally in some locations and are likely to be skier triggered in steep terrain so avoid freshly wind loaded areas.
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
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with new snow load. A skier accidental size 2.5 occurred starting from low angle terrain (27 degrees) on a NE aspect at treeline.
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
The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with new snow load. A skier accidental size 2.5 occurred Saturday from low angle terrain (27 degrees) on a NE aspect at treeline.
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.
In shallow snowpack areas (most of the region) the weak base of the snowpack persists and has been failing naturally in steep terrain. Although in some areas, the Dec. 18th layer persists, management of both layers should be the same.
New wind slabs will continue to form in open areas above tree line with the strong W winds and warm temperatures. These will be prone to human triggering over the next few days.
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.
The Dec. 18th layer persists in some areas and should be treated with caution as the new snow and warm temperatures have caused several natural avalanches on this layer. Avoid exposure to avalanche terrain until things cool down.
New wind slabs will continue to form in open areas above tree line with the strong W winds and warm temperatures. These will be prone to human triggering over the next few days.
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.
Very strong SW winds over the past few days have created deep windslabs above treeline. These slabs have the potential to trigger the deeper layers in the snowpack, making for a large avalanches. Avoid all windloaded terrain.
The snowpack is structurally very weak - one of the weakest snowpacks seen in years - the facets and depth hoar near the base of the snowpack will produce large avalanches when triggered.
Very strong SW winds over the past few days have created deep windslabs above treeline. These slabs have the potential to trigger the deeper layers in the snowpack, making for a large avalanches. Avoid all windloaded terrain.
The Dec 18 surface hoar still exists in the upper 70 cm of the snowpack, and if triggered can produce a large avalanche.&nbsp; Areas to watch for would be open, north facing glades at treeline where surface hoar can persist for long periods of time.
Heavy snow sits on the December weak layer. Any additional load such as a small point release can step down to this weak layer. Once the slide is moving, it will step down further to ground from the weight of the snowpack.
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.
Very strong SW winds over the past few days have created windslabs in lee terrain above treeline. These slabs have the potential to trigger the deeper layers in the snowpack, making for a large avalanches. Avoid all windloaded terrain.
The basal snowpack remains very weak. The facets and depth hoar near the base of the snowpack will produce large avalanches when triggered.
Heavy snow sits on the December weak layer. Any additional load such as a small point release can step down to this weak layer. Once the slide is moving, it will step down further to ground from the weight of the snowpack.
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.
Strong SW winds over the past 48 hours has  built slabs up to 60cm thick. This extra load combined with a skier will likely initiate an avalanche. As the wind reduce and temperatures drop the condition will improve.
Very strong SW winds over the past few days have created deep windslabs above treeline. These slabs have the potential to trigger the deeper layers in the snowpack, making for a large avalanches. Avoid all windloaded terrain.
The Dec 18 surface hoar still exists in the upper 70 cm of the snowpack, and if triggered can produce a large avalanche. Areas to watch for would be open, north facing glades at treeline where surface hoar can persist for long periods of time.
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.
The basal snowpack remains weak although thin snowpack areas have found rounding depth hoar, a rarity for sure! Steep, thin snowpack areas will be the most likely for human triggering.
The Dec 18 surface hoar still exists in the upper 70 cm of the snowpack, and if triggered can produce a large avalanche. Areas to watch for would be open, north facing glades at treeline where surface hoar can persist for long periods of time.
This weakness is sitting at or close to the ground. Numerous large avalanche failing on this layer during Wednesday's avalanche control.
Forecasters have had easy test results on this layer today.  The tricky thing about this layer is that it is not widespread but can be found in sheltered areas.
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.
Despite the low danger ratings, the deep snowpack remains weak. Avoidance of large open slopes with shallow, rocky areas remains a good idea.&nbsp; Even in low danger there are places that should be avoided.
Forecasters have had easy test results on this layer recently. The tricky thing about this layer is that it is not widespread but can be found in sheltered areas.
While ski conditions are very challenging right now, avalanche conditions have improved. Although it seems unlikely, we are still wondering about the presence of the Dec 18 surface hoar layer down about 50 cm from the surface.
Now 40 to 120cm deep these slabs continue to stand out as a real concern. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
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.
Despite the low danger ratings, the deep snowpack remains weak. Avoidance of large open slopes with shallow, rocky areas remains a good idea. Even in low danger there are places that should be avoided.
While ski conditions are rough right now, avalanche conditions have improved. Although it seems unlikely, there is still some uncertainty about the Dec 18 surface hoar layer down about 50 cm from the surface.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices or from shallow areas by skiers. Explosive control work yielded many results at this interface early in the week.
The interface between storm snow and the melt-freeze crust from the recent warm temperatures warrants investigation. Touchy conditions should be expected in steep terrain, particularly on NE aspects below 2400m.
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 .
Despite the low danger ratings, the base of the snowpack remains weak due to basal depth hoar/facets. Consider this layer carefully when looking to travel in aggressive terrain, especially in thin, rocky areas.
Although it seems unlikely, there is still some uncertainty about the Dec 18 surface hoar layer down about 50-70 cm from the surface.
The interface between storm snow and the melt-freeze crust from the recent warm temperatures warrants investigation. Touchy conditions should be expected in steep terrain, on all aspects below 2400m.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices or from shallow areas by skiers. Explosive control work yielded&nbsp; big results at Marmot on Saturday on this interface.
~20cm of recent snow over a firm surface may be reactive to riders where wind has firmed it up enough to create a soft slab. Areas to watch for this are near ridge crests or cross loaded terrain features.
The mid January surface hoar layer is buried 60-100cm deep.&nbsp; Getting this layer to fail will be difficult but triggering it from shallow areas or from heavy loads such as a cornice fall remains possible.
Despite the low danger ratings, the base of the snowpack remains weak due to basal depth hoar/facets. Consider this layer carefully when looking to travel in aggressive terrain, especially in thin, rocky areas.
The interface between storm snow and the melt-freeze crust from the recent warm temperatures warrants investigation. Touchy conditions should be expected in steep terrain, on all aspects below 2400m.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices or from shallow areas by skiers. Explosive control work yielded big results at Marmot on Saturday on this interface.
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 mid January surface hoar layer is buried 60-100cm deep. Getting this layer to fail will be difficult but triggering it from shallow areas or from heavy loads such as a cornice fall remains possible.
Windslabs on lee features will continue to develop throughout the storm. Continued moderate temperatures will help build windslabs and cornices over steeper features.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices or from shallow areas by skiers. The entire snowpack throughout the forecast region is riding on 15 to 25cm of depth hoar.
The base of the snowpack remains weak due to basal depth hoar/facets.  Continue to avoid large open slopes with shallow snow and rocks, as this is the kind of place where this deep weakness could be triggered.
New windslabs are quickly forming as the West winds push around what little snow has fallen. The bond to the hard crust below seems poor. Use caution: even a small avalanche could push you a long distance over the hard crusts that exist right now.
Now 40 to 120cm deep these slabs continue to stand out as a real concern in the TL and ALP areas that do not have strong surface crusts. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
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.
New windslabs are quickly forming as the West winds push around what little snow has fallen. The bond to the hard crust below seems poor. Use caution: even a small avalanche could push you a long distance over the hard crusts that exist right now.
Now 40 to 120cm deep these slabs continue to stand out as a real concern in the TL and ALP areas that do not have strong surface crusts. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
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.
The January 15 surface hoar layer is down 70-110cm.  Large triggers will be required to wake this layer however it remains possible in shallow snowpack areas or from cornice fall.
Windslabs have developed on lee and cross loaded features at alpine elevations. The debris of four size 2 slab avalanches that initiated in cross loaded terrain in the alpine was observed by our field team in the Icefields area on Tuesday
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices, surface slides or from shallow areas by skiers. The entire snowpack throughout the forecast region is riding on 20cm of depth hoar.
In wind exposed areas and at higher elevations, moderate W winds have created soft slabs. These are primarily isolated to immediate lees at this time. In more sheltered areas, this may not be a problem - watch for wind effect on the surface!
The base of the snowpack remains weak due to basal depth hoar/facets. Continue to avoid large open slopes with shallow snow and rocks, as this is the kind of place where this deep weakness could be triggered.
There is 30-50 cm of loose snow available for windslab formation at higher elevations. Currently these windslabs are very isolated or non-existent, but this will change immediately with any wind. Watch for blowing snow and beware when it happens.
30 - 50 cm of low density powder will sluff easily and run fast and far on the Jan. 30th crust. Watch your sluff in steep terrain and heads up if the wind picks up.
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.
The January 15 surface hoar layer is down 70-110cm. Large triggers, like a cornice fall or other avalanches, are likely required to trigger this layer. Rapid loading forecast by Friday may reactivate this layer.
Windslabs have developed on lee and cross loaded features at alpine elevations.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices, surface slides or from shallow areas by skiers. The entire snowpack throughout the forecast region is sitting on 20cm of depth hoar.
Windslabs exist in isolated areas at higher elevations, and this problem will increase late in the day on Thursday as the storm arrives.&nbsp; The bond to the surface under the windslabs is suspicious, so watch out as this new storm changes conditions.
The base of the snowpack remains weak due to basal depth hoar/facets. Continue to avoid large open slopes with shallow snow and rocks, as this is the kind of place where this deep weakness could be triggered.
There is 30-50 cm of loose snow available for windslab formation at higher elevations. Currently these windslabs are very isolated or non-existent, but this will change on Thursday as the next storm arrives.
30 - 50 cm of low density powder will sluff easily and run fast and far on the Jan. 30th crust. Watch your sluff in steep terrain and heads up if the wind picks up.
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;
The January 15 surface hoar layer buried down 70-110cm is still reactive in many areas. Rapid loading over the next few days may overload it, or storm slab avalanches may step down to this layer.
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.
Now 40 to 120cm deep these slabs continue to stand out as a real concern in the TL and ALP areas that do not have strong surface crusts. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
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.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices, surface slides or from shallow areas by skiers. The entire snowpack throughout the forecast region is sitting on 20cm of depth hoar.
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.
The base of the snowpack remains weak due to basal depth hoar/facets. Additional snow load or a storm slab failure may trigger large to very large avalanches in thin snowpack areas. See forecast details for a photo example of this from today.
25-30cm of heavy snow over lighter snow will make conditions dangerous until the rain and snow stop and temperatures cool down.
Rapid loading and warm temperatures are the types of conditions that can re-awaken buried weak layers. Storm slab avalanches may step down to these  layer as well.
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.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices, surface slides or from shallow areas by skiers. The entire snowpack throughout the forecast region is sitting on 20cm of depth hoar.
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.
The base of the snowpack remains weak due to basal depth hoar/facets. Additional snow load, or a storm slab failure may trigger large to very large avalanches in thin snowpack areas. There were additional avalanches triggered on these facets today.
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.
45-70 cm's of new storm sits on a crust from january 30th. This interface should be considered suspect and large avalanches could have the potential to step down the basal facets for full depth releases in Alpine and TL start zones.
100mm of precipitation that fell as rain and snow is now sitting over the January 30 weak layer. This will make conditions dangerous until the rain and snow stop and temperatures cool down.
Recent intense precipitation and warm temperatures have the ability to reawaken deeper layers. Storm slabs avalanches may step down and propagate on these deep instabilities.
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.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads.
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.
The base of the snowpack remains weak due to basal depth hoar/facets. Additional snow load, or a storm slab failure may trigger large to very large avalanches in thin snowpack areas. There were additional avalanches triggered on these facets today.
Expect storm slabs to continue to fail, either within the storm snow or on the Jan 30 interface, especially at upper elevations.
45-70 cm's of new storm sits on a crust from january 30th. This interface should be considered suspect and large avalanches could have the potential to step down the basal facets for full depth releases in Alpine and TL start zones.
There is now about 1m of heavy storm snow above 1900m where temps have stayed below freezing. This storm slab is the triggering layer for recently observed large avalanches with far-reaching moist deposits.
Recent intense precipitation and warm temperatures have the ability to reawaken deeper layers. Storm slabs avalanches may step down and propagate on these deep instabilities.
Thick storm slabs can be found on all aspects at treeline and above.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads.
Fifty to 90 cm of storm snow exist on the January 30th crust interface. A poor bond exists at this interface and large avalanches have been observed running on this layer.
Isothermal conditions exist at treeline and below. Many loose wet avalanches that have gouged down to ground have been observed below 1800 metres.
The base of the snowpack remains weak due to basal depth hoar/facets. Additional snow load, or a storm slab failure may trigger large to very large avalanches in thin snowpack areas.
50 to 90 cm of storm snow lays over the Jan 30 crust interface. A weak bond exists on this interface and storm snow avalanches are very likely.
The snowpack is very weak at treeline and below elevations due to warm temperatures and isothermal snow conditions.
With around 1m of settled storm snow over the last week, much of that rain below 1600m, time will be needed for instabilities within it to heal.
Persistent weak layers within the top 150cm of the snowpack should not be discounted just yet. Storm slabs avalanches may step down and propagate on these deep instabilities.
Thick storm slabs can be found on all aspects at treeline and above.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads.
At upper elevations the new snow combined with mild temperatures and strong SW winds has created 50cm soft slabs. Rain crusts overly these new slabs to 2200m. Be cautious with steep or unsupported terrain until these slabs can settle and cool.
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.
Now 40 to 120cm deep these slabs continue to stand out as a real concern in the TL and ALP areas that do not have strong surface crusts. Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
Fifty to 90 cm of storm snow exist on the January 30th crust interface. A poor bond exists at this interface and large avalanches have been observed running on this layer. Huge propagations are still possible.
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 base of the snowpack remains weak due to basal depth hoar/facets. Additional snow load, or a storm slab failure may trigger large to very large avalanches in thin snowpack areas.
50 to 90 cm of storm snow lays over the Jan 30 crust interface. A weak bond exists on this interface and storm snow avalanches are possible.
The snowpack is very weak at treeline and below elevations due to warm temperatures and isothermal snow conditions.
A warm, wet and windy storm over the weekend created a storm slab that is up to 1m deep. On lee slopes, wind loading may have made this slab much deeper and more reactive. 
Persistent weak layers within the top 150cm of the snowpack should not be forgotten. They continue to be reactive, and produce very large avalanches. Storm slabs avalanches may step down and propagate on these deep instabilities.
Natural activity has settled down but approach any slopes with caution before jumping in.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads.
Fifty to 90 cm of storm snow exist on the January 30th crust interface. A poor bond exists at this interface and large avalanches have been observed running on this layer. Huge propagations are still possible.
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 base of the snowpack remains weak due to basal depth hoar/facets. Additional snow load, or a storm slab failure may trigger large to very large avalanches in thin snowpack areas.
50 to 90 cm of storm snow lays over the Jan 30 crust interface. A weak bond exists on this interface and storm snow avalanches are possible.
The snowpack is very weak at treeline and below elevations due to warm temperatures and isothermal snow conditions.
Most avalanches triggered on the upper layers are stepping down to the basal weaknesses resulting in very large, destructive avalanches.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten. They continue to be reactive, and produce very large avalanches. Smaller avalanches or cornice failures may step down and propagate on these deep instabilities.
A warm, wet and windy storm over the weekend created a storm slab that is up to 1m deep. On lee slopes, wind loading may have made this slab much deeper and more reactive. Tests indicate that the slab is stabilizing, but triggering is still possible.
50 to 90 cm of storm snow lays over the Jan 30 crust interface. A weak bond exists on this interface and storm snow avalanches are possible.
50 to 90 cm of storm snow exist on the January 30th crust interface. A poor bond exists at this interface and large avalanches have been observed running on this layer. Huge propagations are still possible.
The base of the snowpack remains weak due to basal depth hoar/facets. Initiation of a wind slab or a storm slab may step down to trigger large to very large avalanches in thin snowpack areas.
The 1 meter of storm snow has transitioned into a persistent slab. This slab is sitting on a raincrust/surface hoar weakness.
This layer remains a concern in isolated areas above treeline and may be triggered by large loads.
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.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten, especially while temperatures remain warm. Smaller avalanches or cornice failures may step down and propagate on these deep instabilities.
50 to 90 cm of storm snow exist on the January 30th interface which is a crust below 2000m and facets above. A poor bond exists at this interface and large avalanches have been observed running on this layer. Wide propagations are still possible.
The base of the snowpack remains weak due to basal depth hoar/facets. Initiation of a wind slab or a storm slab may step down to trigger large avalanches in thin snowpack areas.
50 to 90 cm of storm snow lays over the Jan 30 crust interface. A weak bond exists on this interface and storm snow avalanches are possible.
These slabs are sitting on a surface hoar layer in sheltered areas. Triggering of these slabs is possible even in low angle terrain .
This layer remains a concern in isolated areas above treeline and may be triggered by large loads.
At treeline and above expect to find superficial slabs formed by SW winds this week.
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.
These slabs that formed last weekend are sitting on a firm surface or crust 50 to 80cm deep. With continued warm conditions these slabs remain possible to trigger in many areas. The deep persistent layers could also be triggered in isolated areas.
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.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten, especially while temperatures remain warm. Smaller avalanches or cornice failures may step down and propagate on these deep instabilities.
50 to 90 cm of storm snow lays over the Jan 30 crust interface. A weak bond exists on this interface and storm snow avalanches are possible.
50 to 90 cm of storm snow exist on the January 30th interface which is a crust below 2000m and facets above. A poor bond exists at this interface and large avalanches have been observed running on this layer. Wide propagations are still possible.
Deep soft slabs are sitting on this reactive layer. Triggering of these slabs is possible even in low angle terrain .
This layer remains a concern in isolated areas above treeline and may be triggered by large loads.
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.
Persistent weak layers within the top 150cm of the snowpack should not be forgotten, especially while temperatures remain warm. Smaller avalanches or cornice failures may step down and propagate on these deep instabilities.
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 .
This layer has become more reactive with recent weather. Even light loads are enough to trigger full depth avalanches.
Recent winds from many directions have formed wind slabs prime for human triggering.
Isothermal snow exists below 2000m. It will not take much solar input to break down a freeze, especially in steep gully terrain.
The base of the snowpack remains weak due to basal depth hoar/facets. Avalanches have been seen to either fail on this layer, or start as a wind slab which steps down to the ground.
Winds from many different directions have formed fresh wind slabs. These are primed for human triggering.
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.
We have persistent weak layers down between ~1 to 1.5m. Large triggers such as a cornice failure or triggering from shallow areas may release avalanches these layers.
The base of the snowpack remains weak due to the presence of basal depth hoar and facets. Avalanches have been seen to either fail on this layer, or start out as a wind slab and then step down to this layer with wide propagations.
Winds from both the SW and NW have formed fresh wind slabs in open areas above tree line. These are slowly settling out but can still be triggered and may step down to the basal weak layers.
This layer has become more reactive with the recent weather. The weight of skiers, a cornice collapse or surface slides could be enough to trigger these deep and destructive avalanches.
Moderate to strong westerly winds have led to the development of windslabs on lee and cross loaded features.
Recent winds from many directions have formed wind slabs that are susceptible to human triggering. Recent cornice growth is also a concern as these may trigger any deep weak layers that are present in the snowpack.
We have persistent weak layers down between ~1 to 1.5m. A large load such as a cornice failure will be needed to trigger these layers. Alternatively humans may be able to trigger them from shallow areas.
Recent winds from many directions have formed wind slabs that are susceptible to human triggering. Recent cornice growth is also a concern as these may trigger any deep weak layers that are present in the snowpack.
Although these old slabs have seen a lot of abuse from warm temperatures they do produce the only shears in the upper snowpack. Keep an eye on these if you are considering taking on serious terrain.
Now 40 to 120cm deep these slabs continue to stand out as a concern in the TL and ALP areas where there is not a strong Jan 31 crust over them (2200m+). Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
The base of the snowpack remains weak due to the presence of basal depth hoar and facets. Avalanches have been occurring on this layer daily: either failing on this layer, or stepping down to this layer with wide propagations.
Winds from both the SW and NW have formed fresh wind slabs in open areas above tree line. These are settling out but can still be triggered and may step down to the basal weak layers.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
We have persistent weak layers down between ~1 to 1.5m. A large load such as a cornice failure will be needed to trigger these layers. Alternatively humans may be able to trigger them from shallow areas.
Recent winds from many directions have formed wind slabs that are susceptible to human triggering. Recent cornice growth is also a concern as these may trigger any deep weak layers that are present in the snowpack.
Caution in shallow and unsupported areas where wind slab has formed.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
The base of the snowpack remains weak due to the presence of basal depth hoar and facets. Natural activity is tapering off, however human triggering is still likely on this layer.
Winds from both the SW and NW have formed fresh wind slabs in open areas above tree line. These are settling out but can still be triggered and may step down to the basal weak layers.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. If triggered these layers continue to propagate widely.
The base of the snowpack remains weak due to the presence of basal depth hoar and facets. Natural activity is tapering off, however human triggering is still likely on this layer.
Caution in shallow and unsupported areas where wind slab has formed.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. When triggered these layers continue to propagate widely.
Recent winds from many directions have formed wind slabs that are susceptible to human triggering. Recent cornice growth is also a concern as these may trigger any deep weak layers that are present in the snowpack.
Watch for thin areas where facetted layers may be triggered.
The base of the snowpack remains weak due to the presence of basal depth hoar and facets. Natural activity is tapering off, however human triggering is still likely on this layer.
Be cautious near ridge-crests and in lee areas.
Caution in shallow and unsupported areas where wind slab has formed.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
Moderate ridge top winds mainly from the West have developed thin new slabs at treeline and above these will continue to develop with the addition of new snow on Friday.
These old windslabs continue to  produce reluctant shears 25 to 50 cm deep in the upper snowpack and are a concern above 2200m. Keep an eye on these if you are considering taking on serious terrain.
Now 40 to 120cm deep these slabs continue to stand out as a concern in the TL and ALP areas where there is not a strong Jan 31 crust over them (2200m+). Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
Strong and steady overnight winds heave caused wind slab development on lee features. If triggered, winds slabs may propagate larger than expected on a buried crust up to 2200m. Fragile cornice growth at ridge line will be touchy today.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. When triggered these layers continue to propagate widely.
The base of the snowpack is weak due to the presence of basal depth hoar and facets. Natural activity has ceased but skier triggering is still possible on this layer especially in shallow areas and places where the snowpack is unevenly distributed.
Be cautious near ridge-crests and in lee areas.
Caution in shallow and unsupported areas where wind slab has formed.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
Recent winds from many directions have formed wind slabs that are susceptible to human triggering. Recent cornice growth is also a concern as these may trigger any deep weak layers that are present in the snowpack.
Watch for thin, shallow and/or rocky areas where facetted layers may be triggered.
Strong and steady winds heave caused soft slab development on all aspects. If triggered, wind slabs may propagate larger than expected on a buried crust up to 2200m. Fragile cornice growth at ridge line will continue to be touchy.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. When triggered these layers may propagate widely.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural activity has ceased but skier triggering is still possible, especially in shallow areas and places where the snowpack is unevenly distributed.
Caution in shallow and unsupported areas where wind slab has formed.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
Winds slabs have gained critical cohesion and can be triggered by human loads.  Wind slabs may propagate larger than expected on a buried crust up to 2200m. Fragile cornice growth at ridge line will continue to be touchy.
Persistent weak layers down ~1 to 1.5m will likely need a large load such as a cornice failure to be triggered. A light load, like you, may be able to trigger them from shallow areas. When triggered these layers may propagate widely.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural activity has ceased but skier triggering is still possible, especially in shallow areas and places where the snowpack is unevenly distributed.
Caution in shallow and unsupported areas where wind slabs have formed.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
Pockets of wind slab in lee features can be triggered by riders. Wind slabs up to 50cm thick could propagate on a buried crust up to 2200m and surface hoar above that. Cornices are weakening with the temperature swings and are becoming more touchy.
Persistent weak layers down 1 to 1.5m will need a large load such as a cornice failure to be triggered. A light load may be able to trigger them from shallow areas. Heads up when traveling on slopes that could be affected by weakening cornices.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural activity has ceased but skier triggering is still possible, especially in shallow areas and places where the snowpack is unevenly distributed.
Caution in shallow and unsupported areas where wind slabs have formed.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
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!
Fresh slabs can be found near ridgecrests at Treeline and in any lee features in the Alpine. Expect these to be sensitive to skier triggering especially while the temperatures remain warm Tuesday.
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.
Now 50 to 150cm deep these slabs continue to stand out as a concern in the TL and ALP areas where there is not a strong Jan 31 crust over them (2200m+). Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
Variable winds have resulted in wind slabs on exposed slopes. Wind slabs up to 50cm thick could propagate on a buried crust or surface hoar. Cornices are becoming more touchy and have triggered deep slabs recently.
Deep persistent weak layers will need a large load such as a cornice fall or another avalanche to be triggered. A light load may be able to trigger them from shallow areas. Heads up when traveling on slopes threatened by cornices above.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural activity has ceased but skier triggering is still possible, especially in shallow areas and places where the snowpack is unevenly distributed.
Caution in shallow and unsupported areas where wind slabs have formed.
Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.
There are several weak layers in the snowpack that are now difficult to trigger but result in very large avalanches when they do fail. Strong solar radiation or a large cornice failure are possible triggers.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural and human triggering is unlikely, but possible in steep open slopes with shallow snow, or south and west facing terrain during mid-day.
Triggering this weakness requires a large load (such as a cornice) in areas of deeper snowpack but could be triggered by skiers hitting the weak spot in a shallow snowpack.
Caution in shallow and unsupported areas where wind slabs have formed.
There are several weak layers in the snowpack that are now difficult to trigger but result in very large avalanches when they do fail.  Strong solar radiation or a large cornice failure are possible triggers.
Triggering this weakness will require a large load (such as a cornice) in areas of deeper snowpack.
Entrances or convexities with obvious wind effect are likely areas where you may find a shallow wind slab.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural and human triggering is unlikely, but possible in steep open slopes with shallow snow, or south and west facing terrain during mid-day.
Buried windslabs are hiding under the recent low density snow at ridgecrests and lee features. New slabs will develop over Fri/Sat with NE winds and 20-30cm available for transport. This will be touchy until temperatures start to warm up next week.
Now 70 to 180cm deep these slabs continue to stand out as a concern in the TL and ALP areas where there is not a strong Jan 31 crust over them (2200m+). Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
There are several weak layers in the snowpack that are now difficult to trigger but result in very large avalanches when they do fail. Strong solar radiation or a large cornice failure are possible triggers.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural and human triggering is unlikely, but possible in steep open slopes with shallow snow, or south and west facing terrain during mid-day.
Triggering this weakness will require a large load (such as a cornice) in areas of deeper snowpack.
Entrances or convexities with obvious wind effect are likely areas where you may find a shallow wind slab.
There are several weak layers in the snowpack that are now difficult to trigger but&nbsp; may result in large avalanches if they do fail. Strong solar radiation or a large cornice failures are possible triggers.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural and human triggering is unlikely, but possible in steep open slopes with shallow snow, or south and west facing terrain during mid-day.
Triggering this weakness will require a large load (such as a cornice) in areas of deeper snowpack.
There are several weak layers in the snowpack that are now difficult to trigger but may result in large avalanches if they do fail. Strong solar radiation or a large cornice failures are possible triggers.
The lower half of the snowpack is weak due to the presence of basal depth hoar and facet layers. Natural and human triggering is unlikely, but possible in steep open slopes with shallow snow, or south and west facing terrain during mid-day.
There are several weak layers in the snowpack that are now difficult to trigger but may result in large avalanches if they do fail. Strong solar radiation or a large cornice failures are possible triggers.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely, but possible in steep, open , rocky slopes with shallow snow.
There are a number of weak layers in the snowpack that are hard to trigger but could result in large avalanches if they fail. Large cornice fall or prolonged strong solar radiation are possible triggers.
With up to 40cm of low density new snow over the last week, any steep slope could see sluffing. These may not be big enough to bury a person but could knock you over and have serious consequences in the wrong place.
New slabs have developed with the recent snow and NE winds, creating windslabs in places they may not usually be seen. As temperatures warm up and SW build more windslabs on Wed and Thur there will be a spike natural avalanche activity.
These slabs continue to stand out as a concern in the TL and ALP areas where there is not a strong Jan 31 crust over them (2200m+). Be particularly mindful in thin snowpack areas where this layer is more likely to be triggered.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely, but it is still a good idea to avoid steep, open, rocky slopes with shallow snow.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely as the weak layer is dormant, but it is still a good practice to avoid steep, open, rocky slopes with shallow snow.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely as the weak layer is dormant, but it is still a good practice to avoid steep, open, rocky slopes with shallow snow.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
Steep, unsupported terrain is a likely trigger spot for these newly formed hard slabs that are found in all open areas at treeline and above.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely as the weak layer is dormant, but it is still a good practice to avoid steep, open, rocky slopes with shallow snow.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely as the weak layer is dormant, but it is still a good practice to avoid steep, open, rocky slopes with shallow snow.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely as the weak layer is dormant, but it is still a good practice to avoid steep, open, rocky slopes with shallow snow.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
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 the middle of the day.
These slabs are still a concern where the slope hasn't been sun effected. Steep, unsupported terrain is a likely trigger spot for these hard slabs that are found in shaded NE areas at treeline and above.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely as the weak layer is dormant, but it is still a good practice to avoid steep, open, rocky slopes with shallow snow.
Pockets of reactive windslab exist on all aspects due to variable wind directions. These pockets have been reactive to skiers at or near ridge crests, and are increasingly reactive with warm temperatures or when receiving solar radiation.
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 lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may waken up with the warm temperatures. Avoid steep, open, rocky slopes with a shallow snowpack.
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.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
Pockets of reactive windslab exist on all aspects due to variable wind directions. These pockets have been reactive to skiers at or near ridge crests and are increasingly reactive with warm temperatures.
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.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
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 lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may waken up with the warm temperatures. Avoid steep, open, rocky slopes with a shallow snowpack.
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.
New moist snow, with strong southerly winds are forming new windslabs in the alpine. They may bond poorly in areas where they overly crusts, or may be hiding deeper old windslabs. Continued warm temps are making the old windslabs more reactive.
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.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may waken up with the warm temperatures (especially east of the divide where temperatures have been warmer)
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.
These slabs are a concern on shaded NE areas at treeline and above. Rain forecast for Sat will make these slabs more unstable and increase the avalanche danger. If these become rain soaked these could act as a wet slab avalanche.
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.
Strong winds at treeline at above have created a new series of windslabs in lee features. Despite warm temperatures, these new windslabs will likely need a few days to bond to older snow surfaces.
While not reactive recently, the deep persistent weakness could still be triggered by a smaller avalanche or cornice failure.
New moist snow with strong southerly winds have formed new wind slabs in the alpine. They may bond poorly in areas where they overly crusts, or may be hiding deeper old wind slabs. Continued warm temps are making the old wind slabs more reactive.
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.
Deep instabilities in the snowpack have been dormant in recent weeks but may become reactive. The bridging properties of near surface crusts weaken as the snowpack warms. New snow tonight will make persistent slabs a key problem for the weekend.
Snow and high winds Saturday will create poorly bonded windslabs.
Watch for early morning rain and isothermal conditions on low elevation ice climbs.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may waken up with the warm temperatures , rain, or in shallow areas.
5-10 cms of new snow combined with moderate to strong west winds have created pockets of windslab in higher alpine areas. In some areas this is hiding old windslabs which have been reactive . Several skiers have been caught in small slides this week.
Watch for rain in lower elevations
Wind slabs were reactive to skiers triggers yesterday.  Continued warm temperatures and a new precipitation will keep this problem primed today.  Widespread wind slabs at higher elevations may now be concealed by 10cm of new snow. 
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.
Deep instabilities in the snowpack have been dormant in recent weeks but may become reactive. The bridging properties of near surface crusts weaken as the snowpack warms. New snow today will make persistent slabs a key problem.
20cm distributed by winds will make wind slabs touchy in the short term.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may waken up with the warm temperatures , rain, or in shallow areas.
Up to 20cm with mod-strong West winds will form isolated wind slabs in lee features.  These may be touchy in the short term.
Storm slabs and strong SW winds are creating slab conditions on lee aspects. Triggering of these new slabs is likely.
Large cornices or surface avalanches are the likely trigger for this slumbering giant.
Sustained strong to extreme overnight winds. Wind slabs were reactive to human triggering prior to this last storm.
~20cm of dense storm snow at tree line and above. The first significant snowfall in quite some time overlies a variety of surfaces from crust, to facets to wind slab.
A multitude of crusts are buried within the top meter of the snowpack. These may become reactive with the new load we received or with solar radiation. The bridging properties of near surface crusts weaken as the snowpack warms.
20cm distributed by winds will make wind slabs touchy in the short term.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may waken up with the warm temperatures , rain, or in shallow areas.
Soft  slab conditions on lee alpine aspects appear to have bonded well in most locations.  Approach these features with caution and test bonding on the slope from a safe area before committing.
Large cornices or surface avalanches are the likely trigger.
15-20 cm with strong Westerly winds have formed isolated wind slabs in lee features. These may be touchy - especially where the slabs overlay old crusts on solar aspects.
Sustained strong to extreme SW winds Saturday night and Moderate N winds last night creating widespread wind slabs which are reactive to human triggering.&nbsp; Expect these slabs to become even more reactive with solar radiation.
~20cm of dense storm snow at tree line and above. The first significant snowfall in quite some time overlies a variety of surfaces from crust, to facets to wind slab.
A multitude of crusts are buried within the top meter of the snowpack. These have may become reactive with the new load we received and with solar radiation. The bridging properties of near surface crusts weaken as the snowpack warms.
Moderate to strong SW winds on Saturday evening created wind slabs that will be most touchy where they overly suncrusts.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may be more sensitive with the new load, especially in thin areas.
15-20 cm with strong Westerly winds have formed isolated wind slabs in lee features. These may be touchy - especially where the slabs overlay old crusts on solar aspects.
Soft slab conditions on lee alpine aspects appear to have bonded well in most locations. Approach these features with caution and test bonding on the slope from a safe area before committing.
Large cornices or surface avalanches are the likely trigger for this layer.
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.
Skiers in steep terrain can expect the surface snow to sluff. Manage yourself and your group carefully to avoid getting caught by these small avalanches. Avoid terrain where a sluff could trigger a more significant storm slab.
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.
Wind slabs created a few days ago remain a concern particularly combined with the warming and solar radiation that we are expected to get today. This is when they tend to become more reactive to human triggering.
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.
A multitude of crusts and a surface hoar layer are buried within the top meter of the snowpack. These may become reactive with solar radiation as the bridging properties of near surface crusts weaken as the snowpack warms.
These wind slabs are becoming less sensitive, however human triggering is still possible. Likely this will come in the form of a hard wind slab rather than a soft one, if tested.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may be more sensitive with the new load, especially in thin areas.
Windslabs are becoming less touchy. Expect to encounter more hard slabs than soft based on recent strong wind.
Soft slab conditions on lee alpine aspects appear to have bonded well in most locations. Approach these features with caution and test bonding on the slope from a safe area before committing.
Large cornices or surface avalanches are the likely trigger for this layer.
Touchy windslabs continue to be reactive to human triggering. They are most likely to be triggered from a convexity and may propagate widely. Recent winds have also added to cornices, which are fragile and if they fail provide a large trigger.
The upper snowpack is complex, with a multitude of crusts, weak facetted layers, and surface hoar. Solar radiation weakens surface crusts and may make these layers in the top 60cm more reactive. Large slab avalanches have occurred on these layers.
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.
Soft slab conditions on lee alpine aspects appear to have bonded well in most locations. At 2400m a graupel layer marks the interface and may be below 65cm of wind blown snow from last week. This sheared with moderate force during field tests (18th)
Large cornices or surface avalanches are the likely trigger.
These wind slabs have become less sensitive, however human triggering is still possible. Likely this will come in the form of a hard wind slab rather than a soft one, if tested.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may be more sensitive with forecasted new snow load, especially in thin areas.
Windslabs are becoming less touchy. Expect to encounter more hard slabs than soft based on recent strong wind and strong winds forecasted for Thursday.
Touchy windslabs continue to be reactive to human triggering. They are most likely to be triggered from a convexity and may propagate widely. The buried windslabs will be harder to identify, and new slabs are forming with the new snow and wind.
The upper snowpack is complex, with a multitude of crusts, weak facetted layers, and surface hoar. Large slab avalanches continue to sporadically occur on these layers. Cornices are large and fragile and if they fail provide a large trigger.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may be more sensitive with forecasted new snow load, especially in thin areas.
Soft slab conditions on lee alpine aspects appear to have bonded well in most locations. At 2400m a graupel layer marks the interface and may be below 65cm of wind blown snow from last week. This sheared with moderate force during field tests (18th)
Large cornices or surface avalanches are the likely trigger.
New snow continues to load the storm layer which is up to 40cm deep.&nbsp; In exposed lee areas, buried wind slabs within the storm snow will be difficult to identify visually.&nbsp; New&nbsp; snow, wind and warm temperatures will increase the hazard.
The upper snowpack is complex, with a multitude of crusts, weak facetted layers, and surface hoar. Large slab avalanches continue to sporadically occur on these layers. Cornices are large and fragile and if they fail provide a large trigger.
The slabs are continuing to build on N and E aspects with snow transport from strong SW winds. These will become more reactive with daytime heating. Large cornices could provide a trigger for avalanche activity and could be weakened by the heat.
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.
The slabs are continuing to build on N and E aspects with snow transport from strong SW winds. These will become more reactive with daytime heating. Large cornices could provide a trigger for avalanche activity and could be weakened by the heat.
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.
5-10cm of recent storm snow has formed wind slabs up to 35cm in the lee areas of alpine features. These will be sensitive to human triggering on features such as ridge crests and cross loaded gullies. Cornices are also becoming a concern.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may become more sensitive with the forecasted new snow load, especially in thin areas.
New wind slabs are starting to become more sensitive to human triggering on lee features in the alpine. This will continue to increase through the weekend given the current forecast. Cornices will also be a concern with the new snow and wind.
These soft slabs have bonded well in most locations. Slab depths range from 25 to 65cm. Slabs sit on a graupel layer around Marmot and a facet layer elsewhere. Moderate shear tests have been found on this interface.
Large cornices or surface avalanches are the likely trigger.
New snow continues to load the storm layer which is 40-60cm deep. In exposed lee areas, buried wind slabs within the storm snow will be difficult to identify visually. New snow, wind and warm temperatures will increase the hazard.
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.
The upper snowpack is complex with a multitude of crusts, weak facetted layers, and surface hoar. Large slab avalanches continue to sporadically occur on these layers. Cornices are large and fragile and if they fail provide a large trigger.
10 cm of recent storm snow has formed wind slabs up to 35cm in the lee areas at treeline and above. These will be sensitive to human triggering on features such as ridge crests and cross loaded gullies. Cornices are also becoming a concern.
Rain below 2000m Saturday means the snowpack will likely be isothermal below treeline and some treeline areas.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may become more sensitive with the forecasted new snow load, especially in thin areas.
New wind slabs are starting to become more sensitive to human triggering on lee features at treeline and above.&nbsp; Cornices will also be a concern with the new snow and wind.
Watch locally for sun affect as lower elevation slopes may be isothermal Sunday.
These soft slabs have bonded well in most locations. Slab depths range from 25 to 65cm. Slabs sit on a graupel layer around Marmot and a facet layer elsewhere. Moderate shear tests have been found on this interface.
Large cornices or surface avalanches are the likely trigger.
40-50cm of heavy storm snow will need some time to settle out and to bond to the crusts over which it lies. The associated winds were steady yesterday through the overnight period, creating soft slabs in exposed areas.
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.
The upper snowpack is complex with a multitude of crusts, weak facetted layers, and surface hoar. There have been reports of skier triggered slab avalanches failing down 30-60cm on these crusts from neighboring areas.
Recent snowfall with moderate winds and rapid settlement from continued warm temperatures will make soft slab and windslab releases likely from lee features in the alpine and at treeline.
Large cornices or surface avalanches are the likely trigger.
10 cm of recent storm snow has formed wind slabs up to 35cm in the lee areas at treeline and above. These will be sensitive to human triggering on features such as ridge crests and cross loaded gullies. Please see avalanche activity for recent obs.
Recent rain has helped produce isothermal conditions below treeline, especially in the afternoon as a result of daytime warming.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may become more sensitive with the forecasted new snow load, especially in thin areas.
New wind slabs are starting to become more sensitive to human triggering on lee features at treeline and above. Cornices will also be a concern with the new snow and wind.
Watch locally for sun affect as lower elevation slopes may be isothermal Monday.
40-55cm of heavy storm snow over three days will need some time to settle out and to bond to the crusts over which it lies. The associated winds with the storm were steady creating soft slabs in exposed areas.
The upper snowpack is complex with a multitude of crusts, weak facetted layers, and surface hoar. There have been reports of skier triggered slab avalanches failing down 30-60cm on these crusts from neighboring areas.
Although thin in many areas, there are some significant slabs that have grown along the ridge crests. While warm temps limited growth at TL, be prepared for larger slabs above. New snow and continued west winds will continue to build these slabs.
Heating on Thursday will likely provide quite a jolt to accumulating new now. Expect moist activity in the surface snow.
Windslabs are still sensitive to human triggering on lee features at treeline and above. Cornices will also be a concern with the new snow and wind.
Watch locally for sun affect as lower elevation slopes may be isothermal Tuesday.
10 cm of recent storm snow has formed wind slabs up to 35cm in the lee areas at treeline and above. These will be sensitive to human triggering on features such as ridge crests and cross loaded gullies.
The sun is packing a punch these days. Watch out for loose wet sluffs in steep solar terrain if the sun is out.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may become more sensitive with the recent new snow load, especially in thin areas.
Recent snowfall with moderate winds and rapid settlement from continued warm temperatures will create soft slabs and windslabs in lee features in the alpine and at treeline.
Large cornices or surface avalanches are the likely trigger.
Expect the sun to have a lot of power when it makes an appearance. Rising freezing levels make a solar trigger much more likely.
Persistent weak layers down 50-100cm have been triggered recently by light loads, such as skiers or sluffing off of cliffs. These layers have been remotely triggered, and have the tendency to propagate widely.
40-55cm of recent storm snow is settling into a slab and is bonding poorly where it overlies a crust. The associated winds with the storm were steady creating soft slabs in exposed areas. If triggered, the storm slab may step down to deeper layers.
Warm temperatures will be helping bond soft slabs and windslabs in lee features in the alpine and at treeline in shaded lee features.
Large cornices or surface avalanches are the likely trigger.
Expect the sun to have a lot of power when it makes an appearance. Rising freezing levels make a solar trigger much more likely.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may become more sensitive with the recent new snow load, especially in thin areas.
Persistent weak layers down 50-100cm have been triggered recently by light loads, such as skiers or sluffing off of cliffs. These layers have been remotely triggered, and have the tendency to propagate widely.
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.
Quite variable but generally well bonded soft slabs and windslabs in lee features in the alpine and at treeline. Not likely to see much in natural activity but may be possible to trigger underfoot.
Large cornices or surface avalanches are the likely trigger.
There is generally 10-20 cm available for transport and moderate to strong SW wind continues to build windslabs.&nbsp; They are sensitive to human triggering on features such as ridge crests, cross loaded gullies, and steep terrain features.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may become more sensitive with the added snow load from wind and new snow, especially in thin areas.
Windslabs continue to develop today and are still sensitive to human triggering on lee features at treeline and above. Cornices will also be a concern with the new snow and wind.
Persistent weak layers down 50-100cm have been triggered recently by light loads such as skiers and sluffing from steep terrain.  These layers have been remotely triggered and are prone to propagate widely.
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.
Quite variable but generally well bonded soft slabs and windslabs in lee features in the alpine and at treeline. Not likely to see much in natural activity but may be possible to trigger underfoot.
Large cornices or surface avalanches are the likely trigger.
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.
The new snow over the last week is now becoming rain soaked and moist. As the surface layers become weak, rain or sunshine could trigger wet slabs, especially on steeper slopes.
There is generally 10-20 cm available for transport and moderate to strong SW wind continues to build windslabs. They are sensitive to human triggering on features such as ridge crests, cross loaded gullies, and steep lee terrain features.
Rising freezing levels on Friday has the potential to create a loose wet avalanche problem on solar aspects
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may become more sensitive with the rising temperatures.
Windslabs continue to develop today and are still sensitive to human triggering on lee features at treeline and above. Cornices will also be a concern with the new snow and wind.
Layers down 50-100cm have been triggered recently by light loads such as skiers and sluffing from steep terrain. Remote triggering and wide propagations are possible. Cornice failures from warm daytime temperatures could trigger these layers.
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.
There is generally 10-20 cm available for transport and moderate to strong SW wind continues to build windslabs. They are sensitive to human triggering on features such as ridge crests, cross loaded gullies, and steep lee terrain features.
Rising freezing levels on Friday has the potential to create a loose wet avalanche problem on solar aspects
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may become more sensitive with the rising temperatures.
Windslabs continue to develop today and are still sensitive to human triggering on lee features at treeline and above. Cornices will also be a concern with the new snow and wind.
Large cornices or surface avalanches are the likely trigger.
Fresh wind slabs are likely on lee aspects in the alpine.  Older slabs are likely on northerly aspects at treeline.
Layers down 40-100cm have been triggered naturally and by light loads such as skiers and sluffing from steep terrain. Remote triggering and wide propagations are possible. Cornice failures from warm daytime temperatures could trigger these layers.
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 lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Loose wet avalanches could initiate these deeper layers.
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. 
Large cornices or surface avalanches are the likely trigger.
Recent and forecast precipitation could be enough to overload instabilities within our snowpack. A number of weak layers reside in the top 1.5m and were triggered by people in the backcountry last week.
Large cornices or surface avalanches are the likely trigger.
Avalanche activity will depend upon overnight freeze and solar input Sunday. There is a lot of heat and moisture in the lower elevation snowpack.
There is generally 10-20 cm available for transport and moderate to strong SW wind continues to build wind slabs. With a good freeze Sunday these will become less sensitive, but will be found in immediate lees or ridge crests.
The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Loose wet avalanches could initiate these deeper layers.
Recent and forecast precipitation should be enough to overload instabilities within our snowpack. A number of weak layers reside in the top 1.5m and were triggerable by people in the back country last week even without this new load.
Up to 40cm of recent snow in the Alpine over lying a number of crusts and wet layers which were reactive to riders throughout the area. Tread cautiously in the upper elevations where recent precipitation fell as snow.
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.
Strong winds have built large cornices on ridgetops that could fail with the warm temperatures and sun exposure. Recent failures have triggered significant alpine slabs that ran to below treeline elevations.
Fresh wind slabs are likely on lee aspects and cross loaded features in high alpine locations.
Large cornices or surface avalanches are the likely trigger.
There is generally 10-20 cm available for transport and moderate to strong SW wind continues to build wind slabs.
Avalanche activity will depend upon overnight freeze and solar input. There is a lot of heat and moisture in the lower elevation snowpack.
Moderate to strong SW winds have created wind slabs in the alpine that are reactive to skier triggering.
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.
Storm slabs should be expected at tree line elevations and above in the immediate lee of ridge lines and crossloaded features. These slabs are lying over a number of crust and weak layer sandwiches that were previously reactive to skier triggering.
Widespread loose wet avalanches have been occurring in the highway corridor and should be expected in the back country at and below treeline.
Windslabs can be found on lee aspects and cross loaded features at treeline and above.
Large cornices or surface avalanches are the likely trigger for this deep persistent weak layer.
ont-weight: bold;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">There is generally 10-20 cm available for transport and moderate SW winds have created wind slabs in exposed locations. These will be most reactive where they </span><span class="s_2823317B">overlie </span><span class="s_AA239A9B">a sun crust (solar aspects).
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.
A series of weak layers in the top 1.5m of the snowpack are more easily triggered due to the load added by the new snow and rain over the past week. They may be triggered by the added load of a person, another avalanche or a cornice falling.
Windslabs have formed below ridgecrests, often on old crusts. New soft cornice buildup continues.
Windslabs can be found on lee aspects and cross loaded features at treeline and above.&nbsp;
Large cornices or surface avalanches are the likely trigger for this deep persistent weak layer.
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.
A series of weak layers in the top 1.5m of the snowpack are more easily triggered due to the load added by the new snow and rain over the past week. They may be triggered by the added load of a person, another avalanche or a cornice falling.
Windslabs can be found on lee aspects and cross loaded features at treeline and above.
Large cornices or surface avalanches are the likely trigger for this deep persistent weak layer.
Soft slabs up to 30cm deep have formed over the crusts with the recent snow. Although thin in many areas, there are some significant slabs that have grown along the ridge crests.
Small amounts of snow above the crusts will fail easily with solar heating.
The recent growth that has developed on the cornices is quite fragile. With heating or continued wind this new growth may fail and would likely trigger windslabs on the loaded slopes below.
Up to 60cm of new snow exists at higher elevations. Tests show poorly bonded storm snow where buried crusts are present. Hazard will increase when the new storm snow gets a rapid warm up this morning, especially if forecasted clouds don't arrive.
A series of weak layers in the top 1.5m of the snowpack are more easily triggered due to the load added by the new snow and rain over the past week. They may be triggered by the added load of a person, another avalanche or a cornice falling.
Recent wind slabs will become buried with Saturday/Sunday's up-slope storm.
Later in the afternoon as the snow begins to accumulate and load up on southerly aspects in particular, this might produce significant skier triggerable loose snow avalanches.
Recent wind slabs will become buried with Saturday/Sunday's up-slope storm.
Later in the afternoon as the snow begins to accumulate and load up on southerly aspects in particular, this might produce significant skier triggerable loose snow avalanches.
20 cm of snow possible with strong East winds will create a reverse loading condition in the Alpine.
Large cornices or surface avalanches are the likely trigger for this deep persistent weak layer.
30-40cm of rapidly settling storm snow sits over a weak wet layer below 2300m. Stability tests indicate that this layer is triggerable by light loads. At higher elevations moderate winds have created pockets of wind slab and fragile cornices.
A series of weak layers in the top 1.5m of the snowpack are more easily triggered due to the load added by the new snow and rain over the past week. They may be triggered by the added load of a person, another avalanche or a cornice falling.
Up to 20+cm accumulated overnight into Sunday will bring sluffing in steep terrain, especially if the sun pokes through.&nbsp; It will also sluff easily on any harder crust layers. The amount of sluffing will depend highly on any associated wind.
Pockets of wind pressed snow and  windslabs can be found on lee aspects and cross loaded features at treeline and above.
Large cornices or surface avalanches are the likely trigger for this deep persistent weak layer.
New snow will sluff easily on any crust or hard wind pressed surface it is lying over.&nbsp; If winds are stronger than forecast this will augment this problem.
Multiple weak layers in the top 1.0 m of the snowpack. These layers may become more reactive as the snowpack warms with daytime heat and weakens them. Large triggers like cornice falls may also do the trick.
Strong solar radiation is forecast for today. Once the overnight crust breaks down expect more avalanche activity on solar aspects.
Pockets of wind pressed snow and windslabs can be found on lee aspects and cross loaded features at treeline and above.
Low density snow with little slab characteristics blankets the old interfaces and temps remain cool. The solar input on Tuesday and Wednesday could change the problem from loose dry to loose wet or wet slabs on solar aspects very quickly.
New snow will sluff easily on any crust or hard wind pressed surface it is lying over. If winds are stronger than forecast this will augment this problem.
Multiple weak layers in the top 1.0 m of the snowpack. These layers may become more reactive as the snowpack warms with daytime heat and weakens them. Large triggers like cornice falls may also do the trick.
Slabs up to 50cm deep have formed over the crusts with the recent snow. These soft slabs have formed with winds from unusual directions and are likely to be found along ridge crests and in cross loaded features within a slope.
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.
Multiple weak layers in the top 1.0 m of the snowpack. These layers may become more reactive as the snowpack warms with daytime heat and weakens them. Large triggers like cornice falls may also cause avalanches to fail on these layers.
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.
Weak layers in the top meter of the snowpack may become more reactive as the snowpack warms with daytime heat. Large triggers like cornice falls may also cause avalanches to fail on these layers.
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.
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.
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.
Widespread slabs up to 50cm deep formed over a crust early this week are likely to be found along ridge crests and in cross loaded features within a slope. Watch for these on the hunt for dry high elevation north facing snow.
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.
The recent growth that has developed on the cornices is quite fragile. Several failures have occurred during this week, some pulling windslabs and others triggering loose activity at lower elevations to run a significant distance overall.
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.
20cm of moist snow fell at treeline with consistent SW winds. The storm slab sits atop a crust on solar aspects and surface hoar on sheltered N aspects. Strong winds will continue to develop the slab properties of this layer and increase hazard.
The new snow that has fallen on the recent temperature crust has the propensity to power slough on steep slopes in alpine and treeline locations.
40cm of recent storm snow sits over surface hoar on northerly aspects. Associated winds with the storms have been enough to create slabs in exposed areas. Its time to select more conservative terrain.
Wind slabs have formed on lee slopes and cross loaded features at alpine and exposed tree line elevations.
40cm of recent storm snow sits over surface hoar on northerly aspects. Associated winds with the storms have been enough to create slabs in exposed areas. Its time to select more conservative terrain.
A weak layer down 65 cm was producing easy sudden shears yesterday, failing on 4F snow between a crust and a more dense layer.  Whumphing and cracking was observed and was suspected to be caused by failure at this layer. 
Strong winds have redistributed the recent 20-30 cm of snow that has fallen. Pockets of soft snow exist, but heads up for fresh windslabs in high alpine areas and near ridgecrests. Give the couloirs a day or two to settle and sluff.
There have been many reports of cornice chunks falling off of ridge crests which may be big enough a load to trigger an avalanche on the basal facets, or be enough mass to be a hazard themselves.
Strong winds have redistributed the recent 20-30 cm of snow that has fallen. Pockets of soft snow exist, but heads up for fresh windslabs in high alpine areas and near ridgecrests. Give the couloirs a day or two to settle and sluff.
There have been many reports of cornice chunks falling off of ridge crests which may be big enough a load to trigger an avalanche on the basal facets, or be enough mass to be a hazard themselves.
Wind slabs have formed on lee slopes and cross loaded features at alpine and exposed tree line elevations.
As the sun comes out on Thursday, expect the new snow to fail easily over the crusts.
Cornices are large and are susceptible to the powerful solar heating at this time of year. A falling cornice can create a large avalanche on the slope it hits giving them surprising reach in their destructive potential.
40cm of recent storm snow sits over surface hoar on northerly aspects. Associated winds with the storms have been enough to create slabs in exposed areas. Its time to select more conservative terrain.
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</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
Wind slabs have formed on lee slopes and cross loaded features at alpine and exposed tree line elevations.
Strong winds have redistributed the recent 30-40 cm of snow that has fallen. Heads up for fresh windslabs in high alpine areas and near ridgecrests. Assess the bond of the new snow on low consequence slopes before committing to bigger terrain.
There have been many reports of cornice chunks falling off of ridge crests which may be big enough a load to trigger an avalanche on the basal facets, or be enough mass to be a hazard themselves.
Strong winds have redistributed the recent 30-40 cm of snow that has fallen. Heads up for fresh windslabs in high alpine areas and near ridgecrests. Assess the bond of the new snow on low consequence slopes before committing to bigger terrain.
There have been many reports of cornice chunks falling off of ridge crests which may be big enough a load to trigger an avalanche on the basal facets, or be enough mass to be a hazard themselves.
40cm of recent snow has settled into a slab sitting on surface hoar on N'ly aspects and a sun crust on S aspects. Strong winds at ridgetop have created deeper pockets and loaded lee slopes. Today's strong sun will likely make it more reactive.
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.
Wind slabs have formed on lee slopes and cross loaded features at alpine and exposed tree line elevations.
Windslabs exist in many open areas at treeline and above, and expect to see these avalanche during the warm afternoons as the sun effects the snow surface. Watch out for all windloaded rolls.
Another large cornice fall was observed on Wednesday, triggering a size 3 deep slab. The deep facets at the base of the snowpack appear to be waking up with large triggers.
Windslabs exist in many open areas at treeline and above, and expect to see these avalanche during the warm afternoons as the sun effects the snow surface. Watch out for all windloaded rolls.
Another large cornice fall was observed on Wednesday, triggering a size 3 deep slab. The deep facets at the base of the snowpack appear to be waking up with large triggers.
Distribution of winds slabs has been spotty but has been found on southerly aspects. Use caution when transitioning into exposed terrain at tree line and in the alpine.
Previous winds had formed wind slabs on isolated terrain like contained gulley features in upper elevations at TL and above. They are proving to be fairly stubborn with little if any propagation.
Distribution of winds slabs has been spotty but has been found on southerly aspects. Use caution when transitioning into exposed terrain at tree line and in the alpine.
Previous winds had formed wind slabs on isolated terrain like contained gulley features in upper elevations at TL and above. They are proving to be fairly stubborn with little if any propagation.
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.
Strong southerly winds are transporting storm snow and forming wind slabs in exposed areas. When triggered, cohesive wind slabs have the potential for wide propagation where they overlay the Dec 2nd surface hoar.
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.
Expect windslabs on northerly aspects due to the multi hour strong south wind transport. If triggered these slabs have potential for wide propagation on the Dec 2nd SH layer.
Small wind slabs are forming in the immediate lee of prominent features and ridgelines. Areas further to the north have seen, and expected to see, larger snow inputs so greater slab development can be expected in those regions.
Small wind slabs are forming in the immediate lee of prominent features and ridgelines. Areas further to the north have seen, and expected to see, larger snow inputs so greater slab development can be expected in those regions.
Weather models indicating 40mm over the next 48 hours. This significant load will be accompanied by SW winds, leading to new slab formation on lee aspects. The Dec3 layer will be down 60cm if this snow arrives, and will warrant careful investigation.
Currently there are only wind slabs in pockets, but this problem will likely increase in potential size with more snow.
Storm slabs are expected to develop with Tuesdays storm.
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.
Windloading has formed windslabs on alpine and treeline northerly aspects.  In some locations these slabs will be resting on the Dec 2nd surface hoar layer and will be sensitive to human triggering.
Weather models indicating 40mm over the next 36 hours. This significant load will be accompanied by SW winds, leading to new slab formation on lee aspects. The Dec3 layer will be down 60cm if this snow arrives, and will warrant careful investigation.
15-40 cms of storm snow in the alpine and at treeline is being blown by moderate to strong S/ SW winds and forming windslabs in immediate lees of prominent features and ridgelines.
30 -50 cms of storm snow in the alpine and at treeline is being blown by moderate to strong S/ SW winds and forming windslabs in immediate lees of prominent features and ridgelines.
The Dec 2nd surface hoar layer has reached critical load. Expect the storm slab to be reactive to both human and natural triggering.
Strong S winds formed wind slabs on N aspects in the alpine and tree-line. In some locations these slabs will be resting on the Dec 2nd surface hoar layer and will be sensitive to human 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.
30 -50 cms of storm snow in the alpine and at treeline is being blown by moderate to strong S/ SW winds and forming windslabs in immediate lees of prominent features and ridgelines.
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.
15-40 cms of storm snow in the alpine and at treeline is being blown by moderate to strong S/ SW winds and forming windslabs in immediate lees of prominent features and ridgelines.
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.
Strong S winds formed wind slabs on N aspects in the alpine and tree-line. In some locations these slabs will be resting on the Dec 2nd surface hoar layer and will be sensitive to human 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 snowfall has been a great addition to the snowpack, and should help set the stage for the winter. The bonding of this new snow at the Dec 3 interface down 60cm is the condition to monitor right now.
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 cms of storm snow in the alpine and at treeline was blown by moderate to strong S-SW-SE winds in immediate lees of prominent features and ridgelines.
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.
With ~1m of new snow available for transport, strong S winds have formed wind slabs on N aspects in the alpine and tree-line. These pockets of windslab have been reported to be reactive to triggering.
Above ~1800m temps remained cool and in areas sheltered from the wind there will be lots of loose snow available to sluff. Be aware that it can easily accumulate and trigger underlying slabs, especially the Dec 2 surface hoar / crust layer.
A touchy 15cm windslab can be found in lee areas at treeline and into the alpine. Several natural avalanches started with this slab and then stepped down to full depth releases in the alpine.
Recent snowfall has been a great addition to the snowpack, and should help set the stage for the winter. The bonding of this new snow at the Dec 3 interface down 60cm is the condition to monitor right now.
The recent storm was accompanied by moderate to strong winds at treeline and above. For a few more days, watch out for fresh windslabs in typically suspicious areas after a storm: leeward and cross loaded slopes or slopes near ridge crests.
The recent storm was accompanied by moderate to strong winds at treeline and above. For a few more days, watch out for fresh windslabs in typically suspicious areas after a storm: leeward and cross loaded slopes or slopes near ridge crests.
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.
With ~1m of new snow available for transport, strong S winds have formed wind slabs on N aspects in the alpine and tree-line. These pockets of windslab have been reported to be reactive to triggering.
A touchy 15cm windslab can be found in lee areas at treeline and into the alpine. Several natural avalanches started with this slab and then stepped down to full depth releases in the alpine.
Recent snowfall has been a great addition to the snowpack, and should help set the stage for the winter. The bonding of this new snow at the Dec 3 interface down 60cm is the condition to monitor right now.
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.
The recent storm was accompanied by moderate to strong winds at tree line and above. Things are improving but watch out for wind slabs in typically suspicious areas after a storm: leeward and cross loaded slopes or slopes near ridge crests.
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.
The recent storm was accompanied by moderate to strong winds at tree line and above. Things are improving but watch out for wind slabs in typically suspicious areas after a storm: leeward and cross loaded slopes or slopes near ridge crests.
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.
A touchy 15cm windslab can be found in lee areas at treeline and into the alpine. Several natural avalanches started with this slab and then stepped down to full depth releases in the alpine following last weeks storm.
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.
A touchy 15cm windslab can be found in lee areas at treeline and into the alpine. Several natural avalanches started with this slab and then stepped down to full depth releases in the alpine following last weeks storm.
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.
With increasing winds Saturday night, continue to watch for wind slabs in typically suspicious areas: leeward and cross loaded slopes or slopes near ridge crests.
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.
Early December crusts may also act as weak layers.
A 10 to 15cm windslab can be found in lee areas at treeline and into the alpine. Several natural avalanches started with this slab and then stepped down to full depth releases in the alpine following last weeks storm.
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.
Small windslabs formed with the last storm and are slowly settling out. These were reactive with explosive triggers in the Sunshine area on Monday,
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.
A thin windslab can be found in lee areas at treeline and into the alpine. Several natural avalanches started with this slab and then stepped down to full depth releases in the alpine following last weeks storm.
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.
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.
Watch for sloughs running fast and far where previous crusts are near the surface.
Previous storm slabs have not been reactive for several days.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Watch for fresh storm slab development when the wind increases.
A thin windslab can be found in lee areas at treeline and into the alpine. Several natural avalanches started with this slab and then stepped down to full depth releases in the alpine following last weeks storm.
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.
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.
New (and previously) building windslab will be found in lee areas at treeline and into the alpine.
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 a developing wind slab in exposed areas as strong westerly winds transport recently fallen snow. Significant loading from wind transport can be expected in lee areas and may be easily triggered by riders.
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.
New (and previously) building windslab will be found in lee areas at treeline and into the alpine.
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.
New snow and light wind transport have created storm slabs. These may entrain loose snow in their track and grow in size.
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">
Watch for a developing wind slab in exposed areas as moderate south westerly winds transport recently fallen snow. Significant loading from wind transport can be expected in lee areas and may be easily triggered by riders.
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.
Steady Southwest winds and light precipitation expected to build new soft slabs in the alpine and exposed areas at treeline.
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.
Moderate S-SW winds are forecast by mid morning this morning. Expect freshly formed windslab on alpine lee features and treeline ridges as moderate winds transport low density storm snow.
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.
These may be hidden under light new snow by Tuesday.
May be building Monday night.
Steady Southwest winds and light precipitation expected to build new soft slabs in the alpine and exposed areas at treeline.
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.
4-5 hours of low end of moderate southerly winds are expected to have formed soft slabs in the immediate lee of alpine and treeline ridges and cross winded features.
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.
Periods of moderate winds from various directions have redistributed the snow around in the alpine producing surface roughness and soft slab
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.
Wind slabs can be expected to be most developed in the alpine on cross winded and NE facing terrain.
The Dec3 interface down 50cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
These are now hidden under the low density new snow.
Recent winds have been shifting from the S to the N, creating pockets of soft windslab in lee features. Be especially cautious in steep terrain where the consequences of a fall caused by a small pocket of windslab would be serious.
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.
Wind slabs can be expected to be most developed in the alpine on cross winded and NE facing terrain.
The Dec3 interface down 60cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
The existing Wind Slabs are variable in size and distribution. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Watch for new wind slab development if forecast periods of Moderate Westerly winds eventuate.
A large natural slab avalanche was observed today, that 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.
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.
Wind slabs can be expected to be most developed in the alpine on cross winded and NE facing terrain.
The Dec3 interface down 60cm appears to be bonding well, but be sure to evaluate steep and committing features, particularly around treeline.
Expect loose snow sluffing in steep to extreme terrain. Plan to regroup in safe locations and avoid exposure to terrain traps.
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.
Wind slabs can be expected to be most developed in the alpine on cross loaded and NE facing terrain.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
Watch for new wind slab development with ongoing Moderate to Strong Westerly winds.  </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Fresh windslabs may become buried with light snowfall later in the forecast period.
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.
Wind slabs can be expected to be most developed in the alpine with some redistribution and reverse-loading to happen as the winds shift 180 degrees.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
Loose dry snow sluffs can be expected in very steep terrain. This could be an issue in steep gullies and terrain traps.
Wind slabs can be expected to be most developed in the alpine and open tree-line ridge tops.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
Recently formed windslabs are now being buried by light snowfall
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.
Isolated windslabs exist at treeline and in alpine areas. It's hard to pin down exactly where these are, but we have seen two small avalanches in the past 48-hours. Be aware of these, and watch the surface snow closely in exposed areas.
Isolated windslabs exist at treeline and in alpine areas. It's hard to pin down exactly where these are, but we have seen two small avalanches in the past 48-hours. Be aware of these, and watch the surface snow closely in exposed areas.
Wind slabs can be expected to be most developed in the alpine and open tree-line ridge tops.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
The sun sure feels good but it also packs a punch into the snowpack. Expect solar triggered avalanches from steep solar aspects, especially if there are exposed rocks and cliffs baking in the sun. Expect sluffing from steep slopes on your descent.
Small sluffs may trigger previous windslabs.
Previously formed windslabs are now difficult to detect as they were buried by the recent new snow.
Isolated windslabs exist at treeline and in alpine areas. It's hard to pin down exactly where these are, but several natural and skier triggered avalanches (up to size 1.5) have been reported in the past 48-hours.
Isolated windslabs exist at treeline and in alpine areas. It's hard to pin down exactly where these are, but several natural and skier triggered avalanches (up to size 1.5) have been reported in the past 48-hours.
Wind slabs can be expected to be most developed in the alpine and open tree-line ridge tops.
The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.
With Alpine temps forecasted to reach zero today, the sun will have a greater effect on the snowpack. Expect solar triggered avalanches from steep solar aspects, especially around rocks and cliffs. Expect sluffing from steep slopes on your descent.
Solar triggered sluffs entraining loose snow in steep solar facing gulleys.
Wind slabs can be expected to be most developed in the alpine and open tree-line ridge tops.
Isolated windslabs exist at treeline and in alpine areas. It's hard to pin down exactly where these are, but several natural and skier triggered avalanches (up to size 1.5) have been reported in the past week.
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.
Isolated windslabs exist at treeline and in alpine areas. It's hard to pin down exactly where these are, but several natural and skier triggered avalanches (up to size 1.5) have been reported in the past week.
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.
With Alpine temps forecasted to reach zero today, the sun will have a greater effect on the snowpack. Expect solar triggered avalanches from steep solar aspects, especially around rocks and cliffs. Expect sluffing from steep slopes on your descent.
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.
Isolated windslabs exist at treeline and in alpine areas. It's hard to pin down exactly where these are, but several natural and skier triggered avalanches (up to size 1.5) have been reported in the past week.
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.
Isolated windslabs exist at treeline and in alpine areas. It's hard to pin down exactly where these are, but several natural and skier triggered avalanches (up to size 1.5) have been reported in the past week.
Solar triggered sluffs entraining loose snow in steep solar facing gulleys.
Wind slabs can be expected to be most developed in the alpine and open tree-line ridge tops.
Watch for warm temperatures and clear skies on Saturday to destabilize the surface snow on sunny slopes.
Small surface wind slabs are still visible in isolated locations, while older large wind slabs are buried under a skiff of recent snow.
A buried surface hoar layer has produced sudden results in snowpack tests at treeline. This layer is now a concern due to rapid warming of the snowpack and strong solar radiation.
Warm temperatures above 1900m and strong solar input have created touchy conditions in isolated terrain. Expect solar triggered avalanches from steep solar aspects, especially around rocks and cliffs. Expect sluffing from steep slopes as you descend.
Wind slabs can be expected to be most developed in the alpine and open tree-line ridge tops.
The sun is triggering moist snow sluffs that entrain the dry facets or moist surface snow below. Ice climbers and skiers should expect loose wet snow avalanches to size 2 out of steep rocky South facing terrain.
The sun is triggering moist snow sluffs that entrain the dry facets or moist surface snow below. Ice climbers and skiers should expect loose wet snow avalanches to size 2 out of steep rocky South facing terrain.
With a return to cooler temperatures, the likelihood of this problem is decreasing. With strong solar input, loose avalanches are still a problem especially around rocky outcrops.
Isolated wind slabs in exposed areas above treeline.
A buried layer of Surface Hoar will be difficult to trigger, but has potential to propagate widely. Follow good travel techniques, such as spacing out, and regrouping only in safe spots.
Loose sluffs can be expected in steep rocky terrain.  This will be more pronounced given strong solar input.
Isolated wind slabs in exposed areas above treeline.
Loose sluffs can be expected in steep rocky terrain. Gullies can focus the force of moving snow, causing these innocent-looking masses to pack a punch.
Isolated wind slabs in exposed areas above treeline.
Loose sluffs can be expected in steep rocky terrain. Gullies can focus the force of moving snow, causing these innocent-looking masses to pack a punch.
Isolated wind slabs in exposed areas above treeline.
A buried layer of Surface Hoar will be difficult to trigger, but has potential to propagate widely.
Extra caution is advised if forecast snowfall amounts are exceeded.
Loose dry sluffs can be triggered out of steep terrain.  The sluffs are running far and can easily gain enough mass to affect a skier or boarder.
Loose dry sluffs can be triggered out of steep terrain. The sluffs are running far and can easily gain enough mass to affect a skier or boarder.
Loose sluffs can be expected in steep terrain. Gullies can focus the force of moving snow, causing these innocent-looking masses to pack a punch.
Isolated wind slabs in exposed areas above tree line.
Loose dry sluffs can be triggered in steep terrain due to the combination of recent snow and surface facetting. The sluffs are running far and can easily gain enough mass to affect a climber, skier or boarder.
Loose dry sluffs can be triggered in steep terrain due to the combination of recent snow and surface facetting. The sluffs are running far and can easily gain enough mass to affect a climber, skier or boarder.
Loose sluffs can be expected in steep terrain. Gullies can focus the force of moving snow, causing these innocent-looking masses to pack a punch.
This layer has become difficult to trigger but has the potential to propagate widely.
Loose dry sluffs can be triggered in steep terrain due to the combination of recent snow and surface facetting. The sluffs are running far and can easily gain enough mass to affect a climber, skier or boarder in confined features.
Isolated wind slabs in exposed areas above tree line.
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.
Isolated wind slabs in exposed areas above tree line.
Loose dry sluffs can be triggered in steep terrain due to the combination of recent snow and weak, faceted surface layers . These can run far and easily gain enough mass to affect a climber, skier or boarder especially in confined features.
Sluffs can be triggered in steep terrain by very light loads. Take care in cliffy or lee terrain where mushrooms, tree bombs, or wind can move snow. The sluffs are running far and can easily gain enough mass to affect a climber, skier or boarder.
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.
Loose dry sluffs can be triggered in steep terrain due to the combination of recent snow and weak, faceted surface layers . These can run far and easily gain enough mass to affect a climber, skier or boarder especially in confined features.
Sluffs can be triggered in steep terrain by light loads. Take care in cliffy or lee terrain where mushrooms, tree bombs, or wind can move snow. The sluffs are running far and can gain enough mass to affect a climber, skier or boarder.
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.
The snow feels old. It is dry and becoming very facetted, meaning it has little in the way cohesion and sluffs easy. For people riding steep slopes, remember your sluff management, and ice climbers watch you don't get knocked off your feet.
Although our area only received about 10 cm of snow earlier this week, rising winds above treeline have created isolated windslabs up to 30 cm deep, sometimes bonding poorly to the underlying suncrust or facets.
The snow feels old. It is dry and becoming very facetted, meaning it has little in the way cohesion and sluffs easy. For people riding steep slopes, remember your sluff management, and ice climbers watch you don't get knocked off your feet.
Although our area only received about 10 cm of snow earlier this week, rising winds above treeline have created isolated windslabs up to 30 cm deep, sometimes bonding poorly to the underlying suncrust or facets.
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.
The new snow from last night is sluffing very easily in steep terrain below treeline. Skiers remember to manage the sluffs, and ice climbers watch you don't get knocked off your feet.
Isolated wind slabs in exposed areas above tree line.
Loose dry sluffs can be triggered in steep terrain due to the combination of recent snow and surface facetting. The sluffs are running far and can easily gain enough mass to affect a climber, skier or boarder in confined features.
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.
Previous SW winds have created pockets wind slab at treeline and above.  These slabs are sitting above a weak facet layer and may be triggered in steep terrain. 
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.
Previous SW winds have created pockets wind slab at treeline and above. These slabs are sitting above a weak facet layer and may be triggered in steep terrain.
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.
Previous SW winds have created pockets wind slab at treeline and above. These slabs are sitting above a weak facet layer and may be triggered in steep terrain.
These may lie on a weak layer formed in dry weather during early January - suncrust on solar aspects, and facets / surface hoar all other aspects. Dig to see if this layer exists before committing to open slopes, as it may allow wide propagations.
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.
Moderate Southwest winds are transporting the recent 10cm of snow and forming touchy new windslabs in the alpine, particularly in lee and crossloaded terrain features.
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.
These Wind Slabs are widespread, but generally stubborn at treeline. However, they may be touchy and propagate widely where they sit directly on a weak layer of suncrust/facets/surface hoar buried during early January. Avoid obviously loaded slopes.
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.
Moderate Southwest winds are transporting the recent 10cm of snow and forming touchy new windslabs in the alpine, particularly in lee and crossloaded terrain features.
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).
10-25 new snow from the past week will move with mod- strong West wind &amp; warms temperatures over Thursday and Friday building windslabs over weak faceted snow surfaces.  We expect a small avalanche cycle by Friday.
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.
The incoming snow and 10-25 new snow from the past week will build windslabs over the weak faceted snow surfaces with the forecast for&nbsp; mod- strong West wind &amp; warm temperatures over Thursday &amp; Friday. We expect a small avalanche cycle by Friday.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
Moderate Southwest wind and new snow will continue to create windslabs in the alpine and at treeline over the course of the week.
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.
Significant wind event (Strong SW) transporting available snow to produce touchy wind slabs in lee and cross-loaded terrain in the alpine.
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.
Continued formation of wind slabs will occur Friday, and these will entrain new snow and facets which can run further than expected.
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.
Forecasted strong Westerly winds and new snow will continue to form touchy wind slabs over the previous facetted surfaces.&nbsp; Once initiated, these can gouge down to the facets and run further than expected, especially in thin snowpack areas.
These Wind Slabs are widespread in exposed areas, and may also be found in isolated locations below treeline. Avoid obviously loaded slopes.
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.
Significant wind event (Strong SW) transporting available snow to produce touchy wind slabs in lee and cross-loaded terrain.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
Windslabs will continue to build Friday night. Natural avalanche activity will taper on Saturday but the windslabs will remain touchy to human triggering.
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.
Forecasted strong Westerly winds and new snow will continue to form touchy wind slabs over the previous facetted surfaces. Once initiated, these can gouge down to the facets and run further than expected, especially in thin snowpack areas.
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.
7hrs of moderate S winds have created storm slabs on alpine and treeline lee features. 
A significant SW wind event produced touchy wind slabs in lee and cross-loaded terrain at tree line and above.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
Many ridgecrest features have been loaded by S and SW winds with the recent storm and new cornice growth is evident. Soft slabs may become buried by incoming snow tonight and may not appear obvious.
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 snow that has slowly accumulated over the older sugary facets is starting to form a slab. Use hand tests to evaluate the bond at this interface found 20 to 25 cm deep and be cautious in areas where a dense slab has formed.
Many ridgecrest features have been loaded by S and SW winds with the recent storm and new cornice growth is evident. Soft slabs may become buried by incoming snow tonight and may not appear obvious.
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 snow that has slowly accumulated over the older sugary facets is starting to form a slab. Use hand tests to evaluate the bond at this interface found 20 to 25 cm deep and be cautious in areas where a dense slab has formed.
Widespread wind effect observed in the alpine formed by moderate southerly winds Jan 22. Triggerable windslab may be found along alpine and treeline lee features.
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.
A SW wind event produced touchy wind slabs in lee and cross-loaded terrain at tree line and above.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
Many ridgecrest features have been loaded by S and SW winds with the recent storm and new cornice growth is evident.
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.
Many ridgecrest features have been loaded by S and SW winds with the recent storm and new cornice growth is evident. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Buried Wind Slabs are widespread in exposed areas, and are largest in the SW of the Park. These are hidden under recent snow, and touchier new Wind Slabs. Use extra caution on lee slopes - clues include cornices up above, and a deep snowpack.
A weak layer that was buried in early January was showing signs of strengthening before Fridays' storm, but has not been ruled out as the potential failure plane of several large, recent slab avalanches. Consider avalanche consequence at all times.
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.
Previously buried windslabs will likely get overloaded quickly in any area where transport is happening in realtime. Users have to be very cautious with overhead hazards when traveling in or near avalanche terrain.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
Windslabs are likely to be triggered in leeward areas above treeline - we are on the tail end of an avalanche cycle, and human triggering is likely in many areas.
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.
Windslabs are likely to be triggered in leeward areas above treeline - we are on the tail end of an avalanche cycle, and human triggering is likely in many areas.
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.
Wind effect from the moderate-strong SW winds during the weekend has loaded up lee features in the alpine and tree-line. The sensitivity of these slabs is uncertain without many observations yesterday.
Previously buried windslabs will likely get overloaded quickly in any area where transport is happening in realtime. Users have to be very cautious with overhead hazards when traveling in or near avalanche terrain.
Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.
With the incoming wind and precipitation, we can expect touchy conditions on lee features at treeline and above. These windslabs have triggered persistent slabs and entrained facets at lower elevations recently resulting in large avalanches recently
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).
With the incoming wind and precipitation, we can expect touchy conditions on lee features at treeline and above. These windslabs have triggered persistent slabs and entrained facets at lower elevations recently resulting in large avalanches.
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.
Yesterday's snowfall with moderate SW winds has created soft slabs in the alpine and at tree-line. These hide underlying wind slabs as well. The sensitivity of these slabs is uncertain, but try to avoid lee features that have been freshly loaded.
Windslabs will continue to grow with expected storm input. Some may be reaching critical mass if this storm input arrives. Skiers should be cautious to assess overhead hazards and slope stability next few days.
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.
While stubborn to trigger, windslabs have the potential step down to previously buried weak layers.
A weak layers buried in early January and early December have not been ruled out as the potential failure plane of several large, recent slab avalanches. While the probability of triggering these layers is low, the consequences will be significant.
With the incoming wind and precipitation, we can expect touchy conditions on lee features at treeline and above. These windslabs may triggered persistent slabs resulting larger avalanches.
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).
With the incoming wind and precipitation, we can expect touchy conditions on lee features at treeline and above. These windslabs may trigger deeper persistent layers resulting in a larger avalanche.
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.
The new snow hides soft windslabs in the alpine and at tree-line. Yesterday, strong winds triggered windslab avalanches. Winds are expected to increase again today, and with lots of snow available for transport the old windslabs may be overloaded.
30 cm of storm snow has been transported by NW to SW winds.&nbsp; These slabs are sitting on a weak faceted base and/or SH.
Colder temps may reduce the potential of these slides but triggering is still possible in steep terrain.
We are in the midst of a storm cycle - new snow, strong winds and warm temperatures have created windslabs that make for poor skiing and easy triggering. Avoid avalanche terrain for the next 24-hours.
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.
We are in the midst of a storm cycle - new snow, strong winds and warm temperatures have created windslabs that make for poor skiing and easy triggering. Avoid avalanche terrain for the next 24-hours.
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.
30 cm of storm snow has been transported by NW to SW winds. These slabs are sitting on a weak faceted base and/or SH.
Triggering is very likely in steep terrain.
SW winds during the warm wet storm Thursday built soft slabs 50 to 100cm deep in lee areas and established fragile new growth on cornices. Although these slabs exist at upper elevations, avalanches have the potential to run a long distance. 
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. 
SW winds during the warm wet storm Thursday built soft slabs 50 to 100cm deep in lee areas and established fragile new growth on cornices. Although these slabs exist at upper elevations, avalanches have the potential to run a long distance.
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.
30 cm of storm snow from Thursday continues to build into a slab overlying a weak facetted snowpack or decomposed surface hoar layer. It will continue to evolve the next few days.
Triggering is very likely in steep terrain. Thursdays' new snow added to this problem in many locations.
SW winds during the warm wet storm Thursday built soft slabs 50 to 100cm deep in lee areas and established fragile new growth on cornices. Although these slabs generally exist at upper elevations, avalanches have the potential to run a long distance.
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.
SW winds during the warm wet storm Thursday built soft slabs 50 to 100cm deep in lee areas and established fragile new growth on cornices. Although these slabs generally exist at upper elevations, avalanches have the potential to run a long distance.
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.
Triggering is likely in steep terrain. Thursdays' new snow added to this problem in many locations.
Recent wind has built soft slabs 30 to 50cm deep in lee areas and established new growth on cornices. Although these slabs generally exist at upper elevations, avalanches have the potential to run a long distance.
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.
Recent wind has built soft slabs 50 to 70cm deep in lee areas and established fragile new growth on cornices. Although these slabs generally exist at upper elevations, avalanches have the potential to run a long distance.
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 recent storm slab is gaining strength. The exception is in Alpine or at treeline where mod S-SW winds may have created a soft windslab. On lee and exposed features the cohesive slab could be 60cm thick. Slides may step down to deeper weak layers.
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.
Triggering is likely in steep terrain. Thursdays' new snow added to this problem in many locations.
Recent wind has built soft slabs 30 to 50cm deep in alpine and tree line lee areas, and established new growth on cornices. Although these slabs are slowly becoming more difficult to trigger, human triggering is still possible.
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.
Buried wind slabs exist lee to previous SW winds. While stubborn, these wind slabs may propagate surprisingly far where they are hard, or sit on a hard surface. From Wednesday afternoon onwards, watch for for development of small new Wind Slabs.
Facets atop a deeply buried crust produced large avalanches in neighboring areas lately, and are giving Sudden results in tests. The strength of this layer is highly variable across terrain, so a conservative approach to wide-open terrain is crucial.
Recent wind has built soft slabs 30 to 50cm deep in alpine and treeline lee areas, and established new growth on cornices. Although these slabs are slowly becoming more difficult to trigger, human triggering is still possible.
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 recent storm slab is gaining strength. The exception is in Alpine or at treeline where mod S-SW winds may have created a soft windslab. On lee and exposed features the cohesive slab could be 60cm thick. Slides may step down to deeper weak layers.
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
35cm of storm snow from Thursday has formed a slab overlying a weak facetted snowpack or decomposed surface hoar layer.
Although this problem seems to be improving, triggering is still likely in steep terrain.
Several loose slides were observed out of steep rocky terrain, primarily on solar aspects in the alpine. These avalanches entrained mass, especially where confined by terrain such as gullies and drainages.
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.
Previous wind has built soft slabs 30 to 50cm deep in alpine and tree line lee areas. Although these slabs are slowly becoming more difficult to trigger, human triggering is still possible.
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.
The recent storm slab is gaining strength. The exception is Alpine or at treeline where moderate S-SW winds may have created a soft windslab and fresh cornices. On lee and exposed features the cohesive slab could be 60cm thick.
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.
Previous wind has built soft slabs 30 to 50cm deep in alpine and tree line lee areas. Although these slabs are slowly becoming more difficult to trigger, human triggering is still possible.
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.
New soft windslab forming on lee and cross loaded terrain. This is in addition to windslabs up to 80cm thick formed during the storm at the end of last week.
35cm of storm snow from Thursday has formed a slab overlying a weak facetted snowpack. Field teams are finding decomposed surface hoar and sudden planar test results in isolated locations at treeline. This is the key interface to assess.
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.
Previous wind has built soft slabs 30 to 50cm deep in alpine and tree line lee areas. Although these slabs are slowly becoming more difficult to trigger, human triggering is still possible.
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.
Wind slab forming on lee and cross-loaded terrain. This is in addition to wind slabs up to 80cm thick formed during the storm at the end of last week.
35cm of storm snow from last week has formed a slab overlying a weak facetted snowpack. Field teams  have found decomposed surface hoar with sudden planar test results in isolated locations at tree line. This is the key interface to assess.
Stubborn Wind Slabs exist lee to Westerly winds, and will increase in size and sensitivity by Saturday.
Facets atop a deeply buried crust produced large avalanches in recent weeks, and are giving Sudden results in tests. The strength of this layer is highly variable across terrain, so a conservative approach to big terrain is crucial.
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">
Windslabs exist in some alpine areas, although they may now be hidden by the new snow. Be curious if you are venturing into the alpine; use your pole to probe into the snow and feel for windslabs and look for clues of wind-loading like drifts.
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.
New wind slab forming on lee and cross-loaded terrain. This is in addition to wind slabs up to 80cm thick formed during the storm at the end of last week.
35cm of storm snow from last week has formed a slab overlying a weak facetted snowpack. Field teams have found decomposed surface hoar with sudden planar test results in isolated locations at tree line. This is the key interface to assess.
10-20 cm of new snow is expected by Saturday accompanied by strong West winds. This will result in rapid loading of lee slopes and a substantial increase in natural avalanche activity especially in alpine areas.
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.
10-20 cm of new snow is expected by Saturday accompanied by strong West winds. This will result in rapid loading of lee slopes and a substantial increase in natural avalanche activity especially in alpine areas.
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.
Freshly formed windslabs should be expected on alpine and treeline lee slopes. These slabs will be fragile and sensitive to human and natural triggers. 
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.
New snow and very strong winds have created&nbsp; touchy wind slabs in the alpine.
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 wind slab forming on lee and cross-loaded terrain. This is in addition to wind slabs found up to 30cm thick formed during the storm at the end of last week.
35cm of storm snow from last week has formed a slab overlying a weak facetted snowpack. Field teams have found decomposed surface hoar with sudden planar test results in isolated locations at tree line. This is the key interface to assess.
New snow and very strong winds have created touchy wind slabs in the alpine.
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.
Facets sit atop at crust buried around a meter deep. This layer generally requires large triggers, but will increase in sensitivity during periods of warm temperatures. Another persistent weak layer still exists about 50cm deep in isolated areas
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.
Extensive wind effect expected at and above treeline forming widespread wind slab over the low density snow of earlier last week.  These slabs should be suspect and reactive to human triggering.
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.
New snow and very strong wind on Saturday have created touchy wind slabs in the alpine. These slabs are still very susceptible to human triggering.
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.
New wind slab formed on lee and cross-loaded terrain. This is in addition to previous slabs found up to 30cm thick formed during the storm at the end of last week and sitting on a weak facetted interface.
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
35cm of storm snow from last week has formed a slab overlying a weak facetted snowpack. Field teams have found decomposed surface hoar with sudden planar test results in isolated locations at tree line. This is the key interface to assess.
New snow and very strong wind on Saturday have created touchy wind slabs in the alpine.
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
Extreme Westerly winds over the weekend have and built Wind Slabs in unusual areas: these may be lower than usual in start zones, and in typically wind-sheltered terrain.
Facets sit atop at crust buried up to a meter deep. This layer generally requires large triggers, but may increase in sensitivity during periods of warm temperatures.
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.
Windslabs will persist on lee aspects and crossloaded features. Triggering one has potential to initiate a deep release. May be pockets of decomposed surface hoar lurking 30-60cm down.
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.
Extensive wind effect exists in ALP and TL terrain. These slabs should be settling out with warm temperatures, but are still reactive and if triggered may step down to the deeper Jan. 6th layer.
Recent storm snow and wind deposits are settling rapidly over a layer of lower density decomposing precipitation particles. With alpine temps above zero overnight this slab could become more reactive.
With alpine temps inverted and staying above zero overnight expect to see moist surface snow in the alpine and a treeline. if the sun comes out expect loose/wet avalanches from rocky areas &amp; cliffs or South facing slopes.
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.
Thin, touchy wind slabs are likely lurking in the alpine and at tree-line elevations. These will be easier to initiate if sitting on the crust from Tuesday's warm-up.
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!
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Widespread wind slabs were observed in the alpine and at tree-line elevations yesterday. These will be easier to trigger if sitting on the crust from Tuesday's warm-up.
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.
Flurries this weekend have the potential to be redistributed into fresh windslabs in isolated pockets in the alpine and at treeline.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
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.
20cm of new snow and moderate to strong southerly winds have contributed to loading on lee features. The new snow has also concealed previously developed wind slabs that are easily triggered.
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.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
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.
These are currently thin and isolated, but will increase if we see the new snow Saturday and Sunday nights, that some forecasts predict.  The wind will blow any new snow onto lee slopes near ridge crests -use increased caution in these areas.
20cm of new snow and moderate to strong southerly winds have contributed to loading on lee features. The new snow has also concealed previously developed wind slabs that are easily triggered.
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.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
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.
Strong winds have created windslabs in alpine and treeline areas. Keep your eyes open for windslab.
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.
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 10-40 cm thick have recently formed. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
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.
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 10-40 cm thick have recently formed. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
Skiers/boarders were triggering the storm slab yesterday. With an additional 15cm overnight and strong winds, this slab now packs a little more punch.
Strong winds have created windslabs in alpine and treeline areas. Keep your eyes open for windslab.
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
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 30-60 cm thick have recently formed. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Strong winds have redistributed storm snow and wind slab can be found at all elevations. Caution on cross loaded gullies and lee aspects.
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.
Be mindful of cross loaded features and the lees of ridges where moderate to strong W winds have formed fresh windslabs 10-40 cm thick. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
At Treeline, wind slabs exist on the North and East sides of ridge crests. In open and Alpine terrain, their distribution is more random. Although the Wind Slabs feel stubborn to human triggers, be aware of a crust down 40cm that these could fail on.
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.
Consistently moderate to strong winds have created windslabs in alpine and tree-line areas.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Strong winds have redistributed storm snow and wind slab can be found at all elevations. Caution on cross loaded gullies and lee aspects.
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.
Be mindful of cross loaded features and the lees of ridges where moderate to strong W winds have recently formed windslabs 10-40 cm thick. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
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</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.
Wind slabs were formed during and after the past week's storm. They are starting to gain strength to the underlying surfaces, but are shallow enough to be triggered by skiers/boarders.
Expect poorly bonded wind slab below ridge lines and cross-loaded features on open slopes.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
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.
Be mindful of cross loaded features and the lees of ridges where moderate to strong W winds have recently formed windslabs 10-40+ cm thick. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
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
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 30-60 cm thick have recently formed. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
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.
Although the snow from the recent storms is settling and slowly bonding, tests still indicate that a layer now down 60-100cm is reactive in some areas. It is likely to take a large trigger, like a cornice or another avalanche.
Another layer of fresh windslab will be created by Friday nights storm.
While mostly stubborn to trigger, buried layers of old windslab over a couple of buried crusts have the potential for wide propagation.&nbsp; Use a probe or a pole to test for the presence of these buried layers.
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.
Be mindful of cross loaded features and the lees of ridges where moderate to strong W winds have recently formed windslabs 10-40+ cm thick. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
Windslabs appear to be bonding well, however caution is still warranted in immediate lees and cross loaded terrain above treeline.
Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
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
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 30-60 cm thick have recently formed. If triggered, there is potential to step down to the persistent weak layer.
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.
A weak layer down 60-100cm is a wild card. It could pop up anywhere but tests indicate it is more reactive on solar aspects, the same slopes that will be hit by the sun if it comes out. Strong solar could wake this layer up.
Windslabs appear to be bonding well, however caution is still warranted in immediate lees and cross loaded terrain above treeline.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar can be found in many locations. Although these layers have been dormant lately, careful slope evaluation is essential. Be cautious of shallow areas with slab over facets.
90-130 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust.&nbsp; This layer is gaining strength in the region but should be watched for at treeline and above.&nbsp;
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.
Be mindful of cross loaded features and the lees of ridges where moderate to strong W winds have recently formed windslabs 10-40+ cm thick. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
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.
Mod to strong S winds Friday night formed windslab on lee features at treeline and alpine elevations. These slabs may be sensitive to triggering and add extra load to storm slab weak layers.
The Feb 10 persistent weak layer down 60-100cm is waiting to perform. It is widespread in distribution but most likely to be reactive on solar aspects. Strong SOLAR radiation today could wake this layer up.
Windslabs appear to be bonding well, however caution is still warranted in immediate lees and cross loaded terrain above treeline.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar can be found in many locations. Although these layers have been dormant lately, careful slope evaluation is essential. Be cautious of shallow areas with slab over facets.
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.
Be mindful of cross loaded features and the lees of ridges where moderate to strong W winds have recently formed windslabs 10-40+ cm thick and developed fragile cornices.&nbsp; Failures of these have stepped down to the persistent weak layer and ground.
90-130 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. This layer is gaining strength in the region but should be watched for at treeline and above. Be aware of isolated pockets of Feb 11 SH down 40 to 60cm in the area,
Touchy windslab in the immediate lee of ridgelines and crossloaded features. formed by Friday night's strong S winds.  Sunday's skier triggered slide on Sifton col is a good example.
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. 
Wind slabs are bonding well, however caution is still warranted in immediate lees and cross loaded terrain above treeline.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar can be found in many locations. Although these layers have been stubborn to trigger underfoot but, will trigger with a heavy load, like cornice failure.
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.
Be aware of cross loaded features and the lees of ridges where recent moderate to strong W winds have formed wind slabs and developed fragile cornices. Recent wind slab avalanches have also stepped down to the persistent weak layer and the ground.
Fresh storm slabs remained touchy through the weekend. These can be managed readily with ski cutting in appropriately non-consequential terrain, but may be large enough to be destructive in bigger terrain features.
While mostly unlikely to trigger, buried layers of old windslab over a couple of buried crusts have the potential for wide propagation. Use a probe or a pole to check for the presence of these buried layers.
90-130 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. This layer is gaining strength in the region but should be watched for at treeline and above. Be aware of isolated pockets of Feb 11 SH down 40 to 60cm in the area,
Touchy windslab in the immediate lee of ridgelines and crossloaded features formed Fri from mod S winds (the skier triggered slide on Sifton col is a good example). This older wind slab is now buried under a new soft Wsl from yesterdays snow and wind
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.
Be wary of cross loaded features and the lees of ridges where recent moderate to strong W winds have formed wind slabs and developed fragile cornices. Recent wind slab avalanches have also stepped down to the persistent weak layer and the ground.
Wind slabs are bonding well, however caution is still warranted in immediate lees and cross loaded terrain above treeline.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar can be found in many locations. Although these layers have been stubborn to trigger underfoot but, will trigger with a heavy load, like cornice failure.
80-130 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. This layer is gaining strength in the region but should be watched for at treeline and above. Be aware of isolated pockets of Feb 11 SH down 40 to 60cm in the area
Touchy windslab in the immediate lee of ridgelines and crossloaded features formed Fri from mod S winds (the skier triggered slide on Sifton col is a good example). This older wind slab is now buried under a new soft Wsl from mondays snow and wind
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
Wind slabs are bonding well, however caution is still warranted in immediate lees and cross loaded terrain above treeline.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could trigger with a cornice failure or from shallow spot.
Relatively high freezing levels and the strong effects from the sun will create loose wet snow avalanches on solar aspects in the afternoon.
80-130 cm of snow overlies the Jan 6th layer of surface hoar, facets and sun crust. This layer is gaining strength in the region but should be watched for at treeline and above. Be aware of isolated pockets of Feb 11 SH down 40 to 60cm in the area.
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.
Be wary of cross loaded features and the lees of ridges where recent moderate to strong W winds have formed wind slabs and developed fragile cornices. Recent wind slab avalanches have also stepped down to the persistent weak layer and the ground.
Soft windslab can be found in immediate lee features in the alpine and at tree-line. These slabs are also present on exposed alpine features, like large convex rolls.
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
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 30-60 cm thick have recently formed. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
Wind slabs are bonding well, however caution is still warranted in immediate lees and cross loaded terrain above treeline.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could trigger with a cornice failure or from shallow spot.
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.
Friday afternoon is expected to be hot, and this means cornices will weaken and potentially fall off. Don't travel under except early in the morning, and if you must then spread out and get it over with quickly.
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</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.
We are tracking 2 weak layers in the upper 120 cm of the snowpack (Jan 6 and Feb 11 surface hoar). Their strength has improved, and they are sometimes hard to find. We consider these to be healing, but dig down and look for yourself.
Friday afternoon will possibly be hot, which will trigger cornice falls. Ensure you are not underneath cornices 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
Soft windslab can be found in immediate lee features in the alpine and at tree-line. These slabs are also present on exposed alpine features, like large convex rolls. They are becoming more stubborn to trigger.
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 new snow will becoming in warm with good transport winds from the SW.&nbsp; Excellent slab forming conditions on lee slopes.&nbsp; Bonding should be good but best to avoid steep terrain.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot.
We are tracking 2 weak layers in the upper 120 cm of the snowpack (Jan 6 and Feb 11 surface hoar). Their strength has improved, and they are sometimes hard to find. We consider these to be healing, but dig down and look for yourself.
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.
We are tracking 2 weak layers in the upper 120 cm of the snowpack (Jan 6 and Feb 11 surface hoar). Their strength has improved, and they are sometimes hard to find. We consider these to be healing, but dig down and look for yourself.
The new snow will becoming in warm with consistent transport winds from the SW. Excellent slab forming conditions on lee slopes. Bonding should be good but best to progress cautiously into steep terrain.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot.
A slab on a weak layer down 10cm will become reactive with additional snow load arriving today. Strong SW winds will encourage slab development on loaded lee features. The slab is poorly bonded to a crust on solar aspects and widespread surface hoar.
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.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be suspect, progress cautiously into steeper terrain.
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.
New snow will be blown into lees on Sunday night, as temperatures drop. New Wind Slabs will probably be stubborn. However, evaluate lee slopes with care on Monday. Cornices overhead are a sign of big lee slopes, and may fail naturally at any time.
We are tracking 2 weak layers in the upper 120 cm of the snowpack (Jan 6 and Feb 11 surface hoar). Their strength has improved, and they are sometimes hard to find. We consider these to be healing, but dig down and look for yourself.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Moderate gusting to extreme S winds blew for the last 24 hrs have created </span><span class="s_2823317B">windslabs on all aspects at TL and above</span><span class="s_AA239A9B">. This slab has the potential to run far on a supportive crust below and/or if the Feb 27 SH gets involved. </span><span class="s_2823317B">Monitor cornices closely</span><span class="s_AA239A9B">.
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</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
We are tracking 2 weak layers in the upper 120 cm of the snowpack (Jan 6 and Feb 11 surface hoar). Their strength has improved, and they are sometimes hard to find. We consider these to be healing, but dig down and look for yourself.
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.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be suspect, progress cautiously into steeper terrain.
Strong SW winds have blown recent snowfall onto lee slopes, forming Wind Slabs. Expect these to grow in size on Tuesday / Wednesday, with more snow and Strong to Extreme winds forecast.
Cornices have been growing in size. These may fail at any time, although should be given an especially wide berth when temperatures are warm, and/or snow is being transported by wind.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Yesterdays moderate, gusting to extreme S winds created </span><span class="s_2823317B">windslabs on all aspects at TL and above</span><span class="s_AA239A9B">. This slab has the potential to run far on a supportive crust below and/or if the Feb 27 SH gets involved. Cornices are ripe aswell, give them wide berth
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</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
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be suspect, progress cautiously into steeper terrain.
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.
We are tracking 2 weak layers in the upper 120 cm of the snowpack (Jan 6 and Feb 11 surface hoar). Their strength has improved, and they are sometimes hard to find. We consider these to be healing, but dig down and look for yourself.
New snow overnight with mod winds have created soft windslabs on alpine features.&nbsp; If it were to step down this slab has the potential to run far on a supportive crust or if the Feb 27 SH gets involved. Cornices are ripe aswell, give them wide berth
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
Moderate to strong SW winds continue to blow recent snowfall onto lee slopes, forming wind slabs.
Cornices have been growing in size. These can fail at any time, but should be given an especially wide berth when temperatures are warm, and/or snow is being transported by wind.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be suspect, progress cautiously into steeper terrain.
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.
Strong winds on Thursday will redistribute the recent snow and create touchy windslabs in leeward ares. Use common sense to avoid these places, and pay attention to the snow surface conditions while touring - you can usually detect windslabs easily.
We believe the persistent weak layers from January and February have a low likelihood of triggering, but are not yet prepared to say they are gone. The snowpack is strong, but check for yourself and look for surface hoar&nbsp; in the upper meter.
Strong winds on Thursday may create windslabs 30-40 cm deep in predictable areas leeward of ridges. Pay close attention to how the snow surface feels, and look for clues like cracking or ski test on small rolls.
~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.
There is lots of new snow available for the sustained S'ly winds to transport. Lee slopes will have deep wind-loaded pockets that may be easily triggered, and if they are have the potential to entrain significant mass with the reactive storm 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.
Strong winds on Thursday will redistribute the recent snow and create touchy windslabs in leeward ares. Use common sense to avoid these places, and pay attention to the snow surface conditions while touring - you can usually detect windslabs easily.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be suspect, progress cautiously into steeper terrain.
We believe the persistent weak layers from January and February have a low likelihood of triggering, but are not yet prepared to say they are gone. The snowpack is strong, but check for yourself and look for surface hoar in the upper meter.
Strong winds on Thursday may create windslabs 30-40 cm deep in predictable areas leeward of ridges. Pay close attention to how the snow surface feels, and look for clues like cracking or ski test on small rolls.
Ongoing strong southerly winds have created reactive slabs on lee features.&nbsp; Likely locations for these slabs are northerly aspects near ridge line and crossloaded ribs in valleys that channel the winds.
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.
Persistent weak layers of decomposed surface hoar, facets, and depth hoar are in many locations. These layers have been stubborn to trigger underfoot but could be triggered by cornice failure or from shallow spot and release to ground.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be suspect, progress cautiously into steeper terrain.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumphing and cracking. This weakness is slowly healing but will be present for some time.
SW winds have created small wind slabs in leeward ares near ridge crests. Use common sense to avoid these places, and pay attention to the snow surface conditions while touring - you can usually detect wind slabs easily.
Warm temperatures over the weekend combined with moderate west winds and some light precipitation could result in increased cornice failures. Minimize your exposure to cornices and the slopes below them as the day heats up.
West winds have formed small wind slabs in predictable areas on the leeward sides of ridges. Pay close attention to how the snow surface feels, ski test on small rolls, and look for clues like cracking.
The persistent weak layers from January and February are bonding well and have a low likelihood of triggering in most of the forecast area. The snowpack overall is quite strong, but check for yourself and look for surface hoar in the upper meter.
Ongoing strong southerly winds have created reactive slabs on lee features. Likely locations for these slabs are northerly aspects near ridge line and crossloaded ribs in valleys that channel the winds.
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.
<br />Expect new snowfall, warm temperatures and wind to build new storm slabs on Sunday / Sunday night. These may be large on isolated lee slopes.  They will become less sensitive to triggering later in the forecast period.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumphing and cracking. This weakness is slowly healing but will be present for some time.
SW winds have created small wind slabs in leeward ares near ridge crests. Use common sense to avoid these places, and pay attention to the snow surface conditions while touring - you can usually detect wind slabs easily.
Warm temperatures over the weekend combined with moderate west winds and some light precipitation could result in increased cornice failures. Minimize your exposure to cornices and the slopes below them as the day heats up.
West winds have formed small wind slabs in predictable areas on the leeward sides of ridges. Pay close attention to how the snow surface feels, ski test on small rolls, and look for clues like cracking.
The persistent weak layers from January and February are bonding well and have a low likelihood of triggering in most of the forecast area. The snowpack overall is quite strong, but check for yourself and look for surface hoar in the upper meter.
Persistent weak layers of some combination of decomposed surface hoar, facets, and depth hoar in many locations. These layers have been stubborn to trigger underfoot but will be triggered by cornice failure or from shallow spot and release to ground.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be suspect, progress cautiously into steeper terrain.
Strong southerly winds have formed reactive slabs on lee features. Expect to find these slabs on northerly aspects near ridgline and crossloaded features.
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 mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumphing and cracking. This weakness will be present for some time.
W winds have created small wind slabs in leeward ares near ridge crests. Use common sense to avoid these places, and pay attention to the snow surface conditions while touring - you can usually detect wind slabs easily.
Warm temperatures over the weekend combined with moderate west winds and some light precipitation could result in increased cornice failures. Minimize your exposure to cornices.
West winds have formed small wind slabs in predictable areas on the leeward sides of ridges. Pay close attention to how the snow surface feels, ski test on small rolls, and look for clues like cracking.
The persistent weak layers from January and February are bonding well and have a low likelihood of triggering in most of the forecast area. The snowpack overall is quite strong, but check for yourself and look for surface hoar in the upper meter.
This problem is very active in the Whistler/Portal Creek area with remotely triggered avalanches being reported on very low angle terrain.  The problem is also active in the Maligne area but is stubborn in the Icefields area.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be good but progress cautiously into steeper terrain.
Strong southerly winds have formed sensitive windslab on alpine and treeline lee slopes and crossloaded features.  These remain a concern for human triggering.
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.
This problem is very active in the Whistler/Portal Creek area with remotely triggered avalanches being reported on very low angle terrain. The problem is also active in the Maligne area but is stubborn in the Icefields area.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be good but progress cautiously into steeper terrain.
Loose wet avalanches can be anticipated on solar aspects in the afternoon.
West winds have formed small wind slabs in predictable areas on the leeward sides of ridges. Pay close attention to how the snow surface feels, ski test on small rolls, and look for clues like cracking.
The persistent weak layers from January and February are bonding well, and have a low likelihood of triggering in most of the forecast area. Overall the snowpack is quite strong, but continue to be wary, especially in shallow snow-pack areas.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumphing and cracking. This weakness will be present for some time.
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.
Strong southerly winds have formed sensitive windslab on alpine and treeline lee slopes and crossloaded features. These remain a concern for human triggering.
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.
This problem is very active in the Whistler/Portal Creek area with remotely triggered avalanches being reported on very low angle terrain. The problem is also active in the Maligne area but is stubborn in the Icefields area.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be good but progress cautiously into steeper terrain.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumphing and cracking. This weakness will be present for some time.
West winds have formed small wind slabs in predictable areas on the leeward sides of ridges. Pay close attention to how the snow surface feels, ski test on small rolls, and look for clues like cracking.
The persistent weak layers from January and February are bonding well, and have a low likelihood of triggering in most of the forecast area. Overall the snowpack is quite strong, but continue to be wary, especially in shallow snow-pack areas.
The Feb 27th interface is now down 60cm &amp; is producing sporadic sudden planar results on field tests. It is most active as a crust on South asps and in sheltered areas at treeline. Daytime heating and solar input will increase it's sensitivity
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumphing and cracking. This weakness will be present for some time.
West winds have formed small wind slabs in predictable areas on the leeward sides of ridges. Pay close attention to how the snow surface feels, ski test on small rolls, and look for clues like cracking.
The persistent weak layers from January and February are bonding well, and have a low likelihood of triggering in most of the forecast area. Overall the snowpack is quite strong, but continue to be wary, especially in shallow snow-pack areas.
This problem is very active in the Maligne and surrounding Jasper area with remotely triggered avalanches being reported on very low angle terrain. This problem is proving much less active in the Icefields area.
Expect slab development immediate to lee ridge lines and cross loaded features. Bonding should be good but progress cautiously into steeper terrain.
Strong wind and heavy precipitation will cause rapid storm slab development in lee areas on Thursday.
Expect rapidly developing cornice tabs to remain fragile for several days.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">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 </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Flat%20Creek%202016%2003%2009.JPG" target="_blank"><span class="s_9255B882">increase it's sensitivity.</span></a><span class="s_AA239
West winds have formed small wind slabs in predictable areas on the leeward sides of ridges. Pay close attention to how the snow surface feels, ski test on small rolls, and look for clues like cracking.
The persistent weak layers from January and February are bonding well, and have a low likelihood of triggering in most of the forecast area. Overall the snowpack is quite strong, but continue to be wary, especially in shallow snow-pack areas.
This problem is most active in the Maligne and surrounding Jasper area where the average snow pack is shallow. Remotely triggered avalanches reported on very low angle terrain. This problem is proving much less active in the Icefields area.
Expect slab development immediate to lee ridge lines and cross loaded features.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumphing and cracking. This weakness will be present for some time and is stressed with new snow load.
Recent W winds and new snow have created soft slabs in leeward ares near ridge crests. Pay attention to the snow surface conditions while touring - you can usually detect wind slabs easily and avoid these spots.
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.
Previous southerly winds created windslab on lee slopes and cross-loaded features. While these slabs are gaining strength they still remain a concern for human triggering.
The additional storm snow, accompanied by SW winds and mild temp's, has allowed cornices to grow and become fragile. Limit your exposure to these overhanging beasts along the ridge crests. A cornice triggered avalanche on Parsons Peak dug down to ice
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumphing and cracking.
Recent W winds and new snow have created soft slabs in lee areas and cross-loaded features.
This problem is most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Icefields area.
Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.&nbsp;
Strong SW winds have formed wind slabs in open areas above treeline and on the leeward sides of ridges. Cornices have also been growing quickly. Watch for changes in the surface of the snow that indicate wind slabs, and look for clues like cracking.
The persistent weak layers from January and February are bonding well, and have a low likelihood of triggering in most of the forecast area. Overall the snowpack is quite strong, but continue to be wary of shallow snow-pack areas with more facetting.
Snow showers through the weekend will continue to add to the load on the early March crust.  With this crust as a potential weak interface these storm slabs may be slow to strengthen.
Expect ongoing cornice development with warm temperatures and snowfall at the start of the weekend.  These may become brittle as temperatures cool.
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.
Wind slabs are widespread and reactive in the alpine and treeline. A skier was partially buried yesterday after triggering a wind slab on a relatively small feature. When triggered in open slopes, wind slabs may step down to deeper persistent layers.
The additional storm snow, accompanied by SW winds and mild temp's, has allowed cornices to grow and become fragile. Limit your exposure to these overhanging beasts along the ridge crests. A cornice triggered avalanche on Parsons Peak dug down to ice
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumpfing and cracking.
Recent W winds and new snow have created soft slabs in lee areas and cross-loaded features.
Recent SW winds have formed wind slabs and encouraged cornice development. Watch for changes in the surface of the snow that indicate wind slabs, and look for clues like cracking. Use conservative terrain selection where wind effect is found.
The persistent weak layers from January and February are bonding well, and have a low likelihood of triggering in most of this forecast area. Overall the snowpack is quite strong, but continue to be wary of shallow snowpack areas with more facetting.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Icefields area.
Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.
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.
Wind slabs are widespread and reactive in the alpine and treeline. A skier was partially buried on Friday after triggering a wind slab on a relatively small feature. When triggered on open slopes, wind slabs may step down to deeper persistent layers.
Additional storm snow accompanied by SW winds has allowed cornices to grow and become fragile. Limit your exposure to these overhanging beasts along the ridge crests and be mindful of overhead hazard when the intense spring sun is shining.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Icefields area.
Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumpfing and cracking.
Another 10 cm with moderate to strong W winds has contributed to windslab and cornice development. With more snow expected Sunday night expect these slabs to develop further and remain touchy for a few days.
Last night's 10 cm with intense winds has contributed to the extensive wind effect that was seen Thursday'. Consider the potential for buried windslabs with the incoming snow. Use conservative terrain selection where wind effect is found.
The persistent weak layers from January and February are bonding well, and have a low likelihood of triggering in most of this forecast area. Overall the snowpack is quite strong, but continue to be wary of shallow snowpack areas with more facetting.
New snowfall and wind loading has created thick storm slabs on many lee slopes. These have been bonding poorly to crusts below. They will slowly become less sensitive to triggering with the cold temperatures forecast.
Cornices have been growing lately. They may become touchy for a day or two, as they adjust to colder temperatures.
Windslabs are widespread and continue to be reactive to human triggering given the right terrain feature. 3 size 1.5 slides were triggered at Balu Pass yesterday.
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.
Ripe cornices have been failing over the past several days resulting in some large slides. Avoid exposure to this overhead hazard.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Columbia Icefield area.
Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumpfing and cracking.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S and W aspects, all with 50-100 cm overlying them. Dig, look and test these layers before committing to any solar slopes.
Over the past seven days we're received 45 cm of light snow, so it won't take much wind to create small pockets of drifted windslabs in areas on the leeward side of ridge crests at higher elevations.
Over the past seven days we're received 45 cm of light snow, so it won't take much wind to create small pockets of drifted windslabs in areas on the leeward side of ridge crests at higher elevations.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S and W aspects, all with 50-100 cm overlying them. Dig, look and test these layers before committing to any solar slopes.
A touchy storm slab sits on a crust in the lower alpine(below ~2500m) down to treeline. This slab is catching riders off guard and is easily triggered on convex rolls.
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.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Columbia Icefield area.
Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.
Storm slabs are variable in distribution and thickness, but currently exist on many lee slopes. Use particular caution on steeper slopes, and consider the consequences of your terrain choices.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumpfing and cracking.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them. This problem is most significant in the south Kootenay region.
30-50 cms of new snow over the last few days sits on buried wind slabs from last weeks storm.&nbsp; Although these windslabs are becoming more stubborn, if triggered they could step down to the deeper weak layers.
30-50 cms of new snow over the last few days sits on buried wind slabs from last weeks storm.  Although these windslabs are becoming more stubborn, if triggered they could step down to the deeper weak layers.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Convective flurries have created a 30cm storm slab. It is most reactive where it sits on a crust. This slab is catching riders off guard and is easily triggered on convex rolls. </span><span class="s_2823317B">When the sun comes out this afternoon this slab will be very reactive!</span><span class="s_AA239
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.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Columbia Icefield area.
Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumpfing and cracking.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them. This problem is most significant in the south Kootenay region.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them.
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</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.
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</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
The mid-pack facets remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumpfing and cracking.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them. This problem is most significant in the south Kootenay region.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them.
This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Columbia Icefield area.
Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.
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.
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</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.
Avalanches on buried suncrusts with facets have been seen on solar aspects within the last few days. Presently there are several crusts buried on S through E aspects, with 40-100 cm overlying them.
Deeper facet layers remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain, and watch for signs of instability such as whumpfing and cracking.
This problem may still be a concern in the Whistler/Portal Creek area. It appears to be inactive in the Maligne and Icefields areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.
Expect loose wet avalanches on solar aspects as the day heats up. These may trigger persistent slabs where buried crusts exist.
Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 50-100 cm overlying them. We do not have many observations of this currently.
The potential to trigger fast moving sluffs will persist on shaded aspects for a day or two.
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.
This problem may still be a concern in the Whistler/Portal Creek area. It appears to be inactive in the Maligne and Icefields areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Avalanches on buried crusts with facets have been seen on solar aspects within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Deeper facet layers remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain and be very conservative with large terrain features. A great deal of variability exists. Dig a lot of holes and use your probe to get information
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.
Now that the sun is higher in the sky, buried crusts becomes more of a problem. Presently there are several crusts buried on S through E and W aspects, with 50-100 cm overlying them. We do not have many observations of this currently.
Buried crusts and associated weak layers have created persistent instabilities on solar aspects.  Recent storm snow sits on top of crusts 30-50cm down.  Feb 27 interface down 80-120cm still producing sudden planar results.  Take the time to evaluate.
Avalanches on buried crusts with facets have been seen on solar aspects within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Deep facet layers remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain and be very conservative with large terrain features. A great deal of variability exists.
This problem may still be a concern in the Whistler/Portal Creek area. It appears to be inactive in the Maligne and Icefields areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Now that the sun is higher in the sky, buried crusts becomes more of a problem. Presently there are several crusts buried on S through E and W aspects, with 50-100 cm overlying them. We do not have many observations of this currently.
Buried crusts and associated weak layers have created persistent instabilities on solar aspects. Recent storm snow sits on top of crusts 30-50cm down. Feb 27 interface down 80-120cm still producing sudden planar results. Take the time to evaluate.
This problem is still a concern in the Whistler/Portal Creek area. This, along with most recent rain means this area will be in very poor shape for travel.&nbsp;
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.
Avalanches on buried crusts with facets have been seen on solar aspects within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Deep facet layers remain weak, especially in thin or rocky areas. Avoid steep or unsupported terrain and be very conservative with large terrain features. A great deal of variability exists.
Large cornices on lee aspects are very fragile. Pay attention to what is above you.
Several buried suncrusts exist in the upper pack on on S through E and W aspects. Pay attention to these crusts as they may be potential sliding layers.
Buried crusts and associated weak layers have created persistent instabilities on solar aspects. Recent storm snow sits on top of crusts 30-50cm down. Feb 27 interface down 80-120cm still producing sudden planar results. Take the time to evaluate.
This problem is still a concern in the Whistler/Portal Creek area. This, along with most recent rain means this area will be in very poor shape for travel.
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.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
Avalanches on buried crusts with facets have been seen on sun exposed slopes within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Spring is cornice season - meaning that they are large, and warm temperatures make them weak. Ensure you give them a wide berth on ridge crests, as they can pull back a long way when they fail. If you need to travel under cornices - move quickly.
Several buried suncrusts exist in the upper pack on on S through E and W aspects. Dig down to look for and test these crusts before committing to any big slopes - we were surprised by a buried suncrust just last week.
Buried crusts have created persistent instabilities on solar aspects. Recent storm snow sits on top of crusts 30-50cm down. The crust of most concern is the Feb 27 interface down 70-120cm, which is still producing sudden planar results.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
Avalanches on buried crusts with facets have been seen on sun exposed slopes within the last few days. Presently there are several crusts buried with 40-100 cm overlying them.
Cornices are large, and warm temperatures make them weak. Ensure you give them a wide berth on ridge crests, as they can pull back a long way when they fail and may trigger avalanches below.&nbsp; If you need to travel under cornices - move quickly.
Several buried suncrusts exist in the upper pack on on S through E and W aspects. Dig down to look for and test these crusts before committing to any big slopes - we were surprised by a buried suncrust just last week.
This problem is still most concerning and most active in the Whistler/Portal Creek area.
The overnight snow has formed a storm slab at ridge-top and cross-loaded lee features. These pockets will likely be easy to &quot;pop&quot; out by the weight of a person.
Buried crusts have created persistent instabilities on solar aspects. The crust of most concern is the Feb 27 interface down 70-120cm, which is still producing sudden planar results.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
Several buried suncrusts exist in the upper pack on S, E and W aspects although we have not had a chance to look for them for over one week. Dig down to look for these yourself, as we were surprised by a buried suncrust just last week.
This problem has been most active in the Whistler/Portal Creek area but is widespread through the forecast region and when triggered, always goes big.
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.
Daily doses of 10-15cm is building a deep storm slab. Combined with sustained SW winds, slabs will be deeper on lee and cross-loaded features. Yesterday storm slabs were easy to trigger on convexities and wind loaded features. Expect the same today.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
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 has been most active in the Whistler/Portal Creek area but is widespread through the forecast region. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger.
This problem is subject to intense periods of solar radiation. In shallow snowpack spots and sunny conditions, the danger rating will rapidly increase.
With winds tapering toward the end of Friday's storm windloaded pockets may be difficult to detect.
Windslabs will likely begin to develop with Sundays wind.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
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.
Several buried suncrusts exist in the upper pack on S, E and W aspects although we have not had a chance to look for them for over one week. Dig down to look for these yourself, as we were surprised by a buried suncrust just last week.
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.
A touchy storm slab exists, with 30-50cm over a crust. On lee and cross-loaded features it's up to 1m deep. Yesterday skiers easily to triggered several size 2's and one size 3. They occurred in predictable places; steep slopes with a convexity.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
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 has been most active in the Whistler/Portal Creek area but is widespread through the forecast region. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger.
This problem is subject to intense periods of solar radiation. In shallow snowpack spots and sunny conditions, the danger rating will rapidly increase.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
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.
Several buried suncrusts exist in the upper pack on S, E and W aspects although we have not had a chance to look for them for over one week. Dig down to look for these yourself, as we were surprised by a buried suncrust just last week.
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;
A touchy storm slab exists, with 30-50cm over a crust. On lee and cross-loaded features it's up to 1m deep. On Friday skiers easily triggered several size 2's and one size 3. They occurred in predictable places; steep slopes with a convexity.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
This problem has been most active in the Whistler/Portal Creek area but is widespread through the forecast region. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger.
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
Several buried suncrusts exist in the upper pack on S, E and W aspects although we have not had a chance to look for them for over one week. Dig down to look for these yourself, as we were surprised by a buried suncrust just last week.
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.
A touchy storm slab exists, with 30-50cm over a crust. On lee and cross-loaded features it's up to 1m deep. On Friday skiers easily triggered several size 2's and one size 3. They occurred in predictable places; steep slopes with a convexity.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
This problem has been most active in the Whistler/Portal Creek area but is widespread through the forecast region. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger.
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
Several buried suncrusts exist in the upper pack on S, E and W aspects. These crust are variable by nature and are likely responsible for the slab activity in the area. Heating may make these slabs more sensitive later this week.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
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.
A series of crusts on solar aspects, buried up to 1.2 m deep, remain a concern. Tests generally take a hard force but continue to produce sudden planar results. This suggests that smaller avalanches, or cornice failures, may trigger large avalanches.
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.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
Daytime heating is expected to be intense for the next few days. Get an early start and be done your day early.
This problem is becoming more active. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger. Steep sun facing rocks, cornice failures, and loose avalanches from above are waking up this problem.
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
Several buried suncrusts exist in the upper pack on S, E and W aspects. These crust are variable by nature and are likely responsible for the slab activity in the area. Heating may make these slabs more sensitive later this week.
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.
Intense solar and warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
This problem is widespread, and expect slush style avalanches to be running in gullies, from cliffs and on steep slopes facing the sun.
Cornices are large. Give them a wide berth on ridge crests, as they can pull back a long way when they fail and may trigger avalanches below. If you need to travel under cornices, move quickly and think twice if there is significant heating.
Wet snow avalanches will be running in most steep gully features, near cliff bands and on steep slopes.
Several buried suncrusts exist in the upper snowpack, and slab avalanches can be expected on these crusts as the heat penetrates the snowpack over the next few days.
Cornices are large. Give them a wide berth on ridge crests, as they can pull back a long way when they fail and may trigger an avalanche below. If you need to travel under cornices, move quickly but think twice if there is significant heating.
This problem is becoming more active. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger. Steep sun facing rocks, cornice failures, and loose avalanches from above are waking up this problem.
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
Intense solar and warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Deep facet layers remain very weak, especially in thin or rocky areas. Avoid large open slopes, steep slopes (&gt;30 degrees) and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
This problem is widespread, and expect slush style avalanches to be running in gullies, from cliffs and on steep slopes facing the sun.
Cornices are large. Give them a wide berth on ridge crests, as they can pull back a long way when they fail and may trigger avalanches below. If you need to travel under cornices, move quickly and think twice if there is significant heating.
Wet snow avalanches will be running in most steep gully features, near cliff bands and on steep slopes.
Several buried suncrusts exist in the upper snowpack, and slab avalanches can be expected on these crusts as the heat penetrates the snowpack over the next few days.
Cornices are large. Give them a wide berth on ridge crests, as they can pull back a long way when they fail and may trigger an avalanche below. If you need to travel under cornices, move quickly but think twice if there is significant heating.
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.
Wet slabs may occur in isolated areas. These are more likely on slopes catching lots of sun, but may release several hours after the peak warming or solar input.
This problem is becoming more active. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger. Steep sun facing rocks, cornice failures, and loose avalanches from above are on going.
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
Intense solar and warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
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.
The snow pack remains warm after the past couple of days. There are several buried suncrusts exist in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down with any prolonged heating from the sun.
Cornices are large. Give them a wide berth on ridge crests, as they can pull back a long way when they fail and may trigger an avalanche below. If you need to travel under cornices, move quickly but think twice if there is significant heating.
Deep facet layers remain very weak &amp; stressed by the recent heat. Give it some time - continue to avoid large open slopes, steep slopes and be wary that you can trigger this problem from a long distance away - the slab is stiff and it propagates far.
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.
Cornices are large. Give them a wide berth on ridge crests, as they can pull back a long way when they fail and may trigger avalanches below. If you need to travel under cornices, move quickly and think twice if there is significant heating.
This problem is becoming more active. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger. Steep sun facing rocks, cornice failures, and loose avalanches from above are on going.
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.
Warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Deep facet layers remain weak &amp; stressed by the recent heat and will take a bit of time to adjust.  This layer will be harder to trigger due to the recent activity, but be cautious in thin snowpack areas.
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 snow pack remains warm after the past couple of days. There are several buried suncrusts exist in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down with any prolonged heating from the sun.
Cornices are large. Give them a wide berth on ridge crests, as they can pull back a long way when they fail and may trigger an avalanche below. If you need to travel under cornices, move quickly but think twice if there is significant heating.
This problem is active. When triggered, it will be big with serious consequences. Warm and sunny conditions will increase this danger. Steep sun facing rocks, cornice failures, and loose avalanches from above are on going.
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.
Warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Deep facet layers remain weak &amp; stressed by the recent heat and will take a bit of time to adjust. This layer will be harder to trigger due to the recent activity, but be cautious in thin snowpack areas.
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.
The snow pack remains warm after the past couple of days. There are several buried sun crusts in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down with any prolonged heating from the sun.
Sensitivity of these storms slabs will vary depending on the underlying bed surface.  Be especially cautious in areas where the new snow overlies a crust.
Watch for moist or wet surface snow - this means avalanche activity is more likely.
Warm overnight temps and forecasted light rain will increase the danger of this problem on Monday.  Shallow areas are likely trigger spots. Cornice falls could also act as a trigger. Consequences would be severe.
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;
Warm temps could wake up deeply buried weak layers. Recent tests on these crusts indicate that they will likely take a heavy trigger like a cornice fall or another avalanche, but if triggered very large avalanches are possible.
Cooling temperatures will reduce the likelihood of triggering this problem. Shallow areas are likely trigger spots.
Deep facet layers remain weak especially in thin snowpack areas. This layer will be harder to trigger as temperatures cool and but be cautious in large steep terrain especially when temperatures increase during the later part of the day.
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.
This is becoming less of an issue with the cooler temperatures, but several buried sun crusts exist in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down during any prolonged heating from the sun.
Storms slabs will have formed overnight with the new snow and winds. Given the warm temp's, they will be stubborn to trigger, but be looking for them as you head onto the lee side of ridges.
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.
Step-down avalanche potential exists with the many crusts buried in the upper metre. Tests on these crusts indicate that it will likely take a heavy load to trigger them, like a cornice fall or another avalanche. Expect large avalanches if they move!
Cooling temperatures will reduce the likelihood of triggering this problem. Shallow areas are likely trigger spots.
Strong southerly winds continue to redistribute the new snow into lee features, especially in the high alpine where temp's are a little cooler. At higher elevations, these slabs will be touchier than lower down.
Step-down avalanche potential exists with the many crusts buried in the upper metre, especially on solar aspects. It will take a heavy load to trigger them, like a cornice fall or another avalanche. Expect large avalanches if they move!
Deep facet layers remain weak especially in thin snowpack areas. On Thursday be cautious in large steep terrain especially when temperatures increase during the later part of the day as skies clear&nbsp; and temperatures rise.&nbsp;
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!
There are several buried sun crusts exist in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down during any prolonged heating from the sun.
Rising temperatures will increase the likelihood of triggering this problem. Shallow areas are likely trigger spots.
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.
A ~30cm deep storm slab has developed and sits on a crust. Sustained winds will have built deeper pockets on lee slopes and in cross-loaded areas. These are likely to exist in areas where skiers/boarders are searching for skiable snow.
Huge cornices along ridges will be weakened by the strong sun today and continued above freezing temps. A chunk of cornice tumbling down-slope is a concern in itself, but cornices failures also provide a heavy trigger and may trigger large avalanches
Deep facet layers remain weak especially in thin snowpack areas. Hot and sunny conditions on Friday preclude afternoon travel in steep areas.
In the afternoon any steep slopes should be avoided when the crust on top of the snowpack melts. Start early and finish early!
The forecasted hot sunny weather on Friday will be a trigger for this problem on all aspects and elevations.
The freezing level is rising to 3500 m tomorrow.  We are expecting to see loose wet avalanches on most slopes.
There are several buried sun crusts exist in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down during any prolonged heating from the sun.
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.
A ~30cm deep storm slab has developed and sits on a crust. Sustained winds will have built deeper pockets on lee slopes and in cross-loaded areas. These are likely to exist in areas where skiers/boarders are searching for skiable snow.
Huge cornices along ridges will be weakened by the strong sun today and continued above freezing temps. A chunk of cornice tumbling down-slope is a concern in itself, but cornices failures also provide a heavy trigger and may trigger large avalanches
Cool temperatures over the weekend will reduce this problem but caution advised on slopes if hot sunny conditions are experienced.
Deep facet layers remain weak especially in thin snowpack areas.
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.
There are several buried sun crusts exist in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down during any prolonged heating from the sun.
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.
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.
Huge cornices along ridges will be weakened by the strong sun today and continued above freezing temps. A chunk of cornice tumbling down-slope is a concern in itself, but cornices failures also provide a heavy trigger and may trigger large avalanches
Deep facet layers remain weak especially in thin snowpack areas.
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.
There are several buried sun crusts exist in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down during any prolonged heating from the sun.
Assume this will continue to linger for the time being.
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.
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.
Huge cornices along ridges will be weakened by the strong sun today and continued above freezing temps. A chunk of cornice tumbling down-slope is a concern in itself, but cornices failures also provide a heavy trigger and may trigger large avalanches
Will be an issue for the rest of the season, most typically on solar aspects.
Assume this will continue to linger for the time being.
Deep facet layers remain weak especially in thin snowpack areas and may be triggered during the hotter parts of the day.
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!
There are several buried sun crusts exist in the upper snowpack and it remains possible to trigger these layers once the surface crusts break down during any prolonged heating from the sun.
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.
Keep these in mind during daytime warming, particularly on Tuesday.
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!
Deep facet layers remain weak especially in thin snowpack areas and may be triggered during the hotter parts of the day.
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.
Deep facet layers remain weak especially in thin snowpack areas and may be triggered during the hotter parts of the day.
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.
Deep facet layers remain weak especially in thin snowpack areas and may be triggered during the hotter parts of the day.
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.
Deep facet layers remain weak especially in thin snowpack areas and may be triggered during the hotter parts of the day.
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.
These will be largest and most widely distributed in the Alpine. in the alpine, and will be especially sensitive when they first receive sun (Friday or Saturday).
Cornices are likely to start failing naturally again with high temperatures through the weekend. Make an extra effort to avoid any overhead exposure to cornices on Sunday.
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
Deep facet layers remain weak especially in thin snowpack areas and may be triggered during the hotter parts of the day. Sunday expect these slabs to become active especially on high North aspects that have yet to be heated to the forecast temps.
Watch for cornices to become active Sunday through Monday as the freezing levels reach their highest point yet this spring.
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
Watch for cornices to become active Sunday through Monday as the freezing levels reach their highest point yet this spring.
At ridgecrests and on lee features, pockets of windslab are hidden by 10-20cm of powder. These wind slabs may be triggered by skiers and snowboarders.
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.
The concern is mainly for steep, shallow terrain where faceting is likely above the crust.&nbsp;
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!
Pockets of windslab at ridgecrests and on lee features are buried under low density snow and may be hard to identify.
Open lee features have new and possibly very reactive windslabs. Avoid traveling through these features.
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.
Open lee slopes featuring new and possibly very reactive wind-slabs. Best to avoid traveling through these features.
Fresh windslab has formed with reports of cracking, whumphing and remote triggering possible in surface layers at and above treeline. Human triggering is occurring. Loose dry sluffing will also be an issue to contend with.
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.
This condition would be found mainly on open lee slopes or cross-loaded gullies. Avoid traveling through or underneath these features.
Hard to get a solid handle on this problem, but with 30 cm of new snow and a lot of NE wind today, wind slabs should be expected. Reverse loading creates challenges as things can be backwards, so make careful observations of how the snow is loaded.
30 cm of light, dry snow will be sluffing and creating much unpleasant spindrift for ice climbers.
Hard to get a solid handle on this problem, but with 30 cm of new snow and a lot of NE wind today, wind slabs should be expected. Reverse loading creates challenges as things can be backwards, so make careful observations of how the snow is loaded.
30 cm of light, dry snow will be sluffing and creating much unpleasant spindrift for ice climbers.
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.
This condition would be found mainly on open lee slopes or cross-loaded gullies. Avoid traveling through or underneath these features.
Surprisingly very little wind slab formation in the Lake Louise back country today. Areas to watch for are the immediate lee near ridge top.
30 cm of light, dry snow will be sluffing and creating much unpleasant spindrift for ice climbers. This problem will become less of a concern as the storm snow settles and the cold temperatures set in.
Surprisingly very little wind slab formation in the Lake Louise back country today. Areas to watch for are the immediate lee near ridge top.
30 cm of light, dry snow will be sluffing and creating much unpleasant spindrift for ice climbers. This problem will become less of a concern as the storm snow settles and the cold temperatures set in.
Human triggered avalanches are likely in the new storm slab, which also sit on previous wind slabs. Combined, these two slabs could step down to the Nov 13 Crust, triggering a persistent slab.&nbsp; </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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 condition would be found mainly on open lee slopes or cross-loaded gullies. At lower elevations use caution on classic trouble spots like moraine features, and larger open slopes with convexities.&nbsp;
Found mainly on open lee slopes and cross-loaded gullies. At lower elevations use caution on classic trouble spots like moraine features and larger open slopes with convexities.
Cold temps promoting facetting of upper snow pack. Expect loose dry avalanches from steep terrain.
Buried windslabs may still be triggerable. Expect fresh windslab development as winds increase Friday into Saturday.
Dominant issue in the snowpack is the November 12 crust (down 30-70 cm). This crust is evident throughout the region and has started to become reactive on south aspects in the Lake Louise area.
Dominant issue in the snowpack is the November 12 crust (down 30-70 cm). This crust is evident throughout the region and has started to become reactive on south aspects in the Lake Louise area.
Cold temps promoting facetting of upper snow pack. Expect loose dry avalanches from steep terrain.
Found mainly on open lee slopes and cross-loaded gullies. At lower elevations use caution on classic trouble spots like moraine features and larger open slopes with convexities.
The dominant issue in the snowpack is the November 12 crust (down 30-70 cm). This crust is evident throughout the region and has started to become reactive on south aspects.
The dominant issue in the snowpack is the November 12 crust (down 30-70 cm). This crust is evident throughout the region and has started to become reactive on south aspects.
Variable gusting winds have created hard wind slabs at ridge top, in exposed areas, and on all aspects. Expect cornices and cross-loaded features lower on slopes to be reactive. Stay observant and approach wind loaded areas carefully.
Cold temps promoting facetting of upper snow pack. Expect loose dry avalanches from steep terrain.
Found mainly on open lee slopes and cross-loaded gullies. At lower elevations use caution on classic trouble spots like moraine features and larger open slopes with convexities.
Moderate to strong winds have created hard windslabs in exposed areas at and above treeline, and on all aspects. Cornices, unsupported features and steep cross-loaded terrain should be avoided. Evaluate wind loaded terrain before committing to it.
Cold temps promoting facetting of upper snow pack. Expect loose dry avalanches from steep terrain.
The Nov crust is down 40-90cm and is beginning to facet out, and loose strength and cohesion. There has been recent activity on this layer and requires respect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
As the surface snow rots with the cold temperatures, natural and human triggered sluffs are becoming more likely and have the ability to run quite far in steep terrain. Climbers and skiers in confined features such as gullies should beware.
As the surface snow rots with the cold temperatures, natural and human triggered sluffs are becoming more likely and have the ability to run quite far in steep terrain. Climbers and skiers in confined features such as gullies should beware.
This problem began developing on Saturday afternoon, and will increase during Sunday with forecast strong winds.  There is plenty of low-density snow available for transport.
This will mainly be a problem on Sunday as wind moves low-density snow around.
Widespread wind slabs formed last week during the transition to arctic air.  The bond of these slabs continues to improve with field tests giving resistant results.  Steeper cross loaded and unsupported terrain features should be avoided.&nbsp;
Cold temps promoting facetting of upper snow pack. Expect loose dry avalanches from steep terrain.
The Nov crust is down 40-90cm and is beginning to facet out, and lose strength and cohesion. There has been recent activity on this layer and requires respect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
As the surface snow rots with the cold temperatures, natural and human triggered sluffs are becoming more likely and have the ability to run quite far in steep terrain. Climbers and skiers in confined features such as gullies should be wary of this.
As the surface snow rots with the cold temperatures, natural and human triggered sluffs are becoming more likely and have the ability to run quite far in steep terrain. Climbers and skiers in confined features such as gullies should be wary of this.
Thin, fresh, soft windslab resides on top of hard slab formed when arctic air moved in. Depending on location the hard slab may be just at ridge top or extend further down slope.
The surface snow is faceting rapidly and becoming weak, resulting in large sluffs developing in steep and/or confined terrain. Be very wary of your exposure above and below, and remember to ski off fall line to manage any sluffs growing behind you.
The surface snow is faceting rapidly and becoming weak, resulting in large sluffs developing in steep and/or confined terrain. Be very wary of your exposure above and below, and remember to ski off fall line to manage any sluffs growing behind you.
Cold temps promoting facetting of upper snow pack. Expect loose dry avalanches from steep terrain.
The Nov crust is down 40-90cm and is beginning to facet out, lose strength and cohesion. There has been recent activity on this layer and requires respect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Pay attention for stiffer feeling snow beneath your skis near changes in the terrain.  During Thursdays weather event, expect to see this problem switch to South &amp; West facing slopes, and to increase rapidly in size.
Thin, stubborn windslabs on the surface hide the hard windslabs formed by the cold Arctic air moving in. The hard slabs are prevalent near ridge tops or further downslope in valleys that acted as a wind funnel for the cold air flow.
The surface snow is faceting rapidly and becoming weak, resulting in sluffs developing in steep and/or confined terrain. Be wary of your exposure above and below, and remember to ski off fall line to manage sluffs lurking behind you.
The surface snow is faceting rapidly and becoming weak, resulting in large sluffs developing in steep and/or confined terrain. Be very wary of your exposure above and below, and remember to ski off fall line to manage any sluffs growing behind you.
Cold temps promoting facetting of upper snow pack. Expect loose dry avalanches from steep terrain.
The Nov crust is down 40-90cm and is beginning to facet out, lose strength and cohesion. There has been recent activity on this layer and requires respect.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Hard wind slabs are prevalent near ridge-crests or in alpine cross-loaded features. The biggest concern with these hard slabs would be cutting a small pocket and riding it over steep, unforgiving terrain.
Cold temps promoting facetting of upper snow pack causing it to loose internal cohesion. Expect loose dry avalanches from steep terrain.
The Nov crust is down 40-90cm and is beginning to facet out, lose strength and cohesion. There has been recent activity on this layer and requires respect. Consequences would be severe if triggered.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The surface snow is faceting rapidly and becoming weak, resulting in sluffs developing in steep and/or confined terrain. Ice climbers should be prepared for sluffing and spindrift and be wary of their exposure from above and below.
This problem has been unreactive now for 5 days, and we are unsure if it even exists in alpine areas in Little Yoho, although it has been detected up to treeline on Mt. Field.
The surface snow is faceting rapidly and becoming weak, resulting in sluffs developing in steep and/or confined terrain. Be very wary of your exposure above and below, and remember to ski off fall line to manage any sluffs growing behind you.
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.
Hard wind slabs are prevalent near ridge-crests or in alpine cross-loaded features. The biggest concern with these hard slabs would be cutting a small pocket and riding it over steep, unforgiving terrain.
Cold temps have weakened the snow clinging to steep terrain, and as a result shedding and sluffing should be expected.
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
The surface snow is facetted and weak, resulting in large sluffs in steep terrain. Sluffs are picking up mass and running fairly far. Pay attention to terrain traps where snow can accumulate into deeper deposits.
The surface snow is facetted and weak, resulting in large sluffs in steep terrain. Sluffs are picking up mass and running fairly far. Pay attention to terrain traps where snow can accumulate into deeper deposits.
Fresh wind slabs are prevalent near ridge-crests or in alpine cross-loaded features and reactive where unsupported.&nbsp; The biggest concern with these would be cutting a small pocket and riding it over steep, unforgiving terrain.
Cold temps have weakened the snow clinging to steep terrain, and as a result shedding and sluffing should be expected.
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
The surface snow is facetted and weak, resulting in large sluffs in steep terrain. Sluffs are picking up mass and running fairly far. Pay attention to terrain traps where snow can accumulate into deeper deposits.
Fresh wind slabs are prevalent near ridge-crests or in alpine cross-loaded features and reactive where unsupported. The biggest concern with these would be cutting a small pocket and riding it over steep, unforgiving terrain.
Cold temps have weakened the snow clinging to steep terrain, and as a result shedding and sluffing should be expected.
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
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.
Freshly formed windslabs brought on by moderate S'ly winds and light snowfall should be watched for in the immediate lee of ridges and alpine terrain features.  These slabs will hide hard slabs formed during the arctic high pressure.
Snow clinging to the mountain sides continues to shed from the steep terrain and sluffing and entrainment should be expected.
It's windy. So, expect to find windslab developing in the immediate Lee of slopes and ridge tops.
Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.
Strong winds have added to the wind slab problem. By now the alpine snowpack is highly variable ranging from impenetrable hard slab to loose faceted snow. Probe often to determine the extent of the wind slabs and avoid them in steep terrain.
Strong winds have added to the wind slab problem. By now the alpine snowpack is highly variable ranging from impenetrable hard slab to loose faceted snow. Probe often to determine the extent of the wind slabs and avoid them in steep terrain.
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.
The depth of this crust is now highly variable, and may as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential with this new loading pattern.
Although there has been extensive scouring, the weak facets will likely continue to shed from steep rocky terrain.
New snow and strong winds have created a reactive wind slab on exposed slopes in the alpine and tree line. This new slab sits over a very faceted snowpack creating a weak interface. Natural and skier trigger avalanches to size 2 were reported today.
New snow and strong winds have created a reactive wind slab on exposed slopes in the alpine and tree line. This new slab sits over a very faceted snowpack creating a weak interface. Natural and skier trigger avalanches to size 2 were reported today.
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.
The depth of this crust is now highly variable, and may as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential with this new loading pattern.
Although there has been extensive scouring, the weak facets will likely continue to shed from steep rocky terrain.
New snow and strong winds have created a windslab on exposed slopes in the alpine and tree line that could be easilly skier triggered. This new slab sits over a very faceted snowpack creating a weak interface.
New snow and strong winds have created a windslab on exposed slopes in the alpine and tree line that could be easily skier triggered. This new slab sits over a very faceted snowpack creating a weak interface.
~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.
With ~80cm of light new snow available for transport, sustained SW winds will have loaded lee slopes.  In windloaded areas, deeper slabs are expected to bond poorly to the facetted snow beneath it. Avoid slopes that have been loaded by wind.
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.
The depth of this crust is now highly variable, and may as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential with this new loading pattern.
New snow and strong winds have created a windslab on exposed slopes in the alpine and tree line that could be easilly skier triggered. This new slab sits over a very faceted snowpack creating a weak interface.
New snow and strong winds have created a windslab on exposed slopes in the alpine and tree line that could be easily skier triggered. This new slab sits over a very faceted snowpack creating a weak interface.
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.
Lots of light new snow and sustained SW winds will have loaded lee slopes forming stiffer slabs. Wind slabs are poorly bonded to facetted snow below. A field team confirmed that these slabs were touchy around ridges and in areas of cornice growth.
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.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential with this new loading pattern.
New snow and strong winds have created a wind-slab on exposed slopes in the alpine and tree line that could be easily skier triggered. This new slab sits over a very faceted snowpack creating a weak interface.
New snow and strong winds have created a wind-slab on exposed slopes in the alpine and tree line that could be easily skier triggered. This new slab sits over a very faceted snowpack creating a weak interface.
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.
Strong SW winds during the last storm loaded lee slops and formed stiffer slabs. Wind slabs are poorly bonded to facetted snow below. A field team confirmed that these slabs were touchy around ridges and in areas of cornice growth.
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.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
New snow and strong winds have created  wind-slabs on exposed slopes that can be easily triggered. These slabs sit over a very faceted snowpack creating a weak interface that will last for some time. 
New snow and strong winds have created slabs on in many areas above tree line that can be easily triggered. These slabs sit over a weaker faceted layer creating a weak interface that will last for some time.
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.
Moderate to strong SW winds during this past week's storm formed soft slabs on lee features.  Field tests Thursday confirmed the slabs were reactive to skier loads around ridges.  These slabs may be hidden by Friday's snowfall.
New snow and strong winds have created wind-slabs on exposed slopes that can be easily triggered. These slabs sit over a very faceted snowpack creating a weak interface that will last for some time.
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
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 evaluated carefully.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
New snow and strong winds have created wind-slabs on exposed slopes that can be easily triggered. These slabs sit over a very faceted snowpack creating a weak interface that will last for some time.
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.
Strong SW wind during last week's storm formed windslab in the immediate lee of ridges and cross loaded features. Field tests Thursday confirmed the slabs could be reactive to skier loads around ridges.These slabs may be hidden by Friday's snowfall.
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.
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 evaluated carefully.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
New snow and strong winds have created wind-slabs on exposed slopes that can be easily triggered. These slabs sit over a very faceted snowpack creating a weak interface that will last for some time.
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 and strong winds have created wind-slabs on exposed slopes that can be easily triggered. These slabs sit over a very faceted snowpack creating a weak interface that will last for some time.
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">
Previous strong winds have created a mosaic of snow depths across the landscape. These slabs will vary greatly in their sensitivity to triggering and requiring each slope to be evaluated carefully.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
Up to 30cm of recent new snow from last week sits on top of a layer of facets (Dec 19 layer). The interface between the new and old snow is poorly bonded, resulting in many recent avalanches.
Up to 30cm of recent new snow from last week sits on top of a layer of facets (Dec 19 layer). The interface between the new and old snow is poorly bonded, resulting in many recent avalanches.
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">
Plenty of unconsolidated powder lies on the snow surface. On steeper terrain, it has been observed to be moving fast and could push a person over a cliff.
Strong winds have created a mosaic of snow depths across the landscape. These slabs will vary greatly in their sensitivity to triggering and requiring each slope to be evaluated carefully.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
Wind slabs up to 60cm+ from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. Some fresh snow overnight and strong winds are adding to this problem.
Wind slabs up to 60cm+ from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. Some fresh snow overnight and strong winds are adding to this problem.
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.
Up to 30cm of snow fell in the last 24hrs at treeline. Combined with SW winds, expect deep loaded pockets to exist on lee slopes. This new slab has buried a surface hoar layer that was spotty in its distribution and may catch people by surprise.
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.
Strong winds have created a mosaic of snow depths across the landscape. These slabs will vary greatly in their sensitivity to triggering and requiring each slope to be evaluated carefully.
The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.
Wind slabs up to 60cm from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
Wind slabs up to 60cm from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
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.
Windslabs will vary in sensitivity to triggering.  Evaluate each slope carefully.
Recent large avalanches have been reported on this layer as snow load increases.
Wind slabs up to 60cm from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
Thick wind slabs have formed in the lees of alpine features. These will be touchy in the short term with the current snow and wind forecast. Once initiated, they may trigger a persistent slab on the Dec.19th facets.
ICE CLIMBERS - watch out for large sluff in gullied routes as there is a lot of loose snow being blow around by the wind.
Wind slabs up to 60cm from last week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
Thick wind slabs have formed in the lees of alpine features. These will be touchy in the short term with the current snow and wind forecast. Once initiated, they may trigger a persistent slab on the Dec.19th facets.
ICE CLIMBERS - watch out for large sluff in gullied routes as there is a lot of loose snow being blow around by the wind.
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.
60cm of new snow from the past week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
Thick wind slabs have formed in the lees of alpine features. These will be touchy in the short term with the current snow and wind forecast. Once initiated, they may trigger a persistent slab on the Dec.19th facets.
60cm of new snow from this past week sit on top of a weak layer of facets (Dec 19 layer). This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
Thick wind slabs have formed in the lees of alpine features. These will be touchy in the short term with the current snow and wind forecast. Once initiated, they may trigger a persistent slab on the Dec.19th facets.
Hard slab conditions make triggering less likely.
This layer will weaken with the predicted cold weather.
These will be found on North and East aspects on Saturday, with lots of recent snow available as fetch. The main problem will move to immediate lees on South and West aspects on Sunday and Monday, as wind directions reverse to the North-East.
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">
Moderate to strong winds have created wind slabs on all aspects, most reactive in the Alpine. These hidden slabs could be hiding under the new storm snow and have the potential to step down to deeper storm slabs
The Dec 19 facet interface is 30 to 100cm down. This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
Thick wind slabs have formed in the lees of alpine features. Once initiated, they may trigger a persistent slab on the Dec.19th facets. As temperatures drop this week, expect this problem to become less reactive.
The Dec 19 facet interface is 30 to 100cm down. This interface is poorly bonded, resulting in many recent avalanches. This weak, faceted layer will persist for some time.
Thick wind slabs have formed in the lees of alpine features. Once initiated, they may trigger a persistent slab on the Dec.19th facets. As temperatures drop this week, expect this problem to become less reactive.
Hard slab conditions make triggering less likely.
This layer will weaken with the cold weather.
Moderate to strong winds, first from the S Friday and now from the N-NE, have redistributed 60cm+ of recent storm snow. Dec18 Facet interface down 80cm  is a major feature of the snowpack and should not be discounted in your evaluation.
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.
Cold temperatures and hard slab conditions make triggering less likely.&nbsp; Triggering from shallow spots a possibility.
This layer will weaken with cold temperatures.
Pay close attention to the texture of the snow surface as you are traveling, and watch out for dense, wind drifted snow which could indicate the presence of a wind slab. Areas near ridge crests or sides of gullies are obvious places to find these.
The bottom of the snowpack is weak and facetted, and will remain this way for the foreseeable future. Right now there is not much of a cohesive slab overlying this weak foundation, but it is still advisable to avoid large avalanche start zones.
Pay close attention to the texture of the snow surface as you are traveling, and watch out for dense, wind drifted snow which could indicate the presence of a wind slab. Areas near ridge crests or sides of gullies are obvious places to find these.
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.
Christmas holiday storm snow has been redistributed first by strong S'ly winds last week now by N-E mod-strong winds. Watch for reverse loading on exposed terrain in the alpine and at treeline. Look for the Dec 18th layer and stay off convexities.
Cold temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots remains a possibility.
This layer will weaken with cold temperatures. Weak facets continue to develop above and below the November crust found 20-40cm above the ground.
Pay close attention to the texture of the snow surface as you are traveling. Watch out for dense, wind drifted snow which could indicate the presence of a wind slab. Areas near ridge crests or sides of gullies are obvious places to find these.
The bottom of the snowpack is weak and facetted, and will remain this way for the foreseeable future. In most areas there is not much of a cohesive slab overlying this weak foundation, but it is still advisable to avoid large avalanche start zones.
Pay close attention to the texture of the snow surface as you are traveling, and watch out for dense, wind drifted snow which could indicate the presence of a wind slab. Areas near ridge crests or sides of gullies are obvious places to find these.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> In areas with less than 150cm of snow the weak mid pack facets from early December remain. This is a concern wherever a cohesive slab of recent snow sits on top of this weakness. Wind loaded areas are the primary concern. </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://www.avalanche.ca/map?panel=mountain-information-network-submissions%2F630bb3ce-cf74-4a00-a783-4a1dc6c63d74" target="_blank"><span class="s_9255B882">See Monday's profile here.</span></a><span class="s_AA239
">There is continued potential for skiers/boarders to trigger wind slabs in exposed areas at treeline/alpine elevations. These may step down to persistent weak layers. Fresh wind slabs on southerly aspects appear to be more reactive.
Cold temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots remains a possibility.
It is less clear where this layer remains. Shallow areas are weakening and breaking down this layer by faceting with cold temps. Be diligent in your snowpack investigation.
Wind slabs up to 40 cm thick exist in the alpine and some treeline locations. Even a small wind slab has the potential to step down into the weak facetted mid-pack resulting in a bigger avalanche.
The mid and lower pack is weak and facetted, and will remain this way for the foreseeable future. This layer is most concerning in areas where a cohesive slab overlies this weak foundation.
Wind slabs exist in alpine and some treeline locations. Watch for these wind slabs as you transition into alpine terrain.
In areas with less than 150cm of snow the weak mid pack facets from early December remain. This is a concern wherever a cohesive slab of recent snow sits on top of this weakness. Wind loaded areas are the primary concern.
">Widespread windslabs exist in exposed areas. These windslabs exist in unusual areas due to reverse loading by strong N'ly winds. Be especially cautious in areas where the consequences of even a small avalanche would be serious, such as over cliffs.
Wind slabs up to 40 cm thick exist in the alpine and some treeline locations. Even a small wind slab has the potential to step down into the weak facetted mid-pack resulting in a bigger avalanche.
The mid and lower pack is weak and facetted, and will remain this way for the foreseeable future. This layer is most concerning in areas where a cohesive slab overlies this weak foundation.
Wind slabs exist in alpine and some treeline locations. Watch for these wind slabs as you transition into alpine terrain.
In areas with less than 150cm of snow the weak mid pack facets from early December remain. This is a concern wherever a cohesive slab of recent snow sits on top of this weakness. Wind loaded areas are the primary concern.
Cold temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots remains a possibility.
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.
">Widespread, touchy windslabs exist in exposed areas. These windslabs exist in unusual areas due to reverse loading by strong N'ly winds. Be especially cautious where the consequences of even a small avalanche would be serious, such as over cliffs.
Wind slabs up to 40 cm thick exist in the alpine and some treeline locations. Even a small wind slab has the potential to step down into the weak facetted mid-pack resulting in a bigger avalanche.
The mid and lower pack is weak and facetted, and will remain this way for the foreseeable future. This layer is most concerning in areas where a cohesive slab overlies this weak foundation.
Wind slabs exist in alpine and some treeline locations. Watch for these wind slabs as you transition into alpine terrain.
In areas with less than 150cm of snow the weak mid pack facets from early December remain. This is a concern wherever a cohesive slab of recent snow sits on top of this weakness. Wind loaded areas are the primary concern.
Cold temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots remains a possibility.
">Widespread, touchy wind slabs exist in exposed areas. These wind slabs exist in unusual areas due to reverse loading by strong N winds. Be especially cautious where the consequences of even a small avalanche would be serious, such as over cliffs.
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.
Old windslabs are likely to be encountered in many areas TL and above and deserve respect, especially if they overly facets. West winds are forming fresh slabs along TL ridgecrests and in lee areas of the alpine with the snow that fell last weekend.
Loose snow avalanches in gullied terrain can have larger consequences.
Cold temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots remains a possibility.
">Previous reverse loading has left behind wind slabs and firm wind pressed snow in the Alpine and at Tree line. Most of the skier triggered avalanches reported have been on Southerly aspects in shallow areas of the Alpine.
Cold temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots remains a possibility.
In areas with less than 150cm of snow the weak mid pack facets from early December remain. This is a concern wherever a cohesive slab of recent snow sits on top of this weakness. Wind loaded areas are the primary concern.
The mid and lower pack is weak and facetted, and will remain this way for the foreseeable future. This layer is most concerning in areas where a cohesive slab overlies this weak foundation.
Reverse loading has left behind windslab and wind pressed snow in the alpine and at treeline.  Most of the skier triggered avalanches have been on Southerly aspects in shallow areas in the alpine.
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.
Cold temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots or in loaded gullies remains a possibility.
Natural and human triggering has tapered off in recent days, but forecasters still have little confidence and feel there is a high degree of variability across the forecast region. Where winbslabs exist be especially cautious.
Avoid thin snowpack areas, use caution with large uniform features, and consider the potential for shallow trigger points.
Windslabs that formed in immediate lees from previous West winds are now buried but may still be triggerable.
In areas with less than 150cm of snow the weak mid-pack facets from December remain. This is a concern wherever a more cohesive slab of snow sits on top of this weakness. Tree line or wind loaded areas seem to be the primary concern.
Windslab and wind effected snow is widespread from reverse loading winds over Christmas holidays. Pockets of slab reside on the Dec 26th surface hoar layer. Most recent skier triggered slides have been on S'ly aspects in shallow areas in the alpine.
Natural and human triggering has tapered off in recent days, but forecasters still have little confidence and feel there is a high degree of variability across the forecast region. Where winbslabs exist be especially cautious.
Small windslabs and loose snow avalanches can be triggered in the recent storm snow. The main concern is in areas where significant terrain traps exist. Take extra caution when traveling around cliffs and steep gullies.
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 temperatures and hard slab conditions make triggering less likely. Triggering from shallow spots or in loaded gullies remains a possibility. Winds shifting from the North will develop new slabs on Southerly slopes.
In areas with less than 150cm of snow the weak mid-pack facets from December remain. This is a concern wherever a more cohesive slab of snow sits on top of this weakness. Tree line or wind loaded areas seem to be the primary concern.
Small windslabs and loose snow avalanches are expected to be reactive for the next few days. The main concern for this problem is in areas with significant terrain traps. Take extra precautions when traveling around cliffs and steep gullies.
Overnight winds will have whipped the new snow around and created reactive soft slabs in alpine and tree-line lee features. These new slabs sit on old, widespread windslabs, which hide spotty surface hoar.
Various wind directions over the past 72hrs have created windslab on most aspects Treeline and above and rests upon a weak, faceted snowpack. Recent natural activity observed in steep cross loaded gullies.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These slabs are hard to trigger, with a single person, but if they go it will be a dense piece of snow to ride.
The lower half of the snowpack is garbage, and will be for the distant future. Facets, crusts and depth hoar make for a very unsupported base for the snowpack. Large, avalanche prone features are out for now.
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These slabs are hard to trigger, with a single person, but if they go it will be a dense piece of snow to ride.
Facets buried on Dec 19 are down 50-70 cm in some locations. This is a concern wherever a more cohesive slab of snow sits on top of this weakness. Tree line or wind loaded areas seem to be the primary concern.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> New storm snow with a little wind has created touchy Storm Slabs on many treeline and alpine slopes, especially likely in wind-exposed areas. </span><span class="s_2823317B">This will change to a Wind Slab problem</span><span class="s_AA239A9B"> (see below) as soon as winds are visibly transporting snow.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">This problem will </span><span class="s_2823317B">replace </span><span class="s_AA239A9B">the Storm Slab problem as soon as winds arrive. Rising temperatures will accelerate slab development. Monitor winds closely, watch for signs of wind affect, and avoid lee slopes if snow is blowing.
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.
Stubborn windslabs are present in alpine lee features (ridge-crests, cross-loading gullies). These new slabs sit on old, widespread windslabs, which hide spotty surface hoar.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These slabs are hard to trigger, with a single person, but if they go it will be a dense piece of snow to ride.
The lower half of the snowpack is garbage, and will be for the distant future. Facets, crusts and depth hoar make for a very unsupported base for the snowpack. Large, avalanche prone features are out for now.
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These slabs are hard to trigger, with a single person, but if they go it will be a dense piece of snow to ride.
Facets buried on Dec 19 are down 50-70 cm in some locations. This is a concern wherever a more cohesive slab of snow sits on top of this weakness. Tree line or wind loaded areas seem to be the primary concern.
Various wind directions over the past 72hrs have created windslab on most aspects at treeline and above and rests upon a weak, faceted snowpack. Recent natural activity observed in steep cross loaded gullies.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Stubborn windslabs are present on alpine features (ridge-crests, cross-loading gullies). These new slabs are variable in distribution so assess each slope independently. They will be most reactive on convex rolls and in unsupported terrain.
Variable winds have created a complex situation of cross and, reverse loaded features through the region. Stripped ribs, ridge-tops, and open features threaten to push users into areas where the snow is over-loaded and created layered wind-slabs.&nbsp;
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.
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These slabs are hard to trigger, with a single person, but if they go it will be a dense piece of snow to ride.
The lower half of the snowpack is garbage, and will be for the distant future. Facets, crusts and depth hoar make for a very unsupported base for the snowpack. Large, avalanche prone features are out for now.
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These slabs are hard to trigger, with a single person, but if they go it will be a dense piece of snow to ride.
Facets buried on Dec 19 are down 50-70 cm in some locations. This is a concern wherever a more cohesive slab of snow sits on top of this weakness. Tree line or wind loaded areas seem to be the primary concern.
Stubborn windslabs exist on alpine features(ridge-crests, cross-loading gullies) from mod SW winds. These slabs are variable in distribution so assess each slope independently. They will be most reactive on convex rolls and in unsupported terrain.
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These slabs are hard to trigger, with a single person, but if they go it will be a dense piece of snow to ride.
The lower half of the snowpack is garbage, and will be for the distant future. Facets, crusts and depth hoar make for a very unsupported base for the snowpack. Large, avalanche prone features are out for now.
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These slabs are hard to trigger, with a single person, but if they go it will be a dense piece of snow to ride.
Facets buried on Dec 19 are down 50-70 cm in some locations. This is a concern wherever a more cohesive slab of snow sits on top of this weakness. Wind loaded areas seem to be the primary concern.
Variable winds have created a complex situation of cross and, reverse loaded features through the region. Stripped ribs, ridge-tops, and open features threaten to push users into areas where the snow is over-loaded and created layered wind-slabs.
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.
Strong, gusty Westerly winds have caused variable distribution of hard Wind Slabs in open areas - pay attention on all aspects.  This problem also exists Below Treeline in the Front (Eastern) Ranges and near the Waterton Lakes.
Stubborn windslabs exist on alpine features(ridge-crests, cross-loading gullies) from mod SW winds. These slabs are variable in distribution so assess each slope independently. They will be most reactive on convex rolls and in unsupported terrain.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Winds from the north have created hard wind slabs in many areas, and these are reverse from normal locations. These are becoming harder to initiate, and will likely not be a problem in a few days time.
The lower half of the snowpack is garbage, and will be for the distant future. Facets, crusts and depth hoar make for a very unsupported base of the snowpack. These are also harder to initiate, but will cause a large avalanche if triggered.
Winds from the north have created hard wind slabs in many areas, at alpine and tree line elevations. These slabs are hard to trigger, with a single person. This is becoming less likely to initiate and will likely phase out soon.
Facets buried on Dec 19 are down 50-70 cm in some locations. This is a concern wherever a more cohesive slab of snow sits on top of this weakness. Wind loaded areas seem to be the primary concern.
Variable winds have created a complex situation of cross and, reverse loaded features through the region. Stripped ribs, ridge-tops, and open features threaten to push users into areas where the snow is over-loaded and created layered wind-slabs.
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.
Thin stiff windslabs exist along ridge crests and cross loaded features formed by moderate SW winds. These slabs are variable in distribution so take time to assess slopes independently. Avoid convex rolls and unsupported terrain.
Variable winds have created a situation of cross and, reverse loaded features through the region. Stripped ribs, ridge-tops, and open features threaten to push users into areas where the snow has formed new windslabs.
The lower half of the snowpack is garbage, and will be for the distant future. Facets, crusts and depth hoar make for a very unsupported base of the snowpack. These are also harder to initiate, but will cause a large avalanche if triggered.
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.
Facets buried on Dec 19 are down 50-70 cm in some locations. This is a concern wherever a more cohesive slab of snow sits on top of this weakness. Wind loaded areas seem to be the primary concern.
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.
Thin stiff windslabs exist along ridge crests and cross loaded features formed by moderate SW winds. These slabs are variable in distribution so take time to assess slopes independently. Avoid convex rolls and unsupported terrain.
The lower half of the snowpack is weak, consisting of facets, decomposing crusts, and depth hoar. Any slab sitting above this should be considered suspect. While these slabs may be difficult to trigger, the result could be a large avalanche.
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
The lower half of the snowpack is weak, consisting of facets, decomposing crusts, and depth hoar. Any slab sitting above this should be considered suspect. While these slabs may be difficult to trigger, the result could be a large avalanche.
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).
If triggered, potential for large destructive avalanches incorporating the season's snowpack.
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. 
Forecasted snow amounts expected to be 10 to 30cms over the next 48 hours. New slabs expected to be touchy in lee terrain, particularly on North Easterly terrain at upper elevations.
Concern for new snow overloading the season's weak faceted basal layers.
There has been 25 cm of new snow at treeline and up to 50cm in alpine. Some cracking in storm snow was observed on Tuesday. Additional snow is expected on Wednesday. This storm snow will take several days to settle out.
Recent moderate to strong SW winds have redistributed storm snow creating wind slabs in alpine and some treeline locations.
Recent storm snow is sluffing out of steep terrain. Ice climbers in particular should be paying attention to this problem.
The midpack in most areas is weak and facetted. Any slab sitting overtop of this weakness should be considered suspect. While these slabs may be difficult to trigger, the result could be a large avalanche.
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">
The midpack in most areas is weak and facetted. Any slab sitting overtop of this weakness should be considered suspect. While these slabs may be difficult to trigger, the result could be a large avalanche.
There has been 25 cm of new snow at treeline and up to 50cm in alpine. Some cracking in storm snow was observed on Tuesday. Additional snow is expected. This storm snow will take several days to settle out.
Recent moderate to strong SW winds have redistributed storm snow creating wind slabs in alpine and some treeline locations.
Recent storm snow is sluffing out of steep terrain. Ice climbers in particular should be paying attention to this problem.
The interface between the new and old slabs could be touchy.
Storm slabs may be present  especially at tree-line.  The weight of this may overload the weak facets below.
Concern for new snow overloading the season's weak faceted basal layers.
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.
Cross-loaded gullies and ridgeline features will be especially sensitive to human triggering.
Storm slabs may be present especially at tree-line. If triggered, it is likely it will initiate the rest of the weak faceted snowpack.
Isolated locations where this layer is persisting. Has morphed into depth hoar in many areas.
The midpack in most areas is weak and facetted. Any slab sitting overtop of this weakness should be considered suspect and there is a high level of uncertainty around this layer.
Recent winds  ranging from East to SW have created some new windslabs in alpine and treeline features. In some cases, these have been observed to provide enough weight to step down to the deep persistent layer, causing a larger avalanche.
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.
The midpack in most areas is weak and facetted. Any slab sitting overtop of this weakness should be considered suspect and there is a high level of uncertainty around this layer.
Recent winds ranging from East to SW have created some new windslabs in alpine and treeline features. In some cases, these have been observed to provide enough weight to step down to the deep persistent layer, causing a larger avalanche.
Any loaded alpine features will be especially sensitive to human triggering.
Isolated locations where this layer is persisting. Has morphed into depth hoar in many areas.
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.
Due to the depth of the weak layers, trigger points are isolated but the consequence would be high. Shallow areas, rocky areas, and areas with Variable snowpack depth should be avoided. This problem may also exist Below Treeline in the Front Ranges.
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.
The midpack in most areas is weak and facetted. Any slab sitting overtop of this weakness should be considered suspect and there is a high level of uncertainty around this layer.
Recent winds ranging from East to SW have created some new windslabs in alpine and treeline features. In some cases, these have been observed to provide enough weight to step down to the deep persistent layer, causing a larger avalanche.
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.
Any loaded alpine features will be especially sensitive to human triggering.
Isolated locations where this layer is persisting. Has morphed into depth hoar in many areas.
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.
Main concern is for cross loaded gully features and steep rocky convexities on lee aspects where fresh windslabs are present.
The weak lower snowpack is susceptible to triggering in lee areas that have been recently loaded by SW winds and last week's snow.
40cm of new snow has settled into slabs with the warm and humid weather. These continue to be reactive to tests around treeline where isolated SH has been found.
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
The midpack in most areas is weak and facetted. Any slab sitting overtop of this weakness should be considered suspect and there is a high level of uncertainty and variability concerning this layer.
Recent winds ranging from East to SW have created some new windslabs in alpine and treeline features. In some cases, these have been observed to provide enough weight to step down to the deep persistent layer, causing a larger avalanche.
Persistent slabs are most volatile near ridge crest, shallow areas and lee features. Down flow winds in the Sir Don Range have been observed. This layer overlies a variety of interfaces from surface facets to wind slabs.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Due to the depth of the weak layers triggering is unlikely, but the consequence would be high. Avoid shallow rocky areas in big open terrain. This problem may also exist Below Treeline in the Front Ranges.
Watch for fresh Wind Slabs to develop as winds increase later in the week.
Main concern is for cross loaded gully features and steep rocky convexities on lee aspects where fresh windslabs are present.
The weak lower snowpack is susceptible to triggering in lee areas that have been recently loaded by SW winds and last week's snow.
The midpack in most areas is weak and facetted. Any slab sitting overtop of this weakness should be considered suspect. There is a high level of uncertainty and variability concerning this layer.
Small windslabs persist in lee alpine areas. Watch for these wind slabs as you approach ridge-tops and cross-loaded features.
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.
This layer is mainly a concern below treeline where the facetted snow in the lower snowpack continues to produce moderate shears.
Wind slabs are present at ridge-top and on cross-loaded alpine features. They overlay a variety of old surfaces, from facets to surface hoar to old wind slabs. They are most reactive in shallow, thin snowpack areas.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Main concern is for cross loaded gully features and steep rocky convexities on lee aspects where fresh windslabs are present.
The weak lower snowpack is susceptible to triggering in lee areas that have been recently loaded by SW winds and last week's snow.
The midpack in most areas is weak and facetted. Any slab sitting overtop of this weakness should be considered suspect. There is a high level of uncertainty and variability concerning this layer.
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.
Various moderate to hard shears have been identified in the mid-pack. Although hard to trigger, if you find the sweet spot there is potential for larger avalanches.
Wind slabs exist at ridge-top and on cross-loaded alpine features. They overlay a variety of surfaces, and are of most concern on steep terrain where the consequences of even a small avalanche are high, such as over cliffs and terrain traps.
Main concern is for cross loaded gully features and steep rocky convexities on lee aspects where fresh windslabs are present.
The weak lower snowpack is susceptible to triggering in lee areas that have been recently loaded by SW winds and last week's snow.
Due to the depth of the weak layers triggering is unlikely, but the consequence would be high. Avoid shallow rocky areas in big open terrain. This problem may also exist Below Treeline in the Front Ranges.
Watch for fresh Wind Slab development as the winds increase in to the weekend.
The mid and lower snowpack is weak, with both facets and surface hoar buried and producing shears. The tipping point is whether or not there is a cohesive slab overlying these layers. Pay close attention to the slab properties in the upper snowpack.
Because the snowpack is so weak, we don't trust any avalanche starting zones. Avoid steep areas where avalanches can start, and think carefully if you cross tracks or run out zones. Continued conservative choices will remain important for some time.
Wind slabs exist at ridge-top and on cross-loaded alpine features. They overlie a variety of surfaces, and are of most concern on steep terrain where the consequences of even a small avalanche are high, such as over cliffs and terrain traps.
Because the snowpack is so weak, we don't trust any avalanche starting zones. Avoid steep areas where avalanches can start, and think carefully if you cross tracks or run out zones. Continued conservative choices will remain important for some time.
The mid and lower snowpack is weak, with both facets and surface hoar buried and producing shears. The tipping point is whether or not there is a cohesive slab overlying these layers. Pay close attention to the slab properties in the upper snowpack.
Big open alpine features, especially with a solar aspect, should be avoided.  Recent natural avalanche activity on these slopes is expected to continue. 
The weak lower snowpack is susceptible to triggering.
Wind slabs exist at ridge-top and on cross-loaded alpine features. They overlie a variety of surfaces, and are of most concern on steep terrain where the consequences of even a small avalanche are high, such as over cliffs and terrain traps.
Because the snowpack is so weak, we don't trust any avalanche starting zones. Avoid steep areas where avalanches can start, and think carefully if you cross tracks or run out zones. Continued conservative choices will remain important for some time.
The mid and lower snowpack is weak with facets producing moderate to hard shears. In the upper snowpack around treeline a buried layer of surface hoar produces easy to moderate shears. Pay close attention to the slab properties overlying these layers
Big open alpine features, especially with a solar aspect, should be avoided. Recent natural avalanche activity on these slopes is expected to continue.
The weak lower snowpack is susceptible to triggering.
Wind slabs exist at ridge-top and on cross-loaded alpine features. They sit atop a variety of surfaces and are most concerning on steep terrain where the consequences of even a small avalanche are high.
The snowpack is so weak, we don't trust slopes where a slab sits over the deeper weak layers. Avoid steep slopes with this structure. Continued conservative choices will remain important for some time.
Big open features should be avoided. Recent natural avalanche activity on these slopes is expected to continue.
Wind loading and shedding from steep faces, especially concerning for ice climbers.
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. Pay close attention to the slab properties overlying these layers.
Due to the depth of the weak layers triggering is unlikely, but the consequence would be high. Avoid shallow rocky areas in big open terrain. This problem may also exist Below Treeline in the Front Ranges.
Expect small pockets of fresh Wind Slab in lees.
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 slabs exist at ridge-top and on cross-loaded alpine and treeline features.  Given the right location they may be triggered by skiers.  They are of most concern in high consequence locations such as steep terrain.
The snowpack is weak. Slopes where a slab sits over the deeper weak layers should be treated as suspect. Avoid steep slopes with this structure. Continued conservative choices will remain important for some time.
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. Pay close attention to the slab properties overlying these layers.
Big open features and climbs with significant overhead hazard should be avoided as the weak bond between layers strengthens.
Wind loading and shedding from steep faces, especially concerning for ice climbers.
Wind slabs exist at ridge-top and on cross-loaded alpine and treeline features. Given the right location they may be triggered by skiers. They are of most concern in high consequence locations such as steep terrain.
The snowpack is weak. Slopes where a slab sits over the deeper weak layers should be treated as suspect. Avoid steep slopes with this structure. Continued conservative choices will remain important for some time.
Strong to extreme South and West winds combined with 5 to 10 cm of new snow continue to form slabs in lees areas Monday. These are likely to remain reactive for some time after the winds abate
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. Increased slab development overlying these layers is likely with recent winds.
Fresh windslabs exist in the immediate lees and will remain reactive for some time after the winds abate.
Newly formed wind slabs from the recent strong wind event have had minimal time to start bonding. Below ridge crests, cross-loaded features and any wind loaded area are suspect for human triggering.
The snowpack is weak. Slopes where a slab sits over the deeper weak layers should be treated as suspect. Until we get some rounding or compression, the snowpack is going to remain fragile to input.
Strong to extreme South and West winds combined with 5 to 10 cm of new snow continue to form slabs in lees areas Monday. These are likely to remain reactive for some time after the winds abate.
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. Increased slab development overlying these layers is likely with recent winds.
Fresh windslabs exist in the immediate lees and will remain reactive for some time after the winds abate.
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.
Although it has been several weeks since natural activity was last seen on the deeply buried December Facets / November Crust, the consequences of triggering a large avalanche from just the wrong shallow, faceted spot, could be dire.
Recent windloading has created windslab on all aspects in the alpine. On south and west aspects the windslab will become easier to trigger with solar warming. Evidence of this windslab is widespread, obvious &amp; it will take more time to become stable
The snowpack is weak. Slopes where a slab sits over the deeper weak layers should be treated as suspect. Until we get some rounding or compression, the snowpack is going to remain fragile to input.
Activity on new wind slabs has slowed down due to colder temperatures, but watch for them in steep exposed areas at upper elevations. Up until 2 days ago there was quite a bit of wind slab avalanche activity.
Big open features and climbs with significant overhead hazard should be avoided until the weak bond between layers strengthens.
Wind loading and shedding from steep faces, especially concerning for ice climbers.
Big open features and climbs with significant overhead hazard should be avoided until the weak bond between layers strengthens.
Wind loading and shedding from steep faces, especially concerning for ice climbers.
Big open features, cross-loaded gulleys and ice climbs below significant overhead hazard should be avoided as the weak bond between layers strengthens.
Faceted snow may be triggered on steep solar aspects.
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. Increased slab development overlying these layers is likely with recent winds.
Wind slabs exist in the immediate lees which are decreasing in sensitivity to triggering.
Recent windloading has created windslab and fragile cornices in the alpine. The wind slab will be most reactive on convex or unsupported rolls. On south and west aspects the windslab will become easier to trigger with solar warming.
The snowpack is weak. Slopes where a slab sits over the deeper weak layers should be treated as suspect. Until we get some rounding or compression, the snowpack is going to remain fragile to any input. Expect the hazard to rise with incoming snow.
Big open features, cross-loaded gulleys and ice climbs below significant overhead hazard should be treated cautiously.
Faceted snow is easily triggered and can grow quickly by entraining surrounding snow.
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. Increased slab development overlying these layers is likely with recent winds.
Previous strong to extreme winds left behind a variety of surface conditions, from hard wind slabs to complete scouring near ridge crests. Wind slabs will be most reactive on lee terrain features or cross loaded areas.
The snowpack is weak. Slopes where a slab sits over the deeper weak layers should be treated as suspect. Increasing load and further slab development will make these slabs more sensitive through the weekend.
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. Slab development will make triggering these layers more likely this weekend.
New snow is reverse loading on weak surface facets or surface hoar. These new slabs will bond poorly.&nbsp; Last week's slab from M to S winds are still suspect.&nbsp; Big open features and cross-loaded gulleys should be avoided until storm passes.
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.
The snowpack is weak. Slopes where a slab sits over the deeper weak layers should be treated as suspect. Increasing load and further slab development will make these slabs more sensitive Sunday and Monday.
Small in size currently, watch locally for their formation and the bed surface they are lying on.  There are wind layers, facets, surface hoar and sun crust depending on location.  If there is increased E wind, watch for reverse loading.
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.
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.
New snow is reverse loading on weak surface facets or surface hoar. These new slabs will bond poorly. Last week's slab from M to S winds are still suspect. Big open features and cross-loaded gulleys should be avoided until storm passes.
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.
The snowpack is weak. Slopes where a slab sits over the deeper weak layers should be treated as suspect. Increasing load and further slab development will make these slabs more sensitive Monday and Tuesday.
Small in size currently, watch locally for their formation and the bed surface they are lying on. There are wind layers, facets, surface hoar and sun crust depending on location.
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.
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 
Moderate NE winds have transported 10cm of storm snow onto south westerly slopes building windslab. These new slabs will bond poorly. Last week's slab from M to S winds are still suspect. Big open features and cross-loaded gulleys should be avoided.
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.
Moderate NE winds have transported 10cm of storm snow onto south westerly slopes building windslab. These new slabs will bond poorly. Last week's slab from M to S winds are still suspect. Big open features and cross-loaded gulleys should be avoided.
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
N'ly winds at ridgetop, and downflow winds in drainages have changed the landscape, forming 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">
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.
Fresh wind slabs can be expected with the new snow and strong forecasted winds.
The persistent weak layer in the mid-pack may waken up with the additional storm snow and the warming temperatures forecasted for Thursday.
New snow and strong forecasted winds will create new wind slabs in alpine and treeline regions.
Strong SW winds building windslab with recent storm snow and expected to bond poorly.
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.
The Jan 17 interface or deeper layers might be woken up with the forecasted heavy snowfall and would result in large avalanches.
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.
With 15cm of new snow overnight and 18cm on the way today, expect to see loose dry avalanches occurring naturally from steep terrain. Even steep open lines below tree line will require some sluff management today.
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.
Moderate SW winds building windslab with recent storm snow and expected to bond poorly.
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.
The Jan 17 interface or deeper layers might be woken up with the forecasted heavy snowfall and would result in large avalanches.
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.
Strong Westerly winds have plenty of snow to move around at Treeline and above.  Combined with warm temperatures, wind slabs will be growing in size.  This problem will be most reactive on Saturday.&nbsp; These may be hard and stubborn in the alpine.
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.
Expect drifted snow to be deeper than 100 cm in leeward areas on Saturday and very susceptible to human triggering. Give avalanche terrain a wide berth and remember that fracture lines may extend further that you expect.
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.
Expect drifted snow to be deeper than 100 cm in leeward areas on Saturday and very susceptible to human triggering. Give avalanche terrain a wide berth and remember that fracture lines may extend further that you expect.
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.
Moderate to strong SW winds building windslab with recent storm snow and expected to bond poorly.
Avalanches initiated within the storm snow were stepping down to deeper layers and in some cases gouging to ground in thin snowpack areas.
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 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.
Expect drifted snow to be deeper than 100 cm in leeward areas on Sunday and very susceptible to human triggering over the next few days. Give avalanche terrain a wide berth as fracture lines may extend further that you expect.
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.
Expect drifted snow to be deeper than 100 cm in leeward areas on Saturday and very susceptible to human triggering. Give avalanche terrain a wide berth and remember that fracture lines may extend further that you expect.
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.
Strong SW winds building windslab with recent storm snow.&nbsp; Avalanche cycle continues on alpine lee slopes.
30-40cm of storm snow has formed a touchy storm slab.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
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</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.
Extreme SW winds building windslab with recent storm snow.
30-40cm of storm snow has formed a touchy storm slab.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
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.
Strong to extreme wind on Sunday has created fresh wind-slabs that are ripe for human triggering. Give avalanche terrain a wide berth as fracture lines may extend further that you expect.
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.
Strong to extreme wind from the SW on Sunday has re-loaded lee areas with fresh wind slabs that are ripe for human triggering. Give avalanche terrain a wide berth and remember that fracture lines may extend further that you expect.
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.
Hard touchy windslab in the alpine and open tree-line features showing very serious potential for wide propagation in connected features.
30-40cm of storm snow has formed a touchy storm slab.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Strong to extreme winds from the SW have created wind slabs and fragile cornices that are ripe for triggering. Give avalanche terrain a wide berth and remember that fracture lines may extend further that you expect with hard slabs in alpine 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.
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.
Strong to extreme wind on Sunday created wind-slabs and cornices that are ripe for triggering. Slabs are becoming firmer in high start zones. Give avalanche terrain a wide berth as fracture lines may extend further that you expect.
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.
Hard touchy windslab in the alpine and open tree-line features showing very serious potential for wide propagation in connected features.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Strong to extreme wind on Sunday created wind-slabs and cornices that are ripe for triggering. Slabs are becoming firmer in high start zones. Give avalanche terrain a wide berth as fracture lines may extend further that you expect.
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.
Strong to extreme winds from the SW have created wind slabs and fragile cornices that are ripe for triggering. Give avalanche terrain a wide berth and remember that fracture lines may extend further that you expect with hard slabs in alpine 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.
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.
Moderate S-SW winds were moving snow along alpine ridges yesterday. Expect fresh windslab along the immediate lee of alpine wind exposed features.
Hard touchy windslab in the alpine and open tree-line features showing very serious potential for wide propagation in connected features.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
Rain and warm temperatures expected in valley bottoms.
Strong to extreme wind on Sunday created wind-slabs and cornices that are ripe for triggering. Slabs are becoming firmer in high start zones. Give avalanche terrain a wide berth as fracture lines may extend further that you expect.
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.
Strong to extreme winds from the SW have created wind slabs and fragile cornices that are ripe for triggering. Give avalanche terrain a wide berth and remember that fracture lines may extend further that you expect with hard slabs in alpine 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.
New snowfall accompanied by Strong SW wind on Thursday through Friday morning could build fresh wind slabs on lee slopes, 15-40cm thick, &amp; more likely to be reactive where they sit over a sun/temperature crust - most likely East &amp; South-East aspects.
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
The new snow has buried and is adding to last weekend's windslab in the alpine and open tree-line features.&nbsp; These slabs are showing the potential for wide propagation in connected features.
Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.
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.
Fresh snow and moderate SW winds have created touchy windslabs in alpine and open terrain near 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.
Fresh snow and recent wind has created fresh wind slabs in alpine and open terrain near treeline.
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.
Fresh snow and recent wind has created fresh wind slabs in alpine and open terrain near treeline,
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.
Fresh snow and moderate SW winds have created touchy windslabs in alpine and open terrain near treeline.
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.
Widespread shooting cracks and whumphing was noted by the forecasting team as this layer fails.&nbsp; Especially sensitive in the Portal Creek area.
The new snow has buried and is adding to last weekend's windslab in the alpine and open tree-line features.
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.
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.
25cm HST and moderate SW winds have added to the windslab problem in the alpine and open tree-line features.
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.
25cm HST and moderate SW winds have added to the windslab problem in the alpine and open tree-line features.
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.
25cm HST and moderate SW winds have added to the windslab problem in the alpine and open tree-line features.
Weak layers in the top meter include sun crusts on S'ly aspects and pockets of surface hoar on N'ly aspects. Field tests show isolated sudden planar results, making the weak layers hard to predict. Be careful in thin snowpack locations.
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.
Previous 25cm snow and moderate SW winds have added to the windslab problem in the alpine and open tree-line features.
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.
Recent snowfall has been heaviest near the divide and tapers quickly as you move East. </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">Be extra cautious in areas where the new snow is deepest.
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.
Previous 25cm snow and moderate SW winds have added to the windslab problem in the alpine and open tree-line features.
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.
A crust buried last Sunday could act as a bed surface, if slab properties are enabled with daytime heating on solar aspects. Loose dry avalanches are also possible.
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.
Previous 25cm snow and moderate SW winds have added to the windslab problem in the alpine and open tree-line features.
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.
Windslabs have developed and will persist as the weather remains static. Potentially overlying buried surface hoar from Feb 10 so be vigilant particularly in the alpine and open tree-line features.
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.
Winds on Saturday will build Wind Slabs lee to Westerly winds. How quickly, and to what extent, is a question of how strong &amp; long the wind blows. There is plenty of snow available for transport - avalanches may be Large.
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;
The previous windslabs has evolved into a persistent slab buried under 5-10cm of new snow. It potentially overlies a buried surface hoar from Feb 10 but hard to locate. Be vigilant particularly in sheltered spots preserving the buried surface hoar.
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.
New low density snow is sluffing fast in steep unsupported terrain. It has the potential to knock a rider off their feet or push them into a terrain trap.
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;
Persistent slabs are buried under 5-10cm of new snow. It potentially overlies a buried surface hoar from Feb 10 but difficult to locate. Be vigilant particularly in sheltered spots where buried surface hoar may be lurking.
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.
Winds mid-week will build fresh Slabs on East facing lees. There is plenty of snow available for transport - avalanches may be Large.
Mod winds out of the south and recently out of the north have likely formed wind slabs below ridge crests on all aspects.
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.
Persistent slabs are buried under 5-10cm of new snow. It potentially overlies a buried surface hoar from Feb 10 but difficult to locate. Be vigilant particularly in sheltered spots where buried surface hoar may be lurking.
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.
West wind (mod to strong) and light snowfall amounts will create wind-slabs in lee areas at tree-line and above starting Tuesday evening. There is uncertainty as to how touchy these slabs will be.
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.
Light snowfall and an increase in wind from the west is expected to build wind slabs in lee areas at tree line and above. There is uncertainty as to how touchy these slabs will be.
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;
Persistent slabs are buried under 10cm of snow. It potentially overlies a buried surface hoar from Feb 10 but it's difficult to locate. Be vigilant particularly in sheltered spots where buried surface hoar may be lurking.
New snow and continued wind-transport have added to the wind slab problem. There have been close calls recently, and although likely to be small, wind slabs are most likely in terrain where a fall caused by an avalanche could have high consequences.
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.
Thin windslabs are building on lee aspects.
Trigger possible from shallow spots.
Persistent slabs are buried under the light snow that has accumulated.&nbsp; Be vigilant particularly in sheltered spots where buried surface hoar may be lurking.
Storm slabs will continue to build through the forecast period.
Now buried, previous soft Wind Slabs may be difficult to detect.
Primarily a concern in steep sheltered terrain.
New snow and continued wind-transport have created storm slabs. In isolate locations, the storm snow conceals existing wind slabs. Ongoing precipitation and wind activity could enable these slabs to step down and trigger deeper instabilities.
With increased load and strong to extreme winds, expect rapid wind loading and failure of new wind slabs. These may be enough of a trigger in certain places to step down to deep persistent layers causing bigger avalanches.
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.
Windslabs are building on lee aspects and will increase in reactively throughout the day on Friday.
Trigger possible from shallow spots.
Persistent slabs are buried under the light snow that has accumulated. Be vigilant particularly in sheltered spots where buried surface hoar may exist.
With strong winds and fresh snow, expect new wind slabs to form and fail during the forecast storm. If triggered these may step down to where weaker layers are present, especially at treeline.
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.
With strong winds and fresh snow, new wind slabs and sensitive cornices are forming. If triggered these may step down to the deep persisitent layers.
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.
New snow and strong SW winds are forming fresh windslabs and sensitive cornices. If these fail they could provide enough of a load to trigger deep persistent layers resulting in large avalanches.
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.
Large volumes of snow are being blown around on Friday as this is written.  Due to Extreme SW winds, the slabs this creates may be lower on the slope than you would usually expect. Don't be surprised! Transition carefully into any open terrain.
In some locations, buried Wind Slabs sit unsteadily on 5-10cm of small facets. There is plenty of uncertainty about where these exist; however, they are most likely at Treeline, and are touchy on steep S and SW aspects where facets overlie a crust.
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.
45cm of storm snow is forming a soft slab at treeline and above. It will remain very reactive to triggering for the next 24 hours. Where stronger winds in the alpine have transported the snow it may be up to 60cm thick.
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.
20-40cm of new snow with moderate to strong winds have formed new winds slabs above treeline and rapid cornice development. Human triggering will be likely for the next day or two.
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.
20-40cm of new snow and strong SW winds have forming fresh wind slabs and sensitive cornices above treeline. If these fail they could provide enough of a load to trigger deep persistent layers resulting in large avalanches.
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.
Fresh Storm Slabs will likely form this week with snow and moderate wind in the forecast.
New snow may be hiding Wind Slabs formed by previous South West winds. Don't be surprised! Transition carefully into any open terrain.
There is uncertainty about the distribution of this layer, it is suspected to be most reactive at Treeline, on steep S and SW aspects where facets overlie a crust.
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.
Increased loading on this layer from the recent storm snow has produced a number of releases up to size 3. Triggering is mostly likely from shallower locations around rocky terrain.
20-40cm of new snow has developed a storm slab in the alpine and at tree line, failure of this layer could provide enough of a load to trigger deep persistent layers resulting in large avalanches.
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.
20-40cm of new snow has settled into a reactive storm slab. Human triggering will be likely for the next day or two.
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.
Increased loading on this layer from the recent storm snow has produced a number of releases up to size 3. Triggering is mostly likely from shallower locations around rocky terrain.
A 50 cm slab of storm snow is touchy and very sensitive to triggers. Avoid any avalanche starting zones, as this slab appears to be widespread. Fracture lines have been spreading into adjacent terrain, so mind your exposure carefully.
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.
A 50 cm slab of storm snow is touchy and very sensitive to triggers. Avoid any avalanche starting zones, as this slab appears to be widespread. Fracture lines have been spreading into adjacent terrain, so mind your exposure carefully.
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.
Increased loading on this layer from the recent storm snow has produced a number of releases up to size 3. Triggering is mostly likely from shallower locations around rocky terrain.
A 50 cm slab of storm snow continues to be reactive. Avoid any avalanche starting zones, as this slab appears to be widespread. Fracture lines have been spreading into adjacent terrain, so mind your exposure carefully.
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.
A 50 cm storm slab has been very reactive in recent avalanche control . Avoid any avalanche starting zones, as this slab appears to be widespread. Fracture lines have been spreading into adjacent terrain, so mind your exposure carefully.
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. 
A 50 - 60 cm slab of storm snow continues to be reactive and is widespread at upper elevations. Fracture lines have been spreading into adjacent terrain, so mind your exposure carefully.
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.
A 50 - 60 cm storm slab has been very reactive in recent avalanche control, and this slab appears to be widespread. Fracture lines have been spreading into adjacent terrain, so mind your exposure carefully.
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 exist on Thursday, but will grow in size and sensitivity on Friday, and will remain primed for human triggering on Saturday. Pay special attention to slopes lee to SW winds - these winds will build touchy slabs on lee slopes.
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.
There is uncertainty about the distribution of this layer, it is suspected to be most reactive at Treeline, on steep S and SW aspects where facets overlie a crust.
Moderate to strong S winds transported snow at upper elevations forming soft slabs along the immediate lee of ridges and cross winded features. Skiers were able to trigger wind slabs on immediate lee features yesterday.
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.
50cm of dry snow from the past week is being blown into cohesive windslabs at higher elevations. Expect these to react easily to triggers, and keep your distance from avalanche starting zones. We have seen long propagations up to 400m this past 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.
60cm of dry snow from the past week is being blown into cohesive windslabs at higher elevations. Expect these to react easily to triggers, and keep your distance from avalanche starting zones. We have seen long propagations up to 400m this past week.
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.
50cm of dry snow from the past week is being blown into cohesive windslabs at higher elevations. Expect these to react easily to triggers, and keep your distance from avalanche starting zones. We have seen long propagations up to 400m this past 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.
SE winds are creating slab on lee aspects and firming it up on windward aspects. March 3rds 45cm of low density snow is available for transport. It may be overtop a decomposed SH layer on CR 30cm down on South TL aspects.&nbsp;
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.
60cm of dry snow from the past week is being blown into cohesive windslabs at higher elevations. Expect these to react easily to triggers, and keep your distance from avalanche starting zones. We have seen long propagations up to 400m this past week.
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.
There is uncertainty about the distribution of this layer, it is suspected to be most reactive at Treeline, on steep S and SW aspects where facets overlie a crust.
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
50-60cm of dry snow from the past week is being blown into cohesive wind slabs at higher elevations. Warmer temperatures will help settle these out and become less reactive, but it may take a few days for the snowpack to fully adjust to the new load.
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.
S-ly winds are creating slab on lee aspects and firming it up on windward aspects. Trigger and you're very likely to initiate deeper instabilities and really wreak your day.
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.
60-70cm of dry snow from the past week has been blown into cohesive wind slabs at higher elevations. These are losing sensitivity, but the snowpack will take a few days to fully adjust to the load.
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.
60-80cm of dry snow from the past week is being blown into cohesive wind slabs at higher elevations. Warmer temperatures will help settle these out and become less reactive, but it may take a few days for the snowpack to fully adjust to the new load.
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.
SW winds creating slabs on lee and pressing snow on windward aspects. May be overtop decomposed SH layer on CR 30cm down on South TL aspects.
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.
Persistent mid-pack slab condition continuing to surprise but not the good kind of surprise! Like triggering an unseen overhead feature; Surprise!
Significant snowfall accumulations from the past month are currently stressing the middle and lower snowpack.  Persistent weak layers will be further tested as the temperatures rise in to the middle of the week.
60-70cm of dry snow from the past week has been blown into cohesive wind slabs at higher elevations. These windslabs have potential to be touchy in places.
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.
A 40-50cm cohesive windslab exists at higher elevations, and in specific wind effected areas near treeline. This slab reacts easily to tests and its expected that skiers could trigger it.
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.
A 40-50cm cohesive windslab exists at higher elevations, and in specific wind effected areas near treeline. This slab reacts easily to tests and its expected that skiers could trigger it.
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.
SW winds creating slabs on lee and pressing snow on windward aspects. May be overtop decomposed SH layer on CR 30cm down on South TL aspects.
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.
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</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.
A 40-50cm cohesive windslab exists at higher elevations, and in wind effected areas near treeline. This slab reacts easily to tests and is producing avalanches now.
A 40-50cm cohesive windslab exists at higher elevations, and in specific wind effected areas near treeline. This slab reacts easily to tests and is producing avalanches on Tuesday.
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.
SW winds creating slabs on lee and pressing snow on windward aspects. May be overtop decomposed SH layer on CR 30cm down on South TL aspects.
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.
Old storm slabs were settling before Tuesdays precipitation, but increased load from further loading means it is worthwhile digging to test this slab. New snowfall with SW wind &amp; warm temps will create fresh, reactive storm slabs on lee slopes.
Significant ongoing snowfall accumulations, combined with sustained warm temperatures are currently stressing facets in the lower snowpack, and a crust in the mid snowpack.
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.
A 40-50cm cohesive windslab exists at higher elevations, and in wind effected areas near treeline. This slab reacts easily to tests and continues to produce avalanches
With cooling temperatures the activity from this layer will decrease at treeline as the day progresses.
Up to 20cm has fallen in the past 24hrs and is bonding poorly to last weeks snow. Soft slabs up to size 2 have been running to the valley bottom and in some cases are believed to trigger deeper releases.
With additional snow loading, rain  and warm temperatures this problem has become reactive producing full path releases 
A 40-50cm cohesive windslab exists at higher elevations, and in specific wind effected areas near treeline. This slab reacts easily to tests and is producing avalanches.
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.
Wind slabs over 1m deep exist at higher elevations, and in wind effected areas near treeline. This slab reacts easily to tests and continues to produce avalanches
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.
Wind slabs up to 1meter deep exists at higher elevations, and in specific wind effected areas near treeline. Expect these to continue growing with additional inputs.
With all the new snow kicking around gullies and steep terrain will be sluffing over the short term.
New snowfall with SW wind &amp; warm temps will create fresh, reactive storm slabs on lee slopes. Expect these avalanches to be largest near the divide, including Cameron Lake area.&nbsp; Heavy snowfall is possible in Western areas on Saturday.
Significant ongoing snowfall accumulations, combined with sustained warm temperatures are currently stressing facets in the lower snowpack, and a crust in the mid snowpack.
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.
Up to 20cm has fallen in the past 24hrs and is bonding poorly to last weeks snow. Soft slabs up to size 2 have been running to the valley bottom and in some cases are believed to trigger deeper releases.
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.
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.
Wind slabs over 1m deep exist at higher elevations, and in wind effected areas near treeline. This slab reacts easily to tests and continues to produce avalanches
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. 
Wind slabs up to 1 meter deep exist at higher elevations, and in specific wind effected areas near treeline. Expect these to continue growing with additional inputs.
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.
40cm of storm snow over the week has formed a dangerous windslab. Wide crowns up to 2m deep have been seen from Maligne to Parkers area. Strong to extreme SW winds and warm temps will keep this layer very active.
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.
40cm of storm snow over the week has formed a dangerous windslab. Wide crowns up to 2m deep have been seen from Maligne to Parkers area. Strong to extreme SW winds and warm temps will keep this layer very active.
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.
Wind slabs over 1m deep exist at higher elevations, and in wind effected areas near treeline. This slab reacts easily to tests and continues to produce avalanches. Correspondingly cornices have grown significantly and are fragile.
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.
Wind slabs over 1m deep exist at higher elevations, and in wind effected areas near treeline. This slab reacts easily to tests and continues to produce avalanches. Correspondingly, cornices have grown significantly and are fragile.
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
New snowfall with SW wind &amp; warm temps has created fresh, reactive storm slabs on lee slopes. Expect these avalanches to be largest near the divide, including Cameron Lake area.
Recent warm temperatures &amp; heavy snowfall has added stress to facets in the lower snowpack, and a crust in the mid snowpack that may have overlying facets in isolated areas. It will take days for temperatures to cool deep within the snowpack.
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.
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</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.
50+cm of storm snow over the week has formed a dangerous windslab. Wide crowns up to 2m deep have been seen from Maligne to Parkers area. Moderate to strong SW winds and warm temps will keep this layer very active.
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.
Wind slabs over 1m deep exist at higher elevations, and in wind affected areas near treeline. This slab reacts easily to tests and continues to produce avalanches. Correspondingly, cornices have grown significantly and are fragile.
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.
Wind slabs over 1m deep exist at higher elevations and in wind affected areas near treeline. These slabs react easily to tests and continues to produce avalanches. Correspondingly, cornices have grown significantly and are fragile.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">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. </span><span class="s_2823317B">Strong solar warming</span><span class="s_AA239A9B"> today will test this slab.
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.
Wind slabs over 1m deep exist at higher elevations, and on ridges near tree line. This slab is still reactive in tests and can produce avalanches. Cornices have also grown significantly and are fragile. Avoid all areas with recent wind effect.
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.
Wind slabs over 1m deep exist at higher elevations and at ridge crests near tree line. These slabs are still reactive in tests and could produce avalanches. Cornices have also grown significantly and are fragile. Avoid areas with wind effect.
60cm of storm snow over the week has formed a dangerous windslab. Wide crowns up to 2m and a km long have been seen across the range. In shallow areas several of these stepped to ground. All are running a long way into the valley.
Large cornices on lee features some visibility detaching. Those that have released are triggering large avalanches from alpine terrain
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 will take time for the storm slabs to stabilize. Snowpack tests in the region yesterday show that it is still reactive, and N'ly winds overnight will have reverse loaded lee slopes potentially re-awakening slabs in those areas.
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.
60cm of storm snow over the past week has formed a dangerous windslab. Wide crowns up to 2m and a km long have been seen across the range. In shallow areas several of these stepped to ground. All are running a long way into the valley.
Large cornices on lee features some visibility detaching. Those that have released are triggering large avalanches from alpine terrain
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.
Wind slabs over 1m deep exist at higher elevations, and on ridges near tree line. This slab is still reactive in tests and can produce avalanches. Cornices have also grown significantly and are fragile. Avoid all areas with recent wind effect.
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.
Wind slabs over 1m deep exist at higher elevations and at ridge crests near tree line. These slabs are still reactive in tests and could produce avalanches. Cornices have also grown significantly and are fragile. Avoid areas with wind effect.
A crust down 1m (to Treeline, and higher on solar aspects) and Facets in the bottom 1/3rd of the snowpack, are slowly adjusting to recent heavy loading. Human triggering of large, destructive avalanches remains Possible, in the wrong terrain.
With a lot of new snow available for transport and winds shifting directions, expect wind-slabs to have formed in many areas. If triggered they may step down to deeper layers. Overloaded cornices have been failing and triggering very large avalanches
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.
60cm of storm snow over the past week has formed a dangerous and unpredictable windslab. Crowns up to 2m deep and a km long have been seen. Several of these stepped to ground and ran into the valley.
Large cornices on lee features with some visibly detached. Those that may release would likely trigger a large avalanche. Give them a wide berth.
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!
Wind loading was occurring through the day on Wednesday, and we expect fresh windslabs to be forming at higher elevations. Some speculate that today's wind loading was the trigger for a very large avalanche near Bow Hut.
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.
Wind slabs over 1m deep exist at higher elevations and at ridge crests near tree line. These slabs are still reactive in tests and could produce avalanches. Cornices have also grown significantly and are fragile. Avoid areas with wind effect.
Strong winds overnight have continued to transport new snow to lee features above treeline. Newly formed wind slabs may be poorly bonded to last week's storm snow and may step down to deeper layers if triggered. 
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.
Large cornices on lee features with some visibly detached. Those that may release would likely trigger a large avalanche. Give them a wide berth.
Significant snow is available for transport at treeline and above as witnessed at the Icefields today.&nbsp; Avalanche to size 2.5 have been observed and may step down to deeper layers&nbsp; running far into the valley below. Bonding appears to be improving.
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.
Recent winds overnight have formed isolated wind slabs on lee features above treeline. Wind slabs may be poorly bonded to last week's storm snow and may step down to deeper layers if triggered.
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.
Wind loading was occurring through the day on Thursday, and fresh windslabs have formed at higher elevations. These windslabs are easy to trigger and will likely be enough load to trigger a larger avalanche.
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.
Moderate to strong winds SW and W winds over the last 24 hours are adding to the cornices and load on alpine slopes. These fresh windslabs have been touchy in immediate lees and could be the trigger needed for a bigger avalanche.
Natural activity is starting to taper, but the snowpack is considered very suspect right now. Large avalanches initiating TL and above have recently run to valley bottom with crowns up to 2m + deep and several hundred meters in length.
Wind transport was significant Thursday and has continued to a lesser extent Friday. Expect the fresh slabs that have formed at higher elevations to be easy to trigger. Expect the new growth on cornices to be fragile.
Natural activity is starting to taper, but the snowpack is considered very suspect right now. Large avalanches initiating TL and above have recently run to valley bottom with crowns up to 2m + deep and several hundred meters in length.
Wind transport was significant Thursday and has continued to a lesser extent Friday. Expect the fresh slabs that have formed at higher elevations to be easy to trigger. Expect the new growth on cornices to be fragile.
Large cornices on lee features with some visibly detached and looking precarious. Those that have released are triggering large avalanches from alpine terrain. Give them a wide berth.
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.
Snow is being transported at treeline and above. Slabs exist near ridge tops and open treeline spots. Avalanches to size 2.5 have been observed. Lower elevation features such as glacial moraines have slid to size 2 in isolated areas.
A crust down 1m (up to Treeline, and higher on solar aspects), and Facets in the bottom 1/3rd of the snowpack, are persisting as weak layers to be respected. These could be triggered by cornice falls, or by human triggered in isolated areas.
Pockets of Wind Slab can be found in the Alpine and at Treeline. Due to Extreme, gusty winds these may be lower on the slope than you expect. New snow and wind on Friday night will hide the old windslabs, and create reactive new wind slabs.
Moderate winds and 10-15 cm of new snow have formed isolated wind slabs on lee features above treeline. Wind slabs may be poorly bonded to last week's storm snow and may step down to deeper layers if triggered.
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 has decreased, but the snowpack is considered very suspect right now. Large avalanches initiating TL and above have recently run to valley bottom with crowns up to 2m + deep. Suspect increase reactive with solar inputs.
Wind transport continues to load lees features. Expect the fresh slabs that have formed at higher elevations to be easy to trigger. Expect the new growth on cornices to be fragile.
Natural activity is starting to taper, but the snowpack is considered very suspect right now. Large avalanches initiating TL and above have recently run to valley bottom with crowns up to 2m + deep and several hundred meters in length.
Wind transport was significant Thursday and has continued to a lesser extent Friday. Expect the fresh slabs that have formed at higher elevations to be easy to trigger. Expect the new growth on cornices to be fragile.
The deep persistent slab can be triggered by travelers from shallow or weak locations or naturally from large loads such as cornice failure or windslab avalanches.&nbsp; On Mar 25, skiers triggered a sz 3 on this layer.
Windslabs exist at treeline and above on lee aspects. No recent natural activity has been observed however human triggering is possible.
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.
Windslabs building at treeline and above on lee aspects and while thin on Sunday afternoon, it is sensitive to triggering.
The deep persistent slab can be triggered by travelers from shallow or weak locations or naturally from large loads such as cornice failure or windslab avalanches. On Mar 25, skiers triggered a sz 3 on this layer.
Natural activity has decreased, but the snowpack has a weak base and is still very suspect right now. Any avalanche triggered on this deep facet layer will be large. Large avalanches initiating in the alpine have recently run to valley bottom.
Natural activity is starting to taper, but the snowpack is considered very suspect right now. Large avalanches initiating TL and above have recently run to valley bottom with crowns up to 2m + deep and several hundred meters in length.
Building windslab at tree line and above on lee aspects. It's a continuous problem that requires constant attention in order to ensure your safety and/or riding quality. 
The deep persistent slab can be triggered by travelers from shallow or weak locations or naturally from large loads such as cornice failure or windslab avalanches. On Mar 25, skiers triggered a sz 2.5 in a consistently shallow area at tree line.
The snowpack is stabilizing after last week's cycle, and now we are left with a classic low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
Natural activity has decreased, but the snowpack has a weak base and remains quite suspect. Continue to approach avalanche terrain with suspicion and avoid most large slopes steep enough to slide. Human triggering remains likely in specific areas.
Facets in the bottom 1/3rd of the snowpack are persisting as a weak layer to be respected. These could easily be triggered by cornice falls, or by the weight of a person in isolated areas.
Pockets of Wind Slab can be found in lee areas in the Alpine and at Treeline. Further wind slab development is expected on Wednesday, with wind and snow in the forecast.
Natural activity has decreased, but the snowpack has a weak base and remains quite suspect. Continue to approach avalanche terrain with suspicion and avoid most large slopes steep enough to slide. Human triggering remains likely in specific areas.
Building windslab at tree line and above on lee aspects. It's a continuous problem that requires constant attention in order to ensure your safety and riding quality.
Large cornices on ridge top lee features. Their sheer mass is a problem. Recent cornice failures have been generally small (a few tons or so;) but are consistently triggering large deep persistent slab avalanches in alpine terrain.
The deep persistent slab can be triggered by travelers from shallow or weak locations or naturally from large loads such as cornice failure or windslab avalanches. On Mar 25, skiers triggered a sz 2.5 in a consistently shallow area at tree line.
The snowpack is stabilizing after last week's cycle, and now we are left with a classic low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
Lots of uncertainty in the alpine currently with limited field observations. We should apply a significant margin of safety when assessing terrain, giving convexities and tension areas of the snow pack a wide berth.
Warming temperatures can cause new snow over crusts to quickly become touchy and slide easily as loose wet or moist slab avalanches.
Building windslab at tree line and above on lee aspects. It's a continuous problem that requires constant attention in order to ensure your safety and riding quality.
Large cornices on ridge top lee features. Their sheer mass is a problem. Recent cornice failures have been generally small (a few tons or so;) but are consistently triggering large deep persistent slab avalanches in alpine terrain.
The deep persistent slab can be triggered by travelers from shallow or weak locations or naturally from large loads such as cornice failure or windslab avalanches.
The snowpack throughout the region has a weak base and remains suspect. Approach all avalanche terrain with suspicion and exercise conservative route choices. The&nbsp; natural avalanche cycle has ended but human triggered avalanches are still possible.
The snowpack is stabilizing after last week's cycle, and now we are left with a classic low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
If triggered storm slabs have the potential to step down to deeper layers buried in March or February. Mild temperatures are helping to heal our storm slab problem, as this process occurs the slab properties also increase over any buried weak layer!
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. 
Large cornices on ridge top lee features. Their sheer mass is a problem. Recent cornice failures have been generally small (a few tons or so;) but are consistently triggering large deep persistent slab avalanches in alpine terrain.
The deep persistent slab can be triggered by travelers from shallow or weak locations or naturally from large loads such as cornice failure or windslab avalanches.
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.
The snowpack is stabilizing after last week's cycle, and now we are left with a classic low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
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;
Wind slabs formed by SW winds on Thursday will be difficult to detect under Fridays new snow. Fresh wind slabs will likely form with SW winds forecast for the weekend.
Facets in the bottom 1/3rd of the snowpack are persisting as a weak layer to be respected. These could be triggered by large triggers such as cornice falls and wind slab avalanches.
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.
The snowpack is stabilizing after the last avalanche cycle, and now we are left with a low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
Large cornices on ridge top lee features continue to build with strong SW winds. Their sheer mass is a problem. Recent alpine releases have resulted in large slab avalanches.
The deep persistent slab can be triggered by travelers from shallow or weak locations or naturally from large loads such as cornice failure or windslab avalanches.
Strong&nbsp; SW winds in the alpine have produced wind slabs from recent snow fall. These will be most reactive at upper elevations near ridge features. If triggered they may step down to deep basal weakness.
10 cm of heavy snow with winds gusting to 40 kph will bond poorly to the moist snow surface after yesterdays warm temps.&nbsp; If triggered storm slabs have the potential to step down to deeper layers buried in March or February.
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.
The snowpack is stabilizing after the last avalanche cycle, and now we are left with a low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
Fragile new cornice growth and small fresh windslabs have formed with the recent storm.
This problem is unlikely to disappear.  It can be triggered by large loads like cornice fall or windslab failure.  Human triggering is most likely from shallow spots or on steep unsupported slopes.
20-30 cm of heavy snow with moderate winds have formed storm slabs that need time to bond to the underlying moist snow surface. If triggered, these storm slabs have the potential to step down to deeper layers buried in March or February.
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.
The snowpack is stabilizing after the last avalanche cycle, and now we are left with a low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
New windslab formed by recent SW winds could be reactive and if triggered, could step down to the deep persistent slab.
This problem is unlikely to disappear. It can be triggered by large loads like cornice fall or windslab failure. Human triggering is most likely from shallow spots or on steep unsupported slopes.
The weekend's storm snow has been redistributed into widespread wind slabs in the alpine and open tree-line features. These slabs were reactive to light loads yesterday and will need time to bond to the underlying interface.
New snow over old crusty surfaces will likely produce small natural avalanches with daytime warming and/or solar input.
Wind slabs which formed on Sunday will be difficult to detect. Expect new wind slab development later in the forecast period as temperatures warm and winds increase.
Prolonged solar radiation and rising freezing levels with weaken the snowpack on South and West aspects, especially around steep and rocky areas.
This problem is unlikely to disappear. It can be triggered by large loads like cornice fall or windslab failure. Human triggering is most likely from shallow spots or on steep unsupported slopes.
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.
The snowpack is stabilizing after the last avalanche cycle, and now we are left with a low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
Pay attention to day time warming. Sunny skies and warm temperatures are increasing the avalanche hazard on sun exposed slopes in the afternoon.
Last weekend's storm snow has been redistributed into widespread soft windslab in the alpine down to treeline. These slabs need time to bond to the old snow surface. They may prove more reactive with prolonged solar input.
This problem is unlikely to disappear. It can be triggered by large loads like cornice fall or windslab failure. Human triggering is most likely from shallow spots or on steep unsupported slopes.
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.
The snowpack is stabilizing after the last avalanche cycle, and now we are left with a low probability, high consequence problem. Natural avalanches have mostly ceased, but triggering is still possible - especially from large loads like cornices.
SW winds continue to redistribute snow onto alpine lee slopes forming soft slab. Look for soft slab in the immediate lee of ridges and crossloaded features. Light surface wind effect is widespread above treeline.
This problem is unlikely to disappear. It can be triggered by large loads like cornice fall or wind-slab avalanche. Human triggering is most likely from shallow spots or on steep unsupported slopes.
Expect fresh slab development with snow and wind forecast for Friday.
Cornices are large and continue to build with warm temps and wind. Incoming rain on Friday may be the trigger that causes cornices to fail. These will have plenty of new snow to entrain and may trigger wind slabs. Be aware of what is above you.
Dry snow persists on north aspects at upper elevations, watch for loose dry avalanches in steep north facing terrain.
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.
April is cornice season, and we are getting regular reports of cornices failing. Mature cornices can propagate much further than you expect, so give them a wide margin when traveling on ridges and get up early and hurry if you must travel below them.
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.
Soft slabs overlie a series of strong crusts in most areas. As freezing levels rise this slab is expected to be increasingly reactive. These slabs will be deepest in areas that have been wind-loaded.
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.
This problem will persist. It can be triggered by large loads such as cornice failures. Triggering is most likely from shallow spots or on steep unsupported slopes. Friday's warm temperatures and snow may be pushing it closer to the tipping point.
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.
April is cornice season, and we are getting regular reports of cornices failing and triggering deep slabs. Mature cornices can propagate much further than you expect, so give them a wide margin when traveling on ridges. Travel early.
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.
Incoming snow and wind will likely form slabs. These will become particularly touchy if snowfall turns to rain.
New snow over old crusty surfaces will likely produce small natural avalanches with daytime warming or when rainfall commences.
Cornices are large and continue to build with warm temps and wind. Incoming rain/snow on Friday may be the trigger that causes cornices to fail, which may in turn trigger deep persistent weak layers in large open terrain.
20cm of moist snow overlies a crust everywhere other than high elevation N'ly aspects. Winds have been shifting directions and will have formed deeper pockets on lee slopes. Rising freezing levels and continued loading will make them more reactive.
Cornices dropping and smaller avalanches have recently triggered deep, persistent weak layers. The resulting avalanches have been observed to run well into the valley bottoms. With continued loading during the storm likelihood will increase.
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 persist. Activity has subsided but with all the variables beyond our control, keep this on your radar. It can be triggered by large loads such as cornice failures or human triggered from shallow spots or steep unsupported slopes.
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.
April is cornice season, and we are getting regular reports of cornices failing and triggering deep slabs. Mature cornices can propagate much further than you expect, so give them a wide margin when traveling on ridges.
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.
30cm of moist snow overlies a crust everywhere other than high elevation N'ly aspects. Winds have been shifting directions and will have formed deeper pockets on lee slopes. Rising freezing levels and continued loading will make them more reactive.
Cornices dropping and smaller avalanches have recently triggered deep, persistent weak layers. The resulting avalanches have been observed to run well into the valley bottoms. With continued loading during the storm likelihood will increase.
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.
This problem will persist. Activity has subsided but, need to keep this on your radar. It can be triggered by large loads such as cornice failures or human triggered from shallow spots or steep unsupported slopes.
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.
April is cornice season, and we are getting regular reports of cornices failing and triggering deep slabs. Mature cornices can propagate much further than you expect, so give them a wide margin when traveling on ridges.
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.
April is cornice season, and we are getting regular reports of cornices failing and triggering deep slabs. Mature cornices can propagate much further than you expect, so give them a wide margin when traveling on ridges.
30cm of moist snow overlies a crust everywhere other than high elevation N'ly aspects. Winds have been shifting directions and will have formed deeper pockets on lee slopes. These slabs are reactive to human triggering.
Cornices and smaller avalanches have recently triggered deep, persistent weak layers. The resulting avalanches have been observed to run well into the valley bottoms. With daytime warming, the likelihood will increase.
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.
Watch for isolated pockets of slab in alpine lee and crossloaded areas.
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.
April is cornice season, and we are getting regular reports of cornices failing and triggering deep slabs. Mature cornices can propagate much further than you expect, so give them a wide margin when traveling on ridges.
Sunny skies tomorrow may induce a solar cycle on South-East through West aspects at treeline and below.
This problem will persist. Activity has subsided but, need to keep this on your radar. It can be triggered by large loads such as cornice failures or human triggered from shallow spots or steep unsupported slopes.
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.
April is cornice season, and we are getting regular reports of cornices failing and triggering deep slabs. Mature cornices can propagate much further than you expect, so give them a wide margin when traveling on ridges.
Recent storm snow and potential for solar radiation tomorrow may induce loose wet avalanches on SE through W aspects tomorrow at treeline and below.
New storm snow needs time to bond to the underlying firm temp crusts. Where winds have redistributed it in lee features, expect the slabs to be reactive to light human loads, especially at ridge-top, over convexities, and large planar alpine slopes.
The snowpack is slowly gaining strength, but the weak basal facets continue to produce sudden collapse results and can produce large avalanches with large triggers. Stick to planar, supported slopes with a deeper snowpack if entering steep terrain.
Another 5-10cm of snow is forecast for Tuesday so we expect to see sluffing out of steep alpine and tree line terrain as this new snow arrives. We may also see a few small wind slabs near ridge crests so enter lee loaded terrain with caution.
The snowpack is slowly gaining strength however the basal facets remain a concern in thin snowpack areas and large triggers could create big avalanches on these facets.  Use caution in steep terrain and avoid thin snowpack areas when possible. 
Another 10-15cm of snow is forecast on Tuesday. If this arrives we expect to see sluffing steep alpine and tree line terrain, and possibly some isolated wind slabs in immediate lee areas of the alpine. Use caution if entering lee loaded areas.
The deep instability could be triggered by large loads such as a cornice failure or a surface avalanche. Human triggering is most likely from shallow spots or on steep unsupported slopes.
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. 
In most areas the storm slab overlies a crust, which provides a good sliding layer if the slab is triggered. On lee features that have been windloaded, deeper pockets may be more reactive to human triggering.
The snowpack is slowly gaining strength, but the weak basal facets continue to produce sudden collapse results and can produce large avalanches with large triggers. Stick to planar, supported slopes with a deeper snowpack if entering steep terrain.
The snowpack is slowly gaining strength however the basal facets remain a concern in thin snowpack areas and large triggers could create big avalanches on these facets. Use caution in steep terrain and avoid thin snowpack areas when possible.
The deep instability could be triggered by large loads such as a cornice failure or a surface avalanche. Human triggering is most likely from shallow spots or on steep unsupported slopes.
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.
Storm slabs are most volatile where they overlie a crust on solar aspects. Recent wind loading has redistributed the storm snow, leaving behind isolated pockets of wind slabs. lower elev should have seen a crust recovery last night.
The snowpack is gaining strength, but the weak basal facets continue to produce sudden collapse results and can produce large avalanches with large triggers. Stick to planar, supported slopes with a deeper snowpack if entering steep terrain.
The snowpack is gaining strength however the basal facets remain a concern in thin snowpack areas and large triggers could create big avalanches on these facets. Use caution in steep terrain and avoid thin snowpack areas when possible.
The deep instability could be triggered by large loads such as a cornice failure or a surface avalanche. Human triggering is most likely from shallow spots or on steep unsupported slopes.
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.
Cornices remain impressively large, and will increase in size and sensitivity with forecast snow, warmth and wind on Thursday.
Moderate gusting to strong winds from the NE this morning and last night are building wind slabs in the alpine and at the upper end of treeline. Winds are forecast to switch today to the SW and stay in the moderate range.
Storm slabs are most volatile where they overlie a crust on solar aspects. 50+cm of new snow accompanied by warm temperatures and wind fell over the last week in the alpine and upper end of tree line.
The snowpack is gaining strength, but the weak basal facets continue to produce sudden collapse results and can produce large avalanches with large triggers. Stick to planar, supported slopes with a deeper snowpack if entering steep terrain.
The deep instability could be triggered by large loads such as a cornice failure or a surface avalanche. Human triggering is most likely from shallow spots or on steep unsupported slopes.
Winds have switched around to the SW and are building and redistributing surface wind slabs in alpine and tree-line lee features. These slabs may be quite sensitive to trigger if they sit upon a firm sun or temperature crust.
There are multiple crusts in the upper metre of the snowpack, each providing a smooth sliding layer if avalanches dig down and trigger the deeper layers. Solar aspects are the biggest concern with day-time warming and a powerful April sun.
The deep instability could be triggered by large loads such as a cornice failure or a surface avalanche. Human triggering is most likely from shallow spots or on steep unsupported slopes.
The snowpack is gaining strength, but the weak basal facets continue to produce sudden collapse results and can produce large avalanches with large triggers. Stick to planar, supported slopes with a deeper snowpack if entering steep terrain.
Winds have switched around to the SW and are redistributing snow and building wind slabs in alpine and tree-line lee features. These slabs may be quite sensitive to trigger if they sit upon a firm sun or temperature crust.
The snowpack is gaining strength, but the weak basal facets continue to produce sudden collapse results and can produce large avalanches with large triggers. Stick to planar, supported slopes with a deeper snowpack if entering steep terrain.
The deep instability could be triggered by large loads such as a cornice failure or a surface avalanche. Human triggering is most likely from shallow spots or on steep unsupported slopes.
Storm Slab pockets exist lee to West and SW winds, especially immediately behind ridge crests, outcrops, and islands of trees (&quot;immediate lees&quot;). It is possible a person or solar radiation could trigger these. This problem will lessen over time.
Cornices growth has continued. Periods of intense solar radiation will increase the chance of these failing naturally. Of course, they are most likely to break if walked upon.
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.
Natural avalanche activity has tapered, but it is still possible to trigger a large avalanche in this layer. Slab avalanches have been most commonly triggered ~ 2400m where the Nov. 23rd crust fades out.
Natural avalanche activity has tapered, but it is still possible to trigger this layer if you hit it in the right spot. We are most concerned about this above ~ 2400m where the Nov. 23rd crust fades out.
wind slabs continue building at ridge tops and if triggered, has the potential to step down to the deeper instability.
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!
Wind slabs continue building at ridge tops and if triggered, has the potential to step down to the deeper instability.
Natural avalanche activity has tapered, but concern remains for human triggering of the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.
Up to 50cm of recent snow is available for transport TL and above. So far only light, gusting moderate, SW winds have created soft slabs and wind effect but watch for this to change as winds shift to the NW Sunday and then increase on Monday.
Natural avalanche activity has tapered, but concern remains for human triggering of the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.
Up to 50cm of recent snow is available for transport TL and above. So far only light, gusting moderate, SW winds have created soft slabs and wind effect but watch for this to change as winds shift to the NW Sunday and then increase on Monday.
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!
Natural avalanche activity has tapered, but concern remains for human triggering of the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.
Up to 50cm of recent snow is available for transport TL and above. So far only light, gusting moderate, SW winds have created soft slabs and wind effect but watch for this to change as the winds increase from the NW on Monday.
Natural avalanche activity has tapered, but concern remains for human triggering of the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.
Up to 50cm of recent snow is available for transport TL and above. So far only light, gusting moderate, SW winds have created soft slabs and wind effect but watch for this to change as the winds increase from the NW on Monday.
Wind slabs are present on lee aspects.&nbsp; Bond strength of these slabs to the snowpack below is uncertain.&nbsp;
50cm of low density storm snow is been redistributed by moderate winds in the alpine and exposed areas at treeline. Winds have been variable over the past several days but the predominate flow is now from the NW, moderate gusting to strong at times.
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.
Natural avalanche activity has tapered, but concern remains for human triggering on the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.
Natural avalanche activity has tapered, but concern remains for human triggering on the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.
Wind slabs are present on lee aspects. Bond strength of these slabs to the snowpack below is uncertain.
50cm of low-density storm snow is been redistributed by moderate winds in the alpine and exposed areas at treeline. Wind slabs have been quite variable and will be most volatile on unsupported, convex terrain features.
1681A555">Solar warming today could trigger loose dry avalanches on steep solar aspects. This avalanche problem will peak on Thursday and Friday, with freezing levels forecasted to reach 3000m!
Natural avalanche activity has tapered, but concern remains for human triggering on the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.
Wind slabs are present on lee aspects. Bond strength of these slabs to the snowpack below is uncertain.
Natural avalanche activity has tapered, but concern remains for human triggering on the weak snow on this layer. Previously, slab avalanches have been triggered above ~ 2400m where the Nov. 23rd crust fades out. Shallow alpine areas warrant caution.
Last week's storm snow has been redistributed by moderate winds at and above treeline. These slabs may become more reactive with solar input and rising freezing levels.
Solar input and rising freezing levels are expected to result in loose dry slides on steeper solar aspects today. This problem will peak on Thursday and Friday with freezing levels reaching mountain top.
Natural avalanche activity has tapered however, shallow alpine areas warrant caution. Also, forecasters are uncertain as to how the Oct 31 layer will react to rising freezing levels on Thursday.
Natural avalanche activity has tapered however, shallow alpine areas warrant caution. Also, forecasters are uncertain as to how the Oct 31 layer will react to rising freezing levels on Thursday.
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.
Wind slabs are present on lee aspects. Bond strength of these slabs to the snowpack below is uncertain. The warm temperatures on Thursday will likely trigger avalanches which will step down to deeper layers in the snowpack
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.
Natural avalanche activity has tapered however, shallow alpine areas warrant caution. Uncertainty around the Oct 31 layer remains especially with the temperature inversion changing conditions at upper elevations. Be wary of warming in start zones.
Natural avalanche activity has tapered however, shallow alpine areas warrant caution. Uncertainty around the Oct 31 layer remains especially with the temperature inversion changing conditions at upper elevations. Be wary of warming in start zones.
Solar triggering of loose dry avalanches is occurring in steep terrain. The entraining snow may have the volume to knock ice climbers off their stances. 
Solar triggering is possible on steep south facing slopes creating large full path avalanches.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">This is day 2 of a strong </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/20171208%20Inversion.jpg" target="_blank"><span class="s_9255B882">alpine temperature inversion</span></a><span class="s_AA239A9B"> and very little cloud cover at higher elevations. Solar input and warm temps will cause loose slides on steep solar aspects. Larger slides may trigger early-season persistent crust layers.
Solar triggering of loose avalanches is occurring in steep terrain. The entraining snow has enough volume to knock ice climbers off or bury you in a terrain trap. Reactivity increases with afternoon sun.
Solar triggering is possible on steep south facing slopes creating large avalanches.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">The strong </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/20171208%20Inversion.jpg" target="_blank"><span class="s_9255B882">alpine temperature inversion</span></a><span class="s_AA239A9B"> continues bringing above zero temps to the alpine. The warm temps, with a nudge from strong solar input, will cause loose slides on steep S &amp; W aspects.  Rock outcrops will heat up fastest with the sun's rays.
Solar triggering of loose avalanches may occur in steep terrain. The entraining snow may have enough volume to knock ice climbers off or bury you in a terrain trap. Reactivity increases with afternoon sun.
Solar triggering is possible on steep south facing slopes.
A temperature inversion continues to bring above zero temps to the alpine. The warm temps, with a nudge from strong solar input, can cause loose avalanches on steep S and W aspects. Rock outcrops will heat up fastest with the sun's rays.
Solar triggering is possible on steep south facing slopes.
A temperature inversion continues to bring above zero temps to the alpine. The warm temps, with a nudge from strong solar input, can cause loose avalanches on steep S and W aspects. Rock outcrops will heat up fastest with the sun's rays.
Heavy loads , like&nbsp; natural cornice releases might trigger this deep instability.
A temperature inversion continues to bring above zero temps to the alpine. The warm temps, with a nudge from strong solar input, can cause loose avalanches on steep S and W aspects. Rock outcrops will heat up fastest with the sun's rays.
Heavy loads , like natural cornice releases might trigger this deep instability.
Limited daytime heating and solar input today will minimize the likelihood of natural avalanches. Watch your sluff in steep unsupported terrain, and above terrain traps.
Heavy loads , like natural cornice releases might trigger this deep instability.
Heavy loads , like natural cornice releases might trigger this deep instability.
After a long dry spell, 10cm of new snow has fallen on a crust on solar aspects and widespread surface hoar. The surface hoar layer will be reactive today around treeline where buried crystals are large. Small skier triggered slides are very likely.
Heavy loads might trigger this deep instability.
After a long dry spell, 10cm of new snow has fallen on a crust on solar aspects and widespread surface hoar. Small skier triggered slides are very likely today and will run fast &amp; far!
Heavy loads like a cornice failure might trigger this deep instability.
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</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!
Incoming new snow and wind will initially cause small sluffs out of steep terrain.
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.
Strong NE winds will easily transport the 25 cm of recent snow into windslabs on S and W aspects (backwards from usual). Avoid freshly wind loaded rolls and slopes and study the snowpack distribution from this upslope storm.
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.
Strong NE winds will easily transport the 25 cm of recent snow into windslabs on S and W aspects (backwards from usual). Avoid freshly wind loaded rolls and slopes and study the snowpack distribution from this upslope storm.
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.
Moderate gusting to strong N-NE winds have been forming reverse loaded windslab in wind exposed areas at and above treeline.  These slabs may have surface hoar or crust underneath leading them to be sensitive to human triggering.
60cm of new snow sits on a variety of weak layers. Expect an increase in avalanches as the new snow settles and is moved around by the wind.
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.
Even with the low danger rating, still be vigilant for small pockets of soft windslab particularly at upper elevation ridgetops.
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.
Mod gusting to strong N-NE winds Tuesday formed reverse loaded windslab in wind exposed areas at and above treeline. These slabs may have surface hoar or crust underneath leading them to be sensitive to human triggering.
There has been very little new snow since the end of November (15cm). This drought interface, down 10cm, is the layer of concern. Remain vigilant by avoiding small pockets of windslab particularly at upper elevation ridge tops.
Strong winds have scoured wind exposed terrain down to valley bottom. Wind slab could likely be found on immediate lee slopes.
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.
20-40km/hr N-NE winds are forming reverse loaded wind slab in wind exposed areas at and above tree line. These slabs may have surface hoar or crust underneath leading them to be sensitive to human triggering.
There has been very little new snow since the end of November (15cm). This drought interface, down 10cm, is the layer of concern. Remain vigilant by avoiding small pockets of windslab particularly at upper elevation ridge tops.
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.
Moderate variable winds are forming reverse loaded wind slabs in wind exposed areas in the Alpine and at tree line. These slabs may have surface hoar or crust underneath leading them to be sensitive to human triggering.
Small amounts of recent snow has been blown into thin windslabs over the Dec 18 drought layer. These slabs will be found mainly over crusts or wind effect however surface hoar and facets were buried as well and would warrant more caution.
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.
15-35km/hr variable winds are forming pockets of wind slab in exposed areas in the alpine and at tree line. These slabs may have surface hoar or crust underneath, leading them to be sensitive to human triggering.
Small amounts of recent snow has been blown into thin windslabs over the Dec 18 drought layer. These slabs will be found mainly over crusts or wind effect however surface hoar and facets were buried as well and would warrant more caution.
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. So far they are still very small, but stay aware of this in confined gullies or when skiing steep terrain.
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. So far they are still very small, but be aware of this in confined gullies like ice climbs or in steep ski terrain.
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">
Small amounts of recent snow has been blown into thin windslabs over the Dec 18 drought layer. These slabs will be found mainly over crusts or wind effect however surface hoar and facets were buried as well and would warrant more caution.
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. So far they are still very small, but stay aware of this in confined gullies or when skiing steep terrain.
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. So far they are still very small, but stay aware of this in confined gullies or when skiing steep terrain.
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.
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. So far they are still very small, but stay aware of this in confined gullies or when skiing steep terrain.
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. So far they are still very small, but be aware of this in confined gullies or when skiing steep terrain.
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.
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. Manage your sluffs if skiing steep terrain and heads up for big spindrift if climbing in gullies.
The cold temperatures are facetting the surface snow and allowing loose dry avalanches to run further than expected in steep terrain. Manage your sluffs if skiing steep terrain and heads up for big spindrift if climbing in gullies.
Variable winds formed wind slab in the alpine and exposed areas at tree line on all aspects. These slabs may have surface hoar or crust underneath, small lenses may be sensitive to human triggering.
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.
The cold temperatures have facetted the surface snow, and once initiated can travel far.&nbsp; Manage your sluffs if skiing steep terrain and heads up for big spindrift if climbing in gullies.
The cold temperatures have facetted the surface snow, and once initiated can travel far. Manage your sluffs if skiing steep terrain and heads up for big spindrift if climbing in gullies.
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.
The cold temperatures have facetted the surface snow, and once initiated these sluffs can pick up mass and travel far. A heads up for big sluffs if you are climbing in gullies with steep terrain above, or skiing steep lines.
The cold temperatures have facetted the surface snow, and once initiated these sluffs can pick up mass and travel far. A heads up for big sluffs if you are climbing in gullies with steep terrain above, or skiing steep lines.
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 cold temperatures have facetted the surface snow, and once initiated these sluffs can pick up mass and travel far. A heads up for big sluffs if you are climbing in gullies with steep terrain above, or skiing steep lines.
The cold temps have facetted the surface snow, and once initiated these sluffs can pick up mass and travel far. A heads up for big sluffs if you are climbing in the bigger gully features in Field with steep terrain above, or skiing steep lines.
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 cold temperatures have facetted the surface snow, and once initiated these sluffs can pick up mass and travel far. A heads up for big sluffs if you are climbing in gullies with steep terrain above, or skiing steep lines.
The cold temperatures have facetted the surface snow, and once initiated these sluffs can pick up mass and travel far. A heads up for big sluffs if you are climbing in gullies with steep terrain above, or skiing steep lines.
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 cold temperatures have facetted the surface snow, and once initiated 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.
The cold temperatures have facetted the surface snow, and once initiated 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.
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.
We may see a natural loose dry cycle on steep solar aspects today, with solar radiation and an inversion. The combination of a loose sluff, plus a skier or rider could be the load for a step-down slab avalanche to the Dec 15th persistent weak layer.
The cold temperatures have facetted the surface snow, and once initiated 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.
The cold temperatures have facetted the surface snow, and once initiated 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.
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.
We may see a natural loose dry cycle on steep solar aspects if the sun does come out today.
Expect point release sluffing from steep terrain, particularly mid-afternoon.
Be aware of steep gully features that may be loaded enough to release a small slab.
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.
We may see a natural loose dry cycle on higher elevation steep solar aspects if the sun does come out today. These may be triggered naturally or from skier traffic.
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
Expect point release sluffing from steep terrain.
Be aware of steep gully features that may be loaded enough to release a small slab.
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
tyle: Normal;font-weight: normal;font-size: 13px;color: #000000; } 
</style><p class="p_CC664AAA"><span class="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.</span><span class="s_AA239
Be aware of steep gully features that may be loaded enough to release a small slab.
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.
Previous new snow is being moved by the chinook winds, continuing snowfall and wind over the next few days will likely make the problem worse.
Loose snow will continue to be a problem in steep rocky areas and gullies until the facets round out a bit.
Previous new snow is being moved by the chinook winds, continuing snowfall and wind over the next few days will likely make the problem worse.
="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.
Be aware of steep gully features that may be loaded enough to release a small slab.
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.
Recent snow is being moved around by the SW winds and forming thin wind slabs in immediate lee areas. These slabs can fail on the either the weak facets or the Dec 15 layer, and have been triggered by climbers and skiers in the last few days.
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.
Several layers of wind slab exist from multiple wind events - reactivity may vary from site to site.
="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.
Recent snow is being moved around by the SW winds and forming thin wind slabs in immediate lee areas. These slabs can fail on the either the weak facets or the Dec 15 layer, and have been triggered by climbers and skiers in the last few days.
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.
Recent snow is being moved around by the SW winds and forming thin wind slabs in immediate lee areas. These slabs can fail on the either the weak facets or the Dec 15 layer, and have been triggered by climbers and skiers in the last few days.
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.
Recent snow is being moved around by the SW winds and forming thin wind slabs in immediate lee areas. These slabs can fail on the either the weak facets or the Dec 15 layer, and have been triggered by climbers and skiers in the last few days.
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.
Thin old windslabs remain a concern TL and above where they sit over weak faceted snow and surface hoar. While these are spotty and small at TL, these limit confidence in the alpine with the potential for larger slabs in bigger, more uniform terrain.
="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.
New and building windslab is sitting on a weak, and typically reactive interface on exposed alpine and TL features. Bigger, uniform, and isolated open features have the potential to trigger large avalanches and should be treated very cautiously.
="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.
Recent and forecasted snow will be moved around by the SW winds and forming fresh wind slabs in the alpine. These slabs can fail on the the Dec 15 interface which is showing easy to moderate shears.
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 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.
New snow covers pockets of old wind slabs on a weak interface in exposed alpine and TL features. Bigger, uniform features have the potential to trigger large avalanches and should be treated with caution.
="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.
Recent snow will be moved around by the SW winds and forming fresh wind slabs in the alpine. These slabs &amp; loading may be enough to overload Dec 15 interface which is showing easy to moderate shears. but the balance has not yet tipped...
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.
There is a dangerous weak layer down 30-40 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.
New snow covers pockets of old windslab sitting on weak, faceted snow that lacks strength, and may fail, to midpack depths. Treat all wind exposed areas with care but approach larger, uniform features and thin areas should be treated with caution.
The new snow has already formed thin, spotty slabs even with the limited amount of wind we have seen so far. These slabs sit on freshly buried, weak facets and surface hoar in some areas. Watch for these slabs to develop with more wind Saturday.
="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 30-40 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.
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.
New snow covers pockets of old slab sitting on weak, faceted snow that lacks strength, and may fail, to mid-pack depths. Treat all wind exposed areas with care but approach larger, uniform features and thin areas with caution.
The new snow has already formed thin, spotty slabs even with the limited amount of wind we have seen so far. These slabs sit on freshly buried, weak facets and surface hoar in some areas. Watch for these slabs to develop with more wind Saturday.
="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.
New snow covers pockets of old slab found in exposed areas that sit on weak, faceted snow that lacks strength, and may fail, to mid-pack depths. Treat all wind exposed areas with care but approach larger, uniform features and thin areas with caution.
The new snow has been redistributed into thin, spotty slabs in exposed areas. These slabs sit on freshly buried, weak facets and surface hoar in some areas. Triggering one of these slabs may provide enough load to trigger the deeper persistent slab.
="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.
New wind slabs have formed during the last 24 hrs in the alpine and near ridge crests at treeline. Watch for the changing feel of the snow under your feet and be wary of areas with denser surface snow over weaker snow.
There is a dangerous weak layer down 30-40 cm and the slab overlying it is becoming stiff enough for avalanches to occur. Be very careful with this layer and travel conservatively even if you observe no avalanches.
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.
New wind slabs were forming at treeline and in the alpine Saturday with the moderate to strong West winds and warmer temperatures. Watch for the changing feel of the snow under your feet and be wary of areas with denser surface snow over weaker snow.
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.
Wind slabs have formed in the alpine and near ridge crests at treeline. Watch for the changing feel of the snow under your feet and be wary of areas with denser surface snow over weaker snow.
This layer continues to linger in forecasters minds. Easy test results and report of significant whumps and cracks show the potential for this to be a dangerous problem. Be very careful with this layer and travel conservatively.
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.
Watch for the changing feel of the snow under your feet and be wary of areas with denser surface snow over weaker snow.
Pockets of old, buried slab are found in exposed areas. These sit on weak, faceted snow that lacks strength, and may fail, to mid-pack depths. Treat all wind exposed areas with care but approach larger, uniform features and thin areas with caution.
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 recent snow was redistributed into thin, spotty slabs in exposed areas. These slabs sit on freshly buried, weak facets and surface hoar in some areas. Triggering one of these slabs may provide enough load to trigger the deeper persistent slab.
A temperature inversion kept alpine temperatures near or above zero degrees over night, the snowpack will weaken quickly with the suns effect. A natural avalanche cycle was observed yesterday afternoon from steep, rocky terrain on solar aspects.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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">
This layer continues to be the cause of much uncertainty with forecasters. Easy test results and report of significant whumps and cracks show the potential for this to be a dangerous problem. It is present and reactive in some areas, not in others.
This layer is a concern mainly at treeline. Easy test results and reports of significant whumps and cracks show the potential for this to be a dangerous problem. Exercise a high degree of caution on uniform open features at treeline.
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 recent snow was redistributed into thin, spotty slabs in exposed areas. These slabs sit on freshly buried, weak facets and surface hoar in some areas.
Isolated slab avalanches to size 2 were reported by field teams, which were triggered by loose snow avalanches from the cliffs above the start zones.
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.
Snow was redistributed into thin, spotty slabs in exposed areas. These slabs sit on freshly buried, weak facets and surface hoar in some areas. 
Isolated slab avalanches to size 2 were reported by field teams on Monday. They were triggered by loose snow avalanches from the cliffs above and solar input.
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.
This layer continues to be the cause of much uncertainty with forecasters - we think its bad, but yet it has not yet produced many large avalanches. We remain uneasy about it despite indications of generally good conditions.
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.
10cm of storm snow accompanied by mod-strong S'ly winds have formed fresh storm slab at and above treeline. These slabs reside on a variety of surfaces such as small surface hoar, temperature crust and sun crust.
This layer continues to be the cause of much uncertainty with forecasters - we think its bad, but yet it has not yet produced many large avalanches. We remain uneasy about it despite indications of generally good conditions.
New snow and accompanying winds usually create windslabs near ridge crests on lee slopes.
New snow and moderate to strong SW winds will rapidly build new windslabs. Forecasted amounts are uncertain, and hazard will be directly related to the amount of snow that arrives.
Isolated slab avalanches to size 2 were reported by field teams on Monday. They were triggered by loose snow avalanches from the cliffs above and solar input. The concern is that additional load may increase activity on midpack weak layers.
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.
New snow and accompanying winds have created windslabs at alpine and treeline elevations. Due to variable winds in the alpine expect the spacial distribution of this problem to be widespread.
This layer continues to be the cause of much uncertainty with forecasters - we think its bad, but yet it has not yet produced many large avalanches. We remain uneasy about it despite indications of generally good conditions.
Recent snow and accompanying winds have created windslabs at alpine and treeline elevations. Due to variable winds in the alpine expect the spacial distribution of this problem to be widespread.
The Dec 15 layer continues to cause some uncertainty with forecasters. Few avalanche observations have been reported on this instability, though widespread cracking and whumphing is still occurring when traveling in the backcountry.
Recent winds and snow have formed slabs in immediate lees.&nbsp; Pay attention to the surface texture and local wind transport as these will be the biggest indicator of their formation.
The Dec 15 layer continues to cause some uncertainty with forecasters. Few avalanche observations have been reported on this instability, though widespread cracking and whumphing is still occurring when traveling in the backcountry.
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.
There are 3 distinct surface hoar layers in the top 40cm of the snowpack. These layers are expected to become more reactive to natural and human triggers with the additional snow load leading into the weekend.
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.
There are 3 distinct surface hoar layers in the top 40cm of the snowpack. These layers are expected to become more reactive to natural and human triggers with the additional snow load leading into the weekend.
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.
There are 2 distinct surface hoar layers in the top 40cm of the snowpack. These layers are expected to become more reactive to natural and human triggers with the additional snow load leading into the weekend.
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.
Previous strong Southerly winds combined with recent new snow has led to surface slab development. This buries the Jan 16 surface hoar layer which is widespread and found down 30cm. Slabs triggered over this weak layer could propagate far.
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.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">Previous strong south winds combined with recent new snow has built surface slab. This buries the Jan 16 surface hoar which is widespread and found down 40cm. Slabs triggered over this </span><a href="https://www.facebook.com/ParksMountainSafety/videos/1546933272023323/" target="_blank"><span class="s_9255B882">weak layer</span></a><span class="s_AA239A9B"> could propagate far and trigger deeper layers.
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.
Anticipate and be aware of wind-loaded pockets at tree-line and above.
No large avalanches have been observed on the Dec. 15 facet layer but it continues to be a layer of worry for the forecasters.
New snow and wind are have created new windslabs on lee slopes at alpine and treeline elevations. Due to variable winds in the alpine expect the spacial distribution of this problem to be widespread.
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.
Recent snow and wind are have created new windslabs on lee slopes at alpine and treeline elevations. Due to variable winds in the alpine expect the spacial distribution of this problem to be widespread.
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.
Recent snow and wind are have created new windslabs on lee slopes at alpine and treeline elevations. The winds have been from many different directions over the past few days and have formed these slabs on numerous aspects. 
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.
Previous wind events with only light snow has buried two SH layers. New surface windslab sits on the Jan 17 FC/SH. This builds on a now buried windslab over the Jan 7 SH for a total slab size of 20 to 40 cm. 
Recent snow and wind are have created new windslabs on lee slopes at alpine and treeline elevations. The winds have been from many different directions over the past few days and have formed these slabs on numerous aspects.
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.
Recent winds and snow have formed wind slabs in immediate lee areas and caused sluffing in steep rocky terrain. Pay attention to the surface texture and local wind transport patterns as these will be the biggest indicator of the wind slab problem.
The Dec 15 surface hoar/facet layer continues to cause concern with forecasters. Only a few avalanche observations have been reported on this layer recently, but widespread cracking and whumphing is still occurring when traveling in the back country.
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. 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
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
Well preserved surface hoar has been found in several treeline locations in the Icefields area. Shear tests were easy failures 35cm deep on this layer.
This layer is primarily weak facets and had easy failures at treeline in test profiles today down 40 to 50cm.
Small inputs of fresh storm snow with southwesterly winds continue to build small lenses of windslab in sheltered lee features.
Storm slabs will be most prevalent in areas exposed to the wind and steep unsupported convexities, where there's tension on the snowpack. Storm slabs triggered could step down to deeper 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 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
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
This problem slab is made up of 3 significant interfaces. From top down, Jan 18 FC, dwn 15cm. Jan 7 FC/SH, dwn 20, and finally the Dec 18th interface 30 to 50cm down. All interfaces seem to be slowly healing but, inconsistent sensitivity to triggers. 
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
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
This problem is made up of 3 significant interfaces in the top 30-50cm of the snowpack.  All interfaces seem to be slowly healing but have shown recent sensitivity to light loads in isolated locations.
Soft 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.
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.
This problem is made up of 3 significant interfaces in the top 30-50cm of the snowpack. All interfaces seem to be slowly healing but have shown recent sensitivity to light loads in isolated locations.
Last week's storm snow with southwesterly winds will continue to build layers of windslab in lee features at ridge crests and open areas at TL and above.
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. Avalanches are occurring on these layers
With up to 75cm of snow over the past 9-days there is plenty of wind slab development available to be blown into touchy windslabs which should be anticipated in alpine and treeline areas.
20 cm of new snow overnight and strong winds triggered a natural avalanche cycle today. Many avalanches failed as windslabs and stepped down to the deeper persistent weak layers.
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.
Recent moderate southerly winds have redistributed storm snow into wind slab. The slab will be most sensitive in lee areas at ridge line and exposed areas at tree line. If triggered, the slab could step down to deeper weak layers.
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. Avalanches are occurring on these layers
With up to 75cm of snow over the past 9-days there is plenty of wind slab development available to be blown into touchy windslabs which should be anticipated in alpine and treeline areas.
Lots of recent new snow and winds have created touchy wind slabs in lees.&nbsp; Yesterday, an avalanche cycle saw many avalanches failing as windslabs and then stepping down to the deeper persistent weak layers
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.
This problem is made up of 3 significant interfaces in the top 30-50cm of the snowpack and deeper in isolated wind loaded locations. These slabs have been active to skier testing and explosive control work  producing a few very significant results.
Last week's storm snow with southwesterly winds has built soft slabs in open features. These were reactive Thursday, failing as small sluffs out of cliff terrain hit the slope.
Previous moderate southerly winds have redistributed storm snow into pockets of wind slab. The slab will be most sensitive in lee areas at ridge line and exposed areas at tree line. If triggered, the slab could step down to deeper weak layers.
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.
This problem is made up of 3 significant interfaces in the top 30-50cm of the snowpack but may be seen deeper in wind loaded locations. These slabs have been active to skier testing and explosive control work producing a few very significant results.
Last week's storm snow, combined with southwesterly winds, has built soft slabs in open features. These slabs failed when small sluffs, out of very steep lee terrain, hit the slope.
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.
Recent winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches and small cornice failures. These slabs are starting to bond but can still be triggered and may step down to persistent layers.
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.
Recent winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches and small cornice failures. These slabs are starting to bond but can still be triggered and may step down to persistent layers.
Moderate southerly winds have redistributed storm snow into pockets of wind slab. The slab will be most sensitive in lee areas at ridge line and exposed areas at tree line. If triggered, the slab could step down to deeper weak layers.
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.
This problem is made up of 3 significant interfaces in upper snowpack. Incoming new snow may overload these layers, which have recently been reactive to skier testing and explosive control work, producing a few very significant results.
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.
Recent winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches and small cornice failures. These slabs are starting to bond but can still be triggered and may step down to persistent layers.
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.
Recent winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches and small cornice failures. These slabs are starting to bond but can still be triggered and may step down to persistent layers.
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.
Recent winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches and small cornice failures. The slabs will be building Monday night and if triggered, may step down to persistent layers.
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.
Recent wind and new snow have formed slabs in lee areas of alpine and treeline terrain, and caused natural avalanches. These slabs are being loaded as the storm intensifies. If triggered these slabs may step down to persistent layers.
Incoming new snow and wind will build fresh storm slabs.
This problem is made up of 3 significant interfaces in the upper snowpack. Incoming new snow may overload these layers, which have recently been reactive to skier testing and explosive control work, producing a few very significant results.
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.
Recent winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches. The slabs are plump and ripe for triggering, and will likely step down to persistent weak layers.
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 winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches. The slabs are plump and ripe for triggering, and will likely step down to persistent weak layers.
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.
Recent winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches. The slabs are plump and ripe for triggering, and will likely step down to persistent weak layers.
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 winds and new snow have formed slabs in leeward areas of alpine and treeline terrain, and caused natural avalanches. The slabs are plump and ripe for triggering, and will likely step down to persistent weak layers.
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.
With plenty of loose snow around, incoming wind will form slabs quickly, adding to existing ones. The slabs are plump and ripe for triggering, and will likely step down to persistent weak layers.
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.
Control work produced several results on this layer, particularly in the alpine where storm slabs were able to entrain enough mass to step down to mid-pack instabilities.
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.
With plenty of loose snow around, incoming wind will form slabs quickly, adding to existing ones. The slabs are plump and ripe for triggering, and will likely step down to persistent weak layers.
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.
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.
Control work on Wednesday produced several results on this layer, particularly in the alpine where storm slabs were able to entrain enough mass to step down to mid-pack instabilities.
Cornices will remain touchy until temperature stabilize on Sunday.
Windslabs expected to build with 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. 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.
15-25cm of new snow has developed a reactive storm slab at higher elevations, If triggered this layer has the potential to step down to deeper instabilities. 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.
20-40cm of recent storm snow has developed a reactive storm slab at higher elevations, numerus skier triggered avalanches have been reported on this layer. Stick to non-avalanche terrain until the storm snow has a chance to settle.
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.
20-40cm of storm snow (and wind) has developed a reactive slab at higher elevations. If triggered this layer has the potential to step down to deeper instabilities. Continue to make conservative route choices.
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.
20-40cm of recent storm snow (and wind) has developed a reactive slab at higher elevations, numerus skier triggered avalanches have been reported on this layer. Continue to make conservative route choices.
Control work on Wednesday produced several results on this layer, particularly in the alpine where storm slabs were able to entrain enough mass to step down to mid-pack instabilities. Field teams observed Whumpfing and moderate test results Sunday.
Snow that began to accumulate last Sunday quickly settled into a touchy soft slab in many locations. In exposed areas, strong SW winds further developed these slabs midweek. 10-15cm of new snow that arrived Saturday and Sunday now hides these slabs.
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.
Consistent snowfall over the week has created a storm slab. Previous strong South winds have redistributed the new snow into a windslab in the Alpine. 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. 50-100 cm of snow over the last week has overloaded these layers.
20-40cm of storm snow (and wind) has developed a slab at higher elevations. If triggered this layer has the potential to step down to deeper instabilities. Continue to make conservative route choices.
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.
20-40cm of recent storm snow (and wind) has developed a reactive slab at higher elevations. If triggered, this an avalanche on this layer will certainly step down to the deeper weak layers.
Field teams observed whumpfing and moderate test results Sunday and Monday in sheltered zones around treeline on these layers. Shallow areas seem to be the areas to watch in the alpine.
10-15cm of new snow that arrived Saturday and Sunday is being redistributed by light to moderate NW winds.  This new snow may also be hiding older stiffer windslabs from last weeks heavy snow and strong SW winds.
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.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">With the extra 25cm of new snow and moderate winds, our storm slab is not getting the time it needs to heal. A layer of large stellars was found down 25cm yesterday, which could have been the culprit layer in regards to the </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://www.avalanche.ca/mountain-information-network/submissions/d6311b3e-980a-41a9-8008-eccec0377268" target="_blank"><span class="s_9255B882">skier accidental size 2!</span></a><span class="s_AA239
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.
Field teams observed whumpfing and moderate test results Sunday and Monday in sheltered zones around treeline on these layers. Shallow areas where windslabs thin out are likely triggering locations in the alpine.
10-15cm of recent snow is being added to lee features by moderate SW winds. This new snow may also be hiding older stiffer windslabs from last weeks heavier snow and strong SW 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. 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.
40cm new snow and mod winds, our storm slab is not getting time to heal. A layer of large stellars was found down 25cm Monday, which could have been the culprit layer in regards to the size 2 skier accidental slide reported Monday on McGill.
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.
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.
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.
Field teams observed whumpfing and moderate test results Sunday and Monday in sheltered zones around treeline on these layers. Shallow areas are the most likely triggering locations in the alpine.
Windslabs were created over the last week with 40cm of snow and West winds. The incoming snow coupled with moderate West winds may build sensitive new storm / windslabs.
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
Another 40cm overnight adds to our storm slab which has reached its critical load. The storm slab will need some time to adjust, settle out and stabilize.
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.
Field teams observed widespread whumpfing and moderate test results at TL during the past week. Shallow areas are the most likely triggering locations in the alpine.
Windslabs were created over the last week with 40cm of snow and West winds. The incoming snow coupled with moderate West winds may build sensitive new storm / windslabs.
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.
Persistent slabs remain a problem, areas that have already cleaned out in the last avalanche cycle pose the least risk.
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.
Up to 45cm of HST fell through the forecast area, over-loading the already weak persistent slab and running far and fast.
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.
Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Expect loading on lee features and new wind slab development on exposed slopes.
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.
Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Expect loading on lee features and new wind slab development on exposed slopes.
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.
Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Expect loading on lee features and new wind slab development on exposed slopes.
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.
Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Expect loading on lee features and new wind slab development on exposed slopes.
Up to 45cm of HST fell through the forecast area. Winds during the storm were from the SW but switched to North Easterly on Sunday.
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.
Recent mod to strong N'ly winds followed by strong S'ly winds have formed winds slab in the alpine and exposed treeline locations. These winds have also contributed to large cornice development. The windslab may be susceptible to human triggering.
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.
Up to 45cm of HST fell through the forecast area. Winds during the storm were from the SW but switched to North Easterly on Sunday.
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.
Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Strong winds are forecast for Tuesday, expect new slab formation and possible triggering of the persistent layer.
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.
Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Strong winds are forecast for Tuesday, expect new slab formation and possible triggering of the persistent layer.
Significant snowfall and recent strong winds have formed winds slab in the alpine and exposed treeline.
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.
Strong winds on Tuesday evening has created widespread wind effect in most areas above treeline. Hard wind slabs are anticipated.
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.
Strong winds on Tuesday evening has created widespread wind effect in most areas above treeline. Hard wind slabs are anticipated.
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.
Strong winds last Tuesday night created widespread wind effect in most areas above treeline. Hard wind slabs exist in the alpine lees.
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.
Strong winds last Tuesday night created widespread wind effect in most areas above treeline. Hard wind slabs exist in the alpine lees.
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.
Strong winds last Tuesday night created widespread wind effect in most areas above treeline. Hard wind slabs exist in the alpine lees.
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.
Strong winds last Tuesday night created widespread wind effect in most areas above treeline. Hard wind slabs exist in the alpine lees.
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.
Variable direction, strong upper elevation winds are continuing to create fresh windslabs and stiffen the snow surface well into Treeline locations.
Whumpfing and cracking are signs of this layer's reactivity. Expect collapses to propagate larger distances with a wind-stiffened snow surface.
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.
Strong winds Thursday night created widespread wind effect in most areas above treeline. Hard wind slabs exist in the alpine lees.
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.
Strong winds Thursday night created widespread wind effect in most areas above treeline. Hard wind slabs exist in the alpine lees.
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.
Strong winds last Tuesday night created widespread wind effect in most areas above treeline. Hard wind slabs exist in the alpine lees.
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.
Strong winds last Tuesday night created widespread wind effect in most areas above treeline. Hard wind slabs exist in the alpine lees.
Whumpfing and cracking are signs of this layer's reactivity. Expect long propagation with a wind-stiffened snow surface.
Variable direction, strong upper elevation winds are continuing to create fresh windslabs and stiffen the snow surface well into Treeline locations.
15 hrs of strong N-NE winds have formed reverse loaded windslab at and above treeline. Natural and skier triggered avalanches are expected from this ongoing loading. Avoid exposing yourself to overhead hazard.
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.
While the winds are now starting to back off, they blew hard, and from a variety of directions all week. Fresh windslabs that are hard in the alpine and exist well into treeline areas can be expected to be be sensitive to skier triggering.
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.
While the winds are now starting to back off, they blew hard, and from a variety of directions all week. Fresh windslabs that are hard in the alpine and exist well into treeline areas can be expected to be be sensitive to skier triggering.
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.
Previous strong N-NE winds have formed reverse loaded windslab at and above treeline. Windslab avalanches to size 2.5 have been triggered by skiers or failing naturally. Avoid exposing yourself to overhead hazard.
Persistent weak layers continue to linger and are most likely triggered in steep, shallow, rocky, unsupported terrain features. 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.
While the winds have abated, they blew hard, and from a variety of directions last week. Windslabs are hard in the alpine and they exist well into treeline areas. These can be expected to be be sensitive to skier triggering.
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.
Previous strong northerly winds have formed reverse loaded windslab at and above treeline. Windslab avalanches up to size 2.5 have been triggered by skiers or failing naturally. Avoid exposing yourself to overhead hazard.
Persistent weak layers continue to linger and are most likely triggered in steep, shallow, rocky, unsupported terrain features. Larger triggers such as cornice fall may also wake these deeper weak layers resulting in larger avalanches.
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.
While the winds have abated, they blew hard, and from a variety of directions last week. Windslabs are hard in the alpine and they exist well into treeline areas. These can be expected to be be sensitive to skier triggering.
Previous strong northerly winds have formed reverse loaded windslab at and above treeline. Windslab avalanches up to size 2.5 have been triggered by skiers or failing naturally over the past week.
Persistent weak layers continue to linger and are most likely triggered in steep, shallow, rocky, unsupported terrain features. Large triggers such as cornice fall may also wake up these deeper weak layers resulting in large avalanches.
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.
Expect hardslabs in the alpine and a few softer slabs at treeline. The cold has kept these in check and helped these settle well over the last few days but some caution is still warranted with the expected warming this weekend.
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.
Previous strong northerly and recent moderate southerly winds formed windslab in the alpine and treeline. Natural slab avalanches to size 2 occurred earlier this week, many triggered by cornice fall. Avoid exposing yourself to overhead hazard.
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.
Expect hardslabs in the alpine and a few softer slabs at treeline. The cold has kept these in check and helped these settle well over the last few days but some caution is still warranted with the expected warming and increased wind this weekend.
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.
Previous strong northerly and recent moderate southerly winds formed windslab in the alpine and treeline. Natural slab avalanches to size 2 occurred earlier this week, many triggered by cornice fall. Avoid exposing yourself to overhead hazard.
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.
Expect hardslabs in the alpine and a few softer slabs at treeline. The cold has kept these in check and helped them settle over the last few days but some caution is still warranted.
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.
Moderate S'ly winds and 20cm of storm snow all landing on a facetted old snow surface should make for reactive storm slab at and above treeline.  Lingering windslab is also a concern and will be hidden under the new snow.
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).
Expect hardslabs in the alpine and a few softer slabs at treeline. The cold has kept these in check and helped them settle over the last few days but some caution is still warranted.
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.
A 50 to 80cm thick slab, 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).  Faceting has reduced slab strength in shallow and BTL areas.
Expect hardslabs in the alpine and a few softer slabs at treeline. The cold has kept these in check and helped them settle over the last few days but some caution is still warranted especially as new snow and winds arrive over the next few days.
Storm slabs will be most prevalent in the Alpine and areas at treeline where exposed to the wind. Previous wind slabs are now buried and slowly starting to heal. Cornice failures have tapered off, but it's still recommended to give them a wide berth.
A 50 to 80cm thick slab, 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). Faceting has reduced slab strength in shallow and BTL areas.
Expect hardslabs in the alpine and a few softer slabs at treeline. The cold has kept these in check and helped them settle over the last few days but some caution is still warranted especially as new snow and winds arrive over the next few days.
We continue to track three mid-snowpack weak layers from earlier this winter. They are bonding well and test results no longer show failures here. This problem continues to be in the back of our minds, but our confidence in the snowpack has improved.
We continue to track three mid-snowpack weak layers from earlier this winter. They are bonding well and test results no longer show failures here. This problem continues to be in the back of our minds, but our confidence in the snowpack has improved.
Incremental snow fall amounts and recent moderate, gusting to strong southerly winds have created pockets of wind slab in the alpine and exposed areas at tree line.
A slab up to 80cm thick overlies: weak faceted crystals (well developed in shallow areas), surface hoar (at, and just above treeline), and sun crusts ( on steep S and W aspects). Faceting has reduced slab strength below treeline and in shallow areas.
Previous wind effect will be difficult to assess under new snow. Expect hardslabs in the alpine and at treeline. The cold has reduced the tension in these but caution is still warranted, especially as new snow arrives over the next few days.
Low density snow and recent moderate southerly winds have created pockets of wind slab in the alpine and exposed areas at tree line, which overlies a facet layer. Caution is warranted at ridge-top, in cross loaded features and on convex rolls.
A slab up to 80cm thick overlies: weak faceted crystals (well developed in shallow areas), surface hoar (at, and just above treeline), and sun crusts ( on steep S and W aspects). Faceting has reduced slab strength below treeline and in shallow areas.
Previous wind effect will be difficult to assess under new snow. Expect hardslabs in the alpine and at treeline. The cold has reduced the tension in these but caution is still warranted, especially as new snow arrives over the next few days.
Moderate winds have created pockets of wind slab in the alpine and exposed areas at tree line. In the alpine, the wind slab is poorly bonded to buried facets and a crust on solar aspects. Due to shifting winds, slabs can be found on all aspects.
A slab up to 80cm thick overlies: weak faceted crystals (well developed in shallow areas), surface hoar (at, and just above treeline), and sun crusts ( on steep S and W aspects). Faceting has reduced slab strength below treeline and in shallow areas.
Previous wind effect will be difficult to assess under new snow. Expect hardslabs in the alpine and at treeline. The cold has reduced the tension in these but caution is still warranted.
Around 10 cm of new snow fell overnight with another 5-10 possible today. Expect this snow to be reactive at ridgetop or in steep unsupported terrain. This new slab buries an old windslab that was reactive on solar aspects.
A suncrust and facet layer is buried down 40-70 cms on solar aspects. This layer has the potential to be human triggered with wide propagation.
Expect hardslabs in the alpine and at treeline. The cold has reduced the tension in these but caution is still warranted.
A cold, facetting, and structurally weak slab up to 80cm thick overlies: faceted crystals (well developed in shallow areas), surface hoar (at, and just above treeline), and sun crusts (on steep S and W aspects).
10-20 cm of storm snow has fallen with little wind. In many places this sits over loose facets from the last cold snap and with any increase in wind, or skier triggering, we will see small sluffs traveling a long ways in steep terrain.
10-20 cm of storm snow has fallen with little wind. In many places this sits over loose facets from the last cold snap and with any increase in wind, or skier triggering, we will see small sluffs traveling a long ways in steep terrain.
No recent avalanches have been observed on this facet layer but this is the sleeping dragon.
With forecasted winds expected to rise Sunday night, we can expect the new snow to form wind slabs.
Recent snowfall has created a touchy storm slab. Expect this snow to be reactive at ridgetop or in steep unsupported terrain. Sunny breaks are forecast today, even short bursts of the strong spring sun could make the new storm snow more reactive.
A suncrust and facet layer is buried down 40-70 cms on solar aspects. This is a bad combo of a weak layer and strong bed surface. This layer has the potential to be human triggered with wide propagation. Dig down and have a look for it.
Expect hard windslabs in the alpine and at treeline. The cold has reduced the probability for long propagations but caution is still warranted on exposed terrain features.
A cold, facetting, and structurally weak slab up to 80cm thick overlies: faceted crystals (well developed in shallow areas), surface hoar (at, and just above treeline), and sun crusts (on steep S and W aspects).
10-20 cm of storm snow has fallen with little wind. In many places this sits over loose facets from the last cold snap and with any increase in wind, sun or skier triggering, we will see small sluffs traveling a long ways in steep terrain.
This problem will be more pronounced in the parts of the forecast region that received more storm snow. It will be particularly prevalent in steep confined areas.
Storm snow has formed into a touchy storm slab. Expect this snow to be reactive at ridgetop or in steep unsupported terrain. Sunny breaks are forecast today, even short bursts of the strong spring sun could make the new storm snow more reactive.
A suncrust and facet layer is buried down 40-70 cms on solar aspects. This is a bad combo of a weak layer and strong bed surface. This layer has the potential to be human triggered with wide propagation. Dig down and have a look for it.
Expect windslabs in the alpine and at treeline. The cold has reduced slab conductivity and the probability for long propagations but caution is still warranted on exposed terrain features.
A cold, facetting, and structurally weak slab up to 80cm thick overlies faceted crystals (well developed in shallow areas), and areas with preserved surface hoar (at, and just above treeline).
This problem is more pronounced in the Southern parts of the forecast region that received more storm snow. It will be particularly prevalent in steep confined gullies, and/or where the old snow below the storm snow is weak and facetted.
No recent avalanches have been observed on this facet layer but this is the sleeping dragon.
Isolated wind slabs in steep gullies
Storm snow has formed a slab at ridgetop, wind exposed terrain or in steep unsupported rolls. Sunny breaks are forecast today, even short bursts of the strong spring sun could make the new storm snow more reactive.
A suncrust is buried 40-70 cms on solar aspects. This layer has the potential for human triggering, dig down and assess the snowpack before committing to your line.
This problem is mainly for the Kootenay region that received more storm snow this pasty weekend. It will be particularly prevalent in steep confined gullies, and/or where the old snow below the storm snow is weak and facetted.
Expect windslabs in the alpine and at open treeline. The cold has reduced slab conductivity, and the probability for long propagations. Caution is still warranted on exposed or extreme terrain features.
A cold, facetting, and structurally weak slab up to 80cm thick overlies faceted crystals (well developed in shallow areas).
Isolated storm slabs could be found at ridgetop or features exposed to the wind. Solar radiation will trigger loose dry avalanches on steep sunny slopes and cliffs. These &quot;sluffs&quot; could trigger a soft slab or step down to a persistent weak layer.
Suncrusts are buried 20-50 cms on steep solar aspects. This layer has the potential for human triggering, dig down and assess the snowpack before committing to your line.
Expect windslabs in the alpine and at open treeline. The cold has reduced slab conductivity, and the probability for long propagations. Caution is still warranted on exposed or extreme terrain features.
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.
Loose dry sluffs from steep terrain were noted Wednesday. Although small in nature, it will be a concern in steep confined gullies, and/or where the old snow below the storm snow is weak and facetted.
Isolated storm slabs could be found at ridgetop or features exposed to the wind. Solar radiation will trigger loose dry avalanches on steep sunny slopes and cliffs. These &quot;sluffs&quot; could trigger a soft slab or step down to a persistent weak layer.
Several sun crusts are buried within the top 50 cms on steep solar aspects. These layers have the potential for human triggering, dig down and assess the snowpack before committing to the line.
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.
Loose dry sluffs from steep terrain were noted Wednesday. Although small in nature, it will be a concern in steep confined gullies, and/or where the old snow below the storm snow is weak and facetted.
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.
Sun crusts are buried 30-60 cm on steep solar aspects. This interface provides a smooth bed surface and may contribute to larger than expected avalanches. It is possible for storm snow avalanches to trigger this lingering 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.
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.
Strong south winds and recent storm snow have created wind slabs. Expect these slabs to be most reactive at ridgetop or in steep unsupported terrain. Today is forecast to be sunny and the strong solar radiation to make the windslab more reactive.
Sun crusts are buried 30-60 cm on steep solar aspects. This interface provides a smooth bed surface and may contribute to larger than expected avalanches. It is possible for smaller avalanches to trigger this lingering problem.
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.
Sun crusts are buried 30-60 cm on steep solar aspects. This interface provides a smooth bed surface and may contribute to larger than expected avalanches. It is possible for smaller avalanches to trigger this lingering problem.
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.
Sun crusts are buried 30-60 cm on steep solar aspects. This interface provides a smooth bed surface and may contribute to larger than expected avalanches. It is possible for smaller avalanches to trigger this lingering problem.
Shaded aspects and elevations above the freezing level.
solar aspects and elevations below the freezing level
rising freezing levels and large triggers like cornice failures may wake up deeper slab instabilities
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
More shaded aspects and elevations above the freezing level.
Rising freezing levels and large triggers like smaller avalanches may wake up deeper slab instabilities
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.
Polar aspects still have cold, faceted snow and did not receive either solar triggers or significant snowpack settlement this past week. Steep, unsupported slopes should be treated with due respect.
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.
Fresh storm slabs may sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects, assess the bond at these interfaces carefully before committing to any avalanche start zones.
Fresh storm slabs may sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects, assess the bond at these interfaces carefully before committing to any avalanche start zones.
20-30 cm of snow in the last 24hrs has been sluffing naturally in steep terrain and is reactive to skiers. Wind, warm temps or sunny breaks will also increase the likelihood of this. Avoid steep confined terrain until the new snow settles and bonds.
20-30 cm of new snow is forming a soft slab and has been reactive to skier triggering. Places where this slab sits over a melt freeze crust may be the most likely to fail, but all steep terrain will be suspect for the next day or two.
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.
In places where the storm snow is deepest, a soft slab has formed that remains reactive to human triggering. Monitor the storm snow amounts frequently, and use caution on larger slopes if a storm snow slab is present.
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
Fresh storm slabs may sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects, assess the bond at these interfaces carefully before committing to any avalanche start zones.
20-30cm recent snow has formed a soft slab and has seen recent human triggering. Dig down to look at how the new snow is bonding to the surface below, as there are a variety of crusts, facets, and old snow depending on aspect and elevation.
20-30cm recent snow has formed a soft slab and has seen recent human triggering. Dig down to look at how the new snow is bonding to the surface below, as there are a variety of crusts, facets, and old snow depending on aspect and elevation.
Hazard will increase with clearing skies after new snow.
Watch for these developing Monday afternoon through Tuesday.
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.
Fresh storm slabs may sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to any avalanche start zones.
20-30cm recent snow has formed a soft slab and has seen recent human triggering. Avalanche activity is tapering but dig down to test the layer in your local area to determine its sensitivity.&nbsp;
20-30cm recent snow has formed a soft slab and has seen recent human triggering. Avalanche activity is tapering but dig down to test the layer in your local area to determine its sensitivity.
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.
Storm slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to avalanche start zones.
Minuscule amounts of new snow fell with moderate winds overlying a solid snowpack. A storm slab may be most problematic where it's sitting on a crust and or on a surface hoar on a crust, where exposed to the wind.
24 hours of sustained winds from the SW has created windslabs up to 30 cm thick in leeward areas, mostly in the alpine. The are unlikely to release naturally but can be triggered by skiers and climbers.
24 hours of sustained winds from the SW has created windslabs up to 30 cm thick in leeward areas, mostly in the alpine. The are unlikely to release naturally but can be triggered by skiers and climbers.
Windslabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Shaded slopes have been more reactive. Assess the bond at these interfaces carefully before committing to avalanche start zones.
15cm of recent snow and moderate winds have built a storm slab and may be most problematic where it's sitting on a crust, or on surface hoar over a crust where exposed to the wind.
Localized winds have created slabs up to 30 cm thick in some drainages, in other areas they are much thinner and restricted to the immediate lees. They are unlikely to release naturally but can be triggered by skiers and climbers.
Localized winds have created slabs up to 30 cm thick in some drainages, in other areas they are much thinner and restricted to the immediate lees. They are unlikely to release naturally but can be triggered by skiers and climbers.
Windslabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Shaded slopes have been more reactive. Assess the bond at these interfaces carefully before committing to avalanche start zones.
Recent snow and variable moderate winds may have built pockets of wind slab and would be most problematic where it's sitting on a crust or surface hoar.
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.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Shaded slopes have been more reactive. Assess the bond at these interfaces carefully before committing to avalanche start zones.
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.
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.
Strong southerly winds contributed to a natural avalanche cycle this morning. Lingering windslabs are present on most aspects in the alpine. Windslabs are likely to propagate where they overlie buried curst on solar aspects and isolated surface hoar.
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.
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.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Shaded slopes have been more reactive. Assess the bond at these interfaces carefully before committing to avalanche start zones.
Lingering wind slabs are present on most aspects in the alpine. These slabs are most easily triggered on convex, unsupported terrain. Wind slabs are likely to propagate where they overlie a buried curst on solar aspects and isolated surface hoar.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Shaded slopes have been more reactive. Assess the bond at these interfaces carefully before committing to avalanche start zones.
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.
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.
Lingering wind slabs are present on most aspects in the alpine. These slabs are most easily triggered on convex, unsupported terrain. Wind slabs are likely to propagate where they overlie a buried curst on solar aspects and isolated surface hoar.
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.
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.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to avalanche start zones.
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
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to avalanche start zones.
Wind slabs and wind effect will increase on Tuesday with the arrival of new snow and continued W winds. We expect to see increased natural avalanche activity, especially as cornices get over loaded and fail, and human triggering will be likely.
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.
Wind slabs and wind effect will increase on Tuesday with the arrival of new snow and continued W winds. We expect to see increased natural avalanche activity, especially as cornices get over loaded and fail, and human triggering will be likely.
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.
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
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to avalanche start zones.
Wind slabs and wind effect will continue to be a problem.
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.
Wind slabs and wind effect will increase on Tuesday with the arrival of new snow and continued W winds. We expect to see increased natural avalanche activity, especially as cornices get over loaded and fail, and human triggering will be likely.
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.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to any avalanche zones.
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.
The buried March 15th suncrust has provided a good sliding layer in recent skier triggered avalanches. This crust is buried 25-40cm currently on solar aspects, and will be deeper after the forecast snow Friday.
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.
The buried March 15th suncrust has provided a good sliding layer in recent skier triggered avalanches. This crust is buried 25-40cm currently on solar aspects, and will be deeper after the forecast snow Friday.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to to a slope.
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.
The new snow Friday arrived with strong SW winds and formed wind slabs in lee areas. Some older wind slabs will now be buried in specific features at upper elevations as well. This new snow will need a few days to settle and bond.
The buried March 15th sun crust is down 25-50cm and has provided a good sliding layer for several skier triggered avalanches over the past week. The new snow load may make this more touchy so avoid steep solar aspects until this has a chance to bond.
The new snow Friday arrived with strong SW winds and formed wind slabs in lee areas. Some older wind slabs will now be buried in specific features at upper elevations as well. This new snow will need a few days to settle and bond.
The buried March 15th sun crust is down 25-50cm and has provided a good sliding layer for several skier triggered avalanches over the past week. The new snow load may make this more touchy so avoid steep solar aspects until this has a chance to bond.
Of greatest concern in the Alpine where winds were most consistently from the North. Cold temperatures will offer some forgiveness but if triggered this might provide enough mass for a step down effect to deeper weaknesses.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to to a slope.
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.
Still some observations of avalanches reported today by Lake Louise ski hill on the March 15th sun crust now buried 30-50cm deep. Dig down to see if the crust exists and its bond to the snow above.
Still some observations of avalanches reported today by Lake Louise ski hill on the March 15th sun crust now buried 30-50cm deep. Dig down to see if the crust exists and its bond to the snow above.
Explosive work today produced numerous results on this storm slab interface. Typically 50m or less but with larger triggers up to 100m. It is expected this instability will settle out quickly as there is no significant sliding interface.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to to a slope.
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.
In most cases this interface presents as a manageable surface instability and is expected to go dormant pretty quickly. Pay close attention to any fellow travelers above and/or below you as enter fresh terrain.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to to a slope.
The new snow Friday arrived with strong SW winds and reports vary concerning the extent of the wind effect. Some good propagation was seen in the wind loaded portions of start zones with avalanche control. East winds Monday should redistribute snow.
This crust has given several groups a surprise over the last while. Be suspicious of solar terrain and recognize that the bond to this crust will vary with subtle changes in slope aspect and angle.
The new snow Friday arrived with strong SW winds and reports vary concerning the extent of the wind effect. Some good propagation was seen in the wind loaded portions of start zones with avalanche control. East winds Monday should redistribute snow.
This crust has given several groups a surprise over the last while. Be suspicious of solar terrain and recognize that the bond to this crust will vary with subtle changes in slope aspect and angle.
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.
70-90cm of settled snow sits on the mid March crust/facet combo. This layer was whumphing and tests showed potential for wide propagation if this layer is triggered.
Expect to encounter windslabs on all aspects at treeline and higher. They range from 20 to 40cm thick. On solar aspects, where the Mar 15 crust exists, potential remains for these wind slabs to be touchier than polar aspects.
Dig down to test the bond between the recent storm snow and the Mar 15 crust. While activity has tapered, forecasters do not have the confidence to remove this problem. Forecasters also suspect faceting on the Mar 15 crust due to recent cold temps.
In most cases this interface presents as a manageable surface instability and is expected to go dormant pretty quickly. Pay close attention to any fellow travelers above and/or below you as enter fresh terrain.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to to a slope.
Expect to encounter windslabs on all aspects at treeline and higher. They range from 20 to 40cm thick.
Dig down to test the bond between the recent storm snow and the Mar 15 crust. While activity has tapered, forecasters do not have the confidence to remove this problem. Forecasters also suspect faceting on the Mar 15 crust due to recent cold temps.
Previous strong variable winds have blown the recent storm snow around and loaded lee features in the Alpine. While these slabs are fresh they will be susceptible to human triggering, especially in steep unsupported terrain or with solar heating.
70-90cm of settled snow sits on the mid March crust/facet combo. This layer was whumphing and tests showed potential for wide propagation if this layer is triggered. Avoid convexities and thin snowpack areas on solar aspects.
In most cases this interface presents as a manageable surface instability and is expected to go dormant pretty quickly. Pay close attention to any fellow travelers above and/or below you as enter fresh terrain.
Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to to a slope.
Expect to encounter windslabs on all aspects at treeline and higher. They range from 20 to 40cm thick. On solar aspects, where the Mar 15 crust exists, potential remains for these wind slabs to be touchier than polar aspects.
Dig down to test the bond between the recent storm snow and the Mar 15 crust. Forecasters suspect faceting on the Mar 15 crust due to recent cold temps.  Seems most sensitive with daytime heating allowing the surface snow to propagate as a soft slab.
Expect to encounter windslabs on all aspects at treeline and higher. They range from 20 to 40cm thick. On solar aspects, where the Mar 15 crust exists, potential remains for these wind slabs to be touchier than polar aspects.
Dig down to test the bond between the recent storm snow and the Mar 15 crust. Forecasters suspect faceting on the Mar 15 crust due to recent cold temps. Seems most sensitive with daytime heating allowing the surface snow to propagate as a soft slab.
Previous strong variable winds have blown the storm snow around and loaded lee features in the Alpine. While these slabs are fresh they will be susceptible to human triggering, especially in steep unsupported terrain or with solar heating.
70-90cm of settled snow sits on the mid March crust/facet combo. In recent tests this layer fails suddenly and has showed potential for wide propagation if triggered. Avoid convexities and thin snowpack areas on solar aspects.
Dig down to test the bond between the recent storm snow and the Mar 15 crust. Forecasters suspect faceting on the Mar 15 crust due to recent cold temps. Seems most sensitive with daytime heating allowing the surface snow to propagate as a soft slab.
Dig down to test the bond between the recent storm snow and the Mar 15 crust. Forecasters suspect faceting on the Mar 15 crust due to recent cold temps. Seems most sensitive with daytime heating allowing the surface snow to propagate as a soft slab.
Persistent slabs sit on facets on polar aspects (more reactive recently), and a hard melt-freeze crust on solar aspects. Use a cautious approach in open terrain and assess the bond at these interfaces carefully before committing to a slope.
In most cases this interface presents as a manageable surface instability and is expected to go dormant pretty quickly.
Previous strong and variable winds have blown available snow around and loaded lee features tree line and above. While these slabs are fresh they will be susceptible to human triggering, especially in steep, unsupported terrain or with solar heating.
70-90cm of settled snow sits on the mid March crust/facet combo. In recent tests this layer fails suddenly and has showed potential for wide propagation if triggered. Avoid convexities and thin snowpack areas on solar aspects.
Persistent slabs sit on facets on polar aspects (more reactive recently), and a hard melt-freeze crust on solar aspects. Use a cautious approach in open terrain and assess the bond at these interfaces carefully before committing to a slope.
In most cases this interface presents as a manageable surface instability and is expected to go dormant pretty quickly.
Recent shifting winds have created easily identifiable wind slabs above treeline. More subtle wind loaded pockets exist in lee features and can easily be triggered by skiers. Watch for these pockets around cornices, wind lips and roll overs.
70-90cm of settled snow sits on the mid March crust/facet combo. This layer appears to be bonding well on polar aspects. On solar aspects, this layer fails suddenly in stability tests and has shown potential for wide propagation if triggered.
Dig down to test the bond to the Mar 15 crust, bearing in mind that the bond can vary significantly with subtle changes in slope aspect and steepness. Forecasters suspect this problem is developing with&nbsp; faceting on the crust due to recent cold temps
Dig down to test the bond to the Mar 15 crust, bearing in mind that the bond can vary significantly with subtle changes in slope aspect and steepness. Forecasters suspect this problem is developing with faceting on the crust due to recent cold temps
New moist snow available for transport with incoming flurries. This will build on surface layers and may be enough to overload existing and lingering instabilities.
Persistent slabs sit on facets on polar aspects (more reactive recently), and a hard melt-freeze crust on solar aspects. Use a cautious approach in open terrain and assess the bond at these interfaces carefully before committing to a slope.
Recent shifting winds have created wind slabs above treeline. More subtle wind loaded pockets exist in lee features &amp; can easily be triggered by skiers. Watch for these pockets around cornices, wind lips and roll overs. New snow may hide these slabs
70-90cm of settled snow sits on the mid March crust/facet combo. This layer appears to be bonding well on polar aspects. On solar aspects, this layer fails suddenly in stability tests and has shown potential for wide propagation if triggered.
Dig down to test the bond to the Mar 15 crust, bearing in mind that the bond can vary significantly with subtle changes in slope aspect and steepness. Forecasters suspect this problem is developing with faceting on the crust due to recent cold temps.
Windslabs have developed in exposed alpine and treeline locations 10-30cm thick. They are generally well bonded but pockets of instability exist. Some propagations of 50-100m were noted last week.&nbsp; &nbsp; </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Persistent slabs sit on facets on North aspects and a hard melt-freeze crust on solar aspects. Use a cautious approach in open terrain and assess the bond at these interfaces before committing to a slope.
Dig down to test the bond to the Mar 15 crust, bearing in mind that the bond can vary significantly with subtle changes in slope aspect and steepness. Forecasters suspect this problem is developing with faceting on the crust due to recent cold temps.
A layer of storm snow sits over windslab at and above treeline. Watch for wind loading in lee features. Expect these pockets around cornices, wind lips and roll overs. Solar input and a warming trend today may wake surface layers on S'ly aspects.
70-90cm of settled snow sits on the mid March crust/facet combo. This layer appears to be bonding well on polar aspects. On solar aspects, this layer fails suddenly in stability tests and has shown potential for wide propagation if triggered.
Dig down to test the bond to the Mar 15 crust, bearing in mind that the bond can vary significantly with subtle changes in slope aspect and steepness. Forecasters suspect this problem is developing with faceting on the crust due to recent cold temps.
Dig down to test the bond to the Mar 15 crust, bearing in mind that the bond can vary significantly with subtle changes in slope aspect and steepness. Forecasters suspect this problem is developing with faceting on the crust due to recent cold temps.
Persistent slabs sit on facets on North aspects and a hard melt-freeze crust on solar aspects. Use a cautious approach and assess the bond at these interfaces before committing to a slope.
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.
70-90cm of settled snow sits on the mid March crust/facet combo. This layer appears to be bonding well on polar aspects. On S'ly aspects, this layer fails suddenly in stability tests. Continued warming and overloading may cause this layer to fail.
Persistent slabs sitting on facets on Northerly aspects continue to show isolated signs of reactivity. Travel on large Northerly features at treeline and in the alpine is not recommended.
Dig down to find and test the bond of the surface snow with the Mar 15 crust down 25-50 cm on steep solar aspects, bearing in mind that the bond can vary significantly with subtle changes in slope aspect, steepness or warming temperatures.
Dig down to find and test the bond of the surface snow with the Mar 15 crust down 25-50 cm on steep solar aspects, bearing in mind that the bond can vary significantly with subtle changes in slope aspect, steepness or warming temperatures.
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.
Persistent slabs sitting on facets on Northerly aspects continue to show isolated signs of reactivity. On solar aspects buried solar crusts present a sliding surface up to 80cm down. Triggering may occur from shallow snowpack areas some distance out.
Forecasters are still concerned about the March 15 crust which is down 25-50 cm on steeper solar aspects. There as been sporadic but regular skier triggered avalanches on this layer over the past several weeks.
There is potential for loose wet avalanches in the afternoon when the day heats up.
Forecasters are still concerned about the March 15 crust which is down 25-50 cm on steeper solar aspects. There as been sporadic but regular skier triggered avalanches on this layer over the past several weeks.
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.
70-90cm of settled snow sits on the mid March crust/facet combo and fails suddenly in the moderate-hard range in stability tests on solar aspects.
Persistent slabs sitting on facets on Northerly aspects continue to show isolated signs of reactivity. Triggering may occur from shallow snowpack areas some distance out.
Forecasters are still concerned about the March 15 crust which is down 25-50 cm on steeper solar aspects. There has been sporadic but regular skier and explosive triggered avalanches on this layer over the past several weeks.
Forecasters are still concerned about the March 15 crust which is down 25-50 cm on steeper solar aspects. There has been sporadic but regular skier and explosive triggered avalanches on this layer over the past several weeks.
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.
Persistent slabs sitting on facets on Northerly aspects continue to show sporadic signs of reactivity. The slab sits on buried temperature crusts on South aspects. Triggering may occur from shallow snowpack areas some distance out.
Strong SW winds overnight. Expect to see pockets of wind slab on lee features at higher elevation. A persistent layer down 70-90cm is currently dormant but may wake up with a big enough trigger such as a wind slab or cornice triggered avalanche.
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. 
Warm temps and strong winds are rapidly building windslabs from new snow in NE features.
With some new snow and stronger SW winds the wind slabs have become a bit more reactive over the past 24 hrs, especially where present over a buried sun crust.
A slab up to 80cm thick overlies: weak faceted crystals (well developed in shallow areas), surface hoar (at, and just above treeline), and sun crusts ( on steep S and W aspects). Faceting has reduced slab strength below treeline and in shallow areas.
With some new snow and stronger SW winds the wind slabs have become a bit more reactive over the past 24 hrs, especially where present over a buried sun crust.
25cm of snow in the last 24hrs with 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 south aspects &amp; created firm windslabs on North facing slopes.
Overloaded and under tension, new and buried windslab in the Alpine and TL will be sensitive to further loads, like more wind, more snow, and riders.
A slab up to 1m thick overlies: weak faceted crystals (well developed in shallow areas), surface hoar (at, and just above treeline), and sun crusts (on steep S and W aspects). Faceting has reduced slab strength below treeline and in shallow areas.
Gusty winds and new snow have formed touchy soft slabs that are reacting easily to skier traffic and starting to fail as natural events. Watch for another pulse of snow to either contribute to these slabs or potentially hide them.
While it has been a few days since there has been any confirmed events directly associated with the March 15 crust, other crusts have now become buried in similar locations. Forecasters still voice caution with all of these potential sliding layers.
Gusty winds and new snow have formed touchy soft slabs that are reacting easily to skier traffic and starting to fail as natural events. Watch for another pulse of snow to either contribute to these slabs or potentially hide them.
While it has been a few days since there has been any confirmed events directly associated with the March 15 crust, other crusts have now become buried in similar locations. Forecasters still voice caution with all of these potential sliding layers.
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.
Gusty winds and new snow have formed soft slabs that are reacting to skier traffic. Watch for another pulse of snow to either contribute to these slabs or potentially hide them.
While it has been a few days since there has been any confirmed events directly associated with the March 15 crust, other crusts have now become buried in similar locations. Forecasters still voice caution with all of these potential sliding layers.
Gusty winds and new snow have formed soft slabs that are reacting to skier traffic. Watch for another pulse of snow to either contribute to these slabs or potentially hide them.
While it has been a few days since there has been any confirmed events directly associated with the March 15 crust, other crusts have now become buried in similar locations. Forecasters still voice caution with all of these potential sliding layers.
Overloaded and under tension, new and buried windslab in the Alpine and TL is sensitive to further loads, like more wind, more snow, more sun and, especially riders.
A slab up to 1m thick overlies: weak faceted crystals, and sun crusts (on steep S and W aspects). This problem has been associated with large triggers like cornices and the subsequent avalanches are proving large and destructive.
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.
It is still possible to trigger this layer but it will be in the isolated, steep spot.  Be careful around steep terrain where a stiffer, more cohesive slab exists over the weak snow at the base of the snowpack.
It is still possible to trigger this layer but it will be in the isolated, steep spot. Be careful around steep terrain where a stiffer, more cohesive slab exists over the weak snow at the base of the snowpack.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
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.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
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.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
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 and encouraged slab development.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
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 and encouraged slab development.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
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.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
5-10cm of recent low density snow will form Windslabs as winds increase.
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.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
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.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
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.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
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.
Although currently dormant, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
Forecasted snow values will overlay a variety a weak surface forms providing a poor bond at the new snow interfaces. The timing and intensity of this storm is still uncertain.
Isolated pockets of soft windslab can be expected on alpine and treeline lee features. Be cautious moving into wind effected terrain.
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.
Newly formed wind slabs will likely not bond well to underlying surfaces. They rest on old slabs, up to 40 cm deep. These slabs can provide the push to get the deep persistent slab problem initiated or entrain the weak faceted snowpack.
As the snowfall intensifies expect to see loose avalanche run from cliffy terrain into terrain features such as gullies.
Storm slabs will build over the next few days as the new snow intensifies.
Although currently dormant, the increasing load of new snow and upper snowpack releases is expected to trigger this deeply buried layer later in the week .
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.
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.
Wind is the dominant feature of the current storm, and combined with the new snow will have created deep windslabs. These could be easily triggered over the next few days, or you could be hit from above if you are in confined areas (ice climbers).
The mid and lower portions of the snowpack are weak and will not tolerate much additional load before releasing large avalanches. As you poke your head out of the treeline in the next 48-hours, be very wary of overhead hazard.
Wind is the dominant feature of the current storm, and combined with the new snow will have created deep windslabs. These could be easily triggered over the next few days, or you could be hit from above if you are in confined areas (ice climbers).
The mid and lower portions of the snowpack are weak and will not tolerate much additional load before releasing large avalanches. As you poke your head out of the treeline in the next 48-hours, be very wary of overhead hazard.
Fresh slabs will continue to build over the next two days as the storm fronts pass over our region.
As the snowfall intensifies expect to see loose avalanche run from steep terrain.
The increasing load of new snow and smaller storm triggered avalanches will be the first real test of this deeply buried weak layer, best to avoid exposure to avalanche terrain until we have seen the result.
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.
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.
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.
The increasing load of new snow and smaller storm triggered avalanches will be the first real test of this deeply buried weak layer, best to avoid exposure to avalanche terrain until we have seen the result.
Newly formed windslabs are sitting on a weak snowpack that is a mixed bag of facets and crusts
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.
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.
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.
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.
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.
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.
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.
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.
Loose dry avalanches have been observed running long distances.
The recent storm snow was walloped by extreme southerly winds overnight. Wind loaded pockets will be present on lee and cross loaded features, especially on north aspects. The newly distributed snow load sits atop existing storm instabilities.
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.
Normally found 20-30cm off the ground. Potential for step-down avalanches if you trigger a wind slab or storm slab.
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.
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 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.
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.
30cm of storm snow since Thursday on the divide along with strong west winds has created windslabs in the alpine and treeline. These are sitting on a weak snowpack and have the potential to step down to deeper layers.
The bottom of the snowpack is a combination of crusts and facets that is reactive to large triggers.
Extreme southerly winds redistributed the storm snow Saturday. Wind slabs will be present on lee and cross-loaded features in the alpine/tree-line, and easily triggered on unsupported convex rolls. These slabs sit atop existing storm instabilities.
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.
Moderate SW winds continue building windslabs particularly at ridge-tops. These were sensitive in lee areas, most notably NE, treeline and alpine features.
Determining the strength of bond at the Dec11 interface is key to safe travel in open features at treeline and below.
The weak Oct25 crust-facet interface is found 20-30cm off the ground. There is serious potential for step-down avalanches if you trigger the wind or storm slab.
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.
New snow and moderate - strong winds are producing wind slabs and can be found on lee and cross-loaded features in the alpine and tree line and easily triggered on unsupported convex rolls. These slabs sit atop existing storm instabilities.
The December 9 weak layer is down 60-100cm. This layer consists of surface hoar, facets, and sun crust, depending on the aspect and producing sudden planar test results. Natural and human triggered avalanches are still occurring on this 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.
Moderate SW winds continue building windslabs particularly at ridge-tops. These were sensitive in lee areas, most notably NE, treeline and alpine features.
Several recent large avalanches have been the result of the entire snowpack failing on or near the ground due to the weak snowpack structure surrounding this interface.
Old windslabs to be bonding well to old surfaces thanks to warm temperatures, but a new set will be forming with the incoming storm on Tuesday.
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.
The December 9 weak layer is down 70-100cm and consists of surface hoar, facets, and sun crust, depending on the aspect and producing sudden planar test results. Natural and human triggered avalanches are still occurring on this layer.
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.
Moderate SW winds have built windslabs particularly at ridge-tops. These are sensitive in the loading zones, most notably NE exposed treeline and alpine features.
Several recent large avalanches have been the result of the entire snowpack failing on or near the ground due to the weak snowpack structure surrounding this interface.
New windslabs have formed with 20-30cm of new snow along the divide. Continued snow and wind Thursday night will continue to build slabs.
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.
25cm in the past 36hrs, accompanied by moderate winds and warm temp's, is forming into a cohesive surface storm slab. These will be found in immediate lee features below ridge crests and on cross-loaded slopes.
The Dec 9 weak layer is down 70-100cm and consists of surface hoar, facets, and sun crust, depending on the aspect. Sudden planar results are being seen on this layer. NAtural and human triggered avalanches are still occurring on this layer.
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.
Moderate SW winds and new snow continues to build fresh wind/storm slabs, particularly near ridge-tops.
Several recent large avalanches have been the result of the entire snowpack failing on or near the ground due to the weak snowpack structure surrounding this interface.
Another 30-50 cm of snow is forecast by Fri morning adding to the storm slab. Avoid avalanche terrain. Expect natural avalanches to run down into the treeline. Safe terrain can be found in low angled forest with no exposure to avalanches from above.
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.
Another 30-50 cm of snow is forecast by Fri morning adding to the storm slab. Avoid avalanche terrain. Expect natural avalanches to run down into the treeline. Safe terrain can be found in low angled forest with no exposure to avalanches from above.
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.
30cm+ of snow in the past 36hrs accompanied by mod S'ly wind and warm temp's, is forming a cohesive surface storm slab. Slabs will be more pronounced in wind effected areas such as immediate lee features below ridge crests and on cross-loaded slopes.
The Dec 9 weak layer is down 70-100cm and consists of surface hoar, facets, and sun crust, depending on the aspect. Sudden planar results are being seen on this layer. Natural and human triggered avalanches are still occurring on this layer.
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.
Moderate SW winds and new snow continues to build fresh wind/storm slabs, particularly near ridge-tops.
Several recent large avalanches have been the result of the entire snowpack failing on or near the ground due to the weak snowpack structure surrounding this interface.
The recent storm snow has almost doubled our snowpack and is failing easily on the Dec 10 interface. Natural avalanches may reach treeline areas. Safe terrain can be found in low angled forest with no exposure to avalanches from above.
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.
The recent storm snow has almost doubled our snowpack and is failing easily on the Dec 10 interface. Natural avalanches may reach treeline areas. Safe terrain can be found in low angled forest with no exposure to avalanches from above.
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
The Dec 9 weak layer is down 80-110cm and consists of surface hoar, facets, and sun crust, depending on the aspect. Sudden planar results are being seen on this layer. Natural and human triggered avalanches are still occurring on this layer.
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.
Fresh wind slabs from strong winds over the last 2 days have formed within the new storm snow. These will be most prevalent in the lee of features and may stay reactive over the next couple of days.
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.
Fresh wind slabs from strong winds over the last 2 days have formed within the new storm snow. These will be most prevalent in the lee of features and may stay reactive over the next couple of days.
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.
Moderate SW winds and new snow continues to build fresh wind, particularly near ridge-tops.
Several recent large avalanches have been the result of the entire snowpack failing on or near the ground due to the weak snowpack structure surrounding this interface.
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.
The Dec 9 weak layer is down 80-110cm and consists of surface hoar, facets, and sun crust, depending on the aspect. Sudden planar results are being seen on this layer. Natural and human triggered avalanches may still occur on this layer.
Moderate SW winds and new snow continues to build fresh wind, particularly near ridge-tops.
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.
Several recent large avalanches have been the result of the entire snowpack failing on or near the ground due to the weak snowpack structure surrounding this interface.
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.
Fresh wind slabs from strong winds over the last 2 days have formed within the new storm snow. These will be most prevalent in the lee of features and may stay reactive over the next couple of days.
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.
Fresh wind slabs from strong winds over the last 2 days have formed within the new storm snow. These will be most prevalent in the lee of features and may stay reactive over the next couple of days.
The Dec 9 weak layer is down 80-110cm and consists of surface hoar, facets, and sun crust, depending on the aspect. Sudden planar results are being seen on this layer. Natural and human triggered avalanches may still occur on this layer.
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.
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.
Fresh wind slabs from strong winds over the last 2 days have formed within the new storm snow. These will be most prevalent in the lee of features and may stay reactive over the next couple of days.
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.
Fresh wind slabs from strong winds over the last 2 days have formed within the new storm snow. These will be most prevalent in the lee of features and may stay reactive over the next couple of days.
Moderate to strong&nbsp; south west winds have created firm windslabs&nbsp; in the alpine and exposed treeline slopes.
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.
Several recent large avalanches have been the result of the entire snowpack failing on or near the ground due to the weak snowpack structure surrounding this interface.
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.
We have minimal observations from alpine terrain and have concerns of lingering pockets of wind slab; especially in immediate lee features below ridge crests and on cross-loaded slopes. Use caution and tread carefully entering new terrain.
Wind slabs may be sitting on a weak facet layer in some areas. Carefully evaluate the snowpack as you transition into treeline and alpine terrain.
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.
Moderate to strong south west winds have created firm windslabs in the alpine and exposed treeline slopes.
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.
Several recent large avalanches have been the result of the entire snowpack failing on or near the ground due to the weak snowpack structure surrounding this interface.
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.
We have minimal observations from alpine terrain and have concerns of lingering pockets of wind slab; especially in immediate lee features below ridge crests and on cross-loaded slopes. Use caution and tread carefully entering new terrain.
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.
Winds have abated on all but the highest ridge tops where slabs will be at their most developed.
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 .
We have minimal observations from alpine terrain and have concerns of lingering pockets of wind slab; especially in immediate lee features below ridge crests and on cross-loaded slopes. Use caution and tread carefully entering new terrain.
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.
Winds have abated on all but the highest ridge tops where slabs will be at their most developed.
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.
We have minimal observations from alpine terrain and have concerns of lingering pockets of wind slab; especially in immediate lee features below ridge crests and on cross-loaded slopes. Use caution and tread carefully entering new terrain.
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.
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.
Winds have abated on all but the highest ridge tops where slabs will be at their most developed.
New windslabs will be forming with incoming precipitation and wind on Saturday, but snowfall amounts are uncertain. Keep an eye on how much snow actually arrives, these will be developing on facetted low density snow and may be easy to trigger
Though we have not been seeing many recent results on this layer, the potential to trigger it remains in thin snowpack areas.
We have limited field observations from alpine terrain. Entrances to steep alp/ TL terrain may have lingering pockets of wind slab especially in immediate lee features below ridge crests and on cross-loaded slopes. Use caution entering new terrain.
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.
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 is forecast to come in with strong winds in the alpine which will create slabs.
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.
The Dec 9 and Nov 21 persistent weak layers are down ~100cm+ and consists of surface hoar, facets, or a sun crust depending on aspect and elevation.  With new rapid load these weak layers may wake up again.
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.
The Dec 9 and Nov 21 persistent weak layers are down ~120cm+ and consists of surface hoar, facets, or a sun crust depending on aspect and elevation. With the new load these weak layers may wake up again.
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.
Strong SW winds blew mid-storm on Saturday creating touchy new slabs. While the cold temperatures that have followed can be expected to diminish the sensitivity of these slabs, they certainly deserve some respect for the next little while.
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.
Strong SW winds blew mid-storm on Saturday creating touchy new slabs. While the cold temperatures that have followed can be expected to diminish the sensitivity of these slabs, they certainly deserve some respect for the next little while.
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
The Dec 9/Nov 21 persistent weak layers are down ~120cm+ and consist of surface hoar, facets, or a sun crust depending on aspect and elevation. Yesterday's Bruins Ridge avalanche likely stepped down to this layer.
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.
Strong SW winds blew mid-storm on Dec. 29th creating touchy new slabs. While the cold temperatures that have followed have diminished the sensitivity of these slabs, they are still reactive with explosives in steep terrain.
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.
Strong SW winds blew mid-storm on Dec. 29th creating touchy new slabs. While the cold temperatures have diminished the sensitivity of these slabs, they are still reactive to explosives in steep terrain.
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.
Expect this problem to transition to a Wind Slab by Thurs.
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.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The Dec 9/Nov 21 persistent weak layers are down ~120cm+ and consist of surface hoar, facets, or a sun crust depending on aspect and elevation. Sunday's </span><a href="https://www.facebook.com/pg/ParksMountainSafety/photos/?tab=album&amp;album_id=1997141533669159" target="_blank"><span class="s_9255B882">Bruins Ridge avalanche</span></a><span class="s_AA239A9B"> was triggered on this layer in a shallow, wind-swept area.
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.
Strong SW winds blew mid-storm on Dec. 29th creating touchy new slabs. While the cold temperatures that have followed have diminished the sensitivity of these slabs, they are still reactive with explosives in steep terrain.
Strong SW winds blew mid-storm on Dec. 29th creating touchy new slabs. While the cold temperatures have diminished the sensitivity of these slabs, they are still reactive to explosives in steep terrain.
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.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">The Dec 9/Nov 21 persistent weak layers are down ~120cm+ and consist of surface hoar, facets, or a sun crust depending on aspect and elevation. Sunday's </span><a href="https://www.facebook.com/pg/ParksMountainSafety/photos/?tab=album&amp;album_id=1997141533669159" target="_blank"><span class="s_9255B882">Bruins Ridge avalanche</span></a><span class="s_AA239A9B"> was triggered on this layer in a shallow, wind-swept area.
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!
Storm slabs may step down to the persistent weak layers today. The Dec 9/Nov 21 are down 1.5-2m and consist of surface hoar, facets, or a sun crust depending on aspect and elevation.
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.
The sun is expected to come out today and it may have enough strength to cause loose snow avalanches on steep solar aspects. With current conditions, these small sluffs may be enough to trigger larger storm snow avalanches.
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.
Moderate SW winds are moving around last week's storm snow and forming soft slabs in lee and cross-loaded features. We have limited alpine observations, so they may be more widespread than just lee features.
Strong winds, warm temps, and over a 100cm of snow in the last week has allowed cornices along ridge-tops to grow. Minimize time underneath these hulking beasts, and give them a wide berth if you are traveling along a ridgecrest.
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
New windslabs will be building as winds and snowfall increase on Wednesday.
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.
Moderate to strong SW winds building fresh windslabs.
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.
Moderate SW winds from the past several days formed a soft slab in lee and cross-loaded features. Tests showed this slab being stubborn to react, especially with the cold temps. They may be easier to initiate on convex rolls or steep S aspects.
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.
Moderate SW winds and warming temps continue to add to the windslab problem.
The Dec. 11th layer of facets and surface hoar is buried more than a meter deep. This layer is strengthening but was active during the recent storm.
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.
Moderate - strong W winds and warming temps continue to add to the wind slab problem.
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 and surface hoar is buried more than a meter deep. This layer is strengthening but was active during the recent storm.
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.
Moderate - strong W winds, snow available for transport, and warming temps continue to add to the wind slab problem.
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. 11th layer of facets and surface hoar is buried more than a meter deep. This layer is strengthening but was active during the recent storm.
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.
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.
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 recent size 3.5 skier triggered aval in Camp West path highlights that in some areas persistent slabs may be reactive. The problem likely woke up with rapid wind loading and significant new snow in January and was triggerable in a shallow area.
Moderate - strong SW winds, and significant amounts of snow available for transport. Avoid lingering in run-outs where active loading is happening and/or where there is no evidence of recent previous activity
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.
Moderate to strong SW winds have moved a significant amount of snow over the last three days. Expect widespread wind effect in the alpine and get your guard up as you enter open areas at treeline.
Moderate to strong SW winds have moved a significant amount of snow over the last three days. Expect widespread wind effect in the alpine and get your guard up as you enter open areas at treeline.
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.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A recent size </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> in Camp West path ran on this layer. The likelihood of triggering deeper layers increases with warming air temperatures. Cornices, which are also temperature sensitive, can certainly trigger this problem.
Strong SW winds, and significant amounts of snow available for transport have created wind slab in lee features. 
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.
These wind slabs are becoming less reactive but should be treated with respect if encountered.  If initiated these slabs could provide enough load to trigger the deeper basal layers.
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
Moderate to strong SW winds have moved a significant amount of snow over the last three days. Expect widespread wind effect in the alpine and get your guard up as you enter open areas at treeline.
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.
Strong SW winds, and significant amounts of snow available for transport have created wind slab in lee features.
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.
These wind slabs are becoming less reactive but should be treated with respect if encountered. If initiated these slabs could provide enough load to trigger the deeper basal layers.
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
Moderate to strong SW winds have moved a significant amount of snow over the last three days. Expect widespread wind effect in the alpine and get your guard up as you enter open areas at treeline.
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.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A recent size </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> in Camp West path ran on this layer. The likelihood of triggering deeper layers increases with warming air temperatures. Cornices, which are also temperature sensitive, can certainly trigger this problem.
This problem will only exist in solar facing terrain from early afternoon until sundown. Moist releases and sluffing from cliffs when combined, through entrainment, may have sufficient mass to trigger the deep persistent slab.
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 wind slabs appear to bonding well to the lower snowpack. Last weeks snow continues to settle and there is only minimal snow transport taking place near ridge line in the alpine.
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.
These wind slabs are becoming older and are likely less reactive but should be treated with respect especially while the warm conditions continue. If initiated these slabs could provide enough load to trigger the deeper basal layers.
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.
South and West winds built these slabs over the last week. While these slabs are becoming old, they are still worthy of respect, especially while the warm conditions continue.
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.
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.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A recent size </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> in Camp West path ran on this layer. The likelihood of triggering deeper layers increases with warming air temperatures. Cornices, which are also temperature sensitive, can certainly trigger this 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. Some large natural avalanches are still occurring and human triggering is likely
These wind slabs are becoming older and are likely less reactive but should be treated with respect especially while the warm conditions continue. If initiated these slabs could provide enough load to trigger the deeper basal layers.
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.
This problem will only exist in solar facing terrain from early afternoon until sundown.
Recently formed wind slabs appear to bonding well to the snowpack below.
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.
South and West winds built these slabs over the last week. While these slabs are becoming old, they are still worthy of respect, especially while the warm conditions continue.
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.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A recent size </span><a href="https://www.avalanche.ca/mountain-information-network/submissions/22f20069-b6cb-40b2-a84c-ff5998c30850" target="_blank"><span class="s_9255B882">3.5 skier triggered avalanche</span></a><span class="s_AA239A9B"> in Camp West path ran on this layer. The likelihood of triggering deeper layers increases with warming air temperatures. Cornices, which are also temperature sensitive, can certainly trigger this problem.
The likelihood of triggering this layer is low but the consequences are high, as the result would be a large destructive avalanche. Watch for thin areas or convexities in the snowpack where human triggering is possible.
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.
Wind slabs are present on lee features in the alpine and exposed areas that have been subjected to downflow winds. These slabs tend to make for challenging skiing conditions. It is possible to trigger these slabs in steep, unsupported terrain.
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.
Wind slabs are now concealed by 10cm of new snow, but are present on lee features and exposed areas in the alpine. These slabs tend to make for challenging skiing conditions. It is possible to trigger these slabs in steep, unsupported terrain.
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.
As of publication, we are close to threshold values for windslab. We need a little more input for this to become more widespread.
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.
Moderate winds over the day and night Saturday will create new windslab over a mix of surface conditions (facets, surface hoar, crust). Expect these to be reactive with extra caution to areas where surface hoar may be preserved.
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.
A storm slab sits on top of the January 17th surface hoar layer and old windslab depending on location. TL field trips yesterday found it to be very soft. Wind effected areas at higher elevation are expected to be more sensitive with a denser slab.
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.
Wind Slabs will continue to build over a crust / surface hoar layer and may propagate farther than expected. Dig down and investigate the bond of new snow before committing to your line.
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.
Moderate to strong winds over the weekend have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
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.
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 a suncrust on steep solar aspects.
Southwest through northwest winds have formed thin wind slabs over a crust / surface hoar layer and may propagate farther than expected. Dig down and investigate the bond of new snow before committing to your line.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
In Little Yoho, areas that have a thin snowpack will have weaker basal facets that can still be triggered.&nbsp; Check locally for snowpack depths as thicker areas do not have the same problem.&nbsp;
Moderate to strong winds over the weekend have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
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 remain possible.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
Westerly winds have formed thin wind slabs over a crust layer.
Moderate to strong winds have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
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.
In Little Yoho, areas with a thin snowpack are still a question for forecasters. It is suspected that the deeper facet layers will be more prevalent in these areas . Check locally for snowpack depths as thicker regions do not have the same problem.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Strong S winds have created windslabs at treeline and above. These slabs have been easily triggered by skier loads in steep unsupported terrain. When triggered in certain areas, wind slabs may propagate into large avalanches.
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
Moderate to strong winds have created new windslabs over a mix of surface conditions (facets, surface hoar, crust).
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 weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Thin wind slabs are currently stubborn and a bit old. Some are thinly buried near treeline but slabs still show potential for triggering and are more common in the alpine. These will build and may become touchy over the next two days.
Some thin wind slabs have been triggered in isolated areas over the last few days. These slabs are now a bit old and even a bit buried. Watch for windslabs to develop further with the winds and small amounts of precip forecast for Saturday and Sunday
In Little Yoho, areas with a thin snowpack are still a question for forecasters. It is suspected that the deeper facet layers will be more prevalent in these areas . Check locally for snowpack depths as thicker regions do not have the same problem.
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.
Strong S winds continue to load lee aspects and create windslabs at treeline and above. These slabs have been easily triggered by skier loads in steep unsupported terrain. When triggered, wind slabs may propagate into large avalanches.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
Westerly winds have formed thin wind slabs over a crust layer.
In Little Yoho, areas with a thin snowpack with more developed faceting still raise concern. Many of the areas in this region hold a deeper snowpack where this problem is not a concern. Travelers are advised to investigate snow depths with a probe.
Strong winds last week left widely scoured surfaces with pockets of hard windslab. These appear to be stubborn to human triggering. Strong alpine winds expected Sunday maintaining this problem.
Despite lack of natural activity, it would be wise to assess the strength of the interfaces above &amp; below the October 25 crust before entering committing lines. This layer exists in most skiable slopes and would be severe consequences if triggered.
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.
Strong S winds continue to load lee aspects and create windslabs at treeline and above. These slabs have been easily triggered by skier loads in steep unsupported terrain. When triggered, wind slabs may propagate into large avalanches.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
In Little Yoho, areas with a thin snowpack with more developed faceting still raise concern. Many of the areas in this region hold a deeper snowpack where this problem is not a concern. Travelers are advised to investigate snow depths with a probe.
Despite lack of recent natural activity, this layer is widespread, and would have high consequences if triggered. Triggering is most likely in thin areas, with variable snowpack depth. Use terrain choice and safe practices to minimize consequences.
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.
Strong S winds have created variable wind slabs at tree-line and above. The slab varies from soft/skiable to perfect igloo-block building crud. Expect a range of surface conditions if you go up high today.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
The weak Oct.26 facets and depth hoar at the base of the snowpack have a significant slab (50-130cm thick) sitting above them. The likelihood of triggering this layer has decreased, but if it does get triggered, the avalanche will be large in size.
Old Wind Slabs exist in typical lee ares but be on the lookout for reverse loading creating new Wind Slabs on Northerly aspects.
This layer likely requires a large trigger. Be cautious when transitioning from thick to thin snowpack areas
New snow on Sunday arrived with Strong winds (ranging from SW to N) creating windslabs over a variety of surfaces, including suncrust, surface hoar, and wind pressed areas. While natural activity has tapered, human triggering remains possible.
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.
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.
Strong to Extreme Southerly over the weekend created variable wind slabs at tree-line and above. The slab varies from soft/skiable to perfect igloo-block building crud. Expect a range of surface conditions if you go up high today.
New snow on Sunday arrived with Strong winds (ranging from SW to N) creating windslabs over a variety of surfaces, including suncrust, surface hoar, and wind pressed areas. While natural activity has tapered, human triggering remains possible.
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.
Fresh wind slabs are expected from forecasted snow and winds on Friday.
New snow on Sunday arrived with Strong winds (ranging from SW to N) creating windslabs over a variety of surfaces, including suncrust, surface hoar, and wind pressed areas.
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.
Strong to Extreme Southerly over the weekend created variable wind slabs on specific terrain features in the Alpine and at Tree Line. It's most problematic on South aspects in shallow snowpack areas that are steep, rocky, and unsupported.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Snow is forecasted for the next several days. Expect new snow to bond poorly causing loose avalanches in steep terrain. This problem will transition into a storm slab as snowfall amounts build up over the next 24hrs. Winds will increase snow loading.
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.
New windslabs will be forming with the incoming storm on Saturday. As the winds switch from southwest to northeast on Saturday night, be aware of the potential for reverse loading.
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.
Fresh wind slabs can be expected from forecasted new snow and winds on Friday.
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.
The new snow load may start waking up the Dec 10th deep persistent facet weakness down 60-140 cm. This is of greatest concern in shallow snowpack areas where the basal facets are weakest.
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.
In isolated shallow snowpack areas of Little Yoho the new snow load may wake up the Dec 10th deep persistent facet weakness.
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.
The new snow load may start waking up the deep persistent facet weakness down 80-160 cm. This is of greatest concern in shallow snowpack areas where the basal facets are weakest.
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.
In isolated shallow snowpack areas of Little Yoho the new snow load may wake up the deep persistent facet weakness.
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.
Windslabs have formed with recent new snow and NE winds, and may take longer than usual to bond with cold temperatures.
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.
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.
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.
70cm of storm snow, plus strong variable winds created wind slabs over the weekend. Skiers are find this problem most reactive along ridge crest and cross loaded terrain features.
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.
Last weekends storm snow and strong variable winds created wind slabs in the alpine and exposed areas at tree line. Skiers are find this problem most reactive along ridge crest and cross loaded terrain features.
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.
Windslabs have formed with recent SW winds. Expect reverse loading as the wind swings NE Friday Morning
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.
Last weekend's storm snow and strong variable winds created wind slabs in the alpine and exposed areas at tree line. This problem is most reactive along ridge crest and cross loaded terrain features.
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.
Strong to extreme NE winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust. These slabs can create large avalanches with wide propagations.
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.
Strong to extreme N through E winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust. These slabs are sensitive to human triggering.
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.
Strong to extreme NE winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust. These slabs are sensitive to human triggering.
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.
Ski quality is best in sheltered trees.
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.
Recent strong to extreme NE winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust. These slabs are sensitive to human triggering.
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.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
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.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
Recent strong to extreme NE winds have redistributed storm snow into hard wind slabs and loaded pockets on lee features. On southerly aspects, wind slabs are poorly bonded to a buried crust.
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.
Wind effect in the alpine and tree line. In the right spot you could trigger a windslab.
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.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
Saturday's wind event ravaged the upper snowpack in the Alpine and exposed areas of Tree Line; leaving behind a variety of surface conditions varying from Pencil resistance hard slabs to soft near surface facetting.
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.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
Consistent cold temperatures have faceted the upper snowpack. In steep alpine features loose surface snow can easily entrain mass causing small avalanches. Thin steep rocky terrain is the prime candidate for this problem.
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.
Ongoing moderate winds have created widespread wind affect in the Alpine and exposed areas at Tree Line, making for challenging travel. Windslabs vary from supportive hard slabs to pockets of wind-loaded facets.
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
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Ongoing winds have hammered the alpine and exposed areas at tree line, making for challenging travel conditions. Slabs vary from hard and supportive to pockets of wind-loaded facets. At lower elevations slabs could propagate on buried surface hoar.
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
Ongoing winds have hammered the alpine and exposed areas at tree line, making for challenging travel conditions. Slabs vary from hard and supportive to pockets of wind-loaded facets. At lower elevations slabs could propagate on buried surface hoar.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
Previous strong winds have hammered the alpine and exposed areas at tree line, making for challenging travel conditions. Slabs vary from hard and supportive to pockets of wind-loaded facets. At lower elev slabs could propagate on buried surface hoar.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
Wind slabs will continue to develop on all aspects with winds switching from W to NE on Wednesday.
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.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Previous strong winds have hammered the alpine and exposed areas at tree line. Buried slabs vary from hard and supportive to pockets of wind-loaded facets. At lower elev slabs could propagate on buried surface hoar.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
Sun may act as a trigger to initiate the loose unconsolidated surface snow particularly in steep rocky terrain. Definitely a problem ice climbers should keep on radar where small slides can gain mass particularly in terrain traps.
New snow and Light to Moderate westerly winds have created wind slabs. These slabs have yet to produce anything larger than a size 2.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
New snow and Light to Moderate westerly winds have created wind slabs. These slabs have yet to produce anything larger than a size 2.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
A mix of old and new wind slabs have been found on various aspects that in the short term will be something to watch for in the terrain. 
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Sun may act as a trigger to initiate the loose unconsolidated surface snow particularly in steep rocky terrain. Definitely a problem ice climbers should keep on radar where small slides can gain mass particularly in terrain traps.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
Pockets of reactive wind slab still exist in the alpine and open areas at tree line, though becoming hard to find. But remember, even a small wind slab can have big consequences in the right/wrong terrain feature (steep, rocky, exposed terrain, etc).
A mix of old and new wind slabs have been found on various aspects that in the short term will be something to watch for in the terrain.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Pockets of wind slab still exist in the alpine and open areas at tree line, though becoming hard to find. Even a small wind slab can have big consequences in the right/wrong terrain feature (steep, rocky, exposed terrain, etc).
15cm of settled snow covers facets and surface hoar, the snow is bonding poorly and sluffs easily. Be cautious on solar aspects where the sun can weaken the upper snowpack, especially in steep rocky terrain.
A mix of old and new wind slabs have been found on various aspects that in the short term will be something to watch for in the terrain.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
The sun will act as a trigger to initiate the loose unconsolidated surface snow particularly in steep rocky terrain near and above ice climbs.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
A mix of old and new wind slabs have been found on various aspects that in the short term will be something to watch for in the terrain.
A sustained period of cold weather has driven the faceting process in the upper snowpack creating weak, dry surface snow. In steep terrain, these are sensitive to small natural and human triggers and can quickly gain enough mass to affect travelers.
Wind slabs will continue to develop with moderate to strong westerly winds on Friday, and moderate Easterly winds on Sunday
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 mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain.
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.
Strong SW winds at parkers upper for the last 24 hours, creating wind slabs in immediate lee's.
It is possible to trigger deep slabs in shallow snowpack areas. Terrain management and assessment is critical to a safe day.
A mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain.
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.
Winds slabs formed from recent W winds have now been buried by Saturdays snowfall and may be hard to detect.
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 mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain. While these are more isolated and of smaller size at treeline they still warrant careful terrain selection.
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 mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain. While these are more isolated and of smaller size at treeline they still warrant careful terrain selection.
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.
Strong SW winds blew for 24 hours yesterday in the columbia Icefields area, and have now switched to steady moderate from N. In the southern areas of the bulletin region, expect a cornucopia of windslabs on a variety of aspects.
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 mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain. While these are more isolated and of smaller size at treeline they still warrant careful terrain selection.
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 mix of new wind slabs and old buried slabs have been found on various aspects that continue to be worth watching for in steep terrain. While these are more isolated and of smaller size at treeline they still warrant careful terrain selection.
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Previous moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas, these slabs may be overlying old dormant wind slabs or weak facetted snow.
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Previous moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas, these slabs may be overlying old dormant wind slabs or weak facetted snow.
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
We expect a few lingering windslabs, but for the most part these slabs are old and are likely only to be found in very steep or extreme terrain near wind exposed ridge crests. Pay close attention to the feeling of the surface snow under your feet.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
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.
Moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas, these slabs may be overlying old dormant wind slabs or weak facetted snow.
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.
Moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas, these slabs may be overlying old dormant wind slabs or weak facetted snow.
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.
Moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas. These slabs may be overlying old dormant wind slabs or weak faceted snow.
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.
Moderate to strong winds and cold temperatures have been promoting wind slab development. Reactive wind slabs are occurring in isolated areas. These slabs may be overlying old dormant wind slabs or weak faceted snow.
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.
Previous strong winds and cold temperatures have formed wind slabs. These generally &quot;small&quot; reactive wind slabs can still be found in isolated areas. The slabs may be overlying old dormant wind slabs, and or weak faceted snow.
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.
Previous strong winds and cold temperatures have formed wind slabs. These generally &quot;small&quot; reactive wind slabs can still be found in isolated areas. The slabs may be overlying old dormant wind slabs, and or weak faceted snow.
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.
Winds have shifted from NE to SW on Thursday. Watch for Windslabs on all aspects in exposed terrain.
The basal weaknesses are well bridged in deeper snowpack areas, but there remains the possibility to be surprised in thin snowpack areas.
New snow and moderate Southerly winds have formed wind slabs along lee and cross loaded features. The slabs may be overlying weak faceted snow so watch for shooting cracks, settlements and hollow sounds from the snowpack.
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.
Touchy new slabs can be found in wind loaded areas up to 40cm thick. These slabs will be found sitting on the weak, faceted snow that was previously on the surface and we expect the bond to this snow to be poor.
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.
Touchy new slabs can be found in wind loaded areas up to 40cm thick. These slabs will be found sitting on the weak, faceted snow that was previously on the surface and we expect the bond to this snow to be poor.
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.
30cm of recent snow and moderate Southerly winds have formed wind slabs along lee and cross loaded features. The slabs may be overlying weak faceted snow so watch for shooting cracks, settlements and hollow sounds from the snowpack.
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.
The recent snow is not likely to bond well to crusts and facets and should be a concern if considering riding steep faces or traveling in confined chutes, manage your sluff. If the sun shines today watch for point releases from steep, rocky areas.
Fresh wind slabs will develop through the day on lee features from Strong-Extreme SW winds.
Thin slabs can be found in wind loaded areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and can be triggered by skiers or 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.
Thin slabs can be found in wind loaded areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and can be triggered by skiers or 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. Narrow gullies are where this is most concerning.
Another 10-15cm of new snow today; plus, the 30cm of recent storm snow and moderate winds, will form soft slabs in the Alpine and exposed areas of tree line. The slabs may be overlying weak faceted snow, old wind slabs, or a sun crust.
The recent snow is unlikely to bond well to crusts and facets, and should be a concern if considering riding steep faces or traveling in confined chutes; manage your sluff accordingly.
Fresh wind slabs will continue to grow throughout Monday night, lee to Strong SW winds. Expect these to be larger and more prevalent in the icefields, which is catching the brunt of the storm.
Skiier triggered Loose Dry avalanches increase in sensitivity Monday (steep sheltered areas), with new snowfall overlying loose facets.
New snow and strong SW winds are building slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
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.
New snow and strong SW winds are building slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
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.
25cm of new snow in the last 24 hours, plus the 30cm of recent storm snow, has formed soft slabs in the Alpine and exposed areas of Tree Line. Storm slabs may be overlying weak faceted snow, old wind slabs, or a sun crust.
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.
New snow and strong SW winds have built slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
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.
New snow and strong SW winds have built slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
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.
Fresh windslabs sit on a variety of old surfaces, these will take several days to settle and stabilize.
45-50cm of new snow over the last week has become a cohesive soft slab in the Alpine and exposed areas of Tree Line. Storm slabs may be overlying weak faceted snow, old wind slabs, or a sun crust. The bond to these old surfaces is variable.
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.
Fresh windslabs sit on a variety of old surfaces, these will take several days to settle and stabilize.
New snow and strong SW winds have built variable wind slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
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.
New snow and strong SW winds have built slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
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</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
45-50cm of new snow over the last week has become a cohesive soft slab in the Alpine and exposed areas at tree-line. Storm slabs may be overlying weak faceted snow, old wind slabs, or a sun crust. The bond to these old surfaces is variable.
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.
Fresh windslabs sit on a variety of old surfaces. Winds continue to gust moderate from the SW.
New snow and strong SW winds have built variable wind slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
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.
New snow and strong SW winds have built slabs in open areas above treeline. These slabs are sitting on the weak, faceted snow that was previously on the surface and as a result can run further than expected when triggered.
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.
15-20cm of recent snow has formed windslabs. If the sun makes an appearance during the day, these will become easier to trigger.
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.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep. The storm slab is bonding poorly in areas where sits on weak faceted snow or a sun crust. Strong SW winds will be adding to this slab and may trigger naturals
Fresh wind slabs sit on a variety of old surfaces. Winds continue to gust moderate from the SW.
Natural triggering has abated but human triggering remains a possibility, particularly in steep north facing sheltered terrain.
New snow and strong SW-W winds have built wind slabs in open areas above treeline. In some cases, these slabs sit over the weak faceted snow and have been sensitive to triggering. In may cases, these slabs initiate a loose dry avalanche 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.
New snow and strong SW-W winds have built wind slabs in open areas above treeline. In some cases, these slabs sit over the weak faceted snow and have been sensitive to triggering. In may cases, these slabs initiate a loose dry avalanche 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.
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.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep and is bonding poorly in areas where it sits on weak, faceted snow or on a sun crust.
Fresh wind slabs sit on a variety of old surfaces. Winds continue to gust moderate from the SW.
Watch out for any sunny, steep features. Expecting good recovery to the surface freeze, overnight Saturday. Progressively rising Hazard over the daytime.
Strong SW-W winds have built wind slabs in open areas above treeline. In may cases, these slabs initiate a larger loose dry avalanche as they run. In a few examples these slides have gouged to the deep persistent layers near the base of the snowpack
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.
Strong SW-W winds have built wind slabs in open areas above treeline. In may cases, these slabs initiate a larger loose dry avalanche as they run. In a few examples these slides have gouged to the deep persistent layers near the base of the snowpack
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.
Dry/moist loose avalanches can be easily triggered in steep terrain and gather mass and momentum quickly. Natural and human triggered avalanches are likely on Southerly aspects when the solar radiation is strong.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep and is bonding poorly in areas where it sits on weak, faceted snow or on a sun crust. Rising temperatures will put additional stress on this layer.
Watch out for any sunny, steep features. Expecting some recovery to the surface freeze, overnight Sunday. Progressively rising hazard over the day.
Fresh wind slabs sit on a variety of old surfaces. Winds continue to gust at light to moderate values from the SW.
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.
10-50 cm of snow since March 7 has formed slabs above treeline due to winds and warm temperatures and sits over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
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.
10-50 cm of snow since March 7 has formed slabs above treeline due to winds and warm temperatures. This sits over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
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.
Wind slabs formed on Thursday may still be reactive at higher elevations.
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.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep and is bonding poorly in areas where it sits on weak, faceted snow or on a sun crust. Rising temperatures will put additional stress on this layer.
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.
10-50 cm of snow since March 7 has formed slabs above treeline due to winds and warm temperatures and sits over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
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.
10-50 cm of snow since March 7 has formed slabs above treeline due to winds and warm temperatures and sits over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
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.
At treeline and above the recent snow has settled into a soft slab that is up to 50cm deep and is bonding poorly in areas where it sits on weak, faceted snow or on a sun crust. Rising temperatures will put additional stress on this layer.
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.
10-20 cm settled snow (since Mar 7) has formed slabs above treeline due to winds and warm temperatures. They sit over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
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.
10-20 cm settled snow (since Mar 7) has formed slabs above treeline due to winds and warm temperatures. They sit over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
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.
At tree-line and above, a ~40cm soft slab is bonding poorly to the underlying sun crust, or to facets on shaded aspects. Warm temp's are peeling this slab off the mountains like a mandarin orange peel, very easily and in large pieces...
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.
10-50 cm settled snow (since Mar 7) has formed slabs above treeline due to winds and warm temperatures. They sit over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
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.
10-50 cm settled snow (since Mar 7) has formed slabs above treeline due to winds and warm temperatures. They sit over a variety of weaker surfaces. Natural and skier triggering of this recent snow has occurred in the last several days on all aspects.
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.
At tree-line and above, a ~40cm soft slab is bonding poorly to the underlying sun crust, or to facets on shaded aspects. The prolonged warmth has helped the mtns shed much of the slab, so where it still exists, be wary of its unstable nature.
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.
At tree-line and above, a ~40cm soft slab is bonding poorly to the underlying sun crust, or to facets on shaded aspects. The prolonged warmth has helped the mtns shed much of the slab, so where it still exists, be wary of its unstable nature.
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.
At tree-line and above, a 40cm soft slab has bonded poorly to the underlying facets. This problem is most likely to be found on Northerly aspects in the alpine.
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.
At tree-line and above, a 40cm soft slab has bonded poorly to the underlying facets. This problem is most likely to be found on Northerly aspects in the alpine.
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.
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</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.
At tree-line and above, a 40cm soft slab has bonded poorly to the underlying facets. This problem is most likely to be found on Northerly aspects in the alpine.
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.
Be mindful of the change in wind direction on tuesday night.
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.
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">
Thin soft slabs were formed with the new snow and moderate SW winds yesterday. Expect to find reactive slabs in the immediate lee features above tree-line and along ridges. These slabs will likely be triggered by sun today if it pokes out.
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.
Thin soft slabs were formed with the new snow and moderate SW winds Tuesday. These are found in the immediate lee features at tree-line and above, and are most reactive where they sit on an underlying crust.
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.
Clearing skies and warming temperatures will increase the avalanche activity, especially on solar aspects in the afternoon. The recent snow will quickly loose cohesion with any direct solar inputs causing sluffing and loose wet avalanche activity.
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.
Clearing skies and warming temperatures will increase the avalanche activity, especially on solar aspects in the afternoon. The recent snow will quickly loose cohesion with any direct solar inputs causing sluffing and loose wet avalanche activity.
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</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.
Thin soft slabs were formed with the new snow and moderate SW winds Tuesday. These are found in the immediate lee features at tree-line and above, and are most reactive where they sit on an underlying crust.
Depending where you are, avalanche activity may increase with an increase in solar activity.
Depending where you are, avalanche activity may increase with an increase in solar activity.
Expect a natural cycle of loose snow avalanches from steep solar slopes tomorrow.
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</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
Depending where you are, avalanche activity may increase with an increase in solar activity.
Depending where you are, avalanche activity may increase with an increase in solar activity.
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.
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</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.
New snow on Thursday falling on a hard melt freeze crust could become reactive with daytime warming
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.
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</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.
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.
10cm of new snow, accompanied by mod/strong S'ly winds, has created thin storm slabs in Alpine and Tree-line lee features. These slabs sit on a well-established melt-freeze crust and will likely be reactive to human triggering.
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.
Winds increasing with recent 10-15cm of snow overlying previous crust are potentially forming thin windslabs on lee aspects at upper treeline and higher locations from Southerly winds.
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.
10cm of recent snow accompanied by 25-40km/hr Southerly winds have created wind slabs in Alpine and Tree-line lee features. These slabs sit on a well-established melt-freeze crust and could be sensitive to human triggering.
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.
15cm of recent snow and moderate Southerly winds have created wind slabs in ALP and TL lee features. These slabs sit on a melt-freeze crust and could be sensitive to human triggering. In N ALP a surface hoar layer may be preserved.
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.
Small, reactive windslabs already exist in immediate lees in the Alpine. With strong SW winds Saturday night, this problem may extend down to treeline on Sunday, especially along the Parkway where 5cm of new snowfall is expected overnight.
The new snow will react notably with localized solar input, so position yourself away from steep features while the sun is beating down. This is particularly relevant at higher elevation where recent snowfall amounts are greater. 
The new snow will react notably with localized solar input, so position yourself away from steep features while the sun is beating down. This is particularly relevant at higher elevation where recent snowfall amounts are greater.
Pockets of windslab continue to build in alpine lees. With moderate-strong SW winds Saturday night into Sunday, this problem may now extend down to treeline.
15cm of recent snow and moderate Southerly winds have created wind slabs in alpine lee features. These slabs sit on a melt-freeze crust and could be sensitive to human triggering. A surface hoar layer may be buried ~20cm on Northerly alpine terrain.
Daytime warming, the strong spring sun, and rain will all increase the potential for loose wet avalanches to occur.
Pockets of windslab in immediate lees will be buried by incoming new snow, making them more difficult to manage.
20cm of recent snow and moderate Southerly winds have created wind slabs in alpine lee features. These slabs sit on a melt-freeze crust and could be sensitive to human triggering. A surface hoar layer may be buried ~20cm on Northerly alpine terrain.
Pockets of windslab in immediate lees will be buried by incoming new snow, making them more difficult to manage.
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.
Strong winds and snowfall above treeline on Friday and Saturday will form new windslabs. These will become more reactive if the sun comes out.
Large Sluffs have been observed out of steep alpine terrain from the recent incremental snowfalls.
Up to 20cm of snow is forecasted for the Icefields region Thursday night and into Friday morning. (Very little snow is forecasted for the Maligne and Tonquin areas)
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.
20cm of recent snow and moderate Southerly winds have created wind slabs on specific terrain features in the alpine. These slabs overlie a melt-freeze crust on solar asp and or, surface hoar on polar asp.
Fresh snow and moderate winds could create windslabs in the alpine and at treeline.
Moderate S -W winds have redistributed last week's storm snow into pockets of windslab on alpine and treeline lee features. These slabs overlie  a melt freeze crust on solar aspects and given the right location, surface hoar on northerly aspects.
10cm + of storm snow along with moderate to strong S-SW winds are forming thin storm slabs on alpine and exposed treeline lee slopes. These slabs may be sensitive to human triggering.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">30cm + of storm snow along with moderate to strong S-SW winds, formed storm slabs in the alpine and exposed areas of treeline. These slabs were easily triggered by skiers yesterday, </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/20190414%20Sr%20Video%20Peak.jpg" target="_blank"><span class="s_9255B882">initiating from 50m away.</span></a><span class="s_AA239
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.
Clear weather forecasted for Tuesday will increase the solar input on southerly aspects. This increased heating will likely shed the recent storm snow on steep solar aspects as the day warms up.
Recent snow may begin to slide on solar aspects as the sun makes an appearance and temperatures rise.
Clear weather forecasted for Tuesday will increase the solar input on southerly aspects. This increased heating will likely shed the recent storm snow on steep solar aspects as the day warms up.