There is currently 90-120 cm of snow sitting on top of weak a layer of sugary facets that developed above a crust which formed in early November. It is most likely to be reactive to human triggers on south facing slopes and on steep, shallow, rocky, snowpack areas in the alpine.
Very large avalanches over the past week provide evidence that faceted snow at the ground is a reactive deep persistent weak layer. Observations suggest that this problematic snowpack structure may be more prevalent in colder, shallower areas north and east in the region. Keep in mind that small avalanches and cornice falls have the potential to step-down to this deeper layer, producing large, destructive avalanches.
A crust sits near the base of the snowpack.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"pl5b","text":"On the one hand, there hasn't been any associated avalanche activity in weeks.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"72juq","text":"On the other hand, it's surrounded by weak crystals and still producing hard results in snowpack tests.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"de1m","text":"Although we don't think it presents an avalanche problem under the current conditions, we're reluctant to throw it out altogether, especially with significant accumulations of new snow on the horizon. If it were to rear its head, it would most likely be in shallow, rocky areas in the alpine.","type":"unstyled","depth":0,"inlineStyle
As freezing levels drop, storms slabs will develop at high elevations where dry snow accumulates.
Loose wet avalanche activity may persist in the northeast of the region where temperatures remain elevated Sunday. Pinwheeling is a great indicator of a warming snowpack.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":138,"length":9,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabi
So here's the story... A crust sits near the base of the snowpack.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"abck6","text":"On the one hand, there hasn't been any associated avalanche activity in weeks.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46ikn","text":"On the other hand, it's surrounded by weak crystals and still producing hard results in snowpack tests.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2i8fn","text":"Although we don't think it presents an avalanche problem under the current conditions, we're reluctant to throw it out altogether, especially with new snow on the horizon. If it were to rear its head, it would most likely be in shallow, rocky areas in the alpine.","type":"unstyled","depth":0,"inlineStyle
Very large avalanches over the past week suggest that a buried crust formed in early November and weak snow at the ground are reactive persistent and deep persistent weak layers. We have limited information about the distribution of this snowpack structure in the region. Keep in mind that small avalanches have the potential to step-down to these deeper layers, producing large, destructive avalanches.
Above freezing temperatures and periods of heavy rain may trigger loose wet avalanches. Pinwheeling and rollerballs are good indicators of this type of instability. Avoid steep slopes with saturated snow, as wet loose avalanches can be surprisingly destructive due to their density.
The wet-loose problem will remain in areas where the snowpack is not frozen and/or rain saturates the snowpack.
ingering wind slabs may remain reactive to human triggers on a variety of aspects.
A facet/crust layer (from Nov 5 rains) sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but recently producing large avalanches in shallow rocky areas from explosive control in a neighbouring region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"b5uqv","text":"This layer may become reactive with the new load of snow or if triggered by a smaller avalanche in a step down.  Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
Very large avalanches over the past week provide evidence that faceted snow at the ground is a reactive deep persistent weak layer. Observations suggest that this problematic snowpack structure may be more prevalent in colder, shallower areas north and east in the region. Keep in mind that small avalanches and cornice falls have the potential to step-down to this deeper layer, producing large, destructive avalanches.
Large avalanches earlier this week provided evidence that a buried crust formed in early December and November combined with weak sugary snow at the ground are reactive to large loads and stress to the snowpack. This problematic snowpack structure may be more prevalent in colder, shallower areas North and in the East in the region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ec8v6","text":"Cornice falls or smaller avalanches in motion may have the potential to step-down to these deeper layers, producing large, destructive avalanches.
A crust sits near the base of the snowpack.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e1odc","text":"On the one hand, there hasn't been any associated avalanche activity in weeks.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ev0tr","text":"On the other hand, it's surrounded by weak crystals and still producing hard results in snowpack tests.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7mj8g","text":"Although we don't think it presents an avalanche problem under the current conditions, we're reluctant to throw it out altogether, especially with significant accumulations of new snow on the horizon. If it were to rear its head, it would most likely be in shallow, rocky areas in the alpine.","type":"unstyled","depth":0,"inlineStyle
Large to very large avalanches over the past week provide evidence that a buried crust formed in early November and weak snow at the ground are reactive persistent and deep persistent weak layers. Observations suggest that this problematic snowpack structure may be more prevalent in colder, shallower areas north and east in the region. Keep in mind that storm slab avalanches and cornice falls have the potential to step-down to these deeper layers, producing large, destructive avalanches.
A facet/crust layer sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional hard result in snowpack tests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"df26","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f1qfe","text":"We're curious to see whether the new loading from the current storm will cause it to wake up. Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mu
A facet/crust layer sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional hard result in snowpack tests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"4udl0","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3gijv","text":"We're curious to see whether the new loading from the current storm will cause it to wake up. Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mu
A facet/crust layer (from Nov 5 rains) sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional hard result in snowpack tests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"do7lf","text":"This layer may become reactive with the new load of snow or if triggered by a smaller avalanche in a step down.  Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
In the north of the region (e.g., Duffey Lake), a weak layer of sugary faceted grains around a hard melt-freeze crust sits near the base of the snowpack. There is a lot of uncertainty on the reactivity of this layer - we're keeping it on our radar because we don't have enough information. Be wary of overhead hazards, a large impact (like a cornice failure - see avalanche summary) could trigger the slope below. Keep in mind if this layer is triggered, it will likely produce large avalanches. This problem does not exist in the south of the region.
A facet/crust layer from November rains (Nov 5 Crust) sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"b2g2t","text":"We may see this layer \"wake-up\" with the new load or be triggered by a smaller avalanche in a step down.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":94,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
Triggering wind slab avalanches remains possible at upper elevations, especially on freshly wind loaded terrain features.
Very large avalanches over the past week provide evidence that faceted snow at the ground is a reactive deep persistent weak layer. Observations suggest that this problematic snowpack structure may be more prevalent in colder, shallower areas north and east in the region. Keep in mind that small avalanches and cornice falls have the potential to step-down to this deeper layer, producing large, destructive avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":63,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
40-60 cm of snow sits above a layer of surface hoar and/or crusts. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":39,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
0-50 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
Large avalanches earlier this week provided evidence that a buried crust formed in early December and November combined with weak sugary snow at the ground are reactive to large loads and stress to the snowpack. This problematic snowpack structure may be more prevalent in colder, shallower areas North and in the East in the region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ec8v6","text":"Cornice falls may have the potential to step-down to these deeper layers, producing large, destructive avalanches.
A widespread melt freeze crust from the first week of December exists up to 2500m in places.  New snow from Wednesday night will bury this layer in 30-55cm of recent snow.  This layer has shown signs of reactivity with explosive control work, remote avalanches, and numerous snow-pit results showing easy \"sudden\" or \"pop\" results.
Very large avalanches over the past week provide evidence that faceted snow at the ground is a reactive deep persistent weak layer. Observations suggest that this problematic snowpack structure may be more prevalent in colder, shallower areas north and east in the region. Keep in mind that small avalanches and cornice falls have the potential to step-down to this deeper layer, producing large, destructive avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":63,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
This layer was touchy through the weekend producing large to very large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.  Wind exposed features are expected to be particularly problematic.
A facet/crust layer from November rains (Nov 5 Crust) sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"b2g2t","text":"We may see this layer \"wake-up\" with the new load or be triggered by a smaller avalanche in a step down.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":94,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
Weak snow around the early November crust was a problem earlier this season. The layer is now buried 50-150 cm deep. Recent weather trends suggest it is becoming less likely to trigger a large avalanche on this layer, however given the limited field observations to confirm this it's best to approach big slopes with caution. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b6opl","text":"This layer is most likely to be reactive to human triggers on south facing slopes and on steep, shallow, rocky, snowpack areas in the alpine.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dub35","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7aud4","text":"
A facet/crust layer (from Nov 5 rains) sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but recently producing large avalanches in shallow rocky areas from explosive control in a neighbouring region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"b5uqv","text":"This layer may become reactive with the new load of snow or if triggered by a smaller avalanche in a step down.  Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
A facet/crust layer sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional hard result in snowpack tests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"82aqt","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ci12p","text":"We're curious to see whether the new loading from the current storm will cause it to wake up. Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mu
A crust sits near the base of the snowpack.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fd13i","text":"On the one hand, there hasn't been any associated avalanche activity in weeks.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eaqap","text":"On the other hand, it's surrounded by weak crystals and still producing hard results in snowpack tests.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b2g2t","text":"Although we don't think it presents an avalanche problem under the current conditions, we're reluctant to throw it out altogether, especially with new snow on the horizon. If it were to rear its head, it would most likely be in shallow, rocky areas in the alpine.","type":"unstyled","depth":0,"inlineStyle
A crust exists near the base of the snowpack, and weak, sugary facets have been observed over this crust. We have a lack of decisive data on this layer - it's been showing some results in snowpack tests in some areas, and most reports describe an improving bond to the overlying snow. Although we don't think it presents a problem, without more information we're reluctant to throw it out. The most likely trigger spots are terrain areas with smooth ground cover such as scree slopes, grassy slopes, or rock slabs.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
Large to very large avalanches over the past week provide evidence that a buried crust formed in early November combined with weak sugary snow at the ground are reactive persistent and deep persistent weak layers. Observations suggest that this problematic snowpack structure may be more prevalent in colder, shallower areas North and in the East in the region. Keep in mind that storm slab avalanches and cornice falls have the potential to step-down to these deeper layers, producing large, destructive avalanches.
A facet/crust layer (from Nov 5 rains) sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional hard result in snowpack tests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"b5uqv","text":"This layer may become reactive with the new load of snow or if triggered by a smaller avalanche in a step down.  Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
A facet/crust layer (from Nov 5 rains) sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional hard result in snowpack tests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"do7lf","text":"This layer may become reactive with the new load of snow or if triggered by a smaller avalanche in a step down.  Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
A facet/crust layer from November rains (Nov 5 Crust) sits near the base of the snowpack. On the one hand, there hasn't been any associated avalanche activity in weeks.  On the other hand, it's surrounded by weak crystals and still producing hard results in snowpack tests.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"b2g2t","text":"We may see this layer \"wake-up\" with the new load or be triggered by a smaller avalanche in a step down.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":94,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
A facet/crust layer sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional snowpack test result. We are curious to see whether the weight of the recent snow will awaken this problem. Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mu
A facet/crust layer (from Nov 5 rains) sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional hard result in snowpack tests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"do7lf","text":"This layer may become reactive with the new load of snow or if triggered by a smaller avalanche in a step down.  Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
A crust/facet layer sits near the base of the snowpack. It is surrounded by weak crystals and produces hard results in snowpack tests. In shallow, rocky areas in the alpine, it may remain at a depth triggerable by humans. Last week a natural cornice fall triggered a size 3 avalanche on this layer proving it's still a player. With the cooling temperatures and hardening snowpack, we don't think we will see avalanche activity on it at the moment, but it's definitely still on the radar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eb11","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cnim","text":"
A facet/crust layer sits near the base of the snowpack. For weeks it has sat dormant, showing no avalanche activity but producing the occasional snowpack test result.  Keep in mind that if a storm slab avalanche triggers/steps down to this layer, the resulting avalanche would be large and destructive.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mu
A rain crust from last week is down 40-75cm. This rain crust is widespread and can be found to mountain top throughout the regions.  It appears to be most reactive where a thin layer of sugary facet crystals overlays it. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":7,"length":5,"key":0}],"data":{}},{"key":"8dkvl","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fetpj","text":"In some sheltered treeline locations there is also a buried surface hoar layer that is buried down 35-60cm.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":1}],"data":{}},{"key":"b0t93","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9srun","text":"These layers have shown signs of instability in recent days, including remote avalanches, accidental skier triggered avalanches, cracking and easy sudden snow test results.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crust#crusts-are-hard-layers-of-snow-usually-created-by-liquid"}},"1":{"type":"LINK","mutab
40-60 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
A facet/crust layer from November rains (Nov 5 Crust) sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0}],"data":{}},{"key":"b2g2t","text":"It is most likely to be triggered by humans in shallow, rocky areas or in a step-down from a smaller avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":76,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
A buried layer of surface hoar is now primed for human triggering. The slab rests on a persistent weak layer which has the capacity to  propagate avalanches  across terrain features. Wind exposed features are expected to be particularly volatile.
40-60 cm of snow currently sits above a buried crust from early December. A cohesive slab will likely exist with forecast snow, strong wind, and warming. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":162,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
Weak faceted grains may overly a melt-freeze crust near the base of the snowpack. There is uncertainty on where this layer remains a problem in the region, but large avalanches have recently occurred in the northern half of the region. The most likely area to trigger it would be in thin, rocky snowpack areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":4,"length":16,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
A weak layer of surface hoar down 50-100 cm has been reactive to human triggers in the past week.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Sporadic avalanche activity on these layers this week means there is still potential for avalanches to step down to these layers.
Weak faceted grains near the base of the snowpack have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller wind slab avalanches would also have the potential of stepping down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":5,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
We are uncertain about where the early-November crust has weak faceted grains above it, and if this layer remains as a problem. Our limited information suggests this problem is more likely found around Pine Pass and the eastern slopes of the Rockies. Given our lack of field observations, the prudent choice is to approach any big open slope with caution, especially slopes that are rocky and have variable snowpack depths.
A 20-50 cm thick persistent slab sits above the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches and storm slabs have recently stepped-down to this layer producing size 2 avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":6,"key":0},{"offset":115,"length":12,"key":1}],"data":{}},{"key":"3vpsj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A facet/crust layer from early November sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches. It is most likely to be triggered by humans in shallow, rocky areas or in a step-down from a smaller avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0},{"offset":278,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
This storm may well push the persistent slab problem over the tipping point resulting in large and surprisingly touchy avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
Weak faceted grains near the base of the snowpack have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":5,"length":15,"key":0},{"offset":246,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=+facets#basal-facets"}},"1":{"type":"LINK","mutabilit
This storm may well push the persistent slab problem over the tipping point resulting in large and surprisingly touchy avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
Weak faceted grains may overly a melt-freeze crust near the base of the snowpack. There is uncertainty on where this layer remains a problem in the region, but large avalanches have recently occurred in the northern half of the region. The most likely area to trigger it would be in thin, rocky snowpack areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":4,"length":16,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
40-60 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
A facet/crust layer from early November sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches. It is most likely to be triggered by humans in shallow, rocky areas or in a step-down from a smaller avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0},{"offset":278,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
New snow is falling with moderate to strong southwest winds and the resulting slabs will likely be the most reactive in wind loaded areas in the lee of ridgecrests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":145,"length":3,"key":0}],"data":{}},{"key":"80dbr","text":"New snow is rapidly settling with warm temperatures into a soft slab. Assess how each layer of new storm snow is bonding to previous layers.  Periods of heavy loading overnight Friday may create storm slab instabilities.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"euo8p","text":"Remember that smaller loose stuffs and storm slabs may trigger deeper weak layers in a  step down event.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":88,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=lee#leeward"}},"1":{"type":"LINK","mutabilit
A crust/facet layer sits near the base of the snowpack. It is surrounded by weak crystals and produces hard results in snowpack tests. In shallow, rocky areas in the alpine, it may remain at a depth triggerable by humans. Last week a natural cornice fall triggered a size 3 avalanche on this layer proving it's still a player. With the cooling temperatures and hardening snowpack, we don't think we will see avalanche activity on it at the moment, but it's definitely still on the radar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eb11","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cnim","text":"
40-60 cm of snow sits above a layer of surface hoar and/or crusts from early December. The new storm snow could easily step down to this interface, with surprising propagation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":39,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A weak layer of surface hoar  or crust layer from early December is now down 40-60 cm. Storm slab avalanches have and may easily step down to this layer, with surprising propagation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":16,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A weak layer of surface hoar  or crust layer from early December is now down 40-60 cm. Storm slab avalanches have and may easily step down to this layer, with surprising propagation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":16,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A crust/facet layer sits near the base of the snowpack. It is surrounded by weak crystals and produces hard results in snowpack tests. In shallow, rocky areas in the alpine, it may remain at a depth triggerable by humans. Last week a natural cornice fall triggered a size 3 avalanche on this layer proving it's still a player. With the cooling temperatures and hardening snowpack, we don't think we will see avalanche activity on it at the moment, but it's definitely still on the radar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eb11","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cnim","text":"
Cornice falls or smaller avalanches in motion may have the potential to step-down to these deeper layers, producing large, destructive avalanches.
A weak layer of surface hoar  or crust layer from early December is now down 40-80 cm. Storm slab avalanches may easily step down to this layer, with surprising propagation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":16,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6de29","text":"Recent winds from a variety of directions have formed wind slabs on typically windward features at treeline and above. Use caution when transitioning into wind affected terrain.
A facet/crust layer from early November sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches. It is most likely to be triggered by humans in shallow, rocky areas or in a step-down from a smaller avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0},{"offset":278,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
0-50 cm of snow currently sits above a buried crust from early December. A cohesive slab will likely exist with forecast snow, strong wind, and warming. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":162,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
0-50 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
This layer has reached a tipping point. Depending on elevation and aspect, 40-100 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. Monday night's storm may add increased vigor to this problem. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A powerful storm will cross the region Monday and Monday night. Snowfall totals by Monday 4 PM are expected to be 10 to 20 cm, with another 20 to 40 cm expected Monday night. Storm and wind slabs will build over the day and will likely be reactive to riders.
We are uncertain about where the early-November crust has weak faceted grains above it, and if this layer remains as a problem. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fmob4","text":"Our limited information suggests this problem is more likely found around Pine Pass and the eastern slopes of the Rockies. Given our lack of field observations, the prudent choice is to approach any big open slope with caution, especially slopes that are rocky and have variable snowpack depths.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind.
A widespread melt freeze crust from the first week of December exists up to 2500m in places.  This layer extends to 2200m and can be felt as a thick crust n the snow.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":25,"length":5,"key":0}],"data":{}},{"key":"57v6c","text":"Another persistent layer of surface hoar crystals developed in the subsequent clear spell.  This layer is most intact in sheltered treeline locations.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":28,"length":12,"key":1}],"data":{}},{"key":"fnici","text":"On Friday morning the layers will be buried by 35-65cm of snow.  Additional forecast snowfall of 20-50cm on Friday will increase the load, making this layer likely to \"wake-up\" in natural, human triggered and step-down avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ahqg","text":"This layer has shown signs of reactivity with explosive control work, remote avalanches, and numerous snow-pit results showing easy \"sudden\" or \"pop\" results.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crusts#crusts-are-hard-layers-of-snow-usually-created-by-liquid"}},"1":{"type":"LINK","mutab
A facet/crust layer from early November sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches. It is most likely to be triggered by humans in shallow, rocky areas or in a step-down from a smaller avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0},{"offset":278,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
A rain crust from the first week of December is now buried 50-75cm.  It has shown varying results in snow pit tests and may have a thin layer of sugary facet crystals above it.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bo51k","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"535a3","text":"In sheltered treeline locations there may also be a surface hoar crystals from a period of clear weather that is also buried 50-75cm.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gb2u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7539m","text":"Increasing load and slab properties on these weak layers may cause them to \"wake-up\" and the resulting avalanches would be large.
A rain crust from last week is down 30-70cm. This rain crust is widespread and can be found to mountain top throughout the regions.  It appears to be most reactive on southern aspects where a thin layer of sugary facet crystals overlays it. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":7,"length":5,"key":0},{"offset":176,"length":7,"key":1}],"data":{}},{"key":"8dkvl","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fetpj","text":"In some sheltered treeline locations there is also a buried surface hoar layer that is buried down 25-60cm.  This weak layer has shown most signs of reactivity on northern aspects.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":60,"length":12,"key":2},{"offset":172,"length":7,"key":3}],"data":{}},{"key":"b0t93","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9srun","text":"These layers have shown signs of instability in recent days, including remote avalanches, accidental skier triggered avalanches, cracking and easy sudden snow test results.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crust#crusts-are-hard-layers-of-snow-usually-created-by-liquid"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary/terms/aspect"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"3":{"type
We are uncertain about where the early-November crust has weak faceted grains above it, and if this layer remains as a problem. Our limited information suggests this problem is more likely found around Pine Pass and the eastern slopes of the Rockies. Given our lack of field observations, the prudent choice is to approach any big open slope with caution, especially slopes that are rocky and have variable snowpack depths.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6de29","text":"Recent winds from a variety of directions have formed wind slabs on typically windward features at treeline and above. Use caution when transitioning into wind affected terrain.
Weak faceted grains near the base of the snowpack have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller wind slab avalanches would also have the potential of stepping down to this layer.
In the north of the region, a crust/facet layer sits near the base of the snowpack. It is surrounded by weak crystals and produces hard results in snowpack tests. In shallow, rocky areas in the alpine, it may remain at a depth triggerable by humans. On December 1, a natural cornice fall triggered a size 3 avalanche on this layer proving it is triggerable by large loads. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ckmi","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a4f8c","text":"This layer is not a problem in the south of the region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eb11","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cnim","text":"
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f046h","text":"Recent winds from a variety of directions have reverse loaded some slopes, creating wind slabs on typically windward features at treeline and above.
Weak faceted grains may overly a melt-freeze crust near the base of the snowpack. There is uncertainty on where this layer remains a problem in the region, but large avalanches have recently occurred in the northern half of the region. The most likely area to trigger it would be in thin, rocky snowpack areas.
A storm slab problem will develop as up 20 cm fresh snow falls by Saturday morning. Southwesterly winds will encourage slab development.
We are uncertain about where the early-November crust has weak faceted grains above it, and if this layer remains as a problem. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fmob4","text":"Our limited information suggests this problem is more likely found around Pine Pass and the eastern slopes of the Rockies. Given our lack of field observations, the prudent choice is to approach any big open slope with caution, especially slopes that are rocky and have variable snowpack depths.
Weak faceted grains near the base of the snowpack have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller wind slab avalanches would also have the potential of stepping down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":5,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
Weak faceted grains may overly a melt-freeze crust near the base of the snowpack. There is uncertainty on where this layer remains a problem in the region, but large avalanches have recently occurred in the northern half of the region. The most likely area to trigger it would be in thin, rocky snowpack areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":4,"length":16,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
A facet/crust layer from early November sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches. It is most likely to be triggered by humans in shallow, rocky areas or in a step-down from a smaller avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0},{"offset":278,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
40-60 cm of snow sits above a layer of surface hoar and/or crusts. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":39,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A facet/crust layer from early November sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches. It is most likely to be triggered by humans in shallow, rocky areas or in a step-down from a smaller avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0},{"offset":278,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
I'm not sure if this surface hoar and crust combo extends into the alpine. However at lower elevations it is reactive down 50 to 70cm below the surface.
his layer has reached a tipping point in parts of the region. 40-70 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":167,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
Weak faceted grains may overly a melt-freeze crust near the base of the snowpack. There is uncertainty on where this layer remains a problem in the region, but large avalanches have recently occurred in the northern half of the region. The most likely area to trigger it would be in thin, rocky snowpack areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":4,"length":16,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
A widespread melt freeze crust from the first week of December extends to 2200m and can be felt as a thick crust in the snow.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":25,"length":5,"key":0}],"data":{}},{"key":"57v6c","text":"Another persistent layer of surface hoar crystals developed in the subsequent clear spell.  This layer is most intact in sheltered treeline locations.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":28,"length":12,"key":1}],"data":{}},{"key":"fnici","text":"On Friday morning the layers will be buried by 40-80cm of snow, more in heavily wind loaded areas.Be especially caution of thin to fat areas, where triggering a large destructive avalanche is possible.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ahqg","text":"These layers have shown signs of instability in recent days, including large avalanches from explosive control, human triggered avalanches, step down avalanches, cracking and easy sudden snow test results.  As these layers are more deeply buried, they may be less predictable to trigger but the resultant avalanche will be more destructive.  Additionally, smaller loose snow \"sluffing\" or a small slab avalanche may trigger this layer in a step down event.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":440,"length":9,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crusts#crusts-are-hard-layers-of-snow-usually-created-by-liquid"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"2":{"type":"LINK","mutabilit
More snow is expected Saturday night into Sunday morning, with strong southwest wind. Use particular caution immediately adjacent to ridges, where the slabs will likely be thickest and touchiest. The storm snow may also be touchy in sheltered terrain features, so check for the bond of the snow prior to committing to avalanche terrain.
This layer has reached a tipping point. Depending on elevation and aspect, 40-100 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
A facet/crust layer from early November sits near the base of the snowpack. This layer has shown signs of recent reactivity with explosive control in shallow rocky locations producing large avalanches. It is most likely to be triggered by humans in shallow, rocky areas or in a step-down from a smaller avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":2,"length":17,"key":0},{"offset":278,"length":9,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facet#facetcrust-layer"}},"1":{"type":"LINK","mutabilit
A couple problematic layers exist around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Large avalanches have been triggered on these layers. The likelihood of triggering them will increase with further snow load on Saturday night.
Weak faceted grains near the base of the snowpack have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":5,"length":15,"key":0},{"offset":246,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=+facets#basal-facets"}},"1":{"type":"LINK","mutabilit
Storm slabs to size 2 continue to release naturally and remain sensitive to human triggering.  The new snow from Saturday night may increase reactivity.
A couple problematic layers exist around 40 to 80 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There has not been notable avalanche activity on these layers but Saturday night's snow accumulation will increase the likelihood of triggering them.
Weak faceted grains may overly a melt-freeze crust near the base of the snowpack. There is uncertainty on where this layer remains a problem in the region, but large avalanches have recently occurred in the northern half of the region. The most likely area to trigger it would be in thin, rocky snowpack areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":4,"length":16,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
A crust that was buried in early December is now down 80-120 cm in the alpine but is closer to the surface at and below treeline elevations. Around this crust are facets and potentially surface hoar in sheltered areas. Human triggered avalanches and storm slabs may step down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":163,"length":6,"key":0},{"offset":186,"length":12,"key":1}],"data":{}},{"key":"8jopp","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A buried layer of surface hoar is now primed for human triggering. Monday night's storm is certain to add increased vigor to this problem. The slab rests on a persistent weak layer which has the capacity to  propagate avalanches  across terrain features. Wind exposed features are expected to be particularly volatile.
A crust that was buried in early December is now down 80-120 cm in the alpine but is closer to the surface at and below treeline elevations. Around this crust are facets and potentially surface hoar in sheltered areas. Human triggered avalanches and storm slabs may step down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":163,"length":6,"key":0},{"offset":186,"length":12,"key":1}],"data":{}},{"key":"8jopp","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
his layer has reached a tipping point in parts of the region. 40-70 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":167,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
Storm slabs to size 2 continue to release naturally and remain sensitive to human triggering.
A couple problematic layers exist around 40 to 80 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There has not been notable avalanche activity on these layers but Monday's storm could be the tipping point in the south of the region.
This storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
A rain crust from the first week of December is now buried 40-75cm.  It has shown varying results in snow pit tests and may have a thin layer of sugary facet crystals above it.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"535a3","text":"In sheltered treeline locations there may also be a surface hoar crystals from a period of clear weather that is also buried 50-75cm.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gb2u","text":"These layers have shown signs of instability in recent days, including intentionally triggered avalanches, accidental skier triggered avalanches, cracking and easy sudden snow test results.  As these layers are more deeply buried, they may be harder to trigger but the resultant avalanche will be more destructive.  Smaller loose snow \"sluffing\" or a small slab avalanche may trigger this layer in a step down event. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":400,"length":9,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
Weak faceted grains may overly a melt-freeze crust near the base of the snowpack. There is uncertainty on where this layer remains a problem in the region, but large avalanches have recently occurred in the northern half of the region. The most likely area to trigger it would be in thin, rocky snowpack areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":4,"length":16,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","
his layer has reached a tipping point in parts of the region. 70-110 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":159,"length":7,"key":0},{"offset":168,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
This storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
A couple problematic layers exist around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Large avalanches have been triggered on these layers.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
Weak faceted grains near the base of the snowpack have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":5,"length":15,"key":0},{"offset":246,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=+facets#basal-facets"}},"1":{"type":"LINK","mutabilit
A buried layer of surface hoar is now primed for human triggering. This layer is thought to be widespread and was quite sensitive to triggering before Saturday Night's big storm. This interface is capable of producing large to very large avalanches that are capable of connecting bigger pieces of terrain.
Depending on elevation and aspect, 50-100 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":118,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
This layer was touchy through the weekend producing large to very large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.  Wind exposed features are expected to be particularly problematic.
0-50 cm of snow currently sits above a buried crust from early December. Sugary, facets above and/or below the crust may weaken the bond and the persistent slab may become reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":82,"length":7,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. Monday night's storm is certain to add increased vigor to this problem. The slab rests on  a persistent weak layer which has the capacity to propagate avalanches  across terrain features. Wind exposed features are expected to be  particularly volatile.
The recent 30 to 40 cm of snow will take some time to stabilize. The snow fell with strong and variable wind, so deep and touchy deposits are likely found near ridges too. Don't let good visibility lure you into dangerous avalanche terrain.
his layer has reached a tipping point in parts of the region. 70-110 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":159,"length":7,"key":0},{"offset":168,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
A buried layer of surface hoar is now primed for human triggering. The slab rests on a persistent weak layer which has the capacity to  propagate avalanches across terrain features. A crust that formed in November is near the base of the snowpack is also a concern for human triggering.
The recent 30 to 40 cm of snow may take a bit longer to bond to the snowpack. The snow fell with strong and variable wind, so deep and touchy deposits are likely found near ridges too. Don't let good visibility lure you into dangerous avalanche terrain.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Where these weak layers exist, they are at a prime depth for humans to trigger them. Large avalanches have recently been triggered on these layers in the north of the region. Recent reports suggest the weak layers may be less prevalent in the south of the region, but they may still exist in localized pockets.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but they may still exist in localized pockets. There is uncertainty in how warm alpine air will affect the snowpack. It is possible that the warming may increase the potential of humans triggering these layers.
This layer was touchy through the weekend producing large to very large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.  Wind exposed features are expected to be particularly problematic.
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.
20-50 cm below the surface sits the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches and storm slabs have recently stepped-down to this layer producing size 2 avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":80,"length":6,"key":0},{"offset":103,"length":12,"key":1}],"data":{}},{"key":"3vpsj","text":"Basal facets have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":2},{"offset":209,"length":13,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar","target":"_blank","url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"3":{"type":"LINK","mutabilit
A weak layer may exist around 50 to 100 cm deep, composed of weak and sugary faceted grains above a hard melt-freeze crust. It has been over a week since the last reported avalanche on this layer, but the possibility remains of triggering it where it exists.
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
A couple problematic layers exist around 40 to 90 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Where these layers exist, they are at a prime depth for humans to trigger them.
A couple problematic layers exist around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The possibility exists that humans could trigger this layer where it exists in the mountains.
We are expecting to wake up to snow accumulations of around 30 to 40 cm by Tuesday morning. Strong wind from variable directions may produce even deeper pockets. This snow will be reactive to riders and need time to bond to the snowpack. Don't let good visibility lure you into dangerous avalanche terrain.
A a variable but reactive weak layer exists a bit deeper than our recent storm snow. Depending on your elevation and location in the region, it may present as either surface hoar (especially reactive) or a mix of facets and crust (not much better!) Wind or storm slab releases may step down to this layer to create even larger avalanches.
A couple problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
A couple problematic layers exist around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A warming trend is forecast and there is uncertainty in how it will affect the snowpack. It is possible that the warming may make it more possible for humans to trigger these layers.
Small inputs of recent snow with overnight wind is keeping the windslab problem fresh. Fresh slabs will be especially sensitive when touched by the sun for the first time.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6qhbv","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f61os","text":"Older wind slabs are taking time to bond to underlying snow and may be found on a variety of aspects due to previous wind from various directions.
eak layers of feathery surface hoar and/or sugary faceted grains above a hard melt-freeze crust remain buried in the snowpack around 40 to 90 cm deep. Although these layers are slowly bonding to the snowpack, the possibility remains that a rider could trigger them.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"deiup","text":"
Weak layers of feathery surface hoar and/or sugary faceted grains may be found above a hard melt-freeze crust around 50 to 100 cm deep. Although avalanche activity hasn't been reported on these weak layers for over a week, the possibility remains that a rider could trigger them, where they exist.
A couple of problematic layers may be found around 50 to 150 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
A couple problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
30-50 cm of recent snow has been redistributed at upper elevations by overnight wind from the southwest. Recent snow may become increasingly sensitive to triggering when touched by the sun for the first time.
ingering wind slabs may remain reactive to human triggers on a variety of aspects.
Higher elevation terrain is heavily wind affected, with wind slabs likely found on north and east facing slopes.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
This layer has reached a tipping point. Depending on elevation and aspect, 80-150 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
A weak layer of surface hoar is down 40-60 cm and seems to be very reactive to human triggers in the Nass Valley. At the moment the reports are localized. I'm uncertain where else it exists regionally. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":15,"length":13,"key":0}],"data":{}},{"key":"ghtc","text":"A crust that was buried in early December is now down 80-120 cm and counting.  Around this crust are facets and potentially surface hoar in sheltered areas. Human triggered avalanches and storm slabs may step down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":6,"key":1}],"data":{}},{"key":"8jopp","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#
0-100 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs can produce large destructive avalanches.  Although naturally triggered avalanches have tapered, it remains possible to tigger this layer in thin to fat zones, with a cornice collapse, with a step-down avalanche or on slopes that have received significant wind transport.  This layer appears to be more concerning above 1700m and on northerly aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":96,"length":7,"key":0},{"offset":105,"length":12,"key":1},{"offset":347,"length":9,"key":2}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=persistent+weak+laye#surface-hoar"}},"2":{"type":"LINK","mutabilit
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
This layer reached a tipping point with recent new snow as evidenced by the recent natural avalanche cycle.  Although naturally triggered avalanches have tapered, it remains possible to tigger this layer in thin to fat zones, with a step-down avalanche or on slopes that have received significant wind transport.  Depending on elevation and aspect, 60-150 cm of snow currently sits above buried weak layers from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs remain reactive, especially with large triggers or in a shallow snowpack.  This layer appears to be more concerning above 1700m and on northerly aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":233,"length":9,"key":0},{"offset":436,"length":7,"key":1},{"offset":448,"length":12,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=step+down#step-down-avalanche"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"2":{"type":"LINK","mutability":"
A 20-50 cm thick persistent slab sits above the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches have recently stepped-down to this layer producing size 2 avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":6,"key":0},{"offset":115,"length":12,"key":1}],"data":{}},{"key":"3vpsj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A weak layer of surface hoar is buried 40-70cm below recent storm snow.  It was more reactive in the Nass Valley, but also reported at ridgecrests and below in the Shames area. At the moment the reports are localized, may include two different layers & we are unclear where else it exists regionally. New snow is not expected to bond well to this surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":15,"length":13,"key":0}],"data":{}},{"key":"ghtc","text":"A crust that was buried in early December is now down 90-200 cm and counting.  Around this crust are facets and potentially surface hoar in sheltered areas. Human triggered avalanches and storm slabs may step down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":6,"key":1}],"data":{}},{"key":"8jopp","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#
A 30-70 cm thick persistent slab sits above the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches have recently stepped-down to this layer producing size 2 avalanches in the last week.  This bond is gaining strength, but may still be reactive in steep, convex or unsupported terrain or in a step-down avalanche.    ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":6,"key":0},{"offset":115,"length":12,"key":1},{"offset":368,"length":9,"key":2}],"data":{}},{"key":"3vpsj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar","target":"_blank","url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"2":{"type":"LINK","mutabilit
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
Watch for new snow and wind to form reactive slabs on leeward terrain in the alpine and near ridgetops.
Fresh snow with moderate to strong southwest winds will be forming fresh storm slabs. These slabs may be the most reactive in wind loaded areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9d0kt","text":"Keep in mind that this fresh snow could also be hiding wind slabs that may still be reactive to human triggers.
Wind slabs in motion and cornice falls have recently produced some very large avalanches failing on a crust down around 150 cm. Human triggering of this layer is most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Shifting winds have redistributed recent snow into wind slabs on a range of aspects at higher elevations. Remain cautious where wind transport appears recent and where upside-down snow quality is evident.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":168,"length":11,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK"
A couple of problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust.  With the addition of a significant load of new snow, avalanches may run naturally on these layers on Friday.
Wind loaded pockets below ridge crests and rollovers may be reactive to human triggers. Watch for localized reverse-loading on south-facing slopes due to recent northerly winds.
Weak layers of feathery surface hoar and/or sugary faceted grains above a hard melt-freeze crust remain buried in the snowpack around 50 to 100 cm deep. Although avalanche activity hasn't been reported on these weak layers for over a week, the possibility remains that a rider could trigger them, where they exist.
Lingering wind slabs may remain reactive to human triggers on a variety of aspects.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Lingering wind slabs may remain reactive to human triggers on a variety of aspects.
A couple of problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
A 30-70 cm thick persistent slab sits above the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches have stepped-down to this layer producing size 2 avalanches in the last week.  This bond is gaining strength, but may still be reactive in steep, convex or unsupported terrain or in a step-down avalanche or cornice collapse.    ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":6,"key":0},{"offset":115,"length":12,"key":1},{"offset":359,"length":9,"key":2}],"data":{}},{"key":"3vpsj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar","target":"_blank","url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"2":{"type":"LINK","mutabilit
0-100 cm of snow currently sits above a weak layer from early December. Combinations of a  crust, sugary facets , and/or surface hoar mean persistent slabs can produce large destructive avalanches.   It remains possible to tigger this layer in thin to fat zones, with a cornice collapse, with a step-down avalanche or on slopes that have received significant wind transport.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":91,"length":6,"key":0},{"offset":106,"length":7,"key":1},{"offset":122,"length":12,"key":2},{"offset":296,"length":9,"key":3}],"data":{}},{"key":"5jdlq","text":"In very shallow snowpacks, basal facets and a crust / facet layer from early November remain on our radar.   Large and very large avalanches were reported on this layer last week from one of our nearest neighbours.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crust#crusts"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=persistent+weak+laye#surface-hoar"}},"3":{"type":"LINK","mutabilit
Wind loaded pockets below ridge crests and rollovers may be reactive to human triggers. Watch for localized reverse-loading on south-facing slopes due to recent northerly winds.
A weak layer composed of weak and sugary faceted grains above a hard melt-freeze crust exists around 60 to 100 cm deep. It has been over a week since the last reported avalanche on this layer, but the likelihood of triggering it may increase during this stormy period.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
A weak layer of surface hoar down 40-90 cm. has been reactive to human triggers, resulting in large avalanches.
A 30-70 cm thick persistent slab sits above the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches have stepped-down to this layer producing size 2 avalanches in the last week.  This bond is gaining strength, but may still be reactive in steep, convex or unsupported terrain or in a step-down avalanche or cornice collapse.    ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":6,"key":0},{"offset":115,"length":12,"key":1},{"offset":359,"length":9,"key":2}],"data":{}},{"key":"3vpsj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar","target":"_blank","url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"2":{"type":"LINK","mutabilit
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Weak layers of surface hoar and/or faceted grains overly a hard melt-freeze crust around 60 to 80 cm deep. New snow loads before Christmas pushed the persistent slab problem over the tipping point resulting in large avalanches. Although the likelihood of triggering a persistent slab avalanche is decreasing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Lingering wind slabs may remain reactive to human triggers on a variety of aspects.
A couple problematic layers may be found around 50 to 120 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There remains potential for storm slab avalanches to step down to these layers, resulting in large and destructive avalanches.
Wind loaded pockets below ridge crests and rollovers may be reactive to human triggers. Watch for localized reverse-loading on south-facing slopes due to recent northerly winds.
A 30-80 cm thick persistent slab sits above the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches have stepped-down to this layer producing large avalanches in the last week.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":6,"key":0},{"offset":115,"length":12,"key":1}],"data":{}},{"key":"3vpsj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on two persistent weak layer which has the capacity to propagate avalanches across terrain features.
Watch for new snow and wind to form reactive slabs on leeward terrain in the alpine and near ridgetops.
Numerous weak layers may exist in the top half of the snowpack, including surface hoar and faceted grains over a melt-freeze crust. These layers were recently triggered in riding areas north of Terrace and the likelihood of avalanches on these layers will increase during this stormy period.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches.   ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"56fpu","text":"This problem can be avoided through conservative terrain choices.
Winds have shifted from southwesterly to northerly. Watch for reverse-loading on south-facing slopes in areas where winds are sufficiently strong to move snow around.
Lingering wind slabs may remain reactive to human triggers on a variety of aspects.
Higher elevation terrain is heavily wind affected.  While wind slabs may be found on all aspects, north and east facing slopes are likely to be most problematic.
The heavy load of storm snow could be stressing weak layers 100-200 cm beneath the surface and produce very large avalanches that run to the ends of avalanche paths.
Two persistent weak layers buried in early/mid-December are now 100 to 180 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Depending on elevation and aspect, 40-150 cm of snow currently sits above buried weak layers from early December. Buried surface hoar and sugary facets  around the crust mean persistent slabs remain on our radar and may be triggered with large triggers or in a shallow snowpack.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":121,"length":12,"key":0},{"offset":145,"length":7,"key":1},{"offset":164,"length":5,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=persistent+weak+laye#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"2":{"type":
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
A couple problematic layers may be found around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. There is uncertainty in how warm alpine air will affect the snowpack. It is possible that the warming may increase the potential of humans triggering these layers.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
The last storm pushed the persistent slab problem over the tipping point resulting in very large avalanches Saturday & Sunday. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Wind exposed features are expected to be particularly volatile.
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on two persistent weak layer which has the capacity to propagate avalanches across terrain features.
The recent 30 to 40 cm of snow may take a bit longer to bond to the snowpack. The snow fell with strong and variable wind, so deep and touchy deposits are likely found near ridges too. Don't let good visibility lure you into dangerous avalanche terrain.
This layer has reached a tipping point. Depending on elevation and aspect, 80-150 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":158,"length":7,"key":0},{"offset":170,"length":12,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
This layer was touchy through last weekend producing large avalanches. The slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features.
A slab rests on a persistent weak layer which has the capacity to  propagate avalanches across terrain features. A weak layer of surface hoar buried in the middle of the snowpack as well as a crust near the base of the snowpack are both a concern for human triggering.
0-100 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":96,"length":7,"key":0},{"offset":105,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
A weak layer of surface hoar is down 60-100 cm and seems to be very reactive in the Nass Valley. At the moment the reports are localized. I'm uncertain where else it exists regionally. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":15,"length":13,"key":0}],"data":{}},{"key":"ghtc","text":"A crust that was buried in early December is now down 90-200 cm and counting.  Around this crust are facets and potentially surface hoar in sheltered areas. Human triggered avalanches and storm slabs may step down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":6,"key":1}],"data":{}},{"key":"8jopp","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#
A 20-50 cm thick persistent slab sits above the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches have recently stepped-down to this layer producing size 2 avalanches in the last week.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":6,"key":0},{"offset":115,"length":12,"key":1}],"data":{}},{"key":"3vpsj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
A weak layer of surface hoar down 50-100 cm has been reactive to human triggers, resulting in large avalanches.
Shifting winds have redistributed recent snow into wind slabs on a range of aspects at higher elevations. These should be on a positive track toward stabilizing, but remain cautious where wind transport appears recent and where upside-down snow quality is evident.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":228,"length":11,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK"
A 20-60 cm thick persistent slab sits above the early December crust. Around this crust are facets and potentially surface hoar in sheltered areas. Human-triggered avalanches have recently stepped-down to this layer producing size 2 avalanches in the last week.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":92,"length":6,"key":0},{"offset":115,"length":12,"key":1}],"data":{}},{"key":"3vpsj","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=surface+hoar#surface
Weak layers of surface hoar and/or faceted grains may be found above a hard melt-freeze crust. Recent reports suggest the weak layers may be less prevalent in the south of the region, but still exist in localized pockets.
A weak layer of surface hoar is buried 40-70cm below recent storm snow.  A surface hoar layer has been reactive in the Nass Valley as well as in the Shames area, and likely exists in most sheltered reeling and below treeline regions. A crust that was buried in early December is now down 90-200 cm and counting.  Around this crust are facets and potentially surface hoar in sheltered areas.  Step-down avalanches are a significant possibility where a small wind slab or cornice fall may trigger a large and destructive avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":15,"length":13,"key":0},{"offset":335,"length":6,"key":1},{"offset":392,"length":9,"key":2},{"offset":470,"length":7,"key":3}],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=step+down#step-down-avalanche"}},"3":{"type":"LIN
0-100 cm of snow currently sits above a weak layer from early December. Combinations of sugary facets , surface hoar and/or a crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":96,"length":7,"key":0},{"offset":105,"length":12,"key":1}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"
This layer reached a tipping point with recent new snow as evidenced by the recent natural avalanche cycle.  Although naturally triggered avalanches have tapered, it remains possible to tigger this layer in thin to fat zones, with a step-down avalanche or on slopes that have received significant wind transport.  Depending on elevation and aspect, 80-150 cm of snow currently sits above a buried crust from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs are likely reactive, especially to human triggers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":233,"length":9,"key":0},{"offset":432,"length":7,"key":1},{"offset":444,"length":12,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=step+down#step-down-avalanche"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"2":{"type":"LINK","mutability":"
A couple problematic layers may be found around 50 to 100 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust.
A slab rests on a persistent weak layer which has the capacity to  propagate avalanches across terrain features. A weak layer of surface hoar buried in the middle of the snowpack as well as a crust near the base of the snowpack are both a concern for human triggering.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Numerous weak layers may exist in the top half of the snowpack, including surface hoar and faceted grains over a melt-freeze crust. These layers were recently triggered in riding areas north of Terrace and the likelihood remains for avalanche activity anywhere these layers exist.
Shifting winds have redistributed recent snow into wind slabs on a range of aspects at higher elevations. Remain cautious where wind transport appears recent and where upside-down snow quality is evident.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":168,"length":11,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK"
Recent storms have pushed the persistent slab problem over the tipping point resulting in very large avalanches. A slab rests on two persistent weak layer which has the capacity to propagate avalanches across terrain features.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Numerous weak layers may exist in the top half of the snowpack, including surface hoar and faceted grains over a melt-freeze crust. These layers were recently triggered in riding areas north of Terrace and the likelihood of avalanches across the region will increase during this stormy period.
Previous to this weekend's storm, a buried persistent weak layer has been observed throughout the region 30 to 80 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes.  As the weekend storm progresses, a natural avalanche cycle may begin that could easily include very large persistent slab avalanches.  It will be a good test in the long run, but this is a time to avoid avalanche terrain while the snowpack tries to sort itself out.
Significant variability exists with buried weak layers.  A weak layer of surface hoar is buried 50-90 cm below recent storm snow and has been found in the Shames area up to ridgecrest & elsewhere.  A deeper surface hoar and crust /facet layer was buried in earlier in December and is down 90-200 cm.  Wide propagation and step-down avalanches are a significant possibility with these layers, as was evident in the recent Beaupre avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":72,"length":13,"key":0},{"offset":231,"length":5,"key":1},{"offset":322,"length":9,"key":2}],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"2":{"type":"LINK","mutabilit
A weak layer of surface hoar is buried 30-60cm below recent storm snow.  It seems to be very reactive in the Nass Valley, but also reported at ridgecrests and below in the Shames area. At the moment the reports are localized, likely includes two different layers & we are unclear where else it exists regionally. New snow is not expected to bond well to this surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":15,"length":13,"key":0}],"data":{}},{"key":"ghtc","text":"A crust that was buried in early December is now down 90-200 cm and counting.  Around this crust are facets and potentially surface hoar in sheltered areas. Human triggered avalanches and storm slabs may step down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":6,"key":1}],"data":{}},{"key":"8jopp","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#
Weak layers of feathery surface hoar and/or sugary faceted grains may be found above a hard melt-freeze crust around 50 to 100 cm deep. Although avalanche activity hasn't been reported on these weak layers for over a week, the likelihood of triggering them may increase during this stormy period.
Wind slabs may be found on a variety of aspects due to shifting wind directions.
ingering wind slabs may remain reactive to human triggers on a variety of aspects.
0-100 cm of snow currently sits above a weak layer made up of a thick crust, sugary facets , and/or surface hoar from early December.   Recent avalanches have also stepped down to a crust / facet layer near the bottom of the snowpack in an adjacent forecast region.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":71,"length":5,"key":0},{"offset":85,"length":7,"key":1},{"offset":101,"length":12,"key":2}],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crust#crusts"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"2":{"type":"LINK","mutability":"
Lingering wind slabs may remain reactive to human triggers on a variety of aspects.
A weak layer may exist around 50 to 100 cm deep, composed of weak and sugary faceted grains above a hard melt-freeze crust. It has been over a week since the last reported avalanche on this layer, but the likelihood of triggering it may increase during this stormy period.
hard melt-freeze crust is found around 50 to 100 cm deep. The concern is where weak layers of surface hoar and/or faceted grains exist above the crust.  For areas where either of these weak layers exists above the crust, the possibility remains that riders could trigger large avalanches. The potential of triggering these layers will increase during this weekend's stormy period.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"deiup","text":"
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches.   ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"56fpu","text":"This problem can be avoided through conservative terrain choices.
Depending on elevation and aspect, 60-150 cm of snow currently sits above buried weak layers from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs remain reactive, especially with large triggers or in a shallow snowpack.  This layer appears to be more concerning above 1700m and on northerly aspects.  This layer proceed avalanches last week.  It remains possible to tigger this layer in thin to fat zones, with a step-down avalanche, with a cornice collapse or on slopes that have received significant wind transport. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":122,"length":7,"key":0},{"offset":134,"length":12,"key":1},{"offset":158,"length":5,"key":2},{"offset":453,"length":9,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=persistent+weak+laye#surface-hoar"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crust#crusts"}},"3":{"type":"LINK","mutabilit
A slab rests on a persistent weak layer which has the capacity to propagate avalanches across terrain features. Although the likelihood of triggering a persistent slab avalanche is reducing, the potential for triggering a high consequence avalanche should still be top of mind in your decision making process.
Depending on elevation and aspect, 60-150 cm of snow currently sits above buried weak layers from early December. Sugary, facets  and surface hoar around the crust mean persistent slabs remain reactive, especially with large triggers or in a shallow snowpack.  This layer appears to be more concerning above 1700m and on northerly aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":122,"length":7,"key":0},{"offset":134,"length":12,"key":1},{"offset":158,"length":5,"key":2}],"data":{}},{"key":"4rcpm","text":"This layer reached a tipping point earlier in the week as evidenced by the recent natural avalanche cycle.  Although naturally triggered avalanches have tapered, it remains possible to tigger this layer in thin to fat zones, with a step-down avalanche, with a cornice collapse or on slopes that have received significant wind transport. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":232,"length":9,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=persistent+weak+laye#surface-hoar"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crust#crusts"}},"3":{"type":"LINK","mutabilit
Watch for new snow and wind to form reactive slabs on leeward terrain in the alpine and near ridgetops.
hard melt-freeze crust is found around 40 to 90 cm deep. The concern is where weak layers of surface hoar and/or faceted grains exist above the crust.  For areas where either of these weak layers exists above the crust, the possibility remains that riders could trigger large avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"deiup","text":"
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 50 to 100 cm deep. Be aware that new snow and wind will be adding additional load to this layer, and it may become reactive again this weekend.
A weak layer may exist around 50 to 100 cm deep, composed of weak and sugary faceted grains above a hard melt-freeze crust. It has been over a week since the last reported avalanche on this layer, but the likelihood of triggering it may increase during this stormy period.
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
A significant load is being applied to a persistent weak layer that is now buried between 60-150 cm. It is likely that avalanches will run on this layer during this weekend's storm.
A weak layer of surface hoar is buried 40-70cm below recent storm snow.  A surface hoar layer has been reactive in the Nass Valley as well as in the Shames area, and likely exists in most sheltered reeling and below treeline regions. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":15,"length":13,"key":0}],"data":{}},{"key":"ghtc","text":"A crust that was buried in early December is now down 90-200 cm and counting.  Around this crust are facets and potentially surface hoar in sheltered areas. Human triggered avalanches or cornince failures may step down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":101,"length":6,"key":1},{"offset":209,"length":9,"key":2}],"data":{}},{"key":"8jopp","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"esvf7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=facet#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary?q=facet#faceted-snow"}},"2":{"type":"LINK","muta
Numerous weak layers may exist in the top half of the snowpack, including surface hoar and faceted grains over a melt-freeze crust. These layers were recently triggered in riding areas north of Terrace. The likelihood of avalanches involving these layers will be heightened during and immediately after this stormy period.
0-100 cm of snow currently sits above a weak layer from early December. Combinations of a  crust, sugary facets , and/or surface hoar mean persistent slabs can produce large destructive avalanches.   It remains possible to tigger this layer in thin to fat zones, with a cornice collapse, with a step-down avalanche or on slopes that have received significant wind transport.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":91,"length":6,"key":0},{"offset":106,"length":7,"key":1},{"offset":122,"length":12,"key":2},{"offset":296,"length":9,"key":3}],"data":{}},{"key":"5jdlq","text":"In very shallow snowpacks, basal facets and a crust / facet layer from early November remain on our radar.   Large and very large avalanches were reported on this layer last week from one of our nearest neighbours.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"deiup","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crust#crusts"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=facets#faceted-snow"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=persistent+weak+laye#surface-hoar"}},"3":{"type":"LINK","mutabilit
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Previous to the incoming storm snow, a buried persistent weak layer has been observed throughout the region 30 to 80 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes.  This storm may initiate a natural avalanche cycle that could easily trigger very large persistent slab avalanches.  It will be a good test in the long run, but this is a time to avoid avalanche terrain while the snowpack tries to sort itself out.
A weak layer composed of weak and sugary faceted grains above a hard melt-freeze crust exists around 60 to 100 cm deep. It has been over a week since the last reported avalanche on this layer, but the likelihood of triggering it may increase during this stormy period.
A weak layer of surface hoar is down 50-100 cm, and may still triggerable by humans in areas where it exists.
The recent storm added a big load to a deeply buried weak layer. Avalanches on this layer are becoming less likely, however, they will be large and destructive if they do happen.
Weak layers of feathery surface hoar and/or sugary faceted grains may be found above a hard melt-freeze crust around 50 to 100 cm deep. Although avalanche activity hasn't been reported on these weak layers for over a week, the likelihood of triggering will be heightened during this stormy period.
hard melt-freeze crust is found around 50 to 100 cm deep. The concern is where weak layers of surface hoar and/or faceted grains exist above the crust.  For areas where either of these weak layers exists above the crust, the possibility remains that riders could trigger large avalanches. The potential of triggering these layers will increase during this weekend's stormy period.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"deiup","text":"
Weak layers of surface hoar and/or faceted grains may be found above a melt-freeze crust. Recent reports suggest this weak layer may be less prevalent in the south of the region, but still exists in localized pockets.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 50 to 100 cm deep. Be aware that new snow and wind will be adding additional load to this layer, and it may become reactive again this weekend.
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
A significant load is being applied to a persistent weak layer that is now buried between 60-150 cm. It is likely that avalanches will run on this layer during this weekend's storm.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 90 cm deep, while in others it is weak snow near the bottom of the snowpack. This problem is best managed by avoiding steep rocky slopes and approaching challenging and complex avalanche terrain with extra caution.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. These layers have shown a downtrend in activity since early last week but there remains potential for avalanches to step down to these layers.
A couple of problematic layers may be found around 80 to 180 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 50 to 100 cm deep, while in others it is weak snow near the bottom of the snowpack. This problem is best managed by avoiding steep rocky slopes and approaching all avalanche terrain with caution.
A couple of problematic layers may be found around 50 to 150 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
A weak layer of surface hoar down 50-100 cm. has been reactive to human triggers, resulting in large avalanches.
Previous to this weekend's storm, a buried persistent weak layer has been observed throughout the region 30 to 80 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes.  As the weekend storm progresses, a natural avalanche cycle may begin that could easily include very large persistent slab avalanches.  It will be a good test in the long run, but this is a time to avoid avalanche terrain while the snowpack tries to sort itself out.
Smaller storm slabs in motion may step-down to deeper layers resulting in very large avalanches. This problem can be avoided through conservative terrain choices.
Two persistent weak layers buried in early/mid Dec. are now 80 to 150 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next .
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. Be aware that new snow and wind have been adding additional load to this layer, and it may become reactive again.
A couple of problematic layers may be found around 80 to 180 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
Weak layers of feathery surface hoar and/or sugary faceted grains may be found above a hard melt-freeze crust around 50 to 100 cm deep. Although avalanche activity hasn't been reported on these weak layers for over a week, the likelihood of triggering will be heightened during this stormy period.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer is being stressed as new snow slowly but steadily piles up. This incremental loading makes it difficult to predict when the tipping point will be reached. We are currently seeing only sporadic avalanches running on these layers, but they have been large (size 3). The uncertainty around this problem is best managed with conservative terrain selection.
Numerous weak layers may exist in the top half of the snowpack, including surface hoar and faceted grains over a melt-freeze crust. These layers were recently triggered in riding areas north of Terrace. The likelihood of avalanches involving these layers will be heightened during and immediately after this stormy period.
hard melt-freeze crust is found around 50 to 100 cm deep. The concern is where weak layers of surface hoar and/or faceted grains exist above the crust. For areas where either of these weak layers exists above the crust, the possibility remains that riders could trigger large avalanches.
Two persistent weak layers buried in early/mid-December are now 100 to 180 cm below the surface. The form and distribution of these layers are HIGHLY VARIABLE and have created conditions that can vary significantly from one valley to the next.
A couple of weak layers exist in the mid snowpack, buried 40-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and there has not been any associated avalanche activity in the last few days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
olated steep features in the alpine that did not avalanche during the previous natural cycle may still have potential to produce destructive persistent slab avalanches with a human trigger. Increase caution around steep alpine slopes where a supportive crust layer does not exist near the surface.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 90 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 120 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Wind slabs in motion and cornice falls have recently produced some very large avalanches failing on a crust down around 150 cm. Human triggering of this layer is most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
The snowpack across the region has some isolated areas where persistent weak layers remain a problem. These layers include feathery surface hoar and/or sugary faceted grains above a hard crust roughly 50 to 100 cm deep. This is a difficult problem to manage because it does not seem to exist in most terrain, but in the isolated places where it does exist it can produce large destructive avalanches.
Two persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevations bands.
Two persistent weak layers buried in early/mid-December are now down 90 to 150 cm. The form and distribution of these layers are highly variable and have may vary significantly from one valley to the next, and between elevation bands.
A couple of weak layers exist in the mid snowpack, buried 80-150 cm and 120-200 cm below the surface.  They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, even more destructive avalanches.
The snowpack across the region has some isolated areas where persistent weak layers linger, including surface hoar and/or facets above a crust 50 to 100 cm below the surface. This is a difficult problem to manage because it does not seem to exist in most terrain, but in the isolated places where it does exist it can produce large destructive avalanches.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer is being stressed as new snow slowly but steadily piles up. This incremental loading makes it difficult to predict when the tipping point will be reached. We are currently seeing only sporadic avalanches running on these layers, but they have been large. The uncertainty around this problem is best managed with conservative terrain selection.
A couple of problematic layers may be found around 80 to 180 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers. This problem seems to be most prevalent in the north of the region around Duffy Lake.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. These layers have shown a downtrend in activity since early last week but there remains potential for avalanches to step down to these layers.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 120 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A persistent weak layer exists throughout the region 50-120 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes. Over the past week or so this problem has evolved into a 'low probability/high consequence' scenario that continue to demand careful terrain selection and diligent travel practices.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 50 to 100 cm deep, while in others it's weak snow near the bottom of the snowpack. This problem is best managed by avoiding steep rocky slopes and approaching avalanche terrain with caution.
The heavy load of storm snow could be stressing weak layers 100-200 cm beneath the surface and produce very large avalanches that run to the ends of avalanche paths.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 90 cm deep, while in others it is weak snow near the bottom of the snowpack. This problem is best managed by avoiding steep rocky slopes and approaching challenging and complex avalanche terrain with extra caution.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. These layers have shown a downtrend in activity since early last week but there remains potential for avalanches to step down to these layers.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer is being stressed as new snow slowly but steadily piles up. This incremental loading makes it difficult to predict when the tipping point will be reached. We are currently seeing only sporadic avalanches running on these layers, but they have been large. The uncertainty around this problem is best managed with conservative terrain selection.
A couple of problematic layers may be found around 80 to 180 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. With the addition of a significant load of new snow, large avalanches may run naturally on these layers. This problem seems to be most prevalent in the north of the region around Duffy Lake.
Two persistent weak layers buried in early/mid-December are now down 90 to 150 cm. The form and distribution of these layers are highly variable and have may vary significantly from one valley to the next, and between elevation bands.
Two persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevations bands.
A weak layer of surface hoar down 50-100 cm has been reactive to human triggers in the past week.
Buried weak layers are adjusting to the load of the new snow and could still be reactive to human triggering. In the Shames area the main concern is a layer of surface hoar 75-125 cm below the surface, while further north there are deeper layers that pose a low likelihood - high consequence scenario. Conservative terrain choices is the best way to manage this problem.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 90 cm deep, while in others it is weak snow near the bottom of the snowpack. This problem is best managed by avoiding steep rocky slopes and approaching challenging and complex avalanche terrain with extra caution.
The snowpack across the region has some isolated areas where persistent weak layers linger, including surface hoar and/or facets above a crust 50 to 100 cm below the surface. This is a difficult problem to manage because it does not seem to exist in most terrain, but in the isolated places where it does exist it can produce large destructive avalanches.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 50 to 100 cm deep, while in others it's weak snow near the bottom of the snowpack. This problem is best managed by avoiding steep rocky slopes and approaching avalanche terrain with caution.
A weak layer of surface hoar is down 50-100 cm. They are highly variable in form and distribution and have not been associated with recent avalanche activity. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of problematic layers may be found around 80 to 180 cm deep primarily in the north of the region (e.g. Duffey, Hurley), including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Although the likelihood of triggering is reducing, the consequences of doing so would be high.
A weak layer of surface hoar that was buried around Christmas is now down about 50-80 cm and is most prevalent at treeline and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5rgbr","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1capq","text":"Two more persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevation bands.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 50 to 100 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer has been steadily stressed as new snow slowly piled up over the past week.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Sporadic avalanche activity on these layers this week means there is still potential for avalanches to step down to these layers.
A couple of problematic layers may be found around 80 to 180 cm deep primarily in the north of the region (e.g. Duffey, Hurley), including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Although the likelihood of triggering is reducing, the consequences of doing so would be high.
The snowpack across the region has some isolated areas where persistent weak layers linger, including surface hoar and/or facets above a crust 50 to 100 cm below the surface. This is a difficult problem to manage because it does not seem to exist in most terrain, but in the isolated places where it does exist it can produce large destructive avalanches.
Buried weak layers are adjusting to the load of the new snow and could still be reactive to human triggering. In the Shames area the main concern is a layer of surface hoar 75-125 cm below the surface, while further north there are deeper layers that pose a low likelihood - high consequence scenario. Conservative terrain choices is the best way to manage this problem.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 50 to 100 cm deep, while in others it's weak snow near the bottom of the snowpack. This problem is best managed by avoiding steep rocky slopes and approaching avalanche terrain with caution.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 90 cm deep, while in others it is weak snow near the bottom of the snowpack. This problem is best managed by avoiding steep rocky slopes and approaching challenging and complex avalanche terrain with extra caution.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequences of doing so remain high.
A persistent weak layer exists throughout the region 50-120 cm below the surface.  The catch is that this layer is present on some slopes, and then absent on nearby slopes. Over the past week or so this problem has evolved into a 'low probability/high consequence' scenario that demands careful terrain selection and diligent travel practices.
A couple of weak layers exist in the mid snowpack, buried 50-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A weak layer lurks deep in the snowpack. Avalanches on this layer are becoming less likely, however they will be large and destructive if they do happen.
A weak layer of surface hoar that was buried around Christmas is now down about 40-80 cm and is most prevalent at treeline and below treeline. This layer remains at a depth triggerable by skiers, sleds and wind slab avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ji8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62lfc","text":"A deeper persistent weak layer buried in early/mid-December is now down 90 to 150 cm. Triggering these layers require large loads such as explosives or other avalanches in motion. The result of a step down to these layer would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":196,"length":9,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
A persistent weak layer exists throughout the region 50-120 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass seem to remain problematic and there has been some recent large avalanche activity on this interface.
A weak layer of surface hoar that was buried around Christmas is now down about 40-80 cm and is most prevalent at treeline and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ji8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62lfc","text":"Two more persistent weak layers buried in early/mid-December are now down 90 to 150 cm. The form and distribution of these layers are highly variable and have may vary significantly from one valley to the next, and between elevation bands.
A weak layer of surface hoar that was buried around Christmas is now down about 50-80 cm and is most prevalent at treeline and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5rgbr","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1capq","text":"Two more persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevation bands.
A weak layer of surface hoar that was buried around Christmas is now down about 50-80 cm and is most prevalent at treeline and below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5rgbr","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1capq","text":"Two more persistent weak layers buried in early/mid-December are now 90-150 cm below the surface. The form and distribution of these layers are highly variable and may vary significantly from one valley to the next, and between elevation bands.
A weak layer of surface hoar is down 50-100 cm, and may still be easy to trigger in some areas.
A weak layer of surface hoar is down 50-100 cm, and may still triggerable by humans in areas where it exists.
A couple of problematic layers may be found around 80 to 180 cm deep primarily in the north of the region (e.g. Duffey, Hurley), including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Although the likelihood of triggering is reducing, the consequences of doing so would be high.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust 70 to 100 cm deep. This layer has been steadily stressed as new snow slowly piled up over the past week. The likelihood of triggering a persistent slab has reduced, but the consequences of doing so remain high.
New snow and extreme winds may overload deeply buried weak layers, resulting in very large avalanches. In the Shames area the main concern is a layer of surface hoar 75-125 cm below the surface, while further north there are deeper layers that pose a low likelihood, high consequence scenario. Choosing conservative terrain away from overhead hazard is the best way to manage this problem.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. Sporadic avalanche activity on these layers this week means there is still potential for avalanches to step down to these layers.
A persistent weak layer exists throughout the region 80 to 100 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass may remain problematic.
Buried weak layers are adjusting to the load of the new snow and could still be reactive to human triggering. In the Shames area the main concern is a layer of surface hoar 75-125 cm below the surface, while further north there are deeper layers that pose a low likelihood - high consequence scenario. Conservative terrain choices is the best way to manage this problem.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 90 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 50 to 100 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 120 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A weak layer of surface hoar that was buried around Christmas is now down about 40-80 cm and is most prevalent at treeline and below. This layer remains at a depth triggerable by skiers, sleds and wind slab avalanches.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7ji8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"62lfc","text":"A deeper persistent weak layer buried in early/mid-December is now down 90 to 150 cm. Triggering these layers require large loads such as explosives or other avalanches in motion. The result of a step down to these layer would be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":196,"length":9,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 70 to 100 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 50 to 100 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.
A couple of problematic layers may be found around 80 to 180 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 80 to 130 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of problematic layers may be found around 100 to 200 cm deep, including a weak layer of faceted grains above a melt-freeze crust. A few high-consequence avalanches have been triggered naturally and by riders recently near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46h8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dpkhg","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 90 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 50 to 100 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
New snow and extreme winds may overload deeply buried weak layers, resulting in very large avalanches. Choosing conservative terrain away from overhead hazard is the best way to manage this problem.
A persistent weak layer exists throughout the region 80 to 90 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass seem to remain problematic and there has been some recent large avalanche activity on this interface.
Wind slabs in motion and cornice falls have recently produced some very large avalanches failing on a crust down around 150 cm. Human triggering of this layer is most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Wind slabs in motion and cornice falls have recently produced some very large avalanches failing on a crust down around 150 cm. Human triggering of this layer is most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A couple of weak layers exist in the mid snowpack, buried 80-150 cm and 120-200 cm below the surface.  They are highly variable in distribution and trending toward dormancy, but they are being tested by a load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
We have very little data and a lot of uncertainty around alpine conditions in this region. We suspect any dry snow at the highest elevations has been blown into wind slabs. There may be a number of crusts within the recent storm snow, and on the surface after rain overnight Thursday followed by a sharp drop in freezing levels.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5dac2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr018","text":"
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 90 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A couple of problematic layers may be found around 80 to 180 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 70 to 100 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of weak layers exist in the mid snowpack, buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but they are being tested by a load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
Cornices have grown large, saggy and fragile. A few recent cornice falls have triggered avalanches on the slopes below.
Weak layers of surface hoar exist 65-140 cm deep in sheltered treeline terrain (and below). These layers are highly variable in form and distribution. A widespread buried crust also exists near the base of the snowpack. Although these layers have not been associated with recent avalanche activity, they are being tested by a new load of new snow and potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, more destructive avalanches.
There are a few different persistent weak layers being reported throughout the region. They are all generally buried between 100-200 cm and tend to consist of either surface hoar or crusts with faceted snow sitting on them.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility, especially since the new snow has added load to these weak layers. In some areas the concern is weak snow around crusts 60 to 120 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46h8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dpkhg","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 70-140 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
The recent storm added a big load to a deeply buried weak layer. Avalanches triggered on this layer will likely be large and destructive.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered naturally and by riders recently near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46h8v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dpkhg","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
A problematic layer consisting of sugary faceted grains over a crust may be found around 200 cm deep. The likelihood of triggering an avalanche at this interface has reduced, but the consequence of doing so remains high.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8s7k1","text":"This problem is most prominent along the northwestern border of the region and nonexistent in the south.
A persistent weak layer exists throughout the region 80 to 100 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass may remain problematic.
A problematic layer consisting of sugary faceted grains over a crust may be found around 200 cm deep. This problem is most predominant along the northwestern border of the region. The likelihood of triggering an avalanche at this interface has reduced, but the consequence of doing so remains high.
New snow and extreme winds may overload deeply buried weak layers, resulting in very large avalanches. Choosing conservative terrain away from overhead hazard is the best way to manage this problem.
A couple of weak layers exist in the mid snowpack, buried 40-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and there has not been any associated avalanche activity in the last few days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A persistent weak layer exists throughout the region 80 to 100 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass may remain problematic.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 70 to 100 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A weak layer of surface hoar is down 50-100 cm. They are highly variable in form and distribution and have not been associated with recent avalanche activity. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of weak layers exist in the mid snowpack, buried 50-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of weak layers exist in the mid snowpack, buried 50-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and have not been associated with avalanche activity in recent days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A weak layer of surface hoar is down 50-100 cm. They are highly variable in form and distribution and have not been associated with recent avalanche activity.  A buried  crust near the base of the snowpack has not shown recent reactivity but remains concern. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
A couple of weak layers exist in the mid snowpack, buried 40-80 cm and 90-150 cm below the surface. They are highly variable in form and distribution and there has not been any associated avalanche activity in the last few days. Incoming snowfall in the forecast for this week will add additional load to these layers and may shed some light on whether they will remain a concern.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility, especially with new snow adding load to these weak layers. In some areas the concern is weak snow around crusts 60 to 120 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 70-140 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
There are a few different persistent weak layers being reported throughout the region. They are all generally buried between 100-200 cm and tend to consist of either surface hoar or crusts with faceted snow sitting on them.
This storm is adding a big load to a deeply buried weak layer. Avalanches triggered on this layer will be large and destructive.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches have greater potential to step down to deep weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
A weak layer of surface hoar buried Jan 11 can be found 40-60 cm deep. There is uncertainty with how this persistent slab problem will react to the load from the new snow and wind. A couple of surface hoar layers from December can still be found buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but the possibility exists for avalanches to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":106,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
riggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 60 to 120 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A problematic layer consisting of sugary faceted grains over a crust may be found around 200 cm deep. This problem is most predominant in the north of the region (e.g. Duffey, Hurley). The likelihood of triggering an avalanche on these layers has reduced, but the consequence of doing so remains high.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 80 to 130 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
The recent storm added a big load to a deeply buried weak layer. Avalanches on this layer are becoming less likely, however they will be large and destructive if they do happen.
Weak surface hoar and/or faceted grains sit above a melt-freeze crust around 80 to 130 cm deep. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of problematic layers may be found around 100 to 200 cm deep, including weak layers of surface hoar and faceted grains above a hard melt-freeze crust. A few high-consequence avalanches have been triggered by riders in the past few days near Whistler.
A couple of problematic layers may be found around 100 to 200 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of problematic layers may be found around 100 to 200 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
Reactive slab avalanches may exist only in the high alpine from recent snow and wind. Slabs will be thickest in lee terrain features, as the snow fell with a strong southwest wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5dac2","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cr018","text":"
A couple of problematic layers may be found around 100 to 200 cm deep. The layers are primarily in the north of the region (e.g. Duffey, Hurley) and include weak layers of surface hoar and faceted grains above a hard melt-freeze crust. The likelihood of triggering a persistent slab has reduced, but the consequence of doing so remains high.
A couple of weak layers exist in the mid snowpack, buried 80-150 cm and 120-200 cm below the surface.  They are highly variable in distribution and trending toward dormancy, but they are being tested by a new load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
A couple of weak layers exist in the mid snowpack, buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but they are being tested by a new load of new snow. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
Weak layers of surface hoar exist 65-140 cm deep in sheltered treeline terrain (and below). These layers are highly variable in form and distribution. A widespread buried crust also exists near the base of the snowpack. Although these layers have not been associated with recent avalanche activity, they are being tested by a new load of new snow and potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger more destructive avalanches.
There are a few different persistent weak layers being reported throughout the region. They are all generally buried between 100-200 cm and tend to consist of either surface hoar or crusts with faceted snow sitting on them.
The recent storm added a big load to a deeply buried weak layer. Avalanches triggered on this layer will likely be large and destructive.
riggering large avalanches on weaknesses in the lower snowpack remains a possibility, especially since the new snow has added load to these weak layers. In some areas the concern is weak snow around crusts 60 to 120 cm deep, while in others it's weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 70-140 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A couple of weak layers exist in the mid to lower snowpack, buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 70-140 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Previous wind has deposited recent snow into deeper slabs on leeward slopes at upper elevations. Wind slabs may remain reactive, particularly where they sit over surface hoar in sheltered terrain or a crust on solar aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8i9kq","text":"
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 70-140 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Shifting wind over the past few days has likely blown snow into slabs in atypical terrain features. They could be especially reactive where they sit over a rain crust or large surface hoar crystals.
Weak layers of surface hoar exist 50-150 cm deep in sheltered treeline terrain (and below). These layers are highly variable in form and distribution. A widespread buried crust also exists near the base of the snowpack. Although these layers have only been associated with isolated recent avalanche activity, they are adjusting to a new load of new snow and potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, more destructive avalanches.
A couple of weak layers exist in the mid snowpack, buried 80-150 cm and 120-200 cm below the surface.  They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, even more destructive avalanches.
Weak layers of surface hoar exist 50-150 cm deep in sheltered treeline terrain (and below). These layers are highly variable in form and distribution. A widespread buried crust also exists near the base of the snowpack. Although these layers have only been associated with isolated recent avalanche activity, they are adjusting to a new load of new snow and potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, more destructive avalanches.
A weak layer lurks deep in the snowpack. Avalanches on this layer are becoming less likely, however they will be large and destructive if they do happen.
A couple of weak layers exist in the mid to lower snowpack, buried 70-120 cm and 110-190 cm below the surface. They are highly variable in distribution and trending toward dormancy, but recent isolated avalanche activity on deep layers should keep them on your mind. Some potential currently exists for avalanches in surface layers to step down to a deeper layer to create larger, much more destructive avalanches.
A persistent weak layer exists throughout the region 80 to 100 cm below the surface. In most places it looks like the overlying snow is gaining strength and human triggering is trending towards unlikely.  However, areas around the Pine Pass may remain problematic.
A weak layer of surface hoar buried Jan 11 can be found 50-70 cm deep. There is uncertainty with how this persistent slab problem will react to the load from the recent snow and wind. The possibility exists for avalanches in the storm snow to step down to these layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":106,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 70-100 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A weak layer of surface hoar buried Jan 11 may be found 50-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. The possibility exists for avalanches in the surface snow to step down to these layers.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Cornices have grown large, saggy and fragile. A few recent cornice falls have triggered wind slab avalanches on the slopes below.
The likelihood of triggering a weak layer of surface hoar buried Jan 11 buried 40-60 cm deep is decreasing, but it may still persist on sheltered, open slopes near treeline. There is uncertainty as to the distribution and sensitivity to triggering of this persistent slab problem across the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. The possibility exists for avalanches in the surface snow to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":256,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A couple of problematic layers may be found around 100 to 200 cm deep, including a weak layer of faceted grains above a melt-freeze crust. A few high-consequence avalanches have been triggered naturally and by riders recently near Whistler.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"jn2n","text":"Read what a local guide has to say about these persistent weak layers here.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":70,"length":4,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE
A weak layer of surface hoar buried Jan 11 can be found 40-60 cm deep. On solar aspects, this surface hoar layer may be found near a thin crust. There is uncertainty with how this persistent slab problem will react to the load from the new snow and wind.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":180,"length":15,"key":0}],"data":{}},{"key":"dm0qb","text":"Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type
A problematic layer consisting of sugary faceted grains over a crust may be found around 200 cm deep. The likelihood of triggering an avalanche at this interface has reduced, but the consequence of doing so remains high.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8s7k1","text":"This problem is most prominent along the northwestern border of the region and nonexistent in the south.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
New snow is stressing a widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it. This layer is roughly 75-115 cm deep and is expected to produce large avalanches for longer than what is typical after a storm on the South Coast.
A weak layer of surface hoar buried Jan 11 may be found 50-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Hard wind slabs are widespread but difficult to trigger. However, be aware of the potential for wide propagations if triggered.
We've been tracking a few different persistent weak layers in the snowpack. They are all generally buried between 100-200 cm and tend to consist of either surface hoar or crusts with faceted snow sitting on them. Recent storms and snow added a huge load and tested these layers deeper in the snowpack. Moving forward the mid-pack is generally well settled and these layers are becoming quite stubborn to human trigger and likely trending to dormancy, however still pose the \"low probability, high consequence\" scenario.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 70-100 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. Steep, rocky and shallow snowpack areas would be likely trigger areas.
Persistent weak layers that were buried in January and February could become reactive again with intense solar radiation and high freezing levels.
Light new snow amounts are accumulating above a range of weak surfaces that new snow won't bond well to. Only wind loaded pockets will likely see enough accumulation to pose a hazard on Monday, but expect them to be touchy to light triggers.
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline. There is uncertainty as to the distribution and sensitivity to triggering of this persistent slab problem across the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. The possibility exists for avalanches in the surface snow to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":200,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. Overall these layers are trending unreactive, however steep, rocky and shallow snowpack areas would be likely trigger areas.
50-70 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consits of a melt freeze crust in some areas, surface hoar in shetered areas, and facets in some areas as well.
In shallow snowpack areas weak faceted snow can be found around crusts roughly 100 cm below the surface. Human triggering a slab above this weak layer is possible on isolated shallow rocky slopes. The most recent avalanches on these layers have been reported east of the Bulkey Valley and at Ningunsaw.
A weak layer of surface hoar buried Jan 11 may be found 50-70 cm deep on open, sheltered slopes near and below treeline. There is uncertainty as to the distribution and reactivity of this persistent slab problem across the region. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":188,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Cornices have grown large, saggy and fragile. A few recent cornice falls have triggered wind slab avalanches on the slopes below.
Cornices have grown large, saggy and fragile. A few recent cornice falls have triggered avalanches on the slopes below.
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline. There is uncertainty as to the distribution and sensitivity to triggering of this persistent slab problem across the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. The possibility exists for avalanches in the surface snow to step down to these layers. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":200,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://avysavvy.avalanche
Old wind slabs in isolated terrain features have likely become stubborn to trigger. Large loads like cornice falls could still trigger avalanches on wind loaded slopes below.
Old wind slabs in isolated terrain features have likely become stubborn to trigger. Large loads like cornice falls could still trigger avalanches on wind loaded slopes below.
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations.
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. Steep, rocky and shallow snowpack areas would be likely trigger areas.
As flurries continue, small new wind slabs may form in leeward pockets at ridgecrests and around exposed terrain features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8vod5","text":"
Light new snow amounts are accumulating above a range of weak surfaces that new snow won't bond well to. Only very wind loaded pockets will likely see enough accumulation to pose a hazard on Monday, but expect them to be touchy to light triggers.
A weak layer of surface hoar buried Jan 11 buried 20-50 cm deep may be found on sheltered, open slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. Overall these layers are trending unreactive, however steep, rocky and shallow snowpack areas would be likely trigger areas.
A weak layer of surface hoar buried Jan 11 is down 40-120 cm and may be found on sheltered slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack.  These layers may become reactive with a large load or in shallow, rocky or thin to thick snowpacks.
Moderate to strong northwest wind will continue to redistribute the new snow building wind slabs in lee terrain features in the alpine and at exposed treeline. They may have a poor bond with old snow surfaces, for example, hard wind affected layers and pockets of surface hoar or surface facets. If the bond is poor, the wind slabs will be more reactive. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2qjm3","text":"Looming cornices may be large and fragile. With respect, give them a wide berth from above and below.
A weak layer of surface hoar buried Jan 11 buried 30-60 cm deep may be found on sheltered slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. Concern for all of these layers is increasing as they adjust to a new load of snow. Steep, rocky and shallow snowpack areas would be likely trigger areas.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and wind will likely add cohesion and load to these weak layers resulting in a reactive persistent slab problem.
New snow is stressing a widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it. This layer is roughly 60-100 cm deep and is expected to produce large avalanches for longer than what is typical after a storm on the South Coast.
A weak layer of surface hoar buried Jan 11 is down 30-60 cm and may be found on sheltered slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. Concern for all of these layers is increasing as they adjust to a new load of snow. Steep, rocky and shallow snowpack areas would be likely trigger areas.
A weak layer of surface hoar buried Jan 11 is down 30-60 cm and may be found on sheltered slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack and remain a cause for concern in thick to thin areas at upper elevations. Concern for all of these layers is increasing as they adjust to a new load of snow. Steep, rocky and shallow snowpack areas would be likely trigger areas.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
30-60 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
20-40 cm of new storm snow has slowly accumulated over the past few days. Changing wind directions may deposit deeper and stiffer slabs on multiple aspects. I suspect that anywhere the new snow feels stiff and more cohesive the slab may be more reactive, especially where it sits above a buried weak layer. Loose-dry avalanches may be seen from steeper slopes where there is little cohesion in the recent storm snow.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3v8h","text":"Cornices are large and fragile and don't respond well to rapid change- like new load from snow, rapid warming or rapid cooling. They deserve respect and a wide berth from above and below.
A wind slab problem exists in the north of the region. Wind slabs may remain reactive especially where they sit over a crust on solar aspects, at ridgetops and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":55,"style":"BOLD"},{"offset":34,"length":5,"style":"IT
Ongoing ridgetop winds have redistributed the low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger.
30-60 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind may create enough cohesion and load to these weak layers resulting in a reactive persistent slab problem just waiting for a skier or rider to trigger.
30-60 cm sits above a persistent weak layer that consists of surface hoar, facets, and/ or a crust. As the new snow becomes more consolidated, the likelihood of avalanches may increase.
A cohesive slab 30-45 cm thick now sits above a buried weak layer of surface hoar and facets. These slabs have been very reactive to human triggers showing wide propagations in moderate to low angle terrain. They have been catching people by surprise, so pay attention to signs of instability and stay clear of terrain traps below.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
A widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it is now down about 125-175 cm. This layer is expected to produce large avalanches for longer than what is typical after a storm on the South Coast.
A weak layer of surface hoar buried Jan 11 is down 40-120 cm and may be found on sheltered slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack.  These layers may become reactive with a large load or in shallow, rocky or thin to thick snowpacks.
40-80 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. As the snow above this layer becomes more consolidated, the likelihood of avalanches may increase.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":142,"length":12,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","muta
We're expecting more wind from the east and southeast this weekend which could form fresh wind slabs in unusual locations.
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consists of a melt-freeze crust in some areas, surface hoar in sheltered areas, and facets in some areas. This layer has been the most reactive at treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":207,"length":83,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":90,"length":83,"style":"BOLD"}],"entityRanges":[],"data":{}},{"key":"95jml","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2fehb","text":"Another layer of surface hoar that was buried in mid-January may still be possible to trigger, and it is now down about 80-100 cm.
Intermittent ridgetop winds have redistributed the low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"
outhwest switching to northwesterly winds may form reactive wind slabs on a variety of aspects at treeline and above.
Ongoing ridgetop winds have redistributed the low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"
Intermittent ridgetop winds have redistributed recent low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger.
Southwest switching to northwesterly winds may form reactive wind slabs on a variety of aspects at treeline and above.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9q9kb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"
Southwest switching to northwesterly winds may form reactive wind slabs on a variety of aspects at treeline and above.
Solar triggered loose snow avalanches are possible out of steep sunny slopes in the afternoon.
30-60 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
A widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it is now down about 80-150 cm. This layer is expected to produce large avalanches for longer than what is typical after a storm on the South Coast.
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer consist of a melt-freeze crust in some areas, surface hoar in sheltered areas, and facets in some areas as well.
A cohesive slab 30-45 cm thick now sits above a buried weak layer of surface hoar and surface facets. These slabs have been very reactive to human triggers showing wide propagations in moderate to low angle terrain. They have been catching people by surprise, so pay attention to signs of instability and stay clear of terrain traps like creeks, cliffs, and depressions below you.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"agiru","text":"
A weak layer of surface hoar buried mid January is down 40-120 cm and may be found on sheltered slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack.  These layers may become reactive with additional snow load or in shallow, rocky, or thin to thick snowpack areas.
There may be a localized uptick (30-40 km per hr at ridge top) in north east wind tomorrow. This could mean new reactive wind slabs in places with snow available for transport.
Southwest switching to northwesterly winds may form reactive wind slabs on a variety of aspects at treeline and above.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1q1rq","text":"
20-40 cm sits above a weak layer that consists of surface hoar, facets, and/ or a crust. As the new snow becomes more cohesive and gains slab properties, the likelihood of avalanches may increase.
20-40 cm of new storm snow has slowly accumulated over the past few days. Variable wind has formed reactive slabs on multiple aspects, and wind will continue to impact loose snow. Avalanches will be most likely in wind loaded areas and where the snow feels stiff or slabby.
A wind slab problem exists in the north of the region. Wind slabs may remain reactive especially where they sit over a crust on solar aspects, at ridgetops and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":55,"style":"BOLD"},{"offset":34,"length":5,"style":"IT
There may be a localized uptick (30-40 km per hr at ridge top) in north east wind tomorrow. This could mean new reactive wind slabs in places with snow available for transport.
20-40 cm of new storm snow has slowly accumulated over the past few days. Changing wind directions will likely form reactive slabs on multiple aspects. Avalanches will be most likely in wind loaded areas and where the snow feels stiff or slabby.
Despite decreasing avalanche danger, there remains a lingering possibility to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
Storm slabs may be reactive especially in areas that received higher snowfall amounts.
30-80 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
30-80 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
30-60 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location.  Avalanches on this layer may propagate widely.
Storm slabs may continue to be reactive, especially in wind loaded areas at higher elevations.
A widespread weak layer consisting of a crust, with facets and/or surface hoar on top of it is now down about 80-150 cm. This layer may still produce large avalanches in areas that have not already avalanched.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
Moderate wind from the west-northwest has redistributed recent storm snow to leeward slopes and terrain features building fresh wind slabs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"71oa4","text":"Cornices are large and fragile and don't respond well to rapid change- like new load from snow, rapid warming or rapid cooling. They deserve respect and a wide berth from above and below.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind will likely add cohesion and load to these weak layers resulting in a reactive persistent slab problem.
Moderate to strong northwest wind will continue to redistribute the new snow and build wind slabs in lee terrain features in the alpine and at exposed treeline. It is uncertain how well the transported snow will bond with other old surfaces, for example, hard wind affected layers and pockets of surface hoar or surface facets. If the bond is poor, the wind slabs will be more reactive. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2qjm3","text":"Looming cornices may be large and fragile. With respect, give them a wide berth from above and below.
Moderate to strong westerly wind will redistribute the recent snow and form fresh wind slabs in lee terrain in the alpine and at exposed treeline. Wind slabs will particularly be reactive anywhere they overlie surface hoar that was reported to be widespread in many sheltered areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"hq77","text":"Loose-dry avalanches are likely in steep terrain features.
A weak layer of surface hoar buried mid January is down 40-120 cm and may be found on sheltered slopes near treeline in northern parts of the region. Deeper layers from early December and November can still be found in the snowpack.  These layers may become reactive with additional snow load or in shallow, rocky, or thin to thick snowpack areas.
New snow combined with moderate to strong northwest wind is creating touchy wind slabs in lee terrain features. These wind slabs may be sitting on top of weak surface hoar crystals in lower alpine and treeline areas, which would make them more easy to trigger.
Previous wind from southwest to northwest has formed wind slabs in lee features at upper elevations. These may remain reactive to human triggers Sunday.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eobum","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"67gh6","text":"In wind sheltered areas, low density storm snow may be prone to sluffing especially with skier traffic.
Up to 30 cm of new snow fell by Wednesday morning. Storm slabs may continue to be reactive on Friday, especially in localized areas that received higher snowfall amounts. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4ivv0","text":"Loose dry avalanches may occur from steep terrain features.
outhwest switching to northwesterly winds may form reactive wind slabs on a variety of aspects at treeline and above.
Southwest switching to northwesterly winds may form reactive wind slabs on a variety of aspects at treeline and above.
Wind slabs may continue to be reactive and easily triggerable by humans at upper elevations.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
A widespread weak layer consisting of a crust, with facets and/or surface hoar overtop is now down about 80-150 cm. This layer may still produce large avalanches in areas that have not already avalanched.
30-70 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind will likely add cohesion and load to these weak layers resulting in a reactive persistent slab problem.
Moderate wind from the west-northwest has redistributed recent storm snow to leeward slopes and terrain features building fresh wind slabs.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"71oa4","text":"Cornices are large and fragile and don't respond well to rapid change- like new load from snow, rapid warming or rapid cooling. They deserve respect and a wide berth from above and below.
30-60 cm sits above a buried weak interface that consists of surface hoar, facets, and/ or a crust. Forecast snow and strong wind may create enough cohesion and load to these weak layers resulting in a reactive persistent slab problem just waiting for a skier or rider to trigger.
A surface hoar layer buried near the end of January down 30-50 cm has recently become reactive in the south and central parts of the region. Additionally there is a another surface hoar layer down 40-70cm in the northern part of the region around Pine Pass.
50-100 cm of snow sits on a widespread weak layer that consists of facets, surface hoar, or a crust depending on location. Avalanches may propagate widely on this layer.
Wind slabs formed last week have likely grown old and tired, but we're expecting more wind from the northeast, east and southeast this week which could form fresh wind slabs in unusual locations.
New snow this week has combined with moderate to strong northwest wind to create wind slabs which may remain reactive in lee terrain features. These wind slabs may be sitting on top of weak surface hoar crystals in lower alpine and treeline areas, which would make them easier to trigger Sunday.  Cold temperatures and time should reduce the likelihood of triggering these as we head into the work week.
Storm snow is most likely to show slab properties where it has been deposited into wind slabs in lee terrain features. Wind slabs are most reactive during their formation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eobum","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"67gh6","text":"In wind sheltered areas, low density storm snow may be prone to sluffing especially with skier traffic.
A wind slab problem exists in the north of the region. Wind slabs may remain reactive especially where they sit over a crust on solar aspects, at ridgetops and roll-overs.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":55,"style":"BOLD"},{"offset":34,"length":5,"style":"IT
Variable wind has formed reactive slabs on multiple aspects, and wind will continue to impact loose snow. Avalanches will be most likely in wind loaded areas and where the snow feels stiff or punchy.
Recent wind from southwest to northwest has blown recent snow into wind slabs in lee features at upper elevations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5fpmd","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"67gh6","text":"In wind sheltered areas, low density storm snow may be prone to sluffing especially with skier traffic.
Though most winds have been light, there have been some localized moderate to strong winds from variable directions (will likely switch to southerly Sunday) . Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent layer.
A persistent weak layer buried 70 to 100 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.  Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":190,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
Though most winds have been light, there have been some localized moderate to strong winds from variable directions (will likely switch to southerly Sunday) . Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvqpn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4v4m0","text":"
Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions. Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent layer in isolated areas .","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvqpn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4v4m0","text":"
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
Shifting winds from north to east to south have formed a complex pattern of wind slabs at upper elevations that will likely remain sensitive to human triggers. Given the potential for cross-loading and reverse-loading, treat all aspects as suspect. Cornices may be reaching their breaking point.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
Intermittent ridgetop winds have redistributed recent low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger.
Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions. Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent layer.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
Intermittent ridgetop winds have redistributed the low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1n9jn","text":"
New snow last week with moderate to strong northwest wind formed wind slabs that may remain reactive in lee terrain features. These wind slabs may be sitting on top of weak surface hoar crystals in lower alpine and treeline areas, which would make them easier to trigger.
Variable winds may carry loose snow and build wind slabs in exposed and open features. Use caution around ridges, cornices, and loaded features. In steeper terrain, be cautious of dry-loose avalanches and mindful of sluffing.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
Periods of moderate wind have redistributed recent low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger. Strong sun may weaken cornices, which can act as triggers on slopes below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1q1rq","text":"
A weak layer of surface hoar is buried 50-80cm on sheltered slopes near and below treeline. Activity appears to be slowing on this layer, though it may be possible to trigger in isolated areas.
Periods of moderate wind have redistributed recent low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger. Strong sun may weaken cornices, which can act as triggers on slopes below.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches in surface layers have greater potential to step down to deeper weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
Intermittent wind over the past few days could form triggerable wind slabs on lee features at upper elevations.
40-80 cm of recent storm sits overtop a thick layer of weak, sugary facets. In the Monashees, this interface appears to be bonding well, while reactivity may persist longer in the Selkirks.
Periods of moderate wind have redistributed recent low density snow into wind slabs on lee features at upper elevations that may be possible to human trigger. Strong sun may weaken cornices, which can act as triggers on slopes below.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1q1rq","text":"
Recent wind from southwest to northwest has blown recent snow into wind slabs in lee features at upper elevations. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5fpmd","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"67gh6","text":"In wind sheltered areas, low density storm snow may be prone to sluffing with skier traffic.
Cold temperatures are gradually robbing them of cohesion, but some wind slabs may remain reactive to human triggering. More recent slab formations and places where wind slab may have formed over sun crust (south aspects) are the biggest concern.
60-100 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Variable winds may carry loose snow and build wind slabs in exposed and open features. Use caution around ridges, cornices, and loaded features. In steeper terrain, be cautious of dry-loose avalanches and mindful of sluffing.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches in surface layers have greater potential to step down to deeper weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
Strong westerly wind in the southeast of the region might have formed reactive wind slabs in lee terrain features in the alpine and open areas at treeline on Friday. Moderate west wind will continue to form wind slabs throughout the day. Look out for wind slabs in unusual places. Recently localized moderate to strong winds blew from variable directions. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"er379","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6u0da","text":"Wind slabs are slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer.
Despite decreasing avalanche danger, it remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
We've recently had wind from a variety of directions including but not limited to north and east.  This has resulted in wind slabs that are spread across many terrain features and aspects. Cold temperatures and time are likely allowing these slabs to become old and tired.  Watch for fresh wind slabs Sunday as strong southeast wind Saturday night may form new wind slabs where there is snow available for transport.
Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions during the weekend. Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer.
Elevated and shifting winds have transformed exposed areas into a complex minefield of wind slabs. Many new (touchy!) and recent (still reactive) slabs have formed over an interface of slippery crust (think solar aspects) or weak, faceted snow, contributing to and sustaining their reactivity. West/Northwest wind is expected to pick up Tuesday afternoon which will likely form yet another round of potentially touchy wind slabs.
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
40-80 cm of recent snow sits overtop a thick layer of weak, sugary facets. In the Monashees, this interface appears to be bonding well, while reactivity may persist longer in the Selkirks.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b364b","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed of surface hoar. In most areas, it has healed under the weight of the overlying snow but we are still seeing isolated activity in the far south of the region. These events have been skier triggered, around size 2 in steep, cliffy, unsupported terrain around treeline.
Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions. These winds have redistributed loose snow developing wind slabs in lee features, especially in the alpine and open areas at treeline. Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent layer in isolated areas.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvqpn","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4v4m0","text":"In sheltered zones the surface snow is becoming faceted and sugary and sluffing should be expected in steep terrain.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This layer has been the most reactive at treeline, where it exists as surface hoar, but attention should also be paid to steep alpine terrain where avalanches in surface layers have greater potential to step down to deeper weak layers from the early season.","type":"unstyled","depth":0,"inlineSty
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
Sun and rising temperatures may produce a moist snowpack by the afternoon
A persistent weak layer buried 60 to 120 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.  Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":190,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
Cornices have seen substantial growth since the last storm, and they may release naturally with the impact of solar radiation. Cornice falls can act as triggers on slopes below.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
Recent elevated and shifting winds transformed exposed areas into a complex minefield of wind slabs. Many new and recent (still reactive) slabs have formed over an interface of slippery crust (think solar aspects) or weak, faceted snow, contributing to and sustaining their reactivity. New flurries may hide older, but still reactive slabs.
Watch for fresh wind slabs with new snow and moderate northwest wind forecast for Tuesday. Keep in mind recent wind has shifted directions and spread wind slabs across many terrain features and aspects.
Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions. These winds have redistributed loose snow developing wind slabs in lee features, especially in the alpine and open areas at treeline. Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer. In some locations wind slabs sit directly on the persistent weak layer. Recent avalanches were triggered by humans on mellow slopes and 60 cm deep.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fjl6u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4v4m0","text":"In sheltered zones the surface snow is becoming faceted and sugary and sluffing should be expected in steep terrain.
50-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
A persistent weak layer buried 40 to 80 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":61,"length":23,"key":0},{"offset":189,"length":8,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/b05a04fa-1de4-4a3f-9ec1-014329d86d48"}},"1":{"type":
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during the heat of the day.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. In some areas, two layers of surface hoar are buried in close proximity, 30-70 cm deep. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions during the weekend. Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer. In some locations wind slabs sit directly on the persistent weak layer. Recent reports suggested avalanches failing up to 70 cm deep. These avalanches can be triggered from a distance away.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions. These winds have redistributed soft snow forming wind slabs in lee features, especially in the alpine and open areas at treeline. Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fjl6u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4v4m0","text":"Once the sun comes out wet loose avalanches might release on steep solar aspects.
Moderate southwest wind will form fresh wind slabs in lee terrain features in the alpine and exposed treeline where soft snow is available for transport. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5a22c","text":"Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions over the weekend. Newer reactive wind slabs will be slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6tqbe","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6rc8r","text":"Once the sun comes out wet loose avalanches might release on steep solar aspects.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
60-80 cm of snow sits on a persistent weak layer that was buried near the end of January. This surface hoar/crust interface is slowly gaining strength but may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Moderate southwest wind will continue to form touchy wind slabs in lee terrain features in the alpine and exposed treeline. Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions over last weekend. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5s0cs","text":"These wind slabs are slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
In areas that have received fresh snow over the past few days, storm snow is settling over a variety of surfaces. More reactive slabs will be found in areas with deeper accumulations or impacted by wind. This problem is more likely in the southern half of the region where 15-30 cm recent snow is not bonding well to old surfaces.
A weak layer of surface hoar is buried 40-70 cm deep that may be possible to human trigger. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. In some areas, two layers of surface hoar are buried in close proximity, 30-70 cm deep. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":134,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region. Although we haven't received any reports of persistent slab activity in the most recent storm cycle, we don't believe that these limited results are conclusive enough to declare the problem gone.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-120 cm deep throughout the region.
In areas that have received fresh snow over the past few days, storm snow is settling over a variety of surfaces. More reactive slabs will be found in areas with deeper accumulations or impacted by wind. This problem is more likely in the southern half of the region (ex. Allison Pass and closer to the US border).
A persistent weak layer buried 40-70 cm deep remains sensitive to human triggering as evidenced Wednesday. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. In some areas, two layers of surface hoar are buried in close proximity, 30-70 cm deep. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":86,"length":19,"key":0},{"offset":149,"length":8,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/b05a04fa-1de4-4a3f-9ec1-014329d86d48"}},"1":{"type":
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
It remains possible to trigger persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 60-100 cm deep throughout the region.
This problem is isolated to the Coquihalla area where 20-30 cm of new snow will form a widespread storm slab problem at all elevations. Natural avalanches will be likely on wind-loaded slopes.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
Moderate southwest wind and new snow will form fresh wind slabs in lee terrain features in the alpine and exposed treeline. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5a22c","text":"Look out for wind slabs in unusual places. There have been some localized moderate to strong winds from variable directions over the weekend. These wind slabs are slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer.
Moderate westerly wind is forming fresh wind slabs on northeast to southeast facing lee terrain features in the alpine and open areas at treeline. Look out for wind slabs in unusual places. Recently localized moderate to strong winds blew from variable directions. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"er379","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6u0da","text":"Wind slabs are slow to bond where they sit over cold sugary facets. There is also potential for wind slabs to step down to the late January persistent weak layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ccak5","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1qlo8","text":"When the sun comes out wet loose avalanches might release on steep slopes which are directly hit by the sun.
Persistent slab avalanches are most likely in the northern Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts.
40-80 cm of recent storm snow sits on a layer of weak, sugary facets. At upper elevations, the recent snow has been blown into reactive slabs in lee features. Recent avalanches have propagated widely and surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Two more persistent weak layers are buried between 80-200 cm. These have not produced recent avalanches in the region that we know of, but have been responsible for several recent large avalanches in the neighboring North Rockies region, including two fatal avalanches in the past week.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Many large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, found around 50 to 80 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February. Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2hcb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"908ob","text":"We are still seeing isolated avalanche activity on these layers, and would be a little extra cautious as slopes warm up in the coming days.
Cornices are large, looming, and require extra caution under the current conditions.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Cornices will weaken with sunny skies and relatively mild air temperature. The snow on sun-exposed slopes may also weaken, so use caution during the heat of the day.
40-80 cm of recent storm snow sits overtop a thick layer of weak, sugary facets. At upper elevations, the recent snow has been blown into thick, reactive slabs in lee features. Due to the weak interface, storm slabs have shown very wide propagation across slopes in recent avalanches that have surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Another persistent weak layer is buried 80 to 120 cm deep. We don't yet have enough data to say for sure whether or not it continues to be a problem at this point. On the one hand, we have not yet heard any reports of recent large avalanches stepping down to this layer, which is encouraging, and the weight of the overlying snow is likely causing it to bond. On the other hand, this layer has been associated with a recent fatal avalanche in the neighboring North Rockies region, so we want to do our due diligence before we take it off our radar.
West to southwest wind will build fresh and reactive wind slabs. These may be easily triggered by the weight of a skier or rider. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a1oms","text":"Loose-dry avalanches may be easily triggered from steep terrain features.
There are two main persistent weak layers of concern in the snowpack. The most recent is buried anywhere from 10-50 cm and was buried in mid-February. The next layer of concern consists of surface hoar, facets, and/or crusts, and is down 40-80 cm.
4 to 8 cm of new snow is expected Wednesday night with strong south/southeast wind.  Another 2 to 4 cm is forecast for Thursday as wind switches to the northwest. Fresh, shallow & sensitive storm slabs are likely to form.
Cornices are large, looming, and require extra caution under the current conditions.
There are several persistent weak layers in the snowpack. The most recent is down 40-80 cm and was formed during the recent cold snap.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
60+ cm of aging storm snow rests on hard wind-affected snow, weak facets, and perhaps weak surface hoar in sheltered areas.  This snow needs time to settle and stabilize before we can begin to trust it.
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region.
This layer continues to be easily triggered by skiers and riders. Small terrain features are producing small avalanche results, bigger features produce larger more dangerous avalanches. 40-70 cm of snow sits above a buried weak layer consisting of surface hoar, facets, and a crust (depending on elevation and aspect). ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7pdd5","text":"The surface hoar interface is the biggest repeat offender, and things have been most reactive on northerly and easterly aspects at treeline and the treeline/alpine interface, but don't let your guard down elsewhere! These kinds of avalanches can happen in surprisingly mellow terrain and can be triggered from a distance away. This MIN report from Wednesday is a good illustration. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":327,"length":15,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://w
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region.
40-80 cm of recent snow sits overtop a thick layer of weak, sugary facets. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b364b","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed of surface hoar. We are still seeing isolated activity on this layer.
A persistent slab has recently been reactive to rider and explosive triggering over the past few days. There is anywhere from  80 to 200 cm of snow above a mixed bag of old snow surfaces buried in mid-February. This weak layer will be deeper after Sunday's storm. The primary concern now is storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
40-80 cm of recent storm snow sits on a layer of weak, sugary facets. At upper elevations, the recent snow has been blown into reactive slabs in lee features. Recent avalanches have propagated widely and surprised riders.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c3g1u","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3cvj7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7km1c","text":"Two more persistent weak layers are buried between 80-200 cm. These have not produced recent avalanches in the region that we know of, but have been responsible for several recent large avalanches in the neighboring North Rockies region, including two fatal avalanches in the past week.
A buried persistent weak layer still lingers 50-100 cm deep. Despite limited recent avalanche activity, the gradual load of new snow and mild temperatures could be adding stress to this layer. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Switching northwest and southwest wind will build fresh and reactive wind slabs. These may be easily triggered by the weight of a skier or rider. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a1oms","text":"Loose-dry avalanches may be easily triggered from steep terrain features.
There is anywhere from 40 to 80 cm of snow above a mixed bag of old snow surfaces including hard wind pressed snow, sugary facetted snow, feathery surface hoar in sheltered locations that were buried in mid-February. A lot of uncertainty surrounds this interface and it may be reach the threshold with additional snow and wind forecast. The primary concern now is wind or storm slab avalanches stepping down to this layer and skier or rider triggering which would result in a large, consequential avalanche.
West to southwest wind will build fresh and reactive wind slabs. These may be easily triggered by the weight of a skier or rider. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"giu9","text":"Loose-dry avalanches may be easily triggered from steep terrain features.
Switching northwest and southwest wind will build fresh and reactive wind slabs. These may be easily triggered by the weight of a skier or rider. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"giu9","text":"Loose-dry avalanches may be easily triggered from steep terrain features.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Cornices are large, looming, and require extra caution under the current conditions.
10-20 cm of new snow fell on Thursday with the heavier amounts in the southern parts of the region. This was accompanied by strong wind. Switching northwest and southwest wind will build fresh and reactive wind slabs. As the natural avalanche activity tapers off, these slabs may continue to be primed for skier and rider triggering. The slabs could be 20 to 50 cm thick, depending on how much snow fell in your riding area. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"giu9","text":"Loose-dry avalanches may be easily triggered, especially if the sun pokes out.
Cornices are large, looming, and require extra caution under the current conditions.
Storm slabs may continue to be reactive, especially in wind-loaded areas.
Many large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, found around 70 to 100 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region.
20-30 cm of new snow fell by Thursday afternoon, forming new storm slabs. The wind is forecast to howl from the southwest to northwest, so wind slabs will rapidly build at treeline and alpine elevations as well. Including the weekend's snow, around 40 to 80 cm of recent storm snow will have built above the surfaces formed mid-February, potentially including weak surface hoar and/or faceted grains. These slabs will remain likely for riders to trigger on Thursday. Should 25 cm or more snow accumulate, another natural avalanche cycle may occur on Thursday.
40-80 cm of recent snow sits on a persistent weak layer of facets. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b364b","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. We are still seeing isolated activity on this layer.
There are several persistent weak layers in the snowpack. The most recent is down 40-80 cm and was formed during the recent cold snap.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
Loads of large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, now found around 50 to 100 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and they can easily be remotely triggered.
A persistent weak layer buried 70 to 100 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.  Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":190,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region.
40-80 cm of recent snow sits on a persistent weak layer of facets. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b364b","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. We are still seeing isolated activity on this layer.
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5i64p","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. We are still seeing isolated activity on this layer.
The persistent slab has recently been reactive to rider and explosive triggering over the past few days. There is anywhere from  90 to 250 cm of snow above a mixed bag of old snow surfaces buried in mid-February.  The primary concern now is storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
A persistent weak layer buried 40 to 80 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":61,"length":23,"key":0},{"offset":189,"length":8,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/b05a04fa-1de4-4a3f-9ec1-014329d86d48"}},"1":{"type":
A persistent weak layer buried 60 to 120 cm deep has produced large avalanches this month. There is potential that it may experience a resurgence this weekend, with loading from new snow and storm slab avalanches. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":256,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
There are several persistent weak layers in the snowpack. The most recent is down 40-80 cm and was formed during the recent cold snap.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
A persistent weak layer buried 70 to 100 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.  Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":190,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A persistent weak layer buried 60 to 120 cm deep has produced large avalanches this month. There is potential that it may experience a resurgence this weekend, with loading from new snow and storm slab avalanche activity. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees. Avalanches failing on this interface will be large and destructive.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":264,"length":8,"key":0}],"data":{}}],"entityMap":{"0":{"type":
A persistent weak layer buried 40 to 80 cm deep has produced recent large avalanches and is expected to become increasingly reactive this weekend. This layer has been most sensitive around treeline, but may also extend into alpine terrain and/or down into the trees.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":61,"length":23,"key":0},{"offset":189,"length":8,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/b05a04fa-1de4-4a3f-9ec1-014329d86d48"}},"1":{"type":
A persistent weak layer buried 80 to 180 cm deep is being tested by significant new snow loads. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, to determine whether or not it continues to be a problem.
A persistent weak layer buried 70 to 120 cm deep is being tested by significant new snow loads. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, to determine whether or not it continues to be a problem.
A persistent weak layer buried 80 to 160 cm deep is being tested by significant new snow loads. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, to determine whether or not it continues to be a problem.
Wind slabs are expected to be reactive in lee terrain with ongoing moderate to strong southerly wind. Previous variable wind direction means that wind slabs may be found on all aspects, but the most reactive ones will likely be found on northerly aspects.
There is a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 30-60 cm deep throughout the region. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, which may offer insight as to whether or it continues to be a problem.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Loads of large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, now found around 50 to 100 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and they can easily be remotely triggered.
A persistent weak layer buried 80 to 180 cm deep is being tested by significant new snow loads. We are awaiting reports of avalanche activity during the storm, specifically whether they indicate step- downs to this layer, to determine whether or not it continues to be a problem.
There may be a lingering possibility of triggering persistent slab avalanches in isolated steep terrain features. The primary layer of concern is layer of surface hoar, facets, and/or crusts buried 40-80 cm deep throughout the region. Although we haven't received any reports of persistent slab activity in the most recent storm cycle, we don't believe that these limited results are conclusive enough to declare the problem gone.
Cornices are large and looming, and they require extra caution under the current conditions.
West to southwest wind has formed reactive wind slabs on leeward slopes. These could be triggered by the weight of a skier or rider, especially on east-northeast aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a1oms","text":"Large looming cornices exist along ridgelines and require a wide berth from above and below, especially when they're baking in the sun.
A persistent weak layer 50-100 cm deep continues to show reactivity in snowpack tests, despite not producing avalanches in the past week. This surface hoar/crust interface may remain human triggerable in steep convex features at treeline and potentially steep alpine features where it presents as a crust.
Switching northwest and southwest wind will build fresh and reactive wind slabs. As the natural avalanche activity tapers off, these slabs may continue to be primed for skier and rider triggering. The slabs could be 20 to 50 cm thick, depending on how much snow fell in your riding area. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4bhb","text":"Loose-dry avalanches may be easily triggered, especially if the sun pokes out.
Cornices are large, looming, and require extra caution under the current conditions.
Cornices are large, looming, and require extra caution under the current conditions.
Cornices are large and looming. A warming trend and sunny skies will weaken cornices, increasing the likelihood of them releasing naturally or from the weight of a person.
The persistent slab has been reactive to rider and explosive triggering over the past week. There is anywhere from  90 to 250 cm of snow above a mixed bag of old snow surfaces buried in mid-February.  The concern now is for storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4viia","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2vnei","text":"The late January persistent weak layer is down 70-120 cm. Though avalanches on this layer have been sporadic, they have been large.
Storm slabs may continue to be reactive, especially in wind-loaded areas.
West to southwest wind has formed reactive wind slabs on leeward slopes. These could be triggered by the weight of a skier or rider, especially on east-northeast aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bh08c","text":"Large looming cornices exist along ridgelines and require a wide berth from above and below, especially when they're baking in the sun.
There are a few layers of concern with the first major warm up happening this week.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"b9fa7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"did3f","text":"1) A spotty layer of small surface hoar crystals is buried 20-40 cm deep around treeline. It won't take long for the warm temperatures to affect the snow this depth. We may see isolated avalanche activity on this layer in the early days of the warm up, but beyond that, the warming will likely help this layer heal.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d7tud","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6nbon","text":"2) A persistent weak layer buried 80-150 cm deep is composed of a combination of surface hoar, crusts and facets formed on the surface in late January. The problem seems to be most pronounced in thin snowpack areas on solar aspects. Recently we have seen large explosive loads and storm slab avalanches in motion produce avalanches on this layer. Rapid warming, strong sun or loose wet avalanches could serve as triggers for large, destructive avalanches this week.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9rvs9","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2676k","text":"3) Basal facets in shallow snowpack areas in the east of the region could be susceptible to shock from the warm temperatures this week. Extra caution should be exercised in these types of snowpacks. Avalanches on this layer are most likely human triggered from shallow rocky areas, which then propagate out to thicker spots, resulting in large avalanches. ","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":42,"length":25,"style":"B
Cornices are large, looming, and require extra caution under the current conditions.
Many large avalanches have been triggered on this layer of surface hoar, faceted grains, and/or a melt-freeze crust, found around 50 to 80 cm deep. The layer has been most problematic around treeline elevations and in openings below treeline, but also reaches into the lower alpine. Avalanches have occurred on surprisingly shallow slope angles and the layer can easily be remotely triggered.
Cornices are large, looming, and require extra caution under the current conditions.
Large looming cornices exist along ridgelines and require a wide berth from above and below. The likelihood of them becoming weak and failing is greater with warming and solar radiation. They have the potential to trigger slab avalanches from slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5g55r","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9ji11","text":"West to southwest wind has formed pockets of wind slab on leeward slopes. These could be triggered by the weight of a skier or rider, especially on east-northeast aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a1oms","text":"
Reactive wind slabs likely exist in steep open terrain at alpine and treeline elevations, especially on north and east aspects.
Reactive wind slabs may linger in steep open terrain at alpine and treeline elevations, especially on north and east aspects.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger old stubborn persistent weak layers, it's a large falling cornice.
A natural persistent slab size 3 was reported on Tuesday and has been reactive to rider and explosive triggering over the past week. There is anywhere from  90 to 250 cm of snow above a mixed bag of old snow surfaces buried in mid-February.  The concern now is for storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
Reactive wind slabs likely exist in steep open terrain at alpine and treeline elevations, especially on north and east aspects.
The sun packs a punch this time of year. Periods of sunshine could trigger loose wet avalanches. Keep your head up and watch for obvious signs of warming like natural avalanches, snowballing, moist and sticky snow surfaces. Large, looming cornices exist along ridgelines. They may become weak and fail during periods of solar radiation and rising freezing levels. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d2r2i","text":"
There is anywhere from 40 to 80 cm of snow above a mixed bag of old snow surfaces including hard wind pressed snow, sugary facetted snow, feathery surface hoar in sheltered locations that were buried in mid-February. A lot of uncertainty surrounds this interface but it may reach threshold with additional snow and wind forecast. The primary concern now is wind or storm slab avalanches stepping down to this layer and skier or rider triggering which would result in a large, consequential avalanche.
Reactive wind slabs likely exist in steep open terrain at alpine and treeline elevations, especially on north and east aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fqunl","text":"
Cornices are large and looming, and they may release naturally under the current conditions. Cornice falls can act as triggers on slopes below.
Reactive wind slabs likely exist in steep open terrain at alpine and treeline elevations, especially on north and east aspects.
Cornices have seen substantial growth since the last storm, and they may release naturally with the impact of solar radiation. Cornice falls can act as triggers on slopes below.
There is anywhere from 40 to 80 cm of snow above a mixed bag of old snow surfaces including hard wind pressed snow, sugary facetted snow, feathery surface hoar in sheltered locations that were buried in mid-February. A lot of uncertainty surrounds this possible interface and in places where it exists, it may reach threshold with more snow in the forecast. The main concern being wind or storm slab avalanches possibly stepping down to this layer and skier or rider triggering which would result in a consequential avalanche. ","type":"unstyled","depth":0,"inlineStyl
The persistent slab has been reactive to rider and explosive triggering over the past few days. There is anywhere from  90 to 250 cm of snow above a mixed bag of old snow surfaces buried in mid-February.  The concern now is for storm slab avalanches stepping down to this deep layer and skier or rider triggering which would result in a very-large, consequential avalanche.
West to southwest wind has formed reactive wind slabs on leeward slopes. These could be triggered by the weight of a skier or rider, especially on east-northeast aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bh08c","text":"Large looming cornices exist along ridgelines and require a wide berth from above and below, especially if they're baking in the sun.
West to southwest wind has formed reactive wind slabs on leeward slopes. These could be triggered by the weight of a skier or rider, especially on east-northeast aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a1oms","text":"Large looming cornices exist along ridgelines and require a wide berth from above and below, especially if they're baking in the sun.
Large looming cornices exist along ridgelines and require a wide berth from above and below. The likelihood of them becoming weak and failing is HIGH with warming and solar radiation. They have the potential to trigger slab avalanches from slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"89bmu","text":"West to southwest wind has formed isolated wind slabs on leeward slopes. These could be triggered by the weight of a skier or rider, especially on east-northeast aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bh08c","text":"
Warm air temperature and periods of sunshine will increase the likelihood of triggering wet loose avalanches, particularly on solar aspects. Resulting avalanches are expected to be small, so the most likely place to get into trouble is in steep, extreme terrain.
n the north of the region, cornices have seen substantial growth since the last storm, and they may release naturally with the impact of solar radiation. Cornice falls can act as triggers on slopes below. ","type":"unstyled","depth":0,"inlineStyl
There are two main persistent weak layers of concern in the snowpack. The most recent is buried anywhere from 10-50 cm and was buried in mid-February. The next layer of concern consists of surface hoar, facets, and/or crusts, and is down 40-80 cm.
Two weak layers may exist between 30 and 100 cm deep. Widespread avalanche activity has already occurred on the layers, but they could still be triggered anywhere they haven't already failed. Look for signs of instability and continue treating the snowpack as suspect if you are uncertain whether the layer is still present in your riding area. The warm temperatures may increase the reactivity of these layers.
Cornices are large, looming, and can become weak with rapid warming. Avoid exposure to slopes with cornices overhead and stay well back of them when travelling on ridgetop.
Wind slabs are expected to be reactive in lee terrain with moderate to strong southerly winds in the forecast.  Previous variable wind direction means that wind slabs may be found on all aspects. The most reactive ones are likely to be found on northerly aspects.
60-100 cm of snow sits on a persistent weak layer of facets that was buried in mid-February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5i64p","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"g6at","text":"Another persistent weak layer buried 80-120 cm deep is composed mainly of surface hoar. We are still seeing isolated activity on this layer.
Warming temperatures could temporarily increase the likelihood of large persistent slab avalanches. There are several potential layers of concern across the region that have produced some sporadic activity over the past weeks.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Cornices are large, looming, and can become weak with rapid warming. Avoid exposure to slopes with cornices overhead and stay well back of them when travelling on ridgetop.
A modest supply of new snow has fueled the continued formation of cornices and thin but potentially reactive wind slabs on a variety of aspects.
There are a few layers of concern with the major warm up happening Thursday:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"did3f","text":"1) A spotty layer of small surface hoar crystals is buried 20-40 cm deep around treeline. It won't take long for the warm temperatures to affect the snow this depth. We may see isolated avalanche activity on this layer in the early days of the warm up, but beyond that, the warming will likely help this layer heal.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6nbon","text":"2) A persistent weak layer buried 80-150 cm deep is composed of a combination of surface hoar, crusts and facets formed on the surface in late January. The problem seems to be most pronounced in thin snowpack areas on solar aspects. Recently we have seen large explosive loads and storm slab avalanches in motion produce avalanches on this layer. Rapid warming, strong sun or loose wet avalanches could serve as triggers for large, destructive avalanches this week.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2676k","text":"3) Basal facets in shallow snowpack areas in the east of the region could be susceptible to shock from the warm temperatures this week. Extra caution should be exercised in these types of snowpacks. Avalanches on this layer are most likely human triggered from shallow rocky areas, which then propagate out to thicker spots, resulting in large avalanches. ","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":42,"length":25,"style":"B
There is anywhere from 90 to 250 cm of snow above a persistent weak layer buried in mid-February. The concern now is for storm slab avalanches stepping down to this deep layer, or human triggering which would result in a very large, high consequence avalanche.
Large cornices exist along ridgelines and require a wide berth from above and below. The likelihood of them becoming weak and failing is greater with warming and solar radiation. They have the potential to trigger slab avalanches from slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5g55r","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9ji11","text":"West to southwest wind has formed pockets of wind slab on leeward slopes. These could be triggered by the weight of a skier or rider, especially on east-northeast aspects. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a1oms","text":"
Large cornices exist along ridgelines and require a wide berth from above and below. The likelihood of them becoming weak and failing is HIGH with warming and solar radiation. They have the potential to trigger slab avalanches on the slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bh08c","text":"
Wind slabs are expected to be reactive in lee terrain with ongoing moderate to strong southerly wind.
Uncertainty about buried weak layers warrants conservative terrain choices. There are several persistent weak layers 50-150 cm below the surface that have produced large natural and human triggered avalanches in the last week of February and first week of March. It is too soon to write these layers off and they could still be reactive, especially on south-facing slopes when the sun is out.
Warming temperatures may have temporarily increased the likelihood of large persistent slab avalanches. There are two potential layers of concern buried 60-120 cm deep across the region that have produced some sporadic activity over the past weeks.
The persistent slab problem appears to have been put to rest in deep snowpack areas in the west of the region, but on the eastern slopes (e.g. Kakwa/Tumbler Ridge) there have been very large recent natural avalanches. The rising freezing levels last weekend combined with daytime warming this week may wake this problem up. The most likely triggers are surface avalanches stepping down, cornice fall, or the weight of a machine or a person hitting a thin-spot.
The persistent slab problem appears to have been put to rest in deep snowpack areas in the west of the region, but on the eastern slopes (e.g. Kakwa/Tumbler Ridge) there have been very large recent natural avalanches. The most likely triggers are surface avalanches stepping down, cornice fall, or the weight of a machine or a person hitting a thin-spot.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer may increase in the coming days as the forecast storm rapidly loads it.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer may be decreasing as the days progress, but the consequence of doing so would be high.
Persistent slab avalanches may remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Warm temperatures and periods of strong sun will destabilize the upper snowpack in coming days. Start and finish early to reduce your exposure and be mindful of overhead terrain exposed to the sun. Larger wet loose avalanches or cornice falls could also trigger deeply buried weak layers.
Cornices will weaken with sunny skies and relatively mild air temperature. The snow on sun-exposed slopes may also weaken, so use caution during the heat of the day.
Uncertainties about buried weak layers warrants conservative terrain choices. There are numerous persistent weak layers 50-150 cm below the surface that produced large natural and human triggered avalanches in the last week of February. We are uncertain whether time has helped these weaknesses heal or whether they are still reactive to human triggering.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Warm temperatures and sunny skies can increase the likelihood of cornice failures. A cornice fall can be hazardous on its own. Minimize exposure to slopes that have cornices overhead, especially during the heat of the day.
Assuming there's still snow available for transport, the wind should be building new wind slabs to the lee of the wind (north through east slopes) and in cross-loaded features.
In the north of the region, a weak layer of facets buried in mid-February is a lingering concern, primarily in areas where it separates wind-stiffened snow above and below. This snowpack structure is most suspect on northerly aspects at upper treeline elevations. Large triggers, such as an avalanche in motion, cornice fall, or intense loading from snow and wind could initiate this deeper layer. ","type":"unstyled","depth":0,"inlineStyl
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer increases as the storm rapidly loads it.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6i6iu","text":"Failing cornices may trigger avalanches on this layer on the slopes below and create very large avalanches.
Cornices weaken significantly when exposed to sun and warm temperatures. When they fail, they can have enough mass to be very destructive, and they can also trigger slab avalanches on the slopes below them.
Uncertainties about buried weak layers warrants conservative terrain choices. There are numerous persistent weak layers 50-150 cm below the surface that produced large natural and human triggered avalanches in the last week of February. We are uncertain whether time has helped these weaknesses heal or whether they are still reactive to human triggering.
Cornices will weaken with sunny skies and relatively mild air temperature. The snow on sun-exposed slopes may also moisten, so use caution during the heat of the day.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer may be decreasing as the days progress, but the consequence of doing so would be high.
Cornices are large and looming, and they may release naturally under the current conditions. Cornice falls can act as triggers on slopes below.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Large cornices exist along ridgelines and require a wide berth from above and below. They have the potential to trigger slab avalanches on the slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bh08c","text":"
Large cornices exist along ridgelines and require a wide berth from above and below. They have the potential to trigger slab avalanches from slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5g55r","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9ji11","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a1oms","text":"
There is anywhere from 90 to 250 cm of snow above a persistent weak layer buried in mid-February. The concern now is for storm slab avalanches stepping down to this deep layer, or human triggering, which would result in very large, high consequence avalanches.
Two persistent weak layers exist in the snowpack that could be triggered by riders:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"271l5","text":"The upper layer is buried 30 to 60 cm and primarily consists of weak faceted grains.","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"28fmc","text":"The deeper layer is buried 60 to 100 cm and consists of surface hoar, faceted grains, and/or a hard crust.","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c2fn8","text":"The most likely areas to trigger these layers is where a hard wind slab exists above the layers and where the snowpack is not capped by a thick melt-freeze crust. Warm temperatures and solar input may increase the reactivity of these two layers.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces while travelling like moist or wet snow, snowballing or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity.
Cornice failure is likely this weekend as the strong mid-March sun and warming temperatures go to work.  As cornices impact underlying slopes there is potential for them to trigger persistent slab avalanches.
Big warm ups, like the one headed our way this weekend often awaken dormant weak layers resulting in large avalanches. Steep, rocky, convex terrain with a shallow or thin to thick snowpack are examples of places where triggering these layers are more likely.
Naturally triggered wet loose avalanches are likely, especially on steep solar aspects in the alpine.
Uncertainties about buried weak layers warrants conservative terrain choices. There are several persistent weak layers 50-150 cm below the surface that have produced large natural and human triggered avalanches in the last week of February. We are uncertain whether time has helped these weaknesses heal or whether they are still reactive to human triggering.
Cornices will weaken with sunny skies and relatively mild air temperature. The snow on sun-exposed slopes may also moisten, so use caution during the heat of the day.
Naturally triggered wet loose avalanches are likely, especially on steep solar aspects in the alpine.
n the north of the region, cornices have seen substantial growth since the last storm, and they may release naturally with the impact of solar radiation. Cornice falls can act as triggers on slopes below. ","type":"unstyled","depth":0,"inlineStyl
Naturally triggered wet loose avalanches are likely, especially on steep solar aspects in the alpine.
Cornices have seen substantial growth since the last storm, and they may release naturally with the impact of solar radiation. Cornice falls can act as triggers on slopes below.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Cornices have seen substantial growth since the last storm, and they may release naturally with the impact of solar radiation. Cornice falls can act as triggers on slopes below.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during the heat of the day.
Cornices are large and looming along many ridgelines. Cornices may weaken during daytime heating, increasing the likelihood of being naturally triggered or failing from the weight of a human.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer has decreased since recent loading over the past few days, but the consequence of doing so would be high.
Assuming there's still snow available for transport, the windshould be building new wind slabs to the lee of the wind (north through east slopes) and in crossloaded features.
Pay attention to the pattern of wind-drifting in the terrain where you are traveling and watch for cracking or changes in snow stiffness.
Cornices weaken significantly when exposed to sun and warm temperatures. When they fail, they can have enough mass to be very destructive, and they can also trigger slab avalanches on the slopes below them.
In the north of the region, a weak layer of facets buried in mid-February is a lingering concern, primarily in areas where it separates wind-stiffened snow above and below. This snowpack structure is most suspect on northerly aspects at upper treeline elevations. Large triggers, such as an avalanche in motion, cornice fall, or intense loading from snow and wind could initiate this deeper layer. ","type":"unstyled","depth":0,"inlineStyl
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Variability in snowfall amounts and freezing levels over the weekend has complicated the distribution of storm slab problems in the region. Dial back terrain choices anywhere you find more than 20 cm of new snow.
Cornices are large and looming, and they may release naturally under the current conditions. Cornice falls can act as triggers on slopes below.
In the north of the region, a weak layer of facets buried in mid-February is a lingering concern, primarily in areas where it separates wind-stiffened snow above and below. This snowpack structure is most suspect on northerly aspects at upper treeline elevations. Large triggers, such as an avalanche in motion, cornice fall, or intense loading from snow and wind could initiate this deeper layer. ","type":"unstyled","depth":0,"inlineStyl
There is anywhere from 90 to 250 cm of snow above a persistent weak layer buried in mid-February. The concern now is mainly for storm slab avalanches stepping down to this deep layer, which would result in large, destructive avalanches.
Cornices are large and looming along many ridgelines. A warming trend and sunny skies will weaken cornices, increasing the likelihood of them releasing naturally or from the weight of a person.
Persistent slab avalanches remain possible in the northern tip of the Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
There are several persistent weak layers 50-150 cm. below the surface that have produced large natural and human triggered avalanches in the last week of February and first week of March. It may be too soon to write these layers off, as they could still be reactive to human triggers in isolated areas, especially on south-facing slopes when the sun is out.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces like moist or wet snow, snowballing or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cogp","text":"Large looming cornices may become weak with warming and solar radiation.
Around 100 to 200 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer may increase in the coming days as the forecast storm rapidly loads it.
Cornices are large and likely weakening with sun and significant daytime heating. Big cornice falls are a hazard on their own but can also trigger avalanches on the slopes below.
Cornices are large and looming along many ridgelines. Cornices may weaken during daytime heating, increasing the likelihood of triggering naturally or failing from the weight of a human.
Cornices are large and likely weakening with sun and significant daytime heating. Big cornice falls are a hazard on their own but can also trigger avalanches on the slopes below.
Two weak layers may exist between 30 and 100 cm deep. Widespread avalanche activity has already occurred on the layers, but they could still be triggered anywhere they haven't already failed. Look for signs of instability and continue treating the snowpack as suspect if you are uncertain whether the layer is still present in your riding area. The warm temperatures may increase the reactivity of these layers.
Naturally triggered wet loose avalanches are possible, especially on steep solar aspects in the alpine.
Two persistent weak layers exist in the snowpack that could be triggered by riders:","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"271l5","text":"The upper layer is buried 30 to 60 cm and primarily consists of weak faceted grains.","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"28fmc","text":"The deeper layer is buried 60 to 100 cm and consists of surface hoar, faceted grains, and/or a hard crust.","type":"unordered-list-item","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c2fn8","text":"The most likely areas to trigger these layers is where a hard wind slab exists above the layers and where the snowpack is not capped by a thick melt-freeze crust. Warm temperatures and solar input may increase the reactivity of these two layers.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Around 100 to 250 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer might stay elevated while the recent storm snow settles.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6i6iu","text":"Failing cornices may trigger avalanches on this layer on the slopes below and create very large avalanches.
Naturally triggered wet loose avalanches are possible, especially on steep solar aspects in the alpine.
Naturally triggered wet loose avalanches are possible, especially on steep solar aspects in the alpine.
Big warm ups can awaken dormant weak layers resulting in large avalanches. Steep, rocky, convex terrain with a shallow or thin to thick snowpack are examples of places where triggering these layers are more likely.
Warm temperature and periods of sunshine will increase the likelihood of triggering wet loose avalanches, particularly on solar aspects.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f83p2","text":"
Cornices are large and looming. A warming trend will weaken cornices, increasing the likelihood of them releasing naturally or from the weight of a person.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
A warming trend will likely weaken the snow surface, particularly on sun-exposed slopes. Avalanches are expected to mostly be small. The most likely areas to get into trouble would be on steep slopes above terrain traps.
Cornices are large and looming along many ridgelines. Progressive days of mild air temperature and periods of sunny skies are likely weakening cornices, increasing the likelihood of them releasing naturally or from the weight of a person.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Sunny breaks, warm temperatures and potential light rain may weaken the upper snowpack and form wet loose avalanches, especially if we don't get a good overnight re-freeze. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ehnm8","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Around 100 to 300 cm of snow may overly a persistent weak layer buried in mid-February. The likelihood of triggering the layer might stay elevated while the recent storm snow settles.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6i6iu","text":"Failing cornices may trigger avalanches on this layer on the slopes below and create very large avalanches.
Sunny breaks, warm temperatures and potential light rain may weaken the upper snowpack and form wet loose avalanches, especially if we don't get a good overnight re-freeze. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bvbs","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
The persistent slab problem appears to have been put to rest in deep snowpack areas in the west of the region, but on the eastern slopes (e.g. Kakwa/Tumbler Ridge) there have been very large recent natural avalanches. The rising freezing level this weekend may wake this problem up. The most likely triggers are surface avalanches stepping down, cornice fall, or the weight of a machine or a person hitting a thin-spot.
Consecutive days of warm temperatures may reactivate persistent weak layers from January and February. Widespread avalanche activity has already occurred on the layers, but they could still be triggered anywhere they haven't already failed. Look for signs of instability and continue treating the snowpack as suspect if you are uncertain whether the layer is still present in your riding area.
Consecutive days of warm temperatures may reactivate persistent weak layers from January and February. Widespread avalanche activity has already occurred on the layers, but they could still be triggered anywhere they haven't already failed. Look for signs of instability and continue treating the snowpack as suspect if you are uncertain whether the layer is still present in your riding area.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"85cla","text":"
Cornices may weaken when the sun is shining. Also use caution on steep, sun-exposed slopes during the heat of the day, as the recent snow may weaken and form loose wet avalanches.
Cornices are large and looming along many ridgelines. A warming trend and sunny skies will weaken cornices, increasing the likelihood of them releasing naturally or from the weight of a person.
Cornices may weaken when the sun is shining. Also use caution on sun-exposed slopes during the heat of the day.
Cornices may weaken when the sun is shining. Also use caution on steep, sun-exposed slopes during the heat of the day, as the recent snow may weaken and form loose wet avalanches.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during the heat of the day.
Lingering wind slabs may remain reactive to human triggers. Use caution when transitioning into wind affected terrain.
The persistent slab problem appears to have been put to rest in deep snowpack areas in the west of the region, but on the eastern slopes (e.g. Kakwa/Tumbler Ridge) there have been very large recent natural avalanches. The rising freezing levels last weekend combined with daytime warming this week may wake this problem up. The most likely triggers are surface avalanches stepping down, cornice fall, or the weight of a machine or a person hitting a thin-spot.
Cornices are large and looming along many ridgelines. They may be weakening with progressive days of relatively mild air temperature and sunny skies, increasing the likelihood of them releasing naturally or from the weight of a person.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are fragile due to rapid growth from recent snow and wind. Strong sun will further weaken them. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces while traveling like moist or wet snow, snowballing, or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cl5un","text":"This may only become a problem when the sun is out.
Slopes that face the sun will become unstable as they warm during the day, especially if they are steep.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces like moist or wet snow, snowballing or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cei80","text":"
unshine may trigger wet loose avalanches on steep solar aspects.
Cornices are large and will weaken with sun exposure and daytime heating. Big cornice falls are a hazard on their own but can also trigger avalanches on the slopes below.
Cornices are large and will weaken with sun and daytime heating. Big cornice falls are a hazard on their own but can also trigger avalanches on the slopes below.
Loose wet avalanches may occur during the heat of the day and primarily on solar aspects. Watch for changing snow surfaces like moist or wet snow, snowballing, or natural avalanche activity. Steep slopes and around rocks will be most susceptible to natural avalanche activity. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cogp","text":"
ornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
The persistent slab problem appears to have been put to rest in deep snowpack areas in the west of the region, but on the eastern slopes (e.g. Kakwa/Tumbler Ridge) there were large natural avalanches last week. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ejgkl","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cum2c","text":"Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger these persistent weak layers.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during periods of solar radiation.
Periods of sunshine breaking through the clouds could pack enough punch to increase the likelihood of cornice failures. The best way to mitigate the risk is to minimize your exposure, especially when solar radiation is strong.
Periods of sunshine breaking through the clouds could pack enough punch to increase the likelihood of cornice failures. Recently a cornice fall triggered a very- large slab avalanche from the slope below. These events are fairly unpredictable so the best way to mitigate the risk is to minimize your exposure, especially when solar radiation is strong.
Periods of sunshine breaking through the clouds could pack enough punch to increase the likelihood of cornice failures. Recently a cornice fall triggered a very large slab avalanche on the slope below. These events are fairly unpredictable so the best way to mitigate the risk is to minimize your exposure, especially when solar radiation is strong.
The persistent slab problem is most likely on the eastern slopes of the region (e.g., Kakwa, Tumbler Ridge) and in areas where the snowpack is thin. Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger buried weak layers. This problem likely won't go away until substantial melt-freeze cycling occurs.
Convective flurries and southwesterly winds on Sunday may have formed small wind slabs on lee features below alpine ridgetops.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during periods of solar radiation.
Periods of sunshine breaking through the clouds could pack enough punch to increase the likelihood of cornice failures. The best way to mitigate the risk is to minimize your exposure, especially when solar radiation is strong.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
The persistent slab problem appears to have been put to rest in deep snowpack areas in the west of the region, but on the eastern slopes (e.g. Kakwa/Tumbler Ridge) there were large natural avalanches last week. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ejgkl","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cum2c","text":"Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger these persistent weak layers. Large loads such a cornice falls or multiple sleds on the same slope often trigger slopes that single rider couldn't trigger.
Southwest winds and dribs and drabs of new snow may build thin wind slabs in lee terrain features. This problem may increase in sensitivity over the next few days as new snow and wind continue to build the slab.  Steep, convex slopes below alpine ridge tops are the most likely places to trigger these slabs. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"csei3","text":"If the sun pokes out it may have enough punch to initiate the recent snow as loose wet or dry avalanches from steep terrain features.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during intense periods of solar radiation. Cornice failures are very unpredicatble.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. They are most likely to fail during periods of solar radiation or loading from snow/wind.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. They are most likely to fail during periods of solar radiation or loading from snow/wind.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during periods of solar radiation or loading from snow/wind.
The persistent slab problem is most likely on the eastern slopes of the region (e.g., Kakwa, Tumbler Ridge) and in areas where the snowpack is thin. Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger buried weak layers. This problem likely won't go away until substantial snowpack warming occurs.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice.
A persistent weak layer of sugary facets continues to lurk deep in the snowpack. Three large avalanches (size 2-3) have failed on this interface in the past week. The first two occurred last weekend during an intense warm-up and the third was initiated by a cornice failure Wednesday near McBride. These avalanches were all reported from northeasterly slopes in the alpine. The persistent slab will likely need a large trigger, however, the weight of a person plus a machine might just be enough. This is a low probabilty but high consequence scenario and very hard to predict.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
New cornice development with touchy characteristics were observed on Sunday. Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. They are most likely to fail during periods of solar radiation or loading from snow/wind.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. They are most likely to fail during periods of solar radiation or loading from snow/wind.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during periods of solar radiation or loading from snow/wind.
Where cornices exist they pose a threat both from the potential to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice.
New cornice development with touchy characteristics were observed on Sunday. Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. They are most likely to fail during periods of solar radiation or loading from snow/wind.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during periods of solar radiation or loading from snow/wind.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. They are most likely to fail during periods of solar radiation or loading from snow/wind.
Rapidly growing cornices are large, looming and touchy.
40-60 cm of fresh snow accompanied by strong wind have formed new wind slabs in exposed lee terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"i745","text":"
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
The persistent slab problem is most likely on the eastern slopes of the region (e.g., Kakwa, Tumbler Ridge). Large natural avalanche activity was noted around a week ago. Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger buried weak layers. Large loads, such a cornice falls or multiple sleds on the same slope, often trigger slopes that a single rider couldn't.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
There is some uncertainty about lingering storm slabs into Wednesday's warm up. Moderate to strong westerly winds have been loading lee terrain, especially near ridge crests. Also watch for stiffer wind slabs in more exposed, open terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2sl0v","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2v7t3","text":"Sheltered terrain out of the wind will provide better quality riding.
The persistent slab problem is most likely on the eastern slopes of the region (e.g., Kakwa, Tumbler Ridge) and in areas where the snowpack is thin. Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger buried weak layers. This problem likely won't go away until substantial melt-freeze cycling occurs.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Watch for wind slabs as you transition into wind affected terrain. Westerly winds have been loading lee terrain, especially near ridge crests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"64ssl","text":"
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They require respect and a large berth if you're travelling above or below.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Moderate to strong westerly winds have been loading lee terrain, especially near ridge crests. Also watch for stiffer wind slabs in more exposed, open terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"aaun5","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2v789","text":"Sheltered terrain out of the wind will provide better quality riding.
Cornices are likely fragile due to rapid growth with recent snow and wind.
ornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They require a large berth from above and below.
Cornices are fragile due to rapid growth from recent snow and wind. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are fragile due to rapid growth from recent snow and wind. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are likely fragile due to rapid growth with recent snow and wind.
Cornices are likely fragile due to rapid growth with recent snow and wind.
ind slabs may linger at high elevations, particularly in the central and northern part of the region where the most snow accumulated on Saturday. Carefully assess for wind slabs in steep, committing terrain features.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2mmq","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7qd8u","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. Direct sun can weaken cornices significantly.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They require a large berth from above and below.
Cornices are fragile due to rapid growth from recent snow and wind. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are fragile due to rapid growth from recent snow and wind. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gvpb","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
Wind slabs from snow earlier in the week accompanied by strong wind exposed lee terrain may still linger in high elevation terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"i745","text":"
Cornices are likely fragile due to rapid growth with recent snow and wind.
Cornices are likely fragile due to rapid growth with recent snow and wind.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gvpb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8q1lj","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
The spring sun can pack a punch quickly and initiate loose wet avalanches. Watch for signs of instability like natural avalanche activity, wet or moist snow surfaces, and snowballing, especially on solar aspects.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. Direct sun can weaken cornices significantly.
oose dry avalanches in steep terrain should be on your radar as they can run a long way and entrain snow as they go. These can be especially dangerous around terrain traps like cliffs, trees, gullies and roads.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"69us3","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dm0ne","text":"You might also find loose moist avalanches on solar slopes and below treeline. Loose avalanches of both types can also trigger storm slabs.
Loose dry avalanches in steep terrain should be on your radar as they can run a long way and entrain snow as they go. These can be especially dangerous around terrain traps like cliffs, trees, gullies and roads.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fe8lg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dd39h","text":"You might also find loose moist avalanches on solar slopes. Loose avalanches of both types can also trigger slabs.
Cornices are likely fragile due to rapid growth with recent snow and wind.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2mmq","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7qd8u","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
Cornices are likely fragile due to rapid growth with recent snow and wind.
ornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They require a large berth from above and below.
Cornices are likely fragile due to rapid growth with recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They require a large berth from above and below.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They require respect and a large berth if you're travelling above or below.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They require a large berth from above and below. Direct sun and rising freezing levels can weaken cornices significantly.
The spring sun combined with rising freezing levels can pack a punch quickly and initiate loose wet avalanches. Watch for signs of instability like natural avalanche activity, wet or moist snow surfaces, and snowballing, especially on solar aspects.
Wind slabs will be most likely be isolated to immediate lees of ridgecrests and roll-overs in wind exposed alpine terrain.
Moderate to strong westerly winds have been loading lee terrain, especially near ridge crests. Also watch for stiffer wind slabs in more exposed, open terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"aaun5","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2v789","text":"Sheltered terrain out of the wind will provide better quality riding.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Wind slabs will be most likely be isolated to immediate lees of ridgecrests and roll-overs in wind exposed alpine terrain.
The persistent slab problem is most likely on the eastern slopes of the region (e.g., Kakwa, Tumbler Ridge) and in areas where the snowpack is thin. Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger buried weak layers. This problem likely won't go away until substantial melt-freeze cycling occurs.
Cornices are fragile due to rapid growth from recent snow and wind. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are fragile due to rapid growth from recent snow and wind. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are fragile due to rapid growth from recent snow and wind. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are fragile due to rapid growth from recent snow and wind. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
ry loose avalanches will be very likely on steep south facing slopes at upper elevations when the sun comes out in the afternoon.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"skvh","text":"Wet loose avalanches are possible below treeline.
Wind slabs will be most likely be isolated to immediate lees of ridgecrests and roll-overs in wind exposed alpine terrain.
Cornices are fragile due to rapid growth from recent snow and wind. Strong sun will further weaken them. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are fragile due to rapid growth from recent snow and wind. Strong sun will further weaken them. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Small wind slabs may lurk on lee features below alpine ridgetops, formed by recent southwesterly winds.
The persistent slab problem is most likely on the eastern slopes of the region (e.g., Kakwa, Tumbler Ridge) and in areas where the snowpack is thin. Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger buried weak layers. This problem likely won't go away until a substantial melt-freeze cycling occurs.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
ornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They are capable of triggering very large avalanches when they fail.
Cornices are large and looming along many ridgelines, and have likely grown with the recent wind. They are capable of triggering large avalanches when they fail.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous on their own and they can also trigger slabs on slopes below.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below. Their large mass can trigger deeper slabs on buried crusts  in the upper snowpack that a single rider wouldn't trigger on their own.
Wind slabs will be most likely be isolated to immediate lees of ridgecrests and roll-overs in wind exposed alpine terrain.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below. Their large mass can trigger deeper slabs on buried crusts  in the upper snowpack that a single rider wouldn't trigger on their own.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines, and have likely grown with the recent wind. They are capable of triggering large avalanches when they fail.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Cornices are large and looming along many ridgelines. They become increasingly unstable during periods of warming.
Wind slabs will be most likely be isolated to immediate lees of ridgecrests and roll-overs in wind exposed alpine terrain.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Cornices become weak with daytime warming. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below. Their large mass can trigger deeper slabs on buried crusts  in the upper snowpack that a single rider wouldn't trigger on their own.
Cornices are large and looming along many ridgelines, and have likely grown with the recent wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out and freezing levels rise. They require a large berth when travelling above and below them.
Wind slabs will be most likely be isolated to immediate lees of ridgecrests and roll-overs in wind exposed alpine terrain.
Cornices are especially fragile this time of year. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines, and have likely formed fragile new growth with recent snow and wind. They grow increasingly unstable during periods of warming.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
ornices are large and looming along many ridgelines and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They require a large berth when travelling above and below them.
et loose avalanches may occur on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
Cornices are especially fragile this time of year. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines and have likely grown with the recent snow and wind.
ight accumulations of new snow could lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Surface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
urface snow will tend to lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Surface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
urface snow will lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"61th5","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"frj0g","text":"Strong solar radiation and warming are common triggers for cornice failures which could trigger large avalanches.
Small wind slabs may lurk on lee features below alpine ridgetops, formed by recent winds from the southwest.
Cornices are especially fragile this time of year. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are especially fragile this time of year. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines, and are likely to continue to grow during Wednesday's storm.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous on their own and they can also trigger slabs on slopes below.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines, and have likely grown with recent fresh snow and wind.
Cornices are large and looming along many ridgelines and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
ornices are large and looming along many ridgelines and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5ei44","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cj558","text":"Strong solar radiation and warming are common triggers for cornice failures which could trigger large avalanches.
ornices are large and looming along many ridgelines and have likely grown with the recent wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gdjf","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2qpdf","text":"Strong solar radiation and warming are common triggers for cornice failures which could trigger large avalanches.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bnis","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c6nkn","text":"Strong solar radiation and warming are common triggers for cornice failures which could trigger large avalanches.
Cornices are large and will weaken with daytime warming. Stay well back from them on ridges and avoid travelling beneath them. A cornice fall has the potential of triggering slabs on the slopes below.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Cornices are especially fragile this time of year. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with recent fresh snow and wind.
ornices are large and looming along many ridgelines and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind.
Dry loose avalanches can be expected in the new snow on steep slopes and terrain features, especially upon seeing the sun for the first time. Where recent snow sits over a crust, they can run surprisingly far and fast while gathering mass.
Wind slabs in lee terrain may still react to human triggers.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous on their own and they can also trigger slabs on slopes below.
Cornices are large and looming along many ridgelines and will have formed fragile new growth with the recent snow and wind. They become increasingly unstable during periods of warming.
Lingering pockets of wind slab may exist in immediate lees of ridge crests and roll-overs at upper elevations. They may remain sensitive to triggering especially where they sit over a crust.
Cornices are large and looming along many ridgelines. They grow increasingly unstable during periods of warming.
Dry loose avalanches can be expected in the new snow on steep slopes and terrain features, especially upon seeing the sun for the first time. Where recent snow sits over a crust, they can run surprisingly far and fast while gathering mass.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous on their own and they can also trigger slabs on slopes below.
Strong solar radiation and warming may trigger the large cornices that hang over ridgelines.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous on their own and they can also trigger slabs on slopes below.
Lingering pockets of wind slab may be triggerable in unsupported terrain features.
Cornices are large and looming along many ridgelines, and have grown with recent fresh snow and wind. They become increasingly unstable during periods of warming.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous on their own and they can also trigger slabs on slopes below.
Cornices are often fragile this time of year, especially when the sun is out. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
ornices are large and looming along many ridgelines and have likely grown with the recent wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gdjf","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2qpdf","text":"Strong solar radiation and warming are common triggers for cornice failures which could trigger large avalanches.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Loose-dry avalanches can be expected in the new snow on steep slopes and terrain features. They can surprisingly run far and fast while gathering mass, especially where they sit on a crust.
trong solar radiation and warming will likely trigger the large cornices that hang over ridgelines.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Loose-dry avalanches can be expected in the new snow on steep slopes and terrain features. They can surprisingly run far and fast while gathering mass, especilly where they sit on a crust.
ry loose avalanches can be expected in the new snow on steep slopes and terrain features. They can surprisingly run far and fast while gathering mass, especially where they sit on a crust.
ry loose avalanches can be expected in the new snow on steep slopes, especially if the sun comes out. Where recent snow sits over a crust, loose snow avalanches can run surprisingly far and fast while gathering mass.
Cornices are large and looming along many ridgelines and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines and will have formed fragile new growth with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with recent fresh snow and wind.
Cornices are large and looming along many ridgelines, and have likely formed fragile new growth with recent snow and wind.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"bnis","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c6nkn","text":"Strong solar radiation and warming are common triggers for cornice failures which could trigger large avalanches.
Cornices are large and looming along many ridgelines, and have grown with recent fresh snow and wind. They become increasingly unstable during periods of warming.
ry loose avalanches may be possible on steep slopes in the unconsolidated new snow.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
ornices are large and looming along many ridgelines and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"61th5","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"frj0g","text":"Strong solar radiation and warming are common triggers for cornice failures which could trigger large avalanches.
Cornices are large and looming along many ridgelines and have likely grown with the recent wind. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5ei44","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cj558","text":"Strong solar radiation and warming are common triggers for cornice failures which could trigger large avalanches.
Small wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
Strong solar radiation and warming may trigger the large cornices that hang over ridgelines.
Cornices are large and looming along many ridgelines and will have formed fragile new growth with the recent snow and wind. They become increasingly unstable during periods of warming.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Strong solar radiation and warming may trigger the large cornices that hang over ridgelines.
The snow surface will weaken over the course of the day as warm air and sunny skies prevail. The most likely areas to get into trouble are above terrain traps.
urface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Avoid exposing yourself to sunny slopes, especially in the afternoon.
urface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Avoid exposing yourself to sunny slopes, especially in the afternoon.
Surface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Avoid exposing yourself to sunny slopes, especially in the afternoon.
Surface snow can quickly lose cohesion and become unstable with strong solar radiation and warm temperatures. Avoid exposing yourself to sunny slopes, especially in the afternoon.
ornices are at their largest at this time of year, and become weaker with warm temperatures and solar radiation.
Cornices are large and looming along many ridgelines. They grow increasingly unstable during periods of warming.
Cornices are large and looming along many ridgelines. They become increasingly unstable during periods of warming.
Strong solar radiation and warming may trigger the large cornices that hang over ridgelines.
Watch for pockets of unstable snow in steep alpine terrain.
trong solar radiation and warming will likely trigger the large cornices that hang over ridgelines. Cornice falls could trigger wind slab avalanches on the slopes below.
Cornices are large and looming along many ridgelines. They will become weak with daytime heating and could trigger avalanches on the slopes below.
trong solar radiation and warming will likely trigger the large cornices that hang over ridgelines. Cornice falls could trigger large avalanches on the slopes below.
Cornices are large and fragile. Warm temperatures and sun exposure will lead to cornice falls. Many natural cornice failures were reported recently. Cornice falls are dangerous on their own and they can trigger slabs on slopes below. There is a chance that the heavy load of a failed cornice triggers deep persistent slabs. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4qhqo","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ecd18","text":"Cornices often break further back than expected. Give them a wide berth when travelling on ridgetops. Avoid slopes with cornices overhead, especially if they are exposed to the sun and during the heat of the day. Take into account long runout distances when travelling underneath slopes with cornices overhead.
Strong solar radiation and warming will likely trigger the large cornices that hang over ridgelines. Cornice falls could trigger large avalanches on the slopes below.
Cornices are large and looming along many ridgelines. They become increasingly unstable during periods of warming.
Cornices are large and fragile. Warm temperatures and sun exposure will lead to cornice falls. Cornice falls are dangerous on their own and they can trigger slabs on slopes below. There is a chance that the heavy load of a failed cornice triggers deep persistent slabs. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7u60a","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"46mu0","text":"Cornices often break further back than expected. Give them a wide berth when travelling on ridgetops. Avoid slopes with cornices overhead, especially if they are exposed to the sun and during the heat of the day. Take into account long runout distances when travelling underneath slopes with cornices overhead.
Cornices are large and fragile. Warm temperatures and sun exposure will lead to cornice falls. Many natural cornice failures were reported recently. Cornice falls are dangerous on their own and they can trigger slabs on slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"75al3","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"a9cng","text":"Cornices often break further back than expected. Give them a wide berth when travelling on ridgetops. Avoid slopes with cornices overhead, especially if they are exposed to the sun and during the heat of the day. Take into account long runout distances when travelling underneath slopes with cornices overhead.
Cornices are large and fragile. Warm temperatures and sun exposure will lead to cornice falls. Many natural cornice failures were reported recently. Cornice falls are dangerous on their own and they can trigger slabs on slopes below. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"56i4l","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8ui8n","text":"Cornices often break further back than expected. Give them a wide berth when travelling on ridgetops. Avoid slopes with cornices overhead, especially if they are exposed to the sun and during the heat of the day. Take into account long runout distances when travelling underneath slopes with cornices overhead.
ornices are at their largest at this time of year, and become weaker with warm temperatures and solar radiation.
Cornices are large and looming along many ridgelines. They grow increasingly unstable during periods of warming.
Cornices are large and looming along many ridgelines. They become increasingly unstable during periods of warming.
Strong solar radiation and warming may trigger the large cornices that hang over ridgelines.
A crust exists near the base of the snowpack. A lack of decisive data on this layer is keeping it on our radar for now. While it's been showing results in snowpack tests in some areas, most reports describe an improving bond to the overlying snow. Potential for full depth avalanches may exist in areas where weak, sugary facets overly this crust, especially in areas of smooth ground cover such as scree slopes, grassy slopes, or rock slabs.
Continued warm temperatures may release loose wet avalanches. Pinwheeling is a good indicator of this type of instability. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":83,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=pinwheel#signs-of-instabilit
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1opns","text":"10 cm of new snow and moderate northwest winds on Monday formed small wind slabs on lee features at treeline and above.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ffgev","text":"10 cm of new snow and moderate northwest winds formed small wind slabs on lee features at treeline and above.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c7ai3","text":"Lingering wind slabs may remain surprisingly reactive to human triggers in areas where they are sitting on top of a layer of small surface hoar.
Lingering wind slabs may remain surprisingly reactive to human triggers in areas where they are sitting on top of a layer of small surface hoar.
A crust exists near the base of the snowpack. A lack of decisive data on this layer is keeping it on our radar for now. While it's been showing results in snowpack tests in some areas, most reports describe an improving bond to the overlying snow. Potential for full depth avalanches may exist in areas where weak, sugary facets overly this crust, especially in areas of smooth ground cover such as scree slopes, grassy slopes, or rock slabs.
A rapidly warming snow surface may release loose wet avalanches. Pinwheeling is a good indicator of this type of instability.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":86,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutabilit
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9snuv","text":"Things are looking HOT up high for the next couple days. Naturally triggered wet loose avalanches are possible on all aspects and especially likely on solar aspects. Overhead hazards will be a primary concern.
Wednesday marks the first day that the cold storm snow will feel both above freezing temperatures and direct sun.  Loose wet avalanche activity is expected to be widespread.
Continued warm temperatures may release loose wet avalanches. Pinwheeling is a good indicator of this type of instability. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":83,"length":10,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=pinwheel#signs-of-instabilit
We have very little information about the prevalence of this crust in the region, but, the coming warm temperatures are combining with direct sunshine. This is combo that could easily lead to cornice failure and natural triggering of very large persistent slab avalanches running on the November crust.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c7ai3","text":"Lingering wind slabs may remain surprisingly reactive to human triggers in areas where they are sitting on top of a layer of small surface hoar.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ffgev","text":"10 cm of new snow and moderate northwest winds formed small wind slabs on lee features at treeline and above.
","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"1opns","text":"10 cm of new snow and moderate northwest winds on Monday formed small wind slabs on lee features at treeline and above.
If the sun pokes out and alpine temperatures are above freezing wet loose avalanches may occur.
Recent strong southerly winds have likely redistributed snow at upper elevations, building new wind slabs on leeward northerly facing terrain. The warm air coupled with solar radiation from Wednesday may have promoted rapid settlement and accelerated slab development in the upper snowpack on other aspects and elevations. Be especially cautious where new snow may sit over a crust (south aspects) or surface hoar (wind-sheltered areas around treeline).","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":218,"length":49,"key":0}],"data":{}}],"entityMap":{"0":{"type":"LINK",
Lingering wind slabs may remain surprisingly reactive to human triggers in areas where they are sitting on top of a layer of small surface hoar.
Recent wind from south to southwest has likely formed fresh wind slab at upper elevations in the immediate leeward side of slopes and terrain features.
Southwest winds have drifted snow into slabs on lee features that may be possible to trigger at upper elevations. Avoid steep, rocky, or convex features near ridge crests where triggering is possible.
There is currently 90-120 cm of snow sitting on top of weak a layer of sugary facets that developed above crust which formed in early November. Warm temperatures may increase the likelihood triggering deep persistent slabs.
Intense periods of precipitation have the potential to bring buried weak layers to their breaking point. A layer of buried surface hoar and facets that formed in late November and a widespread facet/crust layer from early November have the potential to become sliding surfaces with the stress of the new snow and rain. Easy-to-trigger wet loose or storm slab avalanches have the potential to step-down to these deeper layers and produce large, destructive avalanches.
A crust exists near the base of the snowpack. We have a lack of decisive data on this layer so we're keeping it on our radar for now. While it's been showing some results in snowpack tests in some areas, most reports describe an improving bond to the overlying snow. Potential for full depth avalanches may exist in areas where weak, sugary facets overly this crust, especially in areas of smooth ground cover such as scree slopes, grassy slopes, or rock slabs.
There is currently 90-120 cm of snow sitting on top of weak a layer of sugary facets that developed above a crust which formed in early November. It is most likely to be reactive to human triggers on south facing slopes and on steep, shallow, rocky, snowpack areas in the alpine.
In the north of the region (e.g., Duffey Lake), a weak layer of sugary faceted grains around a hard melt-freeze crust sits near the base of the snowpack. Be wary of overhead hazards, a large impact (like a cornice failure - see avalanche summary) could trigger the slope below. There is a lot of uncertainty on the reactivity of this layer - we're keeping it on our radar because we don't have enough information. And if this layer is triggered, it will likely produce large avalanches. This problem does not exist in the south of the region.
Intense periods of precipitation have the potential to bring buried weak layers to their breaking point. A layer of buried surface hoar and facets that formed in late November and a widespread facet/crust layer from early November have the potential to become sliding surfaces with the stress of the new snow and rain. Easy-to-trigger wet loose or storm slab avalanches have the potential to step-down to these deeper layers and produce large, destructive avalanches.
In the north of the region (e.g., Duffey Lake), a weak layer of sugary faceted grains around a hard melt-freeze crust sits near the base of the snowpack. There is a lot of uncertainty on the reactivity of this layer - we're keeping it on our radar because we don't have enough information. Be wary of overhead hazards, a large impact (like a cornice failure - see avalanche summary) could trigger the slope below. Keep in mind if this layer is triggered, it will likely produce large avalanches. This problem does not exist in the south of the region.
In the north of the region (e.g., Duffey Lake), a weak layer of sugary faceted grains around a hard melt-freeze crust sits near the base of the snowpack. There is a lot of uncertainty on the reactivity of this layer - we're keeping it on our radar because we don't have enough information. Be wary of overhead hazards, a large impact (like a cornice failure - see avalanche summary) could trigger the slope below. Keep in mind if this layer is triggered, it will likely produce large avalanches. This problem does not exist in the south of the region.
A crust buried near the bottom of the snowpack has been responsible for a few large avalanches in the past week.
Basal facets have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":0},{"offset":209,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"1":{"type":"LINK","mutabilit
ingering wind slabs may remain reactive to human triggers on a wide range of aspects.
The base of the snowpack has been reported as being composed of weak and sugary faceted grains for much of the region. The most likely area to trigger it would be on slopes where the snowpack is thin, such as near rocky outcrops.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
Basal facets have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":0},{"offset":209,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"1":{"type":"LINK","mutabilit
Basal facets have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":0},{"offset":209,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"1":{"type":"LINK","mutabilit
Basal facets have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches or cornice collapse may also have the potential of stepping down to this layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":0},{"offset":229,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"1":{"type":"LINK","mutabilit
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
The base of the snowpack has been reported as being composed of weak and sugary faceted grains for much of the region. The most likely area to trigger this deep weak layer would be on slopes where the snowpack is thin or transitions quickly from thin to thick, such as near rocky outcrops.
Basal facets have the potential of forming large and destructive avalanches and continues to show up in test pits as reactive. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches or cornice collapse may also have the potential of stepping down to this layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":0},{"offset":279,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"1":{"type":"LINK","mutabilit
Basal facets have the potential of forming large and destructive avalanches and continues to show up in test pits as reactive. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches or cornice collapse may also have the potential of stepping down to this layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":0},{"offset":279,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"1":{"type":"LINK","mutabilit
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
ingering wind slabs may remain reactive to human triggers on a variety of aspects.
Basal facets have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":0},{"offset":209,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"1":{"type":"LINK","mutabilit
Basal facets have the potential of forming large and destructive avalanches. The most likely place to trigger this layer would be on shallow and rocky slopes. Smaller avalanches may also have the potential of stepping down to this layer. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":0,"length":12,"key":0},{"offset":209,"length":13,"key":1}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=basal+facets"}},"1":{"type":"LINK","mutabilit
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
The base of the snowpack has been reported as being composed of weak and sugary faceted grains for much of the region. The most likely area to trigger it would be on slopes where the snowpack is thin, such as near rocky outcrops.
The base of the snowpack has been reported as being composed of weak and sugary faceted grains for much of the region. The most likely area to trigger it would be on slopes where the snowpack is thin, such as near rocky outcrops.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
The base of the snowpack has been reported as being composed of weak and sugary faceted grains for much of the region. The most likely area to trigger this deep weak layer would be on slopes where the snowpack is thin or transitions quickly from thin to thick, such as near rocky outcrops.
There are a few different persistent weak layers being reported throughout the region. They are all generally buried between 100-200 cm and tend to consist of either surface hoar or crusts with faceted snow sitting on them.
A crust buried near the bottom of the snowpack has been responsible for at least one large avalanches in the past week.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A Crust buried near the bottom of the snowpack has been responsible for some very large explosive triggered avalanches up to size 4.
A crust buried near the bottom of the snowpack has been responsible for at least one large avalanches in the past week.
A crust buried near the bottom of the snowpack has been responsible for a few large avalanches in the past week.
Small wet loose avalanches or cornice falls may trigger deeper weak layers, resulting in large avalanches.
Small wet loose avalanches or cornice falls may trigger deeper weak layers, resulting in large avalanches.
A crust buried near the bottom of the snowpack has been responsible for at least one large avalanches in the past week.
A crust buried near the bottom of the snowpack has been responsible for at least one large avalanches in the past week.
Two crusts with weak faceted grains overtop are buried deep within the snowpack. The upper layer is 80 to 130 cm deep and the lower is near the ground. A few large avalanches have run naturally on these layers recently. The likelihood of triggering these layers is low but the consequence of doing is high.
Triggering large avalanches on weaknesses in the lower snowpack remains a possibility. In some areas the concern is weak snow around crusts 70-100 cm deep, while in others it is weak snow near the bottom of the snowpack. Human triggering of these layers are most likely in steep, rocky slopes with a shallow or thin to thick snowpack.
Previous wind has deposited recent snow into deeper slabs on leeward slopes at upper elevations. It remains a possibility for isolated wind slabs to react to human triggers.
We've been tracking a few different persistent weak layers in the snowpack. They are all generally buried between 100-200 cm and tend to consist of either surface hoar or crusts with faceted snow sitting on them. Recent storms and snow added a huge load and tested these layers deeper in the snowpack. Moving forward the mid-pack is generally well settled and these layers are becoming quite stubborn to human trigger and likely trending to dormancy, however still pose the \"low probability, high consequence\" scenario.
There are a few different persistent weak layers being reported throughout the region. They are all generally buried between 100-200 cm and tend to consist of either surface hoar or crusts with faceted snow sitting on them.
There are a few different persistent weak layers being reported throughout the region. They are all generally buried between 100-200 cm and tend to consist of either surface hoar or crusts with faceted snow sitting on them.
Shifting wind has deposited snow into deeper slabs on leeward slopes. This problem can be managed by navigating around wind affected slopes, but keep in mind this is not the only problem in the snowpack right now.
A crust buried near the bottom of the snowpack has been responsible for at least one large avalanches in the past week.
Two crusts with weak faceted grains overtop are buried deep within the snowpack. The upper layer is 80 to 130 cm deep and the lower is near the ground. A few large avalanches have run naturally on these layers recently. This problem is most prominent in thinner snowpack areas in the west of the region.
Cornices have grown large, saggy and fragile. A few recent cornice falls have triggered avalanches on the slopes below. Many that haven't fallen are showing pull-away cracks.
Two crusts with weak faceted grains overtop are buried deep within the snowpack. The upper layer is 80 to 130 cm deep and the lower is near the ground. A few large avalanches have run naturally on these layers recently. This problem is most prominent in thinner snowpack areas in the west of the region.
Recent snow and extreme winds have formed large and fragile cornices that could trigger large avalanches when they fail. Avoid traveling under cornices during periods of intense sunshine.
A persistent slab problem exists throughout the region. 30-80 cm sits on a buried weak layer that consists of facets, surface hoar, or a crust, depending on location. Avalanche activity has been limited, but we are wary of smaller wind or storm slab avalanches stepping down to this layer.","type":"unstyled","depth":0,"inlineSt
New wind slabs may exist in leeward terrain features at upper elevations. Continuing light flurries and intermittently elevated winds should keep this problem reactive (but small) in the coming days.
Wet loose avalanches are likely when the sun pokes out and freezing levels rise. Be observant as you travel, and look for signs of warming and snowpack instability. Snowballing, moist snow, and the most obvious is natural avalanche activity. Back off slopes and adjust your trip plan when things are heating up.
Wet loose avalanches are likely as the sun pokes out and freezing levels rise. Be observant as you travel, and look for signs of warming and snowpack instability. Snowballing, moist snow, and the most obvious is natural avalanche activity. Back off slopes and adjust your trip plan when things are heating up.
Wet loose avalanche activity is most likely above around 1200 m, as the recent snow moistens from daytime warming. Use caution on sun-exposed slopes during the heat of the day.
Wet loose avalanches are likely when the sun pokes out and freezing levels rise. Be observant as you travel, and look for signs of warming and snowpack instability. Snowballing, moist snow, and the most obvious is natural avalanche activity. Back off slopes and adjust your trip plan when things are heating up.
Persistent slab avalanches are most likely in the northern Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts (see Avalanche Summary).
Wet loose avalanches may occur at all elevations but be more predominant at treeline and below due to fluctuating freezing levels. Obvious signs are natural avalanches, snowballing, moist, and sticky snow surfaces. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7lan","text":"Large, looming cornices exist along ridgelines. They may become weak and fail during periods of warming on Thursday.
Wind slabs are expected to be reactive in lee terrain with ongoing moderate to strong southerly wind. Previous variable wind direction means that wind slabs may be found on all aspects, but the most reactive ones will be found on northerly aspects.
Persistent slab avalanches are most likely in the northern Purcells where there has been recent avalanche activity on a 40-80 cm deep layer of surface hoar, facets, and/or crusts.
Warming temperatures could temporarily increase the likelihood of large persistent slab avalanches. There are two potential layers of concern buried 60-120 cm deep across the region that have produced some sporadic activity over the past weeks.
Warming temperatures could temporarily increase the likelihood of large persistent slab avalanches. There are two potential layers of concern buried 60-120 cm deep across the region that have produced some sporadic activity over the past weeks.
Wet loose avalanches are likely as the sun pokes out and freezing levels rise. Be observant as you travel, and look for signs of warming and snowpack instability. Snowballing, moist snow, and the most obvious is natural avalanche activity. Back off slopes and adjust your trip plan when things are heating up.
Older wind slabs exist on a variety of aspects and may remain reactive where they sit over a thin layer of facets on a hard bed surface.
Older wind slabs exist on a variety of aspects and may remain reactive where they sit over a thin layer of facets on a hard bed surface.
Wet loose avalanches are likely when the sun comes out and freezing levels rise. Watch for signs of warming and snowpack instability such as rolling snowballs, moist snow and natural avalanche activity.
Wet loose avalanches are likely as the sun comes out and freezing levels rise. Watch for signs of warming and snowpack instability such as rolling snowballs, moist snow, and natural avalanche activity.
Warming temperatures could temporarily increase the likelihood of large persistent slab avalanches. There are two potential layers of concern buried 60-120 cm deep across the region that have produced some sporadic activity over the past weeks.
This problem can be found in the north of the region in areas around Pine Pass where up to 35 cm of new snow fell accompanied by strong wind by Saturday morning. Wind slabs may be resting on a sun crust on solar aspects which could allow avalanches failing to run further and faster than you'd normally expect.
A wet loose avalanche problem may exist in the south of the region, where freezing levels are expected to remain above 2000 m overnight and into midday on Friday. ","type":"unstyled","depth":0,"inlineStyle
Wet loose avalanches may still be possible on Saturday. The cooling trend is expected to be slow, with above freezing temperatures persisting for much of the day. Watch for signs of warming and snowpack instability such as rolling snowballs, moist snow and natural avalanche activity.
Wet loose avalanches may still be possible on Saturday. The cooling trend is expected to be slow, with above freezing temperatures persisting for much of the day. Watch for signs of warming and snowpack instability such as rolling snowballs, moist snow and natural avalanche activity.
Solar input and warm temperatures may weaken the upper snowpack and form wet loose avalanches. These avalanches will most likely occur on steep solar slopes and around rock outcrops. The likelihood for wet loose avalanches will increase with daytime heating. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ej8s3","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during the heat of the day.
The persistent slab problem appears to have been put to rest in deep snowpack areas in the west of the region, but on the eastern slopes (e.g. Kakwa/Tumbler Ridge) there have been very large recent natural avalanches. The rising freezing level this weekend may wake this problem up. The most likely triggers are surface avalanches stepping down, cornice fall, or the weight of a machine or a person hitting a thin-spot.
Naturally triggered wet loose avalanches are likely, especially on steep solar aspects in the alpine.
Recent convective flurries in parts of the region, solar radiation, and light to moderate winds may have formed reactive slabs in isolated alpine locations. Steep, convex slopes below alpine ridgetops are the most likely places to trigger these slabs.
Recent convective flurries in parts of the region, solar radiation, and light to moderate winds may have formed reactive slabs in isolated alpine locations. Steep, convex slopes below alpine ridgetops are the most likely places to trigger these slabs.
Wet loose avalanches may release naturally on low elevation or steep sun-exposed slopes. A wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off.
Recent convective flurries in parts of the region, solar radiation, and light to moderate winds may have formed reactive slabs in isolated alpine locations. Steep, convex slopes below alpine ridgetops are the most likely places to trigger these slabs.
Wet loose avalanches may release naturally on low elevation or steep sun-exposed slopes. A wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off.
A warming trend will likely weaken the snow surface, particularly on sun-exposed slopes midday. The most likely areas to get into trouble would be on steep slopes above terrain traps.
Wet loose avalanches may release naturally on low elevation or steep sun-exposed slopes. A wet snow surface, pinwheeling or loose wet point releases out of the rocks are good indicators that it is time to back off.
Pay attention to the pattern of wind-drifting in the terrain where you are traveling and watch for cracking or changes in snow stiffness. Wind slabs are expected to be most prevalent in the north of the region.","type":"unstyled","depth":0,"inlineSty
Recent snowfall has blanketed the terrain with a widespread storm slab problem. Monitor for the reactivity of the new snow and old snow interfaces and for density changes within the new snow where you travel.
Wet loose avalanche activity is most likely at higher elevations, as the recent snow moistens from daytime warming. Use caution on steep sun-exposed slopes during the heat of the day.
Solar input and warm temperatures may weaken the upper snowpack and form wet loose avalanches. These avalanches will most likely occur on steep solar slopes and around rock outcrops. The likelihood for wet loose avalanches will increase with daytime heating. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ehnm8","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Solar input and warm temperatures may weaken the upper snowpack and form wet loose avalanches. These avalanches will most likely occur on steep solar slopes and around rock outcrops. The likelihood for wet loose avalanches will increase with daytime heating. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ehnm8","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Solar input and warm temperatures may weaken the upper snowpack and form wet loose avalanches. These avalanches will most likely occur on steep solar slopes and around rock outcrops. The likelihood for wet loose avalanches will increase with daytime heating. Pinwheeling and a moist snow surface are signs that the stability of the upper snowpack is decreasing. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ej8s3","text":"Even small avalanches can be a hazard in high consequence terrain and above terrain traps.
Recent convective flurries in parts of the region, solar radiation, and light to moderate winds may have formed reactive slabs in isolated alpine locations. Steep, convex slopes below alpine ridgetops are the most likely places to trigger these slabs.
Wet loose avalanche activity is only likely when a moist or wet snow surface is found. Resulting avalanches are expected to be small, but use particular caution on very steep slopes with high consequence. If a hard melt-freeze crust persists, the likelihood of avalanche activity is low.
Recent convective flurries in parts of the region, solar radiation, and light to moderate winds may have formed reactive slabs in isolated alpine locations. Steep, convex slopes below alpine ridgetops are the most likely places to trigger these slabs.
Recent convective flurries in parts of the region, solar radiation, and light to moderate winds may have formed reactive slabs in isolated alpine locations. Steep, convex slopes below alpine ridgetops are the most likely places to trigger these slabs.
Naturally triggered wet loose avalanches are possible; especially on steep solar aspects in the alpine.
Persistent weak layers that were buried in January and February could reactivate during this relatively warm period. Assess for these layers and look for clues of instability.
ind slabs may linger at high elevations, particularly in the central and northern part of the region where the most snow accumulated on Saturday. Carefully assess for wind slabs in steep, committing terrain features.
Wet loose avalanche activity is possible if sunny skies prevail. Use caution on steep, sun-exposed slopes during the heat of the day. The problem is likely most prevalent in the north of the region where more snow accumulated.
Cornices are large and likely weakening with sustained elevated freezing levels and significant daytime heating. Big cornice falls are a hazard on their own but can also trigger large persistent slab avalanches on the slopes below.
Cornices are large and likely weakening with sustained elevated freezing levels and significant daytime heating. Big cornice falls are a hazard on their own but can also trigger large persistent slab avalanches on the slopes below.
This problem can be found in the north of the region in areas around Pine Pass where up to 35 cm of new snow fell as of Saturday morning.  This snow may be resting on a sun crust on solar aspects which will allow avalanches failing in the storm snow to run further and faster than you'd normally expect.
Cornices are large and likely weakening with sun and significant daytime heating. Big cornice falls are a hazard on their own but can also trigger large persistent slab avalanches on the slopes below.
Cornices are large and likely weakening with sun and significant daytime heating. Big cornice falls are a hazard on their own but can also trigger large persistent slab avalanches on the slopes below.
Wet loose avalanche activity is most likely at higher elevations, as the recent snow moistens from daytime warming. Use caution on steep sun-exposed slopes during the heat of the day. The problem is likely most prevalent in the north of the region where more snow accumulated.
This problem can be found in the north of the region in areas around Pine Pass where up to 35 cm of new snow fell accompanied by strong wind by Saturday morning. Wind slabs may be resting on a sun crust on solar aspects which could allow avalanches failing to run further and faster than you'd normally expect.
Wet loose avalanche activity is possible if sunny skies prevail. Use caution on steep, sun-exposed slopes during the heat of the day.
Where cornices exist they pose a threat both from the potential for them to collapse under your feet (or machine) and from the potential to send large chunks of snow far down a slope. If anything can trigger the more stubborn persistent weak layers it's a large falling cornice. They are most likely to fail during the heat of the day.
ornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They are capable of triggering very large avalanches when they fail.
A bit more recent snow than expected has likely formed new wind slabs to manage in leeward terrain at upper elevations. Forecast light snow and high elevation winds should keep the possibility for this problem at top of mind as you reach exposed terrain.
A persistent weak layer of sugary facets continues to lurk deep in the snowpack. Three large avalanches (size 2-3) have failed on this interface in the past week. The first two occurred last weekend during an intense warm-up and the third was initiated by a cornice failure yesterday near McBride. These avalanches were all reported from northeasterly slopes in the alpine. The persistent slab will likely need a large trigger, however, the weight of a person plus a machine might just be enough. This is a low probabilty but high consequence scenario and very hard to predict.
Wet loose avalanches are possible below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"fma9f","text":"Dry loose avalanches will be very likely on steep south facing slopes at upper elevations when the sun comes out in the afternoon.
A persistent weak layer of sugary facets continues to lurk deep in the snowpack. Three large avalanches (size 2-3) have failed on this interface in the past week. The first two occurred last weekend during an intense warm-up and the third was initiated by a cornice failure Wednesday near McBride. These avalanches were all reported from northeasterly slopes in the alpine. The persistent slab will likely need a large trigger, however, the weight of a person plus a machine might just be enough. This is a low probabilty but high consequence scenario and very hard to predict.
0-50 cm of snow has recently fallen at upper elevations. Strong and changing ridgetop winds from the southwest to the northwest may have formed wind slabs on many aspects and could be reactive to human triggering on alpine slopes.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2ucnt","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9mcjo","text":"
New wind slabs exist in leeward terrain features at upper elevations. Continuing light flurries and intermittently elevated winds should keep this problem reactive (but small) in the coming days.
A persistent weak layer of sugary facets continues to lurk deep in the snowpack. Three large avalanches (size 2-3) have failed on this interface in the past week. The first two occurred last weekend during an intense warm-up and the third was initiated by a cornice failure Wednesday near McBride. These avalanches were all reported from northeasterly slopes in the alpine. The persistent slab will likely need a large trigger, however, the weight of a person plus a machine might just be enough. This is a low probabilty but high consequence scenario and very hard to predict.
Use caution on steep sun-exposed slopes during the heat of the day if sunny skies prevail, which is forecast for the north of the region (e.g., Duffey, Hurley). The problem is most likely a potential concern at higher elevations where recent snow has accumulated.
Wet loose avalanche activity is possible if sunny skies prevail. This will be the first time all the recent snow has seen a good warm-up so avoid sun-exposed slopes should you find wet, sticky snow.
Use caution on steep sun-exposed slopes during the heat of the day if sunny skies prevail. The problem is most likely a potential concern at higher elevations where recent snow has accumulated.
A persistent weak layer of sugary facets continues to lurk deep in the snowpack. Three large avalanches (size 2-3) have failed on this interface in the past week. The first two occurred last weekend during an intense warm-up and the third was initiated by a cornice failure Wednesday near McBride. These avalanches were all reported from northeasterly slopes in the alpine. The persistent slab will likely need a large trigger, however, the weight of a person plus a machine might just be enough. This is a low probabilty but high consequence scenario and very hard to predict.
A persistent weak layer of sugary facets continues to lurk deep in the snowpack. Three large avalanches (size 2-3) have failed on this interface in the past week. The first two occurred last weekend during an intense warm-up and the third was initiated by a cornice failure Wednesday near McBride. These avalanches were all reported from northeasterly slopes in the alpine. The persistent slab will likely need a large trigger, however, the weight of a person plus a machine might just be enough. This is a low probabilty but high consequence scenario and very hard to predict.
Strong westerly wind forecast overnight will likely transport recent snow into fresh, reactive wind slabs at upper elevations. Watch for wind loaded pockets in lee terrain features such as beneath ridge crests and roll-overs.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gvpb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8q1lj","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gvpb","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2mmq","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7qd8u","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
The persistent slab problem is most likely on the eastern slopes of the region (e.g., Kakwa, Tumbler Ridge) and in areas where the snowpack is thin. Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger buried weak layers. This problem likely won't go away until substantial melt-freeze cycling occurs.
The persistent slab problem is most likely on the eastern slopes of the region (e.g., Kakwa, Tumbler Ridge) and in areas where the snowpack is thin. Steep, rocky slopes with a shallow or thin to thick snowpack in the alpine are the most likely places to trigger buried weak layers. This problem likely won't go away until substantial melt-freeze cycling occurs.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Watch for wind slabs as you transition into wind affected terrain. Southwesterly winds have been loading lee terrain, especially near ridge crests. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"64ssl","text":"
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. They become increasingly weak when the sun comes out.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2gvpb","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8q1lj","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2mmq","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7qd8u","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
Watch for wind slabs as you transition into wind affected terrain. Southerly winds have been loading lee terrain, especially near ridge crests.
Cornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind. Direct sun and rising freezing levels can weaken cornices significantly.
oose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
0-40 cm of fresh snow has recently fallen at upper elevations. Strong and changing ridgetop winds from the southwest to the northwest may have formed wind slabs on many aspects. Wind slabs may be reactive to human triggering on Wednesday. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2ucnt","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9mcjo","text":"
Small loose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature is above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
Recent strong southwest through northwest winds have been building fresh cornice growth. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2mmq","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7qd8u","text":"Cornices falls can be a hazard on their own, and can also act as a trigger for avalanches on the slopes below.
Cornices are fragile due to rapid growth from recent snow and wind. Strong sun will further weaken them. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
et loose avalanches are possibly below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"do0ds","text":"Dry loose avalanches will be very likely on steep south facing slopes at upper elevations when the sun comes out in the afternoon.
Wet loose avalanches are possible below treeline.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"35ul5","text":"Dry loose avalanches will be very likely on steep south facing slopes at upper elevations when the sun comes out in the afternoon.
ornices are large and looming along many ridgelines, and have likely grown with the recent snow and wind.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
et loose avalanches are possible on steep south facing slopes and at elevations where air temperatures rise above freezing.
Small loose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
Wet loose avalanches are possible on steep south facing slopes and at elevations where air temperatures rise above freezing.
Lingering wind slabs may remain reactive to human triggers. Use caution when transitioning into wind affected terrain.
solated wind slabs may still react to human triggering in steep features at ridgecrest.
oose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
oose avalanches can be expected in the new snow on steep solar aspects and at elevations where air temperature rises above freezing. Below treeline, loose wet avalanches are possible where snow did not refreeze overnight.
The recent snow may moisten and form wet loose avalanches during the heat of the day, especially on sun-exposed slopes.  The most likely areas to get into trouble would be on steep slopes above terrain traps.
The recent snow may moisten and form wet loose avalanches on sun-exposed slopes if clear skies prevail.
The recent snow may moisten and form wet loose avalanches on sun-exposed slopes if clear skies prevail.
The recent snow may moisten and form wet loose avalanches on sun-exposed slopes if clear skies prevail.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Isolated wind slabs may still react to human triggering in steep features at ridgecrest.
Wind slabs will be most likely be isolated to immediate lees of ridgecrests and roll-overs in wind exposed alpine terrain.
Lingering pockets of wind slab may be triggerable in unsupported terrain features.
Cornices are large and looming along many ridgelines, and have likely grown with recent fresh snow and wind.
Cornices are large and looming along many ridgelines, and have likely formed fragile new growth with recent snow and wind.
Cornices are large and looming along many ridgelines and will have formed fragile new growth with the recent snow and wind.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous on their own and they can also trigger slabs on slopes below.
Wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
Lingering pockets of wind slab may be triggerable in unsupported terrain features.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"4nfv6","text":"
Small wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
The snow surface will begin to weaken as warm air and sunny skies prevail. Resulting avalanches are anticipated to be small, so the most likely features to get into trouble are above terrain traps.
Lingering pockets of wind slab may exist in immediate lees of ridge crests and roll-overs at upper elevations. They may remain sensitive to triggering especially where they sit over a crust.
Wet loose avalanches may be possible on steep slopes exposed to strong sun.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
solated wind slabs may still react to human triggering in steep features at ridgecrest.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Isolated wind slabs may still react to human triggering in steep features at ridgecrest.
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Watch for pockets of unstable snow in steep alpine terrain.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Surface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Isolated wind slabs may still react to human triggering in steep features at ridgecrest.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3vpvt","text":"
urface snow can quickly lose cohesion and become unstable with solar warming during the day. Avoid exposing yourself to terrain where a small wet loose release could have big consequences.
Wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
et loose avalanches may be possible on steep slopes exposed to strong sun.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Lingering wind slabs formed by 20-30 cm of recent snow and previously strong winds may remain reactive on lee features on all aspects in the alpine.
Cornices are especially fragile this time of year, especially when the sun is out. Cornice falls are dangerous on their own and they can also trigger slabs on slopes below.
Cornices are often fragile this time of year, especially when the sun is out. Cornice falls are dangerous in their own right and they can also trigger slabs on slopes below.
Small wet loose avalanches may start to run naturally on steep solar aspects when the sun comes out.
Cornices are large and looming along many ridgelines. They are capable of triggering large avalanches when they fail.
Dry loose avalanches may be possible on steep slopes in the unconsolidated new snow.
The potential for strong sun and rising temperatures midday may produce wet loose avalanches in the recent snow.
xpect natural wet loose avalanches to occur on solar aspects if the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Expect natural wet loose avalanches to occur on solar aspects if the sun comes out.
Isolated wind slabs may still react to human triggering in steep features at ridgecrest.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3vpvt","text":"
Lingering wind slabs formed by 10-20 cm of recent snow and previously strong winds from shifting directions may remain reactive on lee features in the alpine.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"7kidm","text":"
solated wind slabs may still react to human triggering in steep features at ridgecrest.
Lingering pockets of wind slab may be triggerable in unsupported terrain features.
xpect natural wet loose avalanches to occur on solar aspects when the sun comes out.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dvssg","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"8mr77","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9fqsc","text":"
Expect natural wet loose avalanches to occur on solar aspects when the sun comes out.
A prolonged period of warm air and sunny skies will start to warm the snowpack, increasing the likelihood of reactivating buried weak layers. It is uncertain if and when large slab avalanches may release, but the possibility remains during this warm period. The most likely areas for deeper releases include rocky and thin snowpack areas.
Wind slabs in lee terrain may still react to human triggers.
Isolated wind slabs may still react to human triggering in steep features at ridgecrest.
Isolated wind slabs may still react to human triggering in steep features at ridgecrest.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"3vpvt","text":"
Watch for pockets of unstable snow on steep exposed slopes.
Strong solar radiation and warming may trigger the large cornices that hang over ridgelines.
Lingering wind slabs formed by 20-30 cm of recent snow and wind may still be reactive on lee features on all aspects in the alpine.
Prolonged warming could increase the sensitivity of deeply buried layers in the snowpack. While these layers have not been reactive lately, you should practice increasing caution during this period of warm weather. Thin rocky slopes are most suspect.
Each day of warm weather increases the likelihood of reactivating buried weak layers. It is uncertain if and when large slab avalanches may release but the possibility remains during this warm period. Deeper releases are most likely in shallow snowpack areas on the eastern slopes of the Purcells. Heavy cornice falls might trigger large slab avalanches. Skiers and riders might be able to trigger buried weak layers in rocky and shallow snowpack areas.
Lingering wind slabs formed by 20-30 cm of recent snow and wind may still be reactive on lee features on all aspects in the alpine.
Prolonged warming could increase the sensitivity of deeply buried layers in the snowpack. While these layers have not been reactive lately, you should practice increasing caution during this period of warm weather. Steep rocky terrain with a shallow or thin to thick snowpack are most suspect.
Watch for pockets of unstable snow on steep exposed slopes.
20 cm of  heavy storm snow has buried a layer of surface hoar, and on southerly aspects a sun crust. With forecast snow and wind over the weekend, this layer will become a concern. It will be easy to trigger and as the slab develops it may propagate.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
Shifty winds Sat. created thin wind slabs near ridge crests.  These will increase in size and sensitivity with continued wind transport.
The Nov 6 rain crust is down 50-90 cm, and this is still a significant layer in the snowpack. Evaluate this layer carefully prior to entering steeper/bigger terrain.  Weakening of this layer through facetting has been the general trend.
A natural avalanche was &quot;heard&quot;  originating on steep unskiable terrain on a predominantly Northeasterly aspect in Hilda creek area. Pay particular attention to steep unsupported wind loaded slopes in the alpine.
A persistent facetted weakness can be found around a mid-pack crust. There is low likelihood of natural avalanches occurring on this layer but we are watching as each small system deposits more snow load.
We've received 40cm of snow in the past 3 days. This soft slab will be most reactive where it buried surface hoar or sun-crust.  We expect more snow and strong winds today, which may overload these layers resulting in natural avalanches.
Winds picked up yesterday, and there is lots of new snow available for transport. S-SW winds loaded lee slopes, triggering natural avalanches in steep terrain. Expect touchy loaded pockets, and soft windslabs on lee slopes.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
Approx. 5cm of new snow and light West wind will create soft wind slabs in alpine terrain.
While it is unlikely, triggering this layer is still possible. It is located 50-90cm below the surface. Use caution and consider this layer when venturing into larger terrain.
A size 2 avalanche was observed on the Parker ridge slidepaths. Pay particular attention to steep unsupported wind loaded slopes in the alpine.
A persistent facetted weakness can be found around a mid-pack crust.  An isolated size 3 avalanche on a steep Northerly large open slope in the Hilda Creek area likely ran on this layer.
Moderate to strong S-SW winds have loaded lee slopes, triggering natural avalanches in steep terrain. Expect touchy loaded pockets, and soft windslabs on lee slopes.
We've received 60cm of snow in the past 4 days. This soft slab will be most reactive where it buried surface hoar or sun-crust. We expect more snow and strong winds today, which may overload these layers resulting in natural avalanches.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
A size 2 avalanche was observed on the Parker ridge slidepaths. Pay particular attention to steep unsupported wind loaded slopes in the alpine.
A persistent facetted weakness can be found around a mid-pack crust.? An isolated size 3 avalanche on a steep Northerly large open slope in the Hilda Creek area likely ran on this layer.
Moderate SW winds and lots of snow available for transport has created touchy wind slabs in the alpine. Forecasted strong winds for Tuesday will exasperate the slab development and increase the avalanche hazard.
While it is unlikely, triggering this layer is still possible. It is located 50-90cm below the surface. Use caution and consider this layer when venturing into larger terrain.
Moderate to strong S-SW winds have loaded lee slopes, triggering natural avalanches in steep terrain. Expect touchy loaded pockets, and soft windslabs on lee slopes. Strong forcast winds will enhance this problem.
We've received 70cm of snow in the past 4 days. This soft slab will be most reactive where it buried surface hoar or sun-crust. We expect more snow and strong winds today, which may overload these layers resulting in natural avalanches.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
Slabs developing in open lee areas with W and SW winds. Below 1950m these will be sitting on a crust. Above 1950m there is a chance that surface hoar exists in protected areas. There is a large amount of snow now available for transport.
Buried crust layers exist at all elevations. At 2000m these are limited to basal layers which are starting to show signs of growing weak crystals. Thin areas will be of concern where cool temperatures can penetrate and triggering is more likely.
Steady moderate Southwest winds are loading Northeast aspect ridgetops and lee terrain features. Triggering a windslab may provide the energy for an avalanche to step down to the persistent weakness described below.
A persistent facetted weakness can be found around a mid-pack crust. Saturday, an isolated size 3 slab avalanche on a steep Northerly slope in the Hilda Creek area likely ran on this layer.
Strong S-SW winds have loaded lee slopes, triggering natural avalanches in steep terrain. Expect touchy loaded pockets, and soft windslabs on lee slopes. Strong forcast winds will enhance this problem.
We've received 90cm of snow on top of this layer at treeline which has settled into about 65cm of storm slab which will be most reactive where it buried surface hoar or sun-crust.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The past 2 days, strong SW winds have hammered the region leaving widespread reactive hard and soft slabs in the alpine &amp; treeline.
Despite the new load from wind and snow, no new avalanches have been reported on this layer. Consider this layer and recent additional load in your terrain choices.
Gusting Southwest winds are moving 20cm of  storm snow onto Northeast aspect ridgetops and lee terrain features. Triggering a windslab may provide the energy for an avalanche to step down to the persistent weakness described below.
A persistent facetted weakness can be found around a mid-pack crust. Saturday, an isolated size 3 slab avalanche on a steep Northerly slope in the Hilda Creek area likely ran on this layer. No other avalanches have been observed on this layer.
Strong S-SW winds have loaded lee slopes, triggering natural avalanches in steep terrain. Expect touchy loaded pockets, cornice development, and soft windslabs on lee slopes.
We've received 100cm of snow on top of this layer at treeline which has settled into about 65cm of storm slab which will be most reactive where it buried surface hoar or sun-crust.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
Natural activity has tapered off, but expect to find windslabs in steep, exposed terrain which climbers and skiers should avoid.
Less activity on the widespread Nov.6 crust of late, but explosives produced an avalanche today which failed on this layer above the Sunshine Road. This shows that larger loads are likely required, but if triggered, will cause bigger avalanches.
Variable and localized winds will continue to transport storm snow onto lee aspects particularly at ridgetops. Triggering a windslab is possible in immediate lee alpine features.
A persistent facetted weakness can be found around a mid-pack crust. Saturday, an isolated size 3 slab avalanche on a steep Northerly slope in the Hilda Creek area likely ran on this layer. No other avalanches have been observed recently.
Recent storms have left a lot of snow available for transport. Watch for slabs in loaded areas especially gullies and ridge lines. Cornices are also growing with these conditions and should be considered as possible triggers.
Be aware of a potential weak interface found at the base of the snowpack above 1900m in as this early Nov crust breaks down.
Strong S-SW winds have deposited wind packed snow on various terrain features.  Buried wind slabs have been observed in the park, use your pole to feel for these as transitioning into open terrain.
A weak layer down around 65 cm is starting to react less in stability tests. Rider-triggering is still possible.  Use caution on steep slopes facing SW-W in the alpine where a buried thin sun crust identifies the weak layer.
Soft to hard wind slabs can be found on lee and cross loaded slopes at and above treeline. Triggering is still possible on the right slope.
Isolated deep slabs have been noted every few days over the last month. Some of these have been explosive triggered and some natural, all failing near the ground on Nov 6 rain crust or glacial ice. There is still a concern for human triggering.
Variable and winds created this slab condition on lee aspects particularly at ridge tops.
A persistent facetted weakness can be found around a mid-pack crust.
This layer seems to be developing in relatively shallow snowpack areas do to a classic Rockies temperature gradient process.&nbsp;
In the past 3 days 40 cm of loose dry snow has fallen.  Expect this snow to move when traveling on steep slopes.  Be aware of other parties above and below you and manage your travel accordingly.
Strong S-SW winds have deposited wind packed snow on various terrain features.  Buried wind slabs have been observed in the park, use your ski pole to feel for these when transitioning into open terrain.
A weak layer down around 65 cm is starting to react less in stability tests.  Rider-triggering is still possible.  Use caution on steep slopes facing SW-W in the alpine where a buried thin sun crust identifies the weak layer.
Soft to hard wind slabs can be found on lee and cross loaded slopes at and above treeline. Triggering is still possible on the right slope.
Isolated deep slabs have been noted every few days over the last month. Some of these have been explosive triggered and some natural, all failing near the ground on Nov 6 rain crust or glacial ice. There is still a concern for human triggering.
Variable localized winds are creating this slab condition on lee aspects particularly at ridge tops and specific features such as cross loading gullies. Watch for reverse loading patterns and increase in activity as winds expected to increase Sunday.
A persistent facetted weakness can be found around a mid-pack crust.
This layer seems to be developing mainly in shallow snowpack areas due to the classic Rockies temperature gradient process. 
Recent storm snow is settling yet the potential for sluffing to catch a skier off guard remains our main concern. Caution skiing over terrain traps like cliffs and gullies in steep terrain where the consequences of a small stuff are magnified.
Winds associated with the incoming front are forecast to be NW&nbsp; 50 to 80km/hr at mountain top levels today which reverses typical loading patterns. Buried windslab from previous storms still linger.
Increasing winds are creating windslabs on mainly, but not exclusively, lee aspects particularly at high elevation ridge tops and specific features such as alpine gullies. Watch for reverse loading patterns and increasing natural activity.
A persistent facetted weakness can be found around a mid-pack crust.
This layer continues to develop in shallow snowpack areas which would be your likely trigger spots. Has potential to scrub to ground if initiated. 
Strong winds on Sunday have created soft and hard slabs in lee areas in the alpine.
The Nov 6th crust should still be in the back of your mind. Recent avalanches on this layer combined with uncertain means of triggering make venturing out onto big open slopes a committing choice.
Overnight winds picked up to ideal transport values to form wind slab.  Wind direction has varied from S-SW at treeline to W-NW it mountain top. Lee slopes lower down may not be the same up high.
With an additional 10-15cm of very light snow, sluffing is a concern where the wind has had no effect. Caution skiing in steep terrain and over terrain traps where sluffs will gain mass into avalanches.
Strong wind from the NW have created wind slabs in the alpine. These wind slabs vary in thickness between 15 and 30cm.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">The Nov 6th crust should still be in the back of your mind. Recent avalanches on this layer combined with uncertain means of triggering make venturing out onto big open slopes a committing choice.
Sunday's winds created a stiff wind slabs on lee aspects particularly at high elevation ridge tops and specific features such as alpine gullies. Watch for reverse loading patterns and increasing natural activity.
A persistent facetted weakness can be found around a mid-pack crust.
This layer continues to develop in shallow snowpack areas which would be your likely trigger spots. Has potential to step down to ground if initiated.
There is certainly potential for skier triggered wind slab avalanches at treeline and in the alpine.  Watch for steep wind loaded terrain or thin areas which may be weaker than the surrounding snowpack.
Sustained overnight winds with an additional load have made conditions more susceptible to windslab. This adds to the heavy snow load we have received in the past week.
There has been 72cm of new snow over the last 5 days at treeline. Last nights storm sits over 30 cm very light snow. Conditions are likely to be &quot;heavy over light&quot; increasing the likelihood of skier triggering.
Strong winds from the NW have created wind slabs in the alpine. These wind slabs vary in thickness between 15 and 30cm. With the continued mild temperatures, they have been bonding reasonably well and are more stubborn to trigger.
">The Nov 6th crust should still be in the back of your mind. Recent avalanches on this layer combined with uncertain means of triggering make venturing out onto big open slopes a committing choice.
Wind slab is present on all open lee slopes from the alpine into tree line elevations. Several natural slab avalanches have been observed on this layer today.  Watch for reverse loading patterns and increasing natural activity.
Slab avalanches and large cornice failures have triggered this weakness on E to W aspects in the alpine.  Shallow snowpack areas  and along the edges of snow pockets will be likely trigger spots.
A persistent facetted weakness can be found around a mid-pack crust.
Near ridge line, steady moderate to strong winds have created pockets of wind slab, which may be easily triggered by skiers.  Cross loaded features and gullies should also be treated with caution.
There has been 75cm of new snow over the last 6 days at treeline.  Conditions are likely to be &quot;heavy over light&quot; increasing the likelihood of skier triggering.
The wind slabs from earlier this week seem to be isolated to ridge lee features and high, open alpine terrain. A field team ventured into Yoho today and found soft slabs only at ridge-top. Likely there was more wind on the Wapta.
">Large planar faces or steeper, convex features that have been recently wind-loaded should still be given a miss due to this lingering problem.
Wind slab is present on all open lee slopes from the alpine into tree line elevations. Several natural slab avalanches have been observed on this layer.
Slab avalanches and large cornice failures have triggered this weakness on SE to NE aspects in the alpine.? Shallow snowpack areas? and along the edges of snow pockets will be likely trigger spots.
Near ridge line, pockets of wind slab persist, and may be triggered by riders. Cross loaded features and gullies should also be treated with caution.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
The wind slabs from earlier this week seem to be isolated to ridge lee features and high, open alpine terrain. In the Yoho area soft slabs were only found at ridge-top. Likely there was more wind on the Wapta &amp; along Hwy 93 North.
">Large planar faces or steeper, convex features that have been recently wind-loaded should still be given a miss due to this lingering problem.
Pockets of wind slabs that vary in hardness are present on all open lee slopes.  No new avalanches have been observed and field tests show that these slabs have bonded well in most locations.
Large loads such as slab avalanches and large cornice failures have triggered this weakness on SE to NE aspects in the alpine.
New snow and moderate SW winds are creating thin and spotty surface slabs. These now hide buried windslabs that are quite developed from strong winds in the last few days. Use your poles to help detect these hidden slabs.
Near ridge line, pockets of wind slab persist, and may be hidden by a covering of storm snow. These slabs can be triggered by riders. Cross loaded features and gullies should also be treated with caution.
The Nov 6 crust complex has yet to wake up. While the likelihood of triggering is low, it will produce large avalanches. As the load on this layer increases, it may become reactive. Smaller avalanches may step down to this deeper layer.
Pockets of wind slabs that vary in hardness are present on all open lee slopes. No new avalanches have been observed and field tests show that these slabs have bonded well in most locations.
Large triggers such as cornice failures have triggered this weakness on SE to NE aspects in the alpine.
The wind slabs from earlier this week seem to be isolated to ridge lee features and high, open alpine terrain. There has not been much activity in these slabs, except for isolated wind events at ridge-top.
">The Nov 6 rain crust has yet to wake up. If the load on this layer increases, it may become reactive, producing large avalanches. Smaller avalanches may step down to this deeper layer.
Isolated pockets of windslab have been buried in the immediate lees of ridgecrests; likely in places where even a small avalanche would have high consequences. Winds will increase through the day and over the weekend and may form new windslabs.
While the thick crust at the base of the snowpack has yet to be reactive, if it does produce an avalanche it will be very large. Cornice falls or other avalanches stepping down to this layer, or triggering from thin areas are possible.
A trip report from Surprise pass (N/NE aspect) found pencil hard, thin windslabs in wind exposed terrain. These have also been found near ridge top but have been stubborn to unreactive in field tests.
">We are seeing weakening of the Nov 6 crust in thinner areas due to facetting.  Although we haven't seen activity on this layer recently, it is still a prominent feature of the snow pack, and should be evaluated in bigger features.
Pockets of wind slabs that vary in hardness are present on all open lee slopes. No new avalanches have been observed and field tests show that these slabs have bonded well in most locations.
Cornice failures have triggered this weakness on SE to NE aspects in the alpine.
Isolated windslabs and windloaded pockets have been buried in the immediate lees of ridgecrests. They are more likely in places where even a small avalanche would have high consequences; steep, complex terrain.
Pockets of wind slabs that vary in hardness are present on all open lee slopes. No new avalanches have been observed  in the last week, and field tests show that these slabs have bonded well in most locations.
The November raincrusts are deteriorating into a facet layer that is not responding to field tests at this time. 
There are some freshly formed windslabs on lee terrain at and above treeline that are sensitive to skier triggering. In the right terrain these could take the skier into a terrain trap.
">We are seeing weakening of the Nov 6 crust in thinner areas due to facetting.? Although we haven't seen activity on this layer recently, it is still a prominent feature of the snow pack, and should be evaluated in bigger features.
Moderate W winds and new snow are developing 10-30cm thick soft slabs over previously widespread hard slabs. Step out of the track and get a feel for the density of the snow you are traveling in.  Use your poles to feel for buried slabs.
Yesterday, avalanche technicians found thin, touchy windslabs above 2300m that were easily triggerable on convex, unsupported features. They are of most concern where even a small avalanche would have high consequences; steep, complex terrain.
A breakable 10cm + wind slab on an exposed ridge feature did not propagate and expand to an avalanche indicating that more recent wind slabs are still bonding well to the older snow surface.
The November rain crusts are deteriorating into a facet layer that is not responding to field tests at this time.
There are some old windslabs on lee terrain at and above treeline that are sensitive to skier triggering. In the right terrain these could take the skier into a terrain trap.
">We are seeing weakening of the Nov 6 crust in thinner areas due to facetting. Although we haven't seen activity on this layer recently, it is still the prominent feature in this years snow pack, and should be evaluated in bigger features.
Strong winds overnight and lots of storm snow have created touchy windslabs above 2300m that are easily triggerable on convex, unsupported features. Look for soft slabs at treeline and above, near ridgelines.
While the thick crust at the base of the snowpack has yet to be reactive, if it does produce an avalanche it will be very large. Cornice falls or other avalanches stepping down to this layer, or triggering from thin areas are possible.
New snow is hiding old windslabs in lee terrain at and above treeline that may be sensitive to skier triggering. In the right terrain these could take the skier into a terrain trap.
">We are seeing weakening of the Nov 6 crust in thinner areas due to facetting. Although we haven't seen activity on this layer recently, it is still the prominent feature in this years snow pack, and should be evaluated in bigger features.
Moderate test results at treeline in the Portal creek area occurred on a Southeast facing 35 degree slope below a 25cm wind slab.
The November rain crusts are deteriorating into a facet layer that is not responding to field tests at this time. A consolidated midpack is providing bridging strength over this layer and the basal facets.
Strong winds early this week, combined with 40cm of storm snow have created touchy windslabs at treeline and alpine elevations that are easily triggerable on convex, unsupported features. Look for soft slabs at or near ridgelines.
While the thick crust at the base of the snowpack has yet to be reactive, if it does produce an avalanche it will be very large. Cornice falls or other avalanches stepping down to this layer, or triggering from thin areas are possible.
Moderate test results at treeline in the Portal creek area occurred on a Southeast facing 35 degree slope below a 25cm wind slab. Strong SW winds in the Icefields area at upper elevations are likely adding to this condition.
A supportive mid-pack is adding strength to the snowpack above this weakness. Shallow areas should be considered suspect.
5-15 cms of new snow along with mod. S/SW winds is creating thin slabs in immediate lees at ridgetop elevations. In most areas, these slabs aren't thick enough to be a concern yet; however, forecasted mod. winds on thursday might elevate the hazard.
">We are seeing weakening of the Nov 6 crust in thinner areas due to facetting. Although we haven't seen activity on this layer recently, it is still the prominent feature in this years snow pack, and should be evaluated in bigger features.
Strong winds early this week, combined with 40cm of storm snow have created touchy softslabs at treeline and alpine elevations that are easily triggerable on convex, unsupported features. Look for soft wind slabs at or near ridgelines.
While the thick crust at the base of the snowpack has yet to be reactive, if it does produce an avalanche it will be very large. Cornice falls or other avalanches stepping down to this layer, or triggering from thin areas are possible.
10-20 cms of new snow along with mod. S/SW winds is creating slabs up to 40 cms thick  in immediate lees at ridgetop elevations. This new instability has been reactive to skier traffic with ski cutting to size 1.5.
Previous moderate to strong SW winds in the Icefields area at upper elevations have added to this condition.
A supportive mid-pack is adding strength to the snowpack above this weakness. Shallow areas should be considered suspect.
Wind slabs forming near ridge crests and open areas due to strong SW winds over the last couple of days.&nbsp; Use your poles and skis to probe/feel for wind slabs.&nbsp;
Spikes in wind speeds in the last 24hrs have created fresh windslabs. Hard slabs exist right at ridgecrests, with soft slabs in the lees. Where they exist, these slabs may be triggered by skiers or riders.
It's looking sunny out there this morning. Expect small, loose avalanches from steep solar aspects today.
Wind slabs 20-50cm thick in wind exposed areas from recent SW winds. These seem to be isolated to the lees of terrain features and ridge crests.  Reports are finding these wind slabs to be sitting on a thin layer of facets formed in early Dec.
10 cm of new snow has buried the wind slabs that formed earlier this week from moderate to strong SW winds in the Icefields area.
The strong mid-pack above this weakness is slowly loosing its strength. This issue is more prevalent in shallow snow pack areas.
Hard slabs exist right at ridgecrests, with soft slabs in the lees of ridges and ribs of terrain above treeline. These slabs are now shallowly buried and are most likely to be triggered on convex, unsupported terrain features.&nbsp;
Thursday's 10 cm of snow has buried the wind slabs which formed earlier this week. Winds have shifted from S to N. Watch for reverse loading patterns.
The strong mid-pack above this weakness is slowly loosing its strength. This issue is more prevalent in shallow snow pack areas being likely trigger spots.
Wind slabs 20-50cm thick in wind exposed areas from recent SW winds. These seem to be isolated to lees of terrain features and ridge crests.  Reports are finding these wind slabs to be sitting on a thin layer of facets formed in early Dec.
The storm snow is forming very soft slabs on lee and crossloaded features. These were easily triggered yesterday on steep slopes, and are now 10cm deeper with overnight snow. These slabs may be more reactive due to a period of strong wind overnight.
Thursday's 10 cm and Sunday's 8cm of snow with little wind has buried the preexisting wind slabs. Winds have shifted from S to N yet remain in light range. Watch for reverse loading patterns from local terrain influences.
The strong mid-pack above this weakness is slowly loosing its strength. Shallow snow pack areas are potential trigger spots. Consequences would be severe if initiated.
Caution in steep terrain for failures within the recent storm snow.  The storm snow should start to settle out and bond over the next few days.
Caution for new wind loading near ridge crests and for buried windslabs formed just prior to the storm.
New snow from last night (10-20cm) came with very little wind. Therefore, wind slabs formed in the last few days have now been buried. These wind slabs ranged between 20 and 50cm thick and are located in isolated lee areas.
Instabilities may linger down 30 to 40cm in the snowpack that were reactive to skier triggering. They are located near ridge tops and on cross loaded terrain features.
Thursday's 10 cm and Sunday's 8cm of snow with little wind has buried the preexisting wind slabs. Winds have shifted from S to N yet remain in light range. Watch for reverse loading patterns from local terrain influences.
The strong mid-pack above this weakness is slowly loosing its strength. Shallow snow pack areas are potential trigger spots. Consequences would be severe if initiated.
Light winds are creating soft slabs near ridge crests which should be considered if entering steep terrain.&nbsp; Also be aware of previous wind slabs now covered with the recent storm snow.
The new snow is bonding well but will settle slowly with the cooler temperatures.&nbsp; Watch for sluffing and soft slabs in steep terrain.
Isolated pockets of wind slab were noted yesterday at and above treeline on wind exposed areas.  A 10cm wind skin overlies a 35 cm thick wind slab.  Cross loaded and windward areas should be treated with caution.
A storm on December 23 dropped between 15 to 30 cm of low density snow over the forecast region. Generally very little wind effect in the storm snow, but variable ridge top winds have created some wind slabs at upper elevations.
Thursday's 10 cm and Sunday's 8cm of snow with little wind has covered the widespread wind slab condition that remains following last week's wind event. Current winds remain light and little change is expected in the snowpack.
The once strong snowpack is starting to show signs of losing strength as faceting conditions dominate the weather picture.  Triggering avalanches is most likely to happen in thin snowpack areas. 
Isolated pockets of wind slab were noted yesterday at and above treeline on wind exposed areas.? A 10cm wind skin overlies a 35 cm thick wind slab.? Cross loaded and windward areas should be treated with caution.  Watch for reverse loading.
Some sluffing in steep terrain could knock a skier over.?  Ski tracks down Cheops West produced some sluffing in gullies, but stopped near the top of the track.
A storm on December 23 dropped between 15 to 30 cm of low density snow over the forecast region. Variable ridge top winds have created some wind slabs at upper elevations.
Small natural slab avalanches to size 1.5 are starting to pull out to ground on the basal facets in thin snowpack areas.&nbsp; Faceting continues to weaken the snowpack on thicker slopes. Triggering is most likely to happen in thin snowpack areas.
The wind slab condition that formed following last week's wind event has been buried by recent snows. These wind slabs are most likely found immediate to ridge lines on open slopes.
Isolated pockets of wind slab can still be found in specific locations near ridge crests and gully features.
Surface sluffing remains likely in steep terrain.  Volumes may be greater today, due to a skiff of new snow over a layer of surface hoar, most notable at treeline.
A storm on December 23 dropped between 15 to 30 cm of low density snow over the forecast region. Variable  winds have created some wind slabs within the storm snow at ridge top elevations.
Moderate to strong westerly winds continue to build wind slab conditions on slopes and along ridge lines.  No avalanche activity was observed on this developing condition, however, we have not tested the bonding strength.
On Wednesday, small natural slab avalanches to size 1.5 were observed on the basal facets in thin snowpack areas.  Triggering is most likely to happen along edges of shallow pockets and from thin spots like rocks or trees.
Wind slabs forming with increasing NW winds and lots of recent storm snow available for transport.&nbsp; The hazard will slowly increase over the next several days.
Isolated pockets of wind slab can still be found in specific locations near ridge crests and gully features.
You will likely trigger fast moving sluffs in steep terrain today. Even small sluffs can turn into a greater hazard in steep terrain, especially to parties below you.
A storm on December 23 dropped between 15 to 30 cm of low density snow over the forecast region. Variable? winds have created some wind slabs within the storm snow at ridge top elevations.
Moderate to strong westerly winds have created wind slab conditions on slopes and along ridge lines especially in the Icefields area. No avalanche activity has been observed on this condition, however, we have not tested the bonding strength.
On Wednesday, small natural slab avalanches to size 1.5 were observed on the basal facets in thin snowpack areas. Triggering is most likely to happen along edges of shallow pockets and from thin spots like rocks or trees.
Sluffs and loose avalanches will be easily triggered in sufficiently steep terrain today, be careful exposing yourself over terrain traps like cliffs or gullies.
Reports are showing windslabs created in the last week are stubborn to unreactive on lee ridgetop features. Most likely triggerable in aggressive, steep, lee terrain near ridgetops.
Moderate to strong westerly winds have created wind slab conditions on slopes and along ridge lines especially in the Icefields area. No avalanche activity has been observed on this condition, however, we have not tested the bonding strength.
On Wednesday, small natural slab avalanches to size 1.5 were observed on the basal facets in thin snowpack areas. Triggering is most likely to happen along edges of shallow pockets and from thin spots like rocks or trees.
Sluffs and loose avalanches are still the main concern today in sufficiently steep terrain. They can be skier triggered or triggered naturally from solar radiation. Caution below rocky outcroppings on south and west aspects.
Wind slabs can be found above treeline in exposed terrain. These slabs are generally unreactive to skier traffic, although it is still possible to trigger a slab in steep wind loaded features.
Numerous natural loose dry avalanches were observed in the Columbia Icefield Area today. These slides originated from steep, rocky terrain in the alpine, as well as steep alpine gully features that are in the sun during the heat of the day.
Reports are showing windslabs created in the last week are stubborn to unreactive on lee ridgetop features. Most likely triggerable in aggressive, steep, lee terrain near ridgetops.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive.
The cold temperatures are facetting out cornices and large cornice failures have been observed. Although the cornice failures have not been triggering slabs on the slopes below, the cornice chunks themselves would definitely hurt if they hit you
The loose upper snow sluffs easily on steep slopes. So far, these have produced small (size 1) skier and naturally triggered loose avalanches. On large steep slopes, these may gain mass and become larger.
Wind slabs can be found above treeline in exposed terrain. These slabs are generally unreactive to skier traffic, although it is still possible to trigger a slab in steep wind loaded features.
Numerous natural loose dry avalanches were observed in the past 48 hours. These slides originated from steep, rocky terrain in the alpine, as well as steep alpine gully features that are in the sun during the heat of the day.
Reports are showing windslabs created in the last week are stubborn to unreactive on lee ridgetop features. Most likely triggerable in aggressive, steep, lee terrain near ridgetops.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive.
The cold temperatures are facetting out cornices and large cornice failures have been observed. Although the cornice failures have not been triggering slabs on the slopes below, the cornice chunks themselves would definitely hurt if they hit you
A few cm of recent snow now hides windslabs that were created by SW winds. These slabs are variable and recent activity has shown that they are quite large in some areas and may be triggered by light loads. Use your poles to  help feel for these.
The loose upper snow sluffs easily on very steep slopes. So far, these have been small (size 1) skier and solar triggered loose avalanches. On large steep slopes, particularly gully features, these may gain mass and become larger.
Wind slabs can be found above treeline in exposed terrain. These slabs are generally unreactive to skier traffic, although it is still possible to trigger a slab in steep wind loaded features.
Numerous natural loose dry avalanches were observed in the past 48 hours. These slides originated from steep, rocky terrain in the alpine, as well as steep alpine gully features that are in the sun during the heat of the day.
The loose upper snow sluffs easily on very steep slopes. So far, these have been small (size 1) skier and solar triggered loose avalanches. On large steep slopes, particularly gully features, these may gain mass and become larger.
Wind slabs can be found above treeline in exposed terrain. These slabs are generally unreactive to skier traffic, although it is still possible to trigger a slab in steep unsupported terrain.
High overcast clouds have decreased the loose snow avalanche activity. With increased sunny periods, this avalanche activity will occur in the afternoon. Consider the overhead snow hazard on the steep rocky terrain above when selecting your ice climb
Localized moderate winds have created hard windslabs in exposed alpine terrain. Although these have not been reactive to human traffic, they may become more reactive as the alpine temps increase.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive, particularly as temps increase.
The cold temperatures are facetting out cornices and large cornice failures have been observed. Although the cornice failures have not been triggering slabs on the slopes below, the cornice chunks themselves would definitely hurt if they hit you
The loose upper snow sluffs easily on very steep slopes. So far, these have been small (size 1) skier and solar triggered loose avalanches. On large steep slopes, particularly gully features, these may gain mass and become larger.
Warm air at treeline and above combined with sun may cause cornices to weaken and fall. Be cautious near or under cornices.
Wind slabs can be found above tree line in exposed terrain. These slabs have been unreactive to skier traffic, however, it is still possible to trigger a slab in steep unsupported terrain.
Loose snow avalanches are likely on steep thin slopes and in gulley features.  Although these avalanches are possible on all aspects, solar triggering is most likely.
The cold temperatures are facetting out cornices and large cornice failures have been observed. Currently there is an objective hazard from natural cornice failures as well as a hazard from human triggering while walking on ridges.
Moderate winds have created hard windslabs in exposed alpine terrain. Although these have not been reactive to human traffic, they may become more reactive as the alpine temps increase.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive, particularly as temps increase.
Recent West winds have created hard and soft slabs near ridge crests and in open areas at tree line and in the alpine.&nbsp; Use your poles to help feel for these and avoid steep wind loaded and cross loaded terrain.
The loose upper snow sluffs easily on very steep slopes. So far, these have been small (size 1) skier and solar triggered loose avalanches. On large steep slopes, particularly gully features, these may gain mass and become larger.
Wind slabs can be found above tree line in exposed terrain. These slabs have been unreactive to skier traffic, however, it is still possible to trigger a slab in steep unsupported terrain.
Loose snow avalanches are likely on steep thin slopes and in gulley features.  Loose snow avalanches are possible on all aspects, however, solar triggering is most likely.
Moderate winds have created hard windslabs in exposed alpine terrain.  So far, we have seen little action with this layer.  Areas of wind effect and loading are fairly easy to recognize now. Pick sheltered locations, near the divide for best skiing.
This problem exists mainly in thin snowpack areas E of the divide where the snowpack has completely facetted and lost all cohesion. Watch for sloughing in steep terrain where the snow is unsupportive.&nbsp; This is especially a concern for ice climbers.
The cold temperatures are facetting out cornices and large cornice failures have been observed. Currently there is an objective hazard from natural cornice failures as well as a hazard from human triggering while walking on ridges.
The loose upper snow sluffs easily on steep slopes. Riders are reporting these running fast and far. On large steep slopes, particularly gully features, these will gain mass and become larger.  Manage your travel accordingly.
Wind slabs can be found above tree line in exposed terrain. These slabs have been unreactive to skier traffic, however, it is still possible to trigger a slab in steep unsupported terrain.
Loose snow avalanches are likely on steep thin slopes and in gulley features. 
Watch for sloughing in very steep, shallow terrain where the snow has lost all cohesion due to facetting.
Variable wind slabs have been mainly unreactive in the past few days, but are still areas to avoid in steep alpine features. 
23cm of new snow sits over an old snow interface that is not likely to bond quickly. This new snow will add to the sluffing that has been observed over the past week when triggered.
Winds picked up last night and are still on the rise. Be aware of&nbsp; the changing snow conditions as you enter more wind exposed terrain.
Wind slabs can be found above tree line in exposed terrain. These slabs have been unreactive to skier traffic; however, it remains possible to trigger one in steep unsupported terrain. Assess your transitions for changing conditions.
Loose snow avalanches are possible in steep thin snowpack slopes and gully features as facetting process dominates. Solar triggering is most likely initiator but not solely responsible. They may  knock you off a climb or bury you in a terrain trap.
New snow and moderate wind from the West have started to create wind slabs in alpine lee areas. Expect these wind slabs to be reactive to skier traffic tomorrow.
Steep gully features with shallow snow packs are the likely areas to run into this problem.
33 cm of new snow sits over variable weak layers such as surface hoar, sun crust or facets, depending on your aspect and elevation. These are ideal  layers for an avalanche to release on.
Steady overnight winds have created wind slabs in wind exposed areas and will react easily to skier triggering.   
Wind slabs can be found above tree line in exposed terrain. These slabs have been unreactive to skier traffic; however, it remains possible to trigger one in steep unsupported terrain. Assess your transitions for changing conditions.
Loose snow avalanches are possible in steep thin snowpack slopes and gully features as facetting process dominates. Solar triggering is most likely initiator but not solely responsible. They may knock you off a climb or bury you in a terrain trap.
New snow and moderate wind from the West have started to create wind slabs in alpine lee areas. This problem is more prominent W of the divide where more snow has fallen. Expect these wind slabs to be reactive to skier traffic.
Steep gully features with shallow snow packs are the likely areas to run into this problem. This problem is most prominent in ice climbing terrain where a small new snow sluff could entrain the facets and push a climber off their feet.
  Weak layers such as surface hoar, sun crust or facets, depending on your aspect and elevation, are now buried 40 to 60cm deep. These are in the range of skier triggering and wider propagation as the slab settles.
Higher elevations saw strong overnight winds creating wind slabs over buried weak layers. 
The incoming storm will dump up to 40cm at high elevations, approx 25cm at tree-line. This will provide the load necessary to make traveling in avalanche terrain something to avoid until the storm slabs have a chance to settle.
New wind slabs will be forming on lee slopes with 30 cm of storm snow and strong SW alpine winds.  Open tree line features will also see slab development.  In many lee areas, these slabs will be sitting on top of the weak January 6th surface hoar.
Up to 30 cm of storm snow is possible in the next 24 hrs.  We will likely see an avalanche cycle involving the storm snow on steep slopes.
Up to 65cm of storm snow lies on a weak interface of surface hoar and sun crust.  These layers are very reactive to skier triggering.  A widespread avalanche cycle occurred overnight, and avalanche control is planned for today.
Higher elevations saw strong overnight winds (up to 70 kph) creating wind slabs over buried weak layers.
30-50 cm thick soft slabs have formed especially on lee slopes. 30 cm of storm snow have been accompanied by moderate gusty SW alpine winds. 
30-50 cm at treeline in past 24 hours and up to 80 cm in past 72 hours. Moderate SW winds producing storm slabs that are sitting on a weak facet layer. Widespread natural cycle in storm snow observed on Wednesday.
Up to 70 cm of storm snow lies on a weak interface of surface hoar and sun crust, burried on January 4.  Avalanche control yesterday produced many avalanches on this layer.  Storm snow will continue to be reactive to skier triggering
The January 4 surface hoar, sun crust, facet interface will likely become a persistent weak layer in the weeks to come.  Recent strong winds have already created harder wind slabs at and above treeline on this layer.
Up to 80 cm at treeline of recent storm snow and moderate SW winds have created storm slabs on a weak facet layer. The natural cycle is over but we still expect these slabs to be reactive to skier triggering.
30-50 cm thick soft wind slabs have formed on lee slopes with 30 cm of storm snow and moderate gusty variable alpine winds.
Surface sluffing on slopes over 35 degrees. Manage this carefully within the group by not skiing above other skiers and avoiding terrain traps and gullies or confined terrain. This should decrease with settling over the next few days.
A persistent weak layer down 50 to 70cm is reactive to skier triggering.  Our observations suggest the most reactive locations are steep S/SW facing slopes and open glades. Strong south winds may have created harder wind slabs at and above treeline.
Up to 70 cm of loose storm snow is easily triggered by riders in steep terrain.  Watch for fast sluffing especially in steep open glades where a surface hoar layer makes for easy sliding. Manage your travel accordingly.
30-50 cm thick soft slabs have formed where winds have touched the slope. This may overlie a buried surface hoar from Jan 6 in sheltered locations. Winds are forecasted to be moderate N on <br />Saturday which may create slab conditions. 
Winds have left the 30cm of storm snow from Wednesday relatively untouched &quot;so far&quot;. It remains low density which causes sluffing and picking up significant mass in some cases to be a concern especially if terrain traps are involved. 
Up to 50 cm of settled storm snow and moderate SW winds have created storm slabs on a weak facet layer. Whumphing and cracking was observed in the field, so skier triggering is still possible. Tree-line elevations seemed to be the most touchy.
A persistent weak layer down 50 to 70cm is reactive to skier triggering. Our observations suggest the most reactive locations are steep S/SW facing slopes and open glades. Strong south winds may have created harder wind slabs at and above treeline.
Today, a field team observed whumphing and cracking at tree-line elevations where wind had created soft slabs. These slabs felt touchy on these specific, wind-affected areas. Human-triggering is still possible, given the right load on the sweet spot.
Last Wednesday's 30cm storm is rapidly evolving into a windslab with the influence of alpine winds. This may cover a buried surface hoar from Jan 6 yet its remained unreactive. Minor whumphing and upside down powder was noted today in the alpine. 
Where the wind has not affected the snow, 30cm of unconsolidated storm snow is sluffing out of steep terrain. They can pick up enough mass to be a concern to skier and climbers particularly when terrain traps are involved.
A cohesive slab overlies a persistent weak layer. Variable distribution and composition makes this layer difficult to predict. Tests on this layer indicate it is skier triggerable and observations indicate it is most reactive on steep S'ly aspects.
Cold temperatures is keeping the surface snow loose, especially on slopes sheltered from the wind. On steep slopes, this surface snow will sluff. On steep confined features (ie gullies) they may gain mass.
Wednesday's 30cm storm has evolved into a windslab on a variety of aspects. This may cover a buried surface hoar from Jan 6 yet its remained unreactive or stubborn. Minor whumphing and cracking was noted on Saturday in the alpine. 
Where wind has not affected the slope, 30cm of cold unconsolidated snow is sluffing out of steep terrain. They have been observed to pick up enough mass to be a concern to skier and climbers particularly when terrain traps are involved.
This layer is a sleeper and still needs careful consideration.
A cohesive slab overlies a persistent weak layer. Variable distribution and composition makes this layer difficult to predict. Tests on this layer indicate it is skier triggerable and observations indicate it is most reactive on steep S'ly aspects.
Upper level winds from the N have created windslabs on S-SE slopes in the high alpine. Winds around 2000m are from the south, loading N-NE slopes. Watch for windslabs in the alpine; if triggered they may step down to the persistent slab.
Last week's 30cm storm has produced new wind slabs on a variety of aspects. These slabs are resting on a surface hoar layer (Jan6) that is fairly widespread yet remains stubborn to triggers. Rapid warming will make these slabs easier to trigger.
Where wind has not affected the slope, 30cm of cold unconsolidated snow is sluffing out of steep terrain.  Solar input and warming temps are expected to increase the frequency of these natural avalanches.
The recent storm snow has mostly settled, which subsequently has created the problem of persistent slabs. Although there has been little recent avalanche activity concerning this problem, there is still potential.
W and NW winds have been creating slabs near ridge lines over the past few days. A few natural avalanches have been seen that are 10-30cm deep. Feel for changes in the upper snow pack as you enter open areas. A small slab may trigger a deeper one.
A cohesive slab overlies the January 4 persistent weak layer. Variable distribution and composition makes this layer difficult to predict.  It is most reactive on steep solar aspects.  There have been two skier triggered slides on this layer.
Upper level winds from the N have created wind slabs on S-SE slopes in the alpine. Winds around 2000m are from the south, loading N-NE slopes. Watch for windslabs in the alpine; if triggered they may step down to the persistent slab.
Recent wind loading have created new wind slabs, predominantly in the alpine. They will certainly be reactive to riders and climbers.
Beware of open areas at tree-line. Surface hoar is well preserved in sporadic locations. See picture from our Vermillion study plot.
Significant new windslab formation and loading observed today with the arrival of intense NW winds at upper elevations. Once triggered, these events are stepping down to ground.
Surface instabilities such as loose snow and new windslabs are stepping down to ground, which means a small  avalanche has the ability to become&nbsp; large very quickly.
Wind transported snow is triggering point releases, most commonly out of steep and rocky terrain.
The January 4 crust-facet interface (down 60 cm) remains a concern.  It is most problematic on steep S and W aspects.  The slab above this is becoming more cohesive, and skier triggering remains likely.
Strong SW winds combined with very mild temperatures in the alpine (0 degrees over night at 2000m) are contributing to wind slab development.  Lee and cross-winded features (NE aspects) will be most loaded, however all aspects are suspect.
Recent wind loading have created new wind slabs, predominantly in the alpine. They will certainly be reactive to riders and climbers.
Beware of open areas at tree-line. Surface hoar is well preserved in sporadic locations. See picture from our Vermillion study plot.
Slabs have formed on a variety of aspects from moderate to strong winds (with extreme gusts).  This condition is more prevalent with increasing elevation.
Surface instabilities such as loose snow and new windslabs  may step down to ground, which means a small avalanche has the ability to become large very quickly.  This will occur more likely in shallow snowpack areas.
Strong SW winds combined with very mild temperatures in the alpine (0 degrees at 2000m for 2 days) are contributing to wind slab development.? Lee and cross-winded features (NE aspects) will be most loaded, however all aspects are suspect.
The January 4 crust-facet interface (down 60 cm) remains a concern.? It is most problematic on steep S and W aspects.? The slab above this is becoming more cohesive, and skier triggering remains likely.
Recent wind loading have created new wind slabs, predominantly in the alpine. They will certainly be reactive to human loads. A natural size 2 was observed at Bow Summit yesterday. The ensuing strong winds reloaded the slope in a couple of hours.
Beware of open areas at tree-line and below tree-line. Surface hoar is well preserved in sporadic locations. In wind-loaded areas, it may be buried deeper, creating a thicker slab to avalanche.
Hard and soft slabs continue to build on a variety of aspects from moderate to strong winds.  Natural slab avalanches have initiated on the surface hoar layer and then stepped down to either the basal facets or the November rain crust.
Wind slabs and loose snow avalanches have triggered this weakness.  These avalanches have gained significant mass as a result. This situation will more likely occur in shallow snowpack areas.
Use caution if you encounter wind slabs near ridge crests or in steep loaded terrain.  These are generally easy to spot at this time. 
With the recent NW winds and snow these have grown quickly and are now quite fragile.  Be especially cautious of cornice failures with warm temperatures and sun.
Strong SW winds combined with very mild temperatures in the alpine (0 degrees at 2000m for 2 days) are contributing to wind slab development. Lee and cross-loaded features will be most loaded, however all aspects are suspect.
The January 4 crust-facet interface (down 60 cm) remains a concern. It is most problematic on steep S and W aspects. The slab above this is becoming more cohesive, and skier triggering remains likely.
Hard to soft wind slabs have developed on lee aspects.  Numerous full depth natural slab avalanches have been observed on thin, steep, lee slopes in the alpine.  Wide propagations can be expected.
Wind slab avalanches primarily in the alpine, have triggered this weakness. These avalanches have gained significant mass as a result. This situation will more likely occur in shallow snowpack areas.
The warm temperatures and continued settling seems to be helping the recent wind slabs bond to the various underlying surfaces. These slabs have become stubborn to trigger, but human triggering is still possible.
Jan 6 layer could be a failure plane in areas with enough load or on the right slope (steeper unsupported features).  May still need a little more load for this layer to become more reactive.&nbsp; Dig down &amp; check for surface hoar (kootenay, sunshine).
Sustained southerly winds have been loading lee and cross-loaded slopes and creating touchy windslabs. They have been human triggered, often fracturing above the skier. Be especially cautious approaching breaks in terrain and convex roles.
A persistent layer down ~40cm remains a concern. It has been most reactive on steep, solar aspects and produced several skier triggered avalanches last week. Human triggering is still possible, or windslabs may step down to this layer.
Wind slabs have developed on a variety of lee aspects overlying a buried surface hoar in locations from Jan 6th. Avalanches have been observed on thin, steep, lee slopes in the alpine some with wide propagations or stepping down.
Wind slabs avalanches have triggered this weakness thus gaining significant mass. This situation will more likely occur in shallow snowpack areas. Less activity today due to cooler temperatures but expect some steep slopes remain primed. 
Wind slabs to pencil stiffness are possible to trigger in steeper terrain.  These are becoming more stubborn to initiate as warm temperatures bond these to  the surfaces below.  Caution where these sit over facets in thin snowpack areas.
Sustained southerly winds have been loading lee and cross-loaded slopes and creating touchy windslabs. They have been human triggered, often fracturing above the skier. Be especially cautious approaching breaks in terrain and convex rolls.
A persistent layer down ~40cm remains a concern. It has been most reactive on steep, solar aspects and produced several skier triggered avalanches last week. Human triggering is still possible, or windslabs may step down to this layer.
Extreme winds have developed hard wind slabs on a variety of lee aspects. It sporadically overlies a buried surface hoar from Jan 6th. Natural avalanches were initially observed on thin, steep, lee slopes in the alpine but now subsided.
Initiating the surface slab can trigger this deeper weakness. This will more likely occur in shallow snowpack areas. Less activity last 2 days due to cooler temperatures but expect some steep slopes where human triggering remains possible. 
Watch for wind hard slabs in the alpine. They are susceptible to human triggering.
Mild alpine temperatures and clear skies will increase the hazard on sun affected slopes. Be mindful of overhead hazards like cornices that may fail with heat and rocky outcroppings where loose avalanches originate.
South winds from earlier in the week had affected much of the tree line and alpine. Wind slabs may still react to skier triggering and may be weakened with warming temperatures.
A persistent layer down ~40cm remains a concern. It has been most reactive on steep, solar aspects and produced several skier triggered avalanches last week. Human triggering is still possible.
Last week's extreme winds have developed hard wind slabs on lee aspects. It sporadically overlies a buried surface hoar from Jan 6th. Avalanches were initially observed on thin, steep, lee slopes in the alpine but activity subsided since Friday.
Initiating the surface wind slab can trigger this deeper weakness. This situation will more likely occur in shallow snowpack areas. Less activity since Friday due to cooler temperatures but expect human triggering remains possible on steep slopes.
Wind slabs are present in many areas at tree line and above. In most places these have bonded well to the underlying snow. Watch out for places where the wind slabs are sitting on a weak layer of soft snow by probing frequently with your poles.
Touchy wind slabs that are reactive to human triggering exist in the alpine. See avalanche discussion.
Mild alpine temperatures and sunshine will weaken the upper snowpack on steep solar aspects. Moist snow is a good indicator of this.  Watch for overhead hazards like cornices and rocky outcroppings where loose avalanches originate.
Evidence of wind slabs still lingers in the alpine. Caution at ridge crests and on cross loaded features.
A persistent layer down ~40cm remains a concern. It has been most reactive on steep, solar aspects.
Touchy wind slabs that are reactive to human triggering exist in the alpine. See avalanche discussion.
Recent wind effect has destroyed most of the surface snow and left hard slabs which could be triggered from shallow snowpack areas. Watch for steep and unsupported areas of windloaded snow.
The lower depths of the snowpack are slowly facetting and becoming weaker, especially in shallow areas. Choose the deeper snowpack areas for your travel.
Evidence of wind slabs still lingers in the alpine. Caution at ridge crests and on cross loaded features.
A weak layer down around 50 cm remains a concern. It has been most reactive to rider triggering on steep slopes where a sun crust is present.
Variable wind slabs are prevalent , and will be most likely triggered from shallow snowpack areas propagating into thicker snowpack areas on facets.
Recent wind effect has destroyed most of the surface snow and left hard slabs which could be triggered from shallow snowpack areas, or in isolated steep pockets of windloaded snow.
The lower depths of the snowpack are slowly facetting and becoming weaker, especially in shallow areas. Choose the deeper snowpack areas for your travel.
30cm of new snow has created storm slabs. These can be triggered by riders especially in steep terrain. Watch for wind effected snow on north/northeast slopes in open areas at treeline and in the alpine. Snow will be sluffing in steep treed terrain.
A weak layer down around 65-90 cm might still be reactive to skier triggering. No natural avalanches have been observed on this layer recently. New snow overnight may overload this layer, causing it to fail with the additional weight of a rider.
Soft wind slabs up to 30cm thick have formed mainly along and W of the divide. Expect to find these near ridge top which may not bond well in the short term to hard slabs below.
Hard slabs are possible to trigger from thinner snowpack areas on facets in steeper terrain.  These have been mainly unreactive in the last 48 hours but are still a concern.
Hard slabs are widespread and present the only real problem in the snowpack. Although it seems unlikely, it could be possible to trigger an avalanche in a steep pocket with a hard slab. Mostly these slabs are bridging any weakness underneath.
New wind slabs will continue to form over the next few days with flurries and moderate to strong W winds.  Probe for these with your poles and avoid steep or unsupported terrain where wind slabs exist especially if they overlie sun crusts or facets.
45cm of new snow has created storm slabs. These can be triggered by riders especially in steep terrain. Watch for wind effected snow on north/northeast slopes in open areas at treeline and in the alpine. Snow will be sluffing in steep treed terrain.
A weak layer down around 80-100 cm might still be reactive to skier triggering. No natural avalanches have been observed on this layer recently. New snow overnight may overload this layer, causing it to fail with the additional weight of a rider.
Hard slabs are widespread and present the only real problem in the snowpack. Although it seems unlikely, it could be possible to trigger an avalanche in a steep pocket with a hard slab. Mostly these slabs are bridging any weakness underneath.
Soft wind slabs up to 40cm thick have formed mainly along and W of the divide in exposed terrain.  Areas E of the divide have seen light snow and only very thin slab formation. Watch for the bond between these slabs and the hard surfaces below.
These hard slabs have been unreactive in the last few days.  Triggering is still possible from thin snowpack areas in steep terrain where these sit over facets.
45cm of new snow has created storm slabs. These can be triggered by riders especially in steep, unsupported terrain. Watch for wind effected snow on north/northeast aspects at treeline and in the alpine. Be cautious of sluffing in steep terrain.
Soft wind slabs up to 40cm thick exist mainly along and W of the divide in exposed terrain. Areas E of the divide have seen light snow and only very thin slab formation. Watch for the bond between these slabs and the hard surfaces below.
Hard slabs are widespread and present the only real problem in the snowpack. Although it seems unlikely, it could be possible to trigger an avalanche in a steep pocket with a hard slab. Mostly these slabs are bridging any weakness underneath.
Recent storm snow is settling into a more cohesive slab. Watch for wind effect on north/northeast aspects. Surface hoar below 1800m was observed in some drainages now buried down 40cm, this may become more reactive with settlement.
The new snow that is forecasted to arrive will further develop the existing wind slabs that are located in alpine lee areas. Expect these wind slabs to be up to 40cm in isolated areas by Wednesday.
Hard slabs are widespread and present the only real problem in the snowpack. Although it seems unlikely, it could be possible to trigger an avalanche in a steep pocket with a hard slab. Mostly these slabs are bridging any weakness underneath.
Storm snow continues to settle into a more cohesive slab. 50cm sits on a sun crust on steep south and west aspects and over surface hoar below 1800m. Wind effect on north and east aspects may exist.
Up to 10 cm of light snow overnight will sluff easily in sufficiently steep slopes. Caution over terrain traps like cliffs and gullies.
Hard windslabs can be found on a variety of aspects in the alpine and are generally very stubborn to trigger. 
Isolated soft slabs have developed in lee terrain near ridge tops.
Hard slabs from last weeks winds persist (beneath recent storm snow) in alpine and treeline terrain. These slabs are unreactive to skier triggering, but  whomphing  and compression tests in the moderate range are being observed on this layer.
Skiers in steep terrain should expect sluffing: slow but gain mass fast. This can be more serious where the old snow surface is very hard and it is difficult to hold an edge. Avoid confined features, pull off to the side, and do not ski above others.
Isolated windslabs can be found near exposed ridgecrests. These may be buried in places by a few cm. Probe for these with your poles and avoid steep or unsupported terrain where wind slabs exist especially if they overlie sun crusts or facets.
These are large and appear to be quite fragile right now. Consider the loose snow or windslab avalanches these could trigger below them and manage your exposure accordingly. Particular caution as these experience rapid temperature changes Wednesday.
Storm snow continues to settle into a more cohesive slab. 50cm sits on a sun crust on steep south and west aspects and over surface hoar below 1800m. Wind effect may exist near ridge tops.
40 to 50cm of light storm snow will sluff easily in sufficiently steep slopes. Caution over terrain traps like cliffs and gullies.
Hard windslabs can be found on a variety of aspects in the alpine and are generally very stubborn to trigger.?
Forecasted strong NW winds will create soft and hard slabs in areas where there is sufficient new snow to blow around (mainly in the southern and western parts of the forecast region).
Hard slabs from previous high winds have been buried by recent storm snow. These slabs have been unreactive to skier triggering, but new wind loading may awaken them.
Rising winds overnight and lots of deep soft snow available for wind transport will create storm/wind slabs at treeline and in the alpine. Be aware of soft slab formation in the lee of features at ridgelines. These soft slabs are running end fan. 
50 to 70cm of light storm snow will sluff easily in steep terrain. Use caution near terrain traps like cliffs and gullies.
Isolated wind slabs in steep terrain features may be human triggered or run naturally with slight additional loading.
Hard slabs from previous high winds have been buried by recent storm snow. These slabs have been unreactive to skier triggering, but new wind loading may awaken them.
Hard windslabs can be found on a variety of aspects in the alpine and are generally very stubborn to trigger. New thin wind slabs are forming in exposed areas above treeline with recent flurries.
Over 24 hours of strong winds at treeline and in the alpine have formed easy to trigger windslabs. Be cautious near ridges or other areas where the wind may have formed slabs. Watch for shooting cracks as a sign for soft slabs.
Strong winds in the last 24hrs and lots of deep soft snow available for wind transport have created storm/wind slabs at treeline and in the alpine. Be aware of soft slab formation in the lee of features at ridgelines.
50 to 70cm of light storm snow will sluff easily in steep terrain. Use caution near terrain traps like cliffs and gullies.
Isolated wind slabs in steep terrain features may be human triggered or run naturally with slight additional loading.
Hard slabs from previous high winds have been buried by recent storm snow. These slabs have been unreactive to skier triggering, but new wind loading may awaken them.
Hard windslabs can be found on a variety of aspects in the alpine and are generally very stubborn to trigger. New thin wind slabs are forming in exposed areas above treeline with recent flurries.
Skier triggerable slabs exist throughout the park. Recent strong southerly winds have loaded northerly aspects. Avoid lee and cross-loaded terrain near ridges where the wind has deposited firm snow.  Watch for shooting cracks as a sign of soft slabs.
Isolated wind slabs in steep terrain features may be human triggered or run naturally with slight additional loading. Warmer temp's on Saturday will initially weaken the bond of these slabs to the underlying snow.
Hard slabs from previous high winds have been buried by recent storm snow. These slabs have been unreactive to skier triggering, but warm temp's or new wind loading may awaken them.
Hard windslabs may be triggered from thin snowpack areas.  Thin wind slabs are forming in immediate lee areas above treeline with continued moderate to strong Northwest winds.
Windslabs can be found near exposed ridgecrests and in alpine features such as gullies, bowls and fans. Watch for cracking around your skis and probe with your poles to detect these. Avoid steep or unsupported terrain where windslabs exist.
These are large and appear to be quite fragile right now. Consider the windslab avalanches these could trigger below them and manage your exposure accordingly. Watch for sunny periods that may intensify the heating process and cause failure.
Skier triggerable slabs exist throughout the park. Recent strong southerly winds have loaded northerly aspects. Avoid lee and cross-loaded terrain near ridges where the wind has deposited firm snow. Watch for shooting cracks as a sign of soft slabs.
Use caution on solar facing terrain when the sun is out. Especially this afternoon.&nbsp; Watch for loose avalanches triggered from hot spots, like trees and rocks.
Hard windslabs may be triggered from thin snowpack areas.  Thin wind slabs are forming in immediate lee areas above treeline with continued moderate to strong Southwest to Northwest winds.
Isolated wind slabs in steep terrain features may be human triggered in thin, weak areas or run naturally with additional loading (cornices). Several recent cornice falls indicate it is time to start watching the big, fat snow-rolls at ridge top.
Moderate to strong winds over consecutive nights have produced wind slabs at higher elevations. Pay close attention to changing snow conditions as you travel from sheltered to more exposed areas.
Hard windslabs may be triggered from thin snowpack areas. Thin wind slabs are forming in immediate lee areas above treeline with what little snow is available and continued moderate to strong Southwest winds.
This winter we have experienced multiple wind slab events. Currently fresh wind slabs are quite touchy, but vary in thickness (20-40cm). In addition to surface wind slabs, older hard wind slabs lurk beneath the surface, but are harder to trigger.
Strong south winds have come with new snow and are remaining steady. Caution on lee slopes. Previous wind slab is newly buried as is a sun crust on solar aspects.
Hard persistent windslabs may be triggered from thin snowpack areas. Thin wind slabs are forming in immediate lee areas above treeline with the small amount of new snow.
Strong wind has promoted the development of wind slabs even further today. Expect these new wind slabs to be touchy. In addition to surface wind slabs, older hard wind slabs lurk beneath the surface, but are harder to trigger.
Wind slabs will continue to form with light snow fall and moderate to strong West winds over the next few days.  Probe for these with your poles and dig down to check the bond with previous surfaces before committing to steep terrain.
Reports of wind slab, 20 to 45cm deep, reactive to rider testing yesterday from sustained moderate to strong south winds for the past 3 days. Caution on lee and cross loaded slopes.
Hard persistent slabs up to 30cm thick are widespread above treeline and appear to be mostly unreactive.  Thin wind slabs may be found in immediate lee areas above treeline with the small amount of new snow and may be touchy.
Wind loading of storm snow over the past 48 hours has created 20-40 cm thick slabs at and above treeline.  These are thicker on lee aspects, but are also a problem on solar (windward) aspects where they overly a crust.
Strong wind has promoted the development of wind slabs in the alpine and open tree-line features. There has been little natural avalanche activity with these new slabs, but human triggering is still possible, especially in thin, weak areas.
Hard persistent slabs up to 30cm thick are widespread above treeline and appear to be mostly unreactive.? Thin wind slabs may be found in immediate lee areas above treeline with the small amount of new snow and may be touchy.
Winds tapered off overnight, but the slabs that formed previously remain a concern.  Expect pockets of slab in lee features and near ridge crests.  Slabs will be thicker on lee aspects, but persist on solar (S + W) aspects over the Feb. 3 sun crust.
The hard windslabs that dominate the alpine snowpack have been unreactive lately.  It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and edges of these slabs. 
Wind slabs from recent strong winds persist in the alpine. In some areas these slabs are now covered by a light layer of new snow and may not be as obvious to see.  The area of most concern is lee terrain near ridge tops.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B"> </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
New wind slabs have formed in the last 48hrs. They seem to be bonding well but investigate them carefully before committing to steep terrain where the wind slabs are present, especially in areas with several layers of wind slabs from recent storms.
With forecast daytime warming and the possibility of strong solar effect with clear skies we may start to see more cornice failures which could trigger recent storm slabs and wind slabs.  Avoid traveling in terrain exposed to cornice failures.
Winds are back in the loading range, and the slabs that formed previously remain a concern. Expect pockets of slab in lee features and near ridge crests. These slabs may sit on a sun crust on S+W aspects.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and edges of these slabs.
Wind slabs from recent strong winds persist. In some areas these slabs are now covered by a light layer snow and may not be as obvious to see.  Areas of most concern are lee terrain near ridge tops and isolated treeline features East of the divide.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Steady SW winds have been transporting snow and triggering natural avalanches from steep lee slopes. Isolated pockets of wind slab will have formed immediately below ridgecrests.
2 layers, down ~40 and ~80cm, exist in isolated areas (see forecast details). They have been reactive to ski cutting on steep unsupported features in Rogers Pass, and in the surrounding region caused several human triggered size 2 avalanches.
Wind slabs from recent strong winds persist. In some areas these slabs are now covered by a light layer snow and may not be as obvious to see.? Areas of most concern are lee terrain near ridge tops and some open slopes at at treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Recent snowfall amounts vary depending on location. Reports from Shangri-La indicate as much as 10cm of new snow.  This new snow  is forming wind slabs that are sitting on the previous widespread hardslab and may be sensitive to light triggers.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and edges of these slabs.
Solar aspects are going get hit hard by the sun today. Natural avalanches are expected, particularly on steep slopes and around exposed rocks. It will also make skier triggering of the storm slab more likely. They may step down to a crust below.
Steady SW winds continue to transport snow and trigger natural avalanches from steep lee slopes. Isolated pockets of wind slab will have formed immediately below ridgecrests; most likely in serious terrain where a ride would have severe consequences.
Recent snowfall amounts vary depending on location. Reports from Shangri-La indicate as much as 10cm of new snow.? This new snow is forming wind slabs that are sitting on the previous widespread hardslab and may be sensitive to light triggers.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and edges of these slabs.
Wind slabs from recent strong winds persist. In some areas these slabs are now covered by a light layer snow and may not be as obvious to detect Areas of the most concern are steep lee slopes near ridge tops and some steep open slopes at treeline.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Steady winds continue to transport snow and trigger natural avalanches from steep lee slopes. Isolated pockets of wind slab will have formed immediately below ridgecrests; most likely in serious terrain where a ride would have severe consequences.
Last weeks snow has settled into a slab. The layers of concern below vary by aspect, but are most likely to be triggered on steep southerly aspects where buried crusts exist. The slab is stubborn to trigger but large avalanches are possible.
Up to 10cm of snow from recent flurries has been redistributed by moderate NW winds onto the Southeast aspect of terrain features. This soft slab could knock a person over in steeper terrain.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and  the edges of these slabs.
Forecasted light snowfall and strong westerly and northwesterly winds will create touchy wind-slabs in lee terrain in the alpine.
New wind slabs have formed in the last 48hrs. They were touchy yesterday with a couple of avalanches triggered by skiers immediately below the ridgecrests on N and E asp. Be cautious of lee slopes in steep terrain.
South facing slopes are starting to heat up with daytime warming. We may start to see more cornice failures which could trigger recent or buried wind slabs. Avoid traveling in terrain exposed to cornice failures.
Winds have remained in the moderate range and are forecast to increase with this incoming storm.
Forecasted light snowfall and strong westerly winds on Tuesday night will create fresh wind-slabs in lee terrain in the alpine.
Moderate to strong Southwest winds beginning today in the icefields will create windslabs from the 10 - 20cm snowfall expected overnight. This  will load lee terrain features.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and the edges of these slabs.
High to extreme S. winds have redistributed new snow onto lee slopes, creating hard and soft slabs in all wind affected areas.  At treeline, these slabs rest on a newly formed surface hoar layer (February 12). 
Moderate to strong W winds accompanied 10-30cm of new snow. This has created new windslabs in alpine and open tree-line lee features. Expect these slabs to be touchy for the next day or two.
Yesterday's frontal passage produced only sporadic snowfalls ranging from 3 to 12cm. This was redistributed by moderate to strong SW winds overnight and through most of today. Expect lee sides of terrain features to have soft slabs on them.
The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and the edges of these slabs.
Storm snow is easily triggered by skiers. It is still a soft slab in most places, but has the potential to propagate widely on a touchy layer of surface hoar.&nbsp; Below treeline, open glades may be very reactive.
The presence of hard wind slabs in the alpine is likely based on the high to extreme winds that affected the area in the past few days.&nbsp; While the nature and extent of these slabs is uncertain, it is wise to watch for them in wind exposed areas.
Strong W winds accompanied 10-30cm of new snow. This has created new windslabs in alpine and open tree-line lee features. Expect these slabs to be touchy for the next day or two, especially in the alpine.
Thin pockets of windslab can be expected below Northeasterly ridge lines.  These windslabs may be triggered on steeper slopes.
The hard windslabs that dominate the alpine snowpack have bridged weakness below.  These slabs have not been reactive. It may be possible to trigger an avalanche on steep unsupported terrain from thin areas and the edges of these slabs.
Currently the wind slabs appear to be bonding well but caution should be used in steep or unsupported terrain where these are present.  If the forecast snow arrives with gusty winds on Saturday, new wind slabs will form and the hazard will rise.
Storm snow is easily triggered by skiers. It is still a soft slab in most places, but has the potential to propagate widely on a touchy layer of surface hoar.  Below treeline, open glades may be very reactive.
The presence of wind slabs in the alpine is likely based on the high to extreme winds that affected the area in the past few days.  Expect to find them in wind exposed areas at treeline and in the alpine.
Wind and little new snow dominate the alpine landscape. On certain lee features this crust is thick enough to form a wind slab,  and it may be possible to trigger an avalanche on steep unsupported terrain from thin snowpack areas.
The snowpack in the alpine and at tree line consists of multiple wind laminated layers.  How the terrain has influenced the formation and character of these layers on a given slope is the main question to keep in mind while traveling.   
A touchy surface hoar layer is down 25-40cm. There have been human triggered avalanches on this layer daily. Avalanches are increasingly possible with new snow and rising winds today adding load, and mild temperatures making the slab more cohesive.
Soft windslabs formed on lee slopes above treeline last week from southerly winds. In wind-affected areas the recent storm snow will be more cohesive. These slabs overlay a touchy surface hoar layer and if triggered, avalanches may propagate widely.
Up to 20 cm of new snow will fall by Sunday afternoon.  Moderate W to NW winds will be building slab conditions.  These new storm slabs are sitting on smooth hard slab.  The bonding between these layers is uncertain.
There will be increasing load on the persistent slabs now buried by 15-20 cm on new snow.  There is a greater possibility that storm snow avalanches may be enough to trigger the persistent slab layer deeper in the snowpack.
A touchy surface hoar layer is down 35-55cm. Human (even tree bomb) triggered avalanches have occurred daily. Avalanches are increasingly possible with new snow and rising winds today adding load, and mild temperatures making the slab more cohesive.
Soft windslabs formed on lee slopes above treeline last week from southerly winds. In wind-affected areas the recent storm snow will be more cohesive. These slabs overlay a touchy surface hoar layer and if triggered, avalanches may propagate widely.
Up to 20 cm of new snow fell in the last storm. Moderate NW winds are pressing the new snow into soft slabs and building thin soft windslab on immediate lee features. These new storm slabs are sitting on smooth hard slab and sastrugi. 
Wind earlier in the week has created some ripe touchy cornices. Some older cornices are starting to cleave off as well.
There is still a real possibility of triggering a wind slab on the right slope. Steep unsupported slopes near ridgecrests are the most likely terrain and should be avoided.
A touchy surface hoar layer is down ~50cm. Human (even tree bomb) triggered avalanches have occurred daily. Avalanches are increasingly possible with new snow load and mild temperatures making the slab more cohesive.
Soft windslabs formed on the immediate lees of ridges above treeline. In wind-affected areas the recent storm snow will be more cohesive. These slabs overlay a touchy surface hoar layer and if triggered, avalanches may propagate widely.
Saturday's 20cm of snow is developing into a surface windslab on SE slopes. As the winds shift Southerly, slabs will build on NE-NW aspects. The new slabs are sitting on previously hard slab and sastrugi surfaces.
Recent low density snow has buried surface wind slabs. Although they are hard to trigger at the moment, they are hidden. Keep this in mind when exploring steeper alpine features. Also, ski conditions in the alpine today resembled dust on 'sastrugie'.
New slabs forming in exposed areas with SW winds. These are spotty and small right now but will grow in size and thickness with time. Monitor the texture of the snow as you move into open areas and avoid steep terrain where these slabs are present.
Sluffing occurs easily given terrain over 40 degrees. This will diminish as the storm snow settles and is likely to occur only on  shaded slopes following the solar heating on Feb 18. Manage your sluff and your group carefully.
The Feb 12 PWL is becoming more reactive as it matures.&nbsp; Skier triggered and natural avalanches have been increasing on this layer, with RB scores of 2, whole block.&nbsp; It is most reactive on solar aspects between 17-1900m.
Soft windslabs formed on the immediate lees of ridges above treeline. In wind-affected areas the recent storm snow will be more cohesive. These slabs overlay a touchy surface hoar layer and if triggered, avalanches may propagate widely.
Saturday's 20cm of snow  has evolved into a surface windslab and appears to be bonding well. They sit on a variety of surfaces such as previously smooth hard slab and sastrugi surfaces. 
Low density snow has buried wind slabs that were formed last week. Keep this in mind while exploring alpine features.
A &quot;persistent weak layer&quot; (Feb 12 SH) is now down 50-60 cm from the surface, and is sporadically reactive to skier triggering.  Wide propagations are possible, especially on sunny aspects where it sits on a sun crust, between 17-1900m.
Wind slabs persist in lee loaded features near ridge crests and roll-overs.  These have the potential to step down to the Feb 12 PWL, creating larger avalanches in specific terrain features.
Saturday's 20cm of snow  has evolved into windslab that appears to be bonding well. These slabs sit on a variety of surfaces such as previously hard slab and sastrugi.
The recent storm snow has started to settle. On average, this amounts to about 10cm. Additionally, wind slabs, both hard and soft, still linger in alpine lee areas.
Cornices seem particularly ripe at the moment. Bigger cornices above start zones have the potential to fail and rake out the faceted snowpack, creating large avalanches. Keep in mind what is looming over your head
A &quot;persistent weak layer&quot; (Feb 12 SH) is down 50-60 cm from the surface, and remains sporadically reactive to skier triggering.  Wide propagations are possible, especially on sunny aspects where it sits on a sun crust, between 17-1900m.
Wind slabs persist in lee loaded features near ridge crests and roll-overs.  These have the potential to step down to the Feb 12 PWL, creating larger avalanches in specific terrain features.
Saturday's 20cm of snow has evolved into a variable windslab and appears to be bonding well. It sits on a variety of surfaces such as previously hard slab and sastrugi.
New wind slabs will be forming with forecast snow Friday afternoon, watch locally for building sensitivity to triggering.
Steeper slopes and gullies in the alpine will slough easily with any new snow load and wind over the already present facets.  Ice climbers should monitor this closely.
Cornices triggered facet avalanches on Wednesday, see avalanche discussion
Slabs are continuing to form in exposed areas with SW winds. These are growing in size and thickness with continued precipitation. If the snow arrives Friday as forecast these slabs could build to 1m thick on north and east lee slopes in the alpine.
A weak layer is down 40-50cm. It is most likely to be skier-triggered around 17-1900m, avoid open slopes and convex rolls. On sunny aspects the weak layer can be touchy.  Natural avalanche activity will increase on this layer today with the new snow.   
Wind slabs persist in lee loaded features near ridge crests and roll-overs. Strong winds today will rapidly change conditions in the alpine and open areas at treeline today.
Saturday's 20cm of snow has evolved into a variable windslab and appears to be bonding well. It sits on a variety of surfaces such as previously hard slab and sastrugi.
With the potential of this new snow load and winds Friday evening, expect increase in activity until has had few days to stabilize. 
Wind slab formation, especially near ridge tops has been noted by a team on the Wapta. Expect these to be touchy within the next 24 hours.
Expect sloughing in steep gully terrain.  Ice climbers should monitor this closely.
Cornices can provide the big trigger and entrain new wind slabs and underlying facets.  Some of these cornices have been easily triggered in the last week.
New snow has created touchy conditions.  Skiers could trigger avalanches today.  Use caution in steep terrain.  Watch for slab formation where wind has deposited firmer snow.  Cracking around skis is a clue slabby conditions are present.
February 16th 20cm of snow evolved into a variable thickness windslab. It sits on a variety of surfaces and aspects. Will be found wind-pressed and thinner on windward aspects and thicker and denser on lee aspects. Overall its firm and supportive.   
Soft slabs in the high alpine are developing with the recent snow and winds. The next system late tomorrow could create further wind slabs. Expect these to be touchy within the next 24 hours.
Expect sloughing in steep gully terrain. A field team in Kootenay noted large enough sloughs to knock a person around. Ice climbers should monitor this closely.
Cornices can provide the big trigger and entrain new wind slabs and underlying facets. Some of these cornices have been easily triggered in the last week.
Moderate to strong overnight winds with new snow available to be moved by it has created wind slab at the higher elevations. Evidence of wind affect was also seen in open areas below tree line.
Moderate to strong winds from all directions in the icefields continue to scour and redistribute any snow available in the area. New windslabs may develop in unexpected locations on terrain features and ridgetops.
Moderate to strong South wind today is building slabs in lee areas (yes...again). Slab thickness and sensitivity will be variable depending on the local area.
20cm of low density snow over the last 48hrs will produce fast sluffing is sufficiently steep terrain. With enough mass this may trigger the deeper instability.
New snow has buried previous wind slab in the alpine. Look for a stiffer slab beneath the fresh at higher elevations. Winds are forecast to pick up creating new slabs.
Expected snowfall has been reduced to light snow flurries redistributed to Easterly aspects by light to moderate Westerly winds. This just adds another thin windslab over previous hard and soft windslabs on lee sides of terrain features.
Moderate to strong S and W winds yesterday created slabs in lee areas. Slab thickness will range from 5 - 50 cm depending on how much new snow was available for transport. These slabs were unreactive today in the Lake Louise backcountry
In steep wind loaded terrain it may be possible to trigger the recent wind slabs.  These are present near ridge crests at tree line and in open areas above tree line.  Assess these spots carefully and avoid them if in doubt.
Instabilities in the upper 50cm from the recent storm snow.
Solar radiation from forecast sunny breaks may trigger loose avalanches. Caution below rocky outcroppings and watch the overhead cornice hazard. With enough mass these may trigger the deeper instability.
The snow surface consisting of earlier windslabs may be covered by light snow flurries with very little wind.  This is not expected to add any real load to the snowpack in the next few days. More snow may be forthcoming into the weekend.
Recent moderate to strong S and W winds have created fresh wind slabs in lee areas in the alpine. Slab thickness will range from 10-30 cm. These slabs were unreactive in recent field tests but could produce avalanches up to Class 2.
Instabilities in the upper 50cm from the recent storm snow can step down to the Feb 12 surface hoar layer.
Recent SW winds have created fresh wind slabs, 10-30 cm thick. This layer was reactive to ski cuts today, but isolated to the immediate lee of the feature. 
The snow surface consisting of earlier windslabs may be covered by light snow&nbsp; accumulations. This does not add any real load to the snowpack.  However, more snow is expected for the weekend.
Instabilities in the upper 50cm from the recent storm snow can step down to the Feb 12 surface hoar layer.
The forecasted incoming warm snowfall may bond well to the current windslab layers at the snow surface. However, if there is significant snowfall and high winds, yet another slab will develop.
Soft and hard windslabs 10-60 cm thick exist in the lees of features.  Fresh slabs will form with the incoming storm and will likely be touchy.  This may overload existing wind slabs.  A natural avalanche cycle is likely over the next few days.
With additional precipitation, warm temperatures, and moderate to strong SW winds we expect new wind slabs to form and the hazard to rise over the next couple of days.  We may also see increased cornice failures with the warm temperatures.
Rapid loading by snow and wind is overloading the snowpack. Expect widespread natural avalanche activity, with large avalanches running into valley bottoms. Avalanches may step down to deeper persistent weak layers.
The warm, mild conditions with additional precipitation have increased the likelyhood of cornices failures and wind slab avalanches. These should start to stabilize with cooler temperatures on Sunday but should still be treated with caution.
Developing slabs overlie existing hard windslabs.  Visibility is poor, but we expect naturals to be occurring involving these layers.  In thinner snowpack areas, avalanches may scrub to ground, incorporate the weak snow and run further than expected.
  With the added load, cornices may fail and trigger slopes below.  Be mindful of over head corniced features.
The heavy snow combined with strong Southwest winds will build slabs on lee aspects.&nbsp;  These will be easy to trigger and will have enough load to perhaps step down into&nbsp; deeper weak layers in the snowpack.
60cm of heavy storm snow is settling with mild temps. Rapid loading yesterday triggered widespread large avalanches. The snowpack needs time to adjust to the new load and will still be touchy to human triggering.
Moderate to strong southerly winds continue to transport snow. This is loading lee slopes, overloading the snowpack and triggering large avalanches, as well as forming windslabs on exposed slopes. These areas will take even more time to stabilize.
The heavy snow combined with strong Southwest winds will build slabs on lee aspects.  More snow overnight will make these easy to trigger with  enough load to perhaps step down into deeper weak layers in the snowpack.
Another 20 cm overnight with strong winds will add to the avalanche danger. Avoid travel in avalanche terrain until the snow stabilizes with the cold front passage.
60cm of heavy storm snow is settling into a cohesive slab. Loading by wind and snowfall continues to trigger large avalanches. The snowpack needs time to adjust to the new load and will still be touchy to human triggering.
Moderate to strong southerly winds continue to transport snow. This is loading lee slopes, overloading the snowpack and triggering large avalanches, as well as forming windslabs on exposed slopes. These areas will take even more time to stabilize.
60 cm of storm snow over the last 48 hrs has created an unstable snowpack. North winds with the passage of the cold front have also loaded the normally windward aspects. Human triggering on steep slopes is likely. Avoid terrain over 30 degrees.
On Saturday, the heavy snow combined with strong Southwest winds built slabs on lee aspects. The overnight snow came in with almost no winds and warm temperatures which should bond well to the earlier storm snow.
Over 80cm of snow has fallen since Friday. Weak interfaces within the storm slab exist. The snowpack needs time to adjust to the new load. It will still be touchy to human triggering, and may step down to surface hoar below.
Moderate to strong southerly winds shifted to NE overnight. Winds have loaded lee slopes, triggered avalanches, built large cornices and formed fat pockets and windslabs on exposed slopes. These areas will take even more time to stabilize.
60 cm of recent storm snow has created unstable storm snow conditions. The natural cycle is over and cooler temperatures have tightened up the upper pack, however we still expect to see touchy storm slab conditions over the next few days.
The storm snow instability will persist until it has had time to settle. Winds and/or warm afternoons will build slabs on lee aspects.
The recent snow has formed a soft slab in isolated areas that can be triggered by light loads. As winds pick up these slabs will grow and become more widespread. Monitor for slabs as you travel and use caution in unsupported terrain.
Over 80cm of snow has fallen since Friday. Weak interfaces within the storm slab exist. The snowpack needs time to adjust to the new load. It will still be touchy to human triggering, and may step down to surface hoar below.
Wind slabs and large cornices have formed in the alpine.  Cornices are huge and should be given a wide berth.
As the sun peaks out and warms up the day, loose avalanches with significant mass are occurring with increased frequency. They are initiating out of steep W or S facing high elevation rocks or gullies.
The storm slabs remain soft in nature as winds have yet to firm them up. Soft slab conditions do exist on gully sidewalls and some large alpine slopes as Monday's explosive control work demonstrated. Watch for wind building slabs with this snow.
60 cm of recent storm snow has created unstable storm snow conditions. The natural cycle is over and cooler temperatures have tightened up the upper pack, however we still expect to see touchy storm slab conditions over the next few days.
The storm slab has settled considerably over the past 2 days, but remains a concern due to the potential for wide propagations and step-down to the Feb 12 PWL.  Solar aspects and lee pockets are of particular concern.
Cornices have grown very large and unsupported.  They are increasingly likely to fail, providing a trigger for large avalanches.  Northerly winds have created reverse loading in some areas.
As the sun peaks out and warms up the day, loose avalanches with significant mass are occurring with increased frequency. They are initiating out of steep W or S facing high elevation rocks or gullies.
The storm slabs remain soft in nature as winds have yet to firm them up. Soft slab conditions do exist on gully sidewalls and some large alpine slopes as Monday's explosive control work demonstrated. Watch for wind building slabs with this snow.
The storm slab has settled considerably over the past 2 days, but remains a concern due to the potential for wide propagations and step-down to the Feb 12 PWL. Solar aspects and lee pockets are of particular concern.
Cornices have grown very large and unsupported. They are increasingly likely to fail, providing a trigger for large avalanches. Northerly winds have created reverse loading in some areas.
The storm slab is becoming more cohesive as a layer and bonding to older surfaces. While this is good in areas of a deeper snowpack (west of the Divide), this will continue to create touchy slabs east of the Divide and in thin, weak areas.
As the sun peaks out and warms up the day, loose avalanches with significant mass are occurring with increased frequency. They are initiating out of steep W or S facing high elevation rocks or gullies.
The storm slabs remain soft in nature as winds have yet to firm them up. Soft slab conditions do exist on gully sidewalls and some large alpine slopes as Monday's explosive control work demonstrated. Watch for wind building slabs with this snow.
The new snow sluffs easily in steep terrain and will run fast and far over buried crusts. This will likely decrease over the next few days as it settles but in the meantime manage your group carefully especially in confined terrain.
The snow from the last two storms is forming a slab. Things are a bit touchier over crusts right now. Both heating and wind will encourage slab development over the next few days. Use caution in steep or unsupported terrain.
Over the last week warm moist  storms added significantly to already large cornices. One large cornice failure above Forum lake scoured the entire face to the lake. With the expected sunny days in the forecast keep these in mind.
The storm slab has settled considerably over the past 4 days, but remains a concern due to the potential for wide propagations and step-down to the Feb 12 PWL. Solar aspects and lee pockets are of particular concern.
Cornices have grown very large and unsupported. They are increasingly likely to fail, especially during periods of strong sun or warming, providing a trigger for large avalanches. Northerly winds have created reverse loading in some areas.
The storm slab seems to be bonding to older surfaces. West of the Divide, the storm slab is stubborn and harder to move, however slabs are still touchy east of the Divide where they overlie a weak, shallow, faceted snowpack.
Soft slabs are beginning to build along alpine ridgelines with moderate SW winds.  Otherwise, the storm slabs remain soft in nature as winds have yet to firm them up. Soft slab conditions also exist on gully sidewalls and some large alpine slopes.
As the sun peaks out and warms up the day, loose avalanches with significant mass are occurring with increased frequency. They are initiating out of steep W or S facing high elevation rocks or gullies.
Strong sunshine will trigger loose avalanches and make skier triggering more likely on solar aspects today. Solar triggered avalanches may step down to deeper layers, triggering large slab avalanches.
The surface hoar/crust layer from February is becoming less reactive; a function of it now being 1-1.5m deep and having avalanched in many areas. It is most likely to be triggered on solar aspects or by heavy triggers, resulting in large avalanches.
Cornices have grown very large and unsupported. Strong sun today will weaken them. Cornice failures are expected, and are in themselves a concern. Should these large loads trigger deeper layers, very large destructive avalanches are possible.
The storm slab seems to be bonding to older surfaces. West of the Divide, the storm slab is stubborn and harder to move, however slabs are still touchy east of the Divide where they overlie a weak, shallow, faceted snowpack.
Expect loose wet avalanches to occur with daytime heating.  Caution on or below any steep solar aspects as temperatures warm up during the day. 
With the recent snow, increasing winds and mild temperatures cornice failures are a greater concern right now.  Avoid exposure to cornice threatened slopes especially with warm daytime temperatures.
With increasing W winds over the next few days we can expect more wind slabs near ridge crests and in open areas above tree line. Use caution when entering wind affected areas and evaluate the snowpack carefully before committing to steep terrain.
Moderate to strong Westerly winds will be forming wind slabs below lee ridgelines on Sunday.
The storm slabs remain soft where the wind has not firmed them up. Soft slab conditions also exist on gully sidewalls and some large alpine slopes.
If the sun peaks out, loose avalanches with significant mass may occur. They are initiating out of steep West or South facing high elevation rocks or gullies.
The surface hoar/crust layer from February is becoming less reactive; a function of it now being 1-1.5m deep and having avalanched in many areas. It is most likely to be triggered on solar aspects or by heavy triggers, resulting in large avalanches.
Storms slabs vary between 30 and 40cm thick. In areas East of the divide the bond at the storm snow interface is weaker than areas farther West.
Moderate to strong Westerly winds continue to form wind slabs below lee ridgelines  and terrain features through Sunday night.
The storm slabs remain soft where the wind has not firmed them up. Soft slab conditions also exist on gully sidewalls and some large alpine slopes.
If the sun peaks out, loose avalanches with significant mass may occur. They are initiating out of steep West or South facing high elevation rocks or gullies.
Sustained southerly winds overnight and 10-15cm of new snow have created wind slabs at higher elevations. Caution to the immediate lee of ridge features.
The surface hoar/crust layer from February is most likely to be triggered on solar aspects from shallow areas or from large triggers such as cornice falls resulting in large avalanches.
Last week's snow will continue to add to the wind slabs in the alpine and at treeline. Warming temperatures will increase the likelihood of triggering slopes.
Soft slab conditions  exist on gully sidewalls and some large alpine slopes. Warming temperatures will increase the chance of triggering avalanches at treeline elevations on southerly slopes.
If the sun peaks out, loose avalanches with significant mass may occur. They are initiating out of steep West or South facing high elevation rocks or gullies.
With warm temperatures, new snow and strong SW winds we expect to see wind slab and cornice development at tree line and above over the next few days.  These will be on a variety of crusts and storm snow interfaces and susceptible to skier triggering
With the forecast precipitation amounts, warm temperatures and strong SW winds you can expect natural and skier triggered storm slabs over the next few days on all aspects.  Lower elevations may also see moist or wet snow avalanches!
With more snow the potential for loose dry avalanches in steep terrain will increase.  Manage your sluffs carefully especially in confined terrain.  With warming temperatures these may quickly turn into more serious storm slabs.
Spotty wind slabs exist in the alpine up to 15 cm deep.
Storms slabs  (30-40cm thick) from last weeks storm persist in the alpine. Although the natural cycle has subsided these slabs still may be triggered by skiers in specific areas above treeline.
The surface hoar/crust layer from February is most likely to be triggered on solar aspects from shallow areas or from large triggers such as cornice falls resulting in large avalanches.
New storm slabs will be sitting on a variety of surfaces, from colder powder snow or sun crust at higher elevations depending on aspect, to rain crust 1800m and below. 
Strong to extreme W winds will be developing wind slabs on lee aspects and will be sensitive to human triggering.
At higher elevations, expect all gully features and exposed terrain to slough with the increased winds and new snow.  Steep terrain below treeline may slough far and fast.
Strong SW winds are building new windslabs at upper elevations. 
A storm overnight has brought 25-30 cm of new snow with strong winds and rising temperatures. This has formed avalanche conditions.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
The natural cycle is over and cooler temperatures have tightened up the upper pack, however we still expect to see touchy storm slab conditions over the next few days, especially in thin, faceted areas in the alpine.
Dense, very touchy storm slabs developed overnight with the new snow and warm temperatures. More snow is forecasted for the next 24 hours.
Strong W winds will be developing wind slabs on lee aspects and will be sensitive to human triggering.
30cm of new snow has fallen in the Icefields area in the past 24hrs. This snow has formed stiffer wind slabs in the alpine than at treeline. Near treeline the slabs are softer and less sensitive to triggering. Moderate shears were recorded at 2350m.
Quantities of loose snow plasters steep cliffy terrain which is often encountered in and around ice climbs. With sufficient volume there currently to produce sizable avalanches, and more on the way, you would do well to avoid this terrain.
A storm that started on Wednesday has brought 30-45cm of high density new snow with strong winds and rising temperatures. This has formed avalanche conditions.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
40-60cm storm slabs are poorly bonded to older surfaces. Touchy conditions at all elevations.
Strong W winds are developing wind slabs on lee aspects and will be sensitive to human triggering.
Currently a cycle of loose wet avalanches is occurring at all elevations in steep terrain.  This should decrease as temperatures cool by Saturday and the snowpack tightens up.  Until things cool down travel in avalanche terrain is not recommended.
At higher elevations on N aspects soft slabs are forming with continued moderate W winds.  We may see new slabs form over the next few days as freezing levels drop and new snow arrives.  Use caution when entering wind affected terrain.
70 cm of new snow has fallen in the Icefields area in the past 48hrs. This snow has formed stiffer wind slabs in the alpine than at treeline. Near treeline the slabs are softer and less sensitive to triggering. Moderate shears were recorded at 2450m.
Quantities of loose snow plaster steep cliffy terrain which is often encountered in and around ice climbs. With sufficient volume there currently to produce sizable avalanches, and more on the way, you would do well to avoid this terrain.
A storm that started on Wednesday has brought  40-60cm of high density new snow with strong winds and rising temperatures. This has formed avalanche conditions.
The surface hoar/crust layer from February is most likely to be triggered by large triggers such as avalanches triggered in shallower layers in the snowpack and cornice falls which will result in large avalanches.
40-60cm storm slabs are poorly bonded to older surfaces. Touchy conditions at all elevations.
Strong W winds are developing wind slabs on lee aspects and will be sensitive to human triggering.
Thick soft slabs are developing with continued moderate to strong SW winds.&nbsp; Slabs are thickest and most easily triggered just below ridgelines.&nbsp; Slab avalanches can possibly trigger large, full snowpack avalanches on thin snowpack slopes.
Quantities of loose snow plaster steep cliffy terrain which is often encountered in and around ice climbs. With sufficient volume there currently to produce sizable avalanches, and more on the way, you would do well to avoid this terrain.
More than 80 cm of new snow has fallen in the Icefields area since Wednesday.  This snow is settling to form soft slab conditions on sheltered alpine and treeline slopes.
Last weeks warm and wet storm rapidly deposited 50-60cm of heavy, moist snow at treeline. This was deposited on low density snow sitting on a crust and or surface hoar and is bonding poorly. At lower elevations, rain saturated the upper snow.
It will likely take a large trigger, like a cornice fall or another avalanche to trigger the surface hoar/crust layer from February down 1-1.5m. If triggered, however, the resulting avalanche would be very large and destructive.
Sustained S-SW winds have been forming windslabs on lee terrain above treeline. In these areas, deeper pockets of loaded snow will be more easily triggered.
Storm slabs 40-60cm thick are widespread at upper elevations.  Natural activity has tapered off, but these are still sensitive to human triggering.
Another 20 cm of snow is expected overnight, adding to the 80 cm that has fallen since  Wednesday.  This new snow will come in with light north winds and rest on previous wind slabs.  
There will be 20-50 cm of unconsolidated storm snow on and above ice climbs.  This snow will be susceptible to solar, wind and human triggering forming loose snow avalanches.  Quantities will be large enough to knock climbers off their route. 
Last weeks storm rapidly deposited 50-60cm of heavy, moist snow at treeline. This was deposited on low density snow sitting on a crust and/or surface hoar and is weakly bonded. At lower elevations, rain saturated snow will have refrozen.
It will likely take a large trigger, like a cornice fall or another avalanche to trigger the surface hoar/crust layer from February down 1-1.5m. If triggered, however, the resulting avalanche would be very large and destructive.
Sustained S-SW winds have been forming windslabs on lee terrain above treeline. In these areas, deeper pockets of loaded snow will be more easily triggered.
10-20 cm of snow arrived last night with steady strong N winds. 80-100cm cm has fallen since Wednesday. This was the first real wind and many slopes appear to have a soft slab at exposed treeline and alpine locations. Reverse loading occurred.  
There remains 20-50 cm of unconsolidated storm snow on and above local ice climbs.  This snow is susceptible to solar, wind and human triggering forming loose snow avalanches of significant mass.  Enough to knock climbers or skiers off their route. 
Recent storm snow has created a touchy slab condition in all open areas. Easy triggering of slabs is expected.
Cornices are very large and unstable due to recent loading and high humidity. Natural and human triggering is likely
A buried rain crust is providing an ideal bed surface for new snow avalanches below 2000m. There's around 30cm overtop and was really reactive yesterday to rider triggering with wide propagation, running far and fast.
Moderate south winds and new snow available for transport mean that you could expect windslabs on lee terrain above treeline.
It will likely take a large trigger, like a cornice or another avalanche to trigger the surface hoar/crust layer from February down 1-1.5m. The resulting avalanche would be very large and destructive if triggered.
Storm snow accumulations since last Tuesday have been 60-80 cm or more. Both northerly and westerly winds with the storms have created storm slabs on most aspects. Touchy conditions and potential for large avalanches persist.
The cornices are very large and touchy with recent high humidity and winds. Avoid lee slopes beneath them.
In shallower areas east of the divide deep slabs have been observed failing on the lower facetted snowpack
80-100cm cm has fallen since Wednesday with initially strong N winds that shifted to moderate Westerly. Slopes below ridgelines have a soft slab developing yet remains spotty. Many gullies were reverse loaded. Wind transport is occurring in alpine. 
There remains unconsolidated storm snow on and above local ice climbs. It is is susceptible to solar, wind and human triggering forming loose snow avalanches of significant mass. Enough to knock climbers or skiers off their line.
Moderate to strong winds are building windslabs on N &amp; E aspects at treeline and above.  Tuesday might be a bit of a break but with more snow forecast for Wed windslabs will continue to be a concern. Use caution when entering wind affected terrain.
Convective snow flurries with strong winds yesterday added load to the storm slab problem above treeline. Below 2000 meters, a buried rain crust is providing an ideal bed surface for new snow avalanches at lower elevations.
Moderate south winds and new snow available for transport mean that you could expect windslabs on lee terrain above treeline.  Cornices are growing larger.
100cm cm has fallen since March 13. Initially strong N winds reverse loaded many slopes but now has shifted to moderate Westerly. Soft slabs are developing below ridgelines yet remains spotty in many zones. Wind transport is occurring in alpine. 
There remains allot of unconsolidated storm snow available. It is is susceptible to solar, wind and human triggering forming loose snow avalanches of significant mass. Enough to knock climbers or skiers off their line particularly when its moist..
Another 8-10cm of snow overnight has added load to last weeks storm interface.  More snow, moderate winds and warm temps today will add to this problem, especially on solar aspects where buried suncrusts are providing good failure planes.
Isolated wind slabs in the alpine and near ridge crests surprised a few skiers yesterday.  These failures could break down to deeper instabilities.  Cornices are very large and unsupported.
Expect new soft slabs to develop tonight and expect some reverse loading onto South aspects towards the end of the storm.&nbsp; Existing storm and wind slabs are 30-80 cm thick  Tonight's storm will add stress to the underlying weaknesses.
In shallow snowpack areas, especially East of the divide, the storm snow and wind slabs overlie a weak faceted mid-pack.&nbsp; Avalanches triggered in this region may steep down to ground.
Many large cornices loom overhead in the region.  Be mindful of  overhead hazards, especially during strong solar periods or during/after recent snowfalls and wind loading.
Deep windslabs continue to develop.  Previous winds from the north and south will be replaced by gusty moderate west winds overnight.  Because of this loading pattern, expect slab conditions on a wide variety of aspects.
Multiple convective storms and frontal systems continue to add incremental load.  The reactivity of the storm slabs is variable.  We know that solar aspects are most reactive due to buried crusts, and north aspects received most load.
Isolated wind slabs in the alpine and near ridge crests have surprised a few skiers.  These failures could break down to deeper instabilities.  Cornices are very large and unsupported.
Windslabs continue to develop with 90cm of snow since March 13. North winds with the storm reverse loaded gullies and now steady moderate west winds load N and NE aspects. Expect slab conditions on a wide variety of aspects continuing to develop.
Slabs up to 60cm thick are slowly bonding to the old surfaces. These will be more sensitive to triggering from thinner areas East of the divide, but are present everywhere. Solar aspects over all regions will have these slabs sitting over sun crust.
We have been seeing activity on the basal facets East of the divide over the recent week.  One report of a sz. 3 remote triggered in the observation peak area. 
Some large diving boards have been seen to fail in the last few days which will be augmented this weekend with solar input.
Moderate West winds are building windslabs on N &amp; E aspects near ridge crests in open areas treeline and above. These slabs are currently thin and spotty near treeline but will be more developed above. We would expect these to settle quickly and bond
New snow is reactive to rider triggering.  Use caution in steep terrain and unsupported features.  Avalanches with large consequences may run on solar aspects. A sun crust is present down 30 cm.  Northerly aspects with wind loaded snow may be touchy.
Isolated wind slabs in the alpine and near ridge crests have surprised a few skiers. These failures could break down to deeper instabilities. Cornices are very large and unsupported.
The 90cm of snow since March 13 has generally melded with the snowpack making for a deep persistent slab. North and South winds have this present on a variety of aspects overlying weak basal facets. Cornice failures can trigger this in a big way.
Watch out for thin areas especially East of the divide where it is possible to trigger or remote trigger deep slabs on basal facets or crusts.  Be conservative with terrain choices in bigger terrain.
New windslabs have formed on lee aspects, much thicker West of the divide where more new snow has fallen. Up to 40cm was reported over the last few days in Yoho, followed by a wind event on the 21st. Crown depths of 60cm reported there, 
Isolated wind slabs in the alpine and near ridge crests have surprised a few skiers. These failures could break down to deeper instabilities. Cornices are very large and unsupported.
Last week's 90cm of snow has generally bonded with the snowpack.&nbsp; North and South winds produced a thick slab on a variety of aspects overlying weak basal facets. Cornice failures can trigger this in a big way.
Watch out for thin areas especially East of the divide where it is possible to trigger or remote trigger deep slabs on basal facets or crusts.? Be conservative with terrain choices in bigger terrain.
New windslabs have formed on lee aspects, much thicker West of the divide where more new snow has fallen.
There have been a number of cornice falls observed over the last week, some triggering deep storm slabs beneath. Be aware of what is above you.&nbsp;
Look up lots today and avoid slopes with cornices above them. Cornice failures are expected due to daytime warming or by people traveling along ridges. A section of cornice hurtling down slope is a real concern, it may also trigger slab avalanches.
It may take a while for temps to warm up today, but when they do loose avalanches are possible due to strong solar. This is especially likely on steep solar aspects and around cliff and rocky outcrops. Loose avalanches may trigger deeper slabs.
Isolated wind slabs in the alpine and near ridge crests have surprised a few skiers. These likely exist in steep, aggressive terrain where even a small avalanche could have severe consequences.
The March 13 90cm of snow has melded with the snowpack making for a deep persistent slab. North and South winds make it present on a variety of aspects overlying weak basal facets. Cornice failures can trigger this in a big way.
Cornices will become increasingly prone to failure as the days get warmer. They are a hazard in themselves plus their failure is a large trigger which may initiate large avalanches potentially running full path. Watch what's overhead. 
Watch out for thin areas especially East of the divide where it is possible to trigger or remote trigger deep slabs on basal facets or crusts.? Be conservative with terrain choices in bigger terrain.
New windslabs have formed on lee aspects, much thicker West of the divide where more new snow has fallen.
There have been a number of cornice falls observed over the last week, some triggering deep storm slabs beneath. Be aware of what is above you. 
Look up lots today and avoid slopes with cornices above them. Cornice failures are expected due to daytime warming or by people traveling along ridges. A section of cornice hurtling down slope is a real concern, it may also trigger slab avalanches.
Slopes receiving direct sun become more reactive during the day with warming. This is especially likely on steep solar aspects where buried crusts exist. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
Isolated wind slabs in the alpine and near ridge crests have surprised a few skiers. These likely exist in steep, aggressive terrain where even a small avalanche could have severe consequences.
In shallow snowpack areas, particularly east of the divide, whumphing is showiing that remote triggering or triggering is still a possibility. Lower angle well supported slopes are the best terrain choice.
The windslabs seem to have mainly settled, but smaller avalanches with high consequence are still possible in steep open terrain.
There have been a number of cornice falls observed over the last week, some triggering deep storm slabs beneath. Be aware of what is above you.?
This continues to be the main concern with last week's avalanche activity showing deeper slabs that  were sliding full depth on weak facets and in windloaded gully features on  predominantly Northeast through to Southeast aspects. 
Cornices will become increasingly prone to failure as the days get warmer.    A cornice failure could provide a heavy trigger for an avalanche on the slopes below.  Pay attention to what is above you and the temperatures during the day.
Wind slabs may be present in isolated locations at tree line and above.  In most places these wind slabs are bonding well to the surfaces below but assess this bond carefully before entering steep or committing terrain.
With mild temperatures forecast we may see cornice failures over the next several days.  These are large triggers and have the potential to create larger avalanches.&nbsp; Minimize your exposure to slopes with cornice hazard, especially when it is warm.
As the daytime temperatures rise we may see loose wet avalanches on steep solar aspects especially if dark objects like rocks and trees are present on the slopes.  Travel early on steep solar aspects and pay close attention to daytime temperatures.
Cornices are large and unsupported. Wide fluctuations in diurnal temperatures is likely increasing their fragility.  Ski tracks on the Sifton Traverse yesterday passed within arms reach of van-sized cornice chunks, with densities of ice.  Yikes!
Slopes receiving direct sun become more reactive during the day with warming. This is especially likely on steep solar aspects where buried crusts exist. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
In shallow snowpack areas, particularly east of the divide, whumphing has subsided.  However, recent avalanche activity from cornice falls and warm temperatures shows it is still a layer to be respected.
There have been a number of cornice falls observed over the last week, some triggering deep storm slabs beneath.&nbsp; Cornices are large at this time of year and have a higher potential to fall down on warm days.
This continues to be the main concern with last week's avalanche activity showing deeper slabs that were sliding full depth on weak facets and in windloaded gully features on predominantly Northeast through to Southeast aspects.
Cornices will become increasingly prone to failure as the days get warmer. A cornice failure could provide a heavy trigger for an avalanche on the slopes below. Pay attention to what is above you and the temperatures during the day.
The sun is warming the rocks on steep rock cliffs and gully features on Southerly aspects. Loose snow avalanches are starting in these features at all elevations later in the day. Cloud cover will determine if this occurs during the day.
Cornices are large and unsupported. Wide fluctuations in diurnal temperatures are increasing their fragility.  If the cornice doesn't get you, the resulting avalanche may.  Reports of cornice triggered slides to size 4.5 have been reported!
PWL's are becoming stubborn, but should not be discounted.  Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist, but northerly aspects are not immune.
Occurring in the afternoons,  activity has been mainly isolated to very steep slopes at treeline and below.  As freezing levels rise over the next few days, we should start to see more natural avalanches occurring in the alpine.
In shallow snowpack areas, particularly east of the divide, whumphing has subsided. However, recent avalanche activity from cornice falls and warm temperatures shows it is still a layer to be respected.
Cornice failures have increased in number as the freezing levels rise. They may trigger an avalanche, or be an avalanche themselves in couloirs.
This continues to be the main concern with last week's avalanche activity showing deeper slabs that were sliding full depth on weak facets and in windloaded gully features on predominantly Northeast through to Southeast aspects.
Cornices will become increasingly prone to failure as the days get warmer. A cornice failure could provide a heavy trigger for an avalanche on the slopes below. Pay attention to what is above you and the temperatures during the day.
The sun is warming the rocks on steep rock cliffs and gully features on Southerly aspects. Loose snow avalanches are starting in these features at all elevations later in the day. Cloud cover will determine if this occurs during the day.
Cornices are large and unsupported. Wide fluctuations in diurnal temperatures are increasing their fragility and very warm afternoon temps will make them weaker.  Cornice triggered large avalanches are possible. 
PWL's are becoming stubborn, but should not be discounted.  Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist, but northerly aspects are not immune.
Occurring in the afternoons, activity has been mainly isolated to very steep slopes at treeline and below.  Higher freezing levels Friday may bring more activity in the alpine.
In shallow snowpack areas, particularly east of the divide, whumphing has subsided. However, recent avalanche activity from cornice falls and warm temperatures shows it is still a layer to be respected.
Cornice failures have increased in number as the freezing levels rise. They may trigger an avalanche, or be an avalanche themselves in couloirs.
Large triggers such as cornice fall has triggered this weakness. We expect to see large avalanches on steep slopes with warm temperatures rising into the alpine and intense solar radiation.
Warm alpine temperatures will weaken the large cornices out there. Large loads have the potential to trigger the persistent slab weakness on loaded lee slopes.
Cornices are large and unsupported. Large swings in day/night temperatures increases their fragility. Very warm afternoon temps will make them weaker. Cornice triggered large avalanches are possible.
Buried weak layers are stubborn to fail, but should not be discounted. Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist.
As the daytime temperatures rise we may see loose wet avalanches on steep solar aspects especially if dark objects like rocks and trees are present on the slopes. Travel early on steep solar aspects and pay close attention to daytime temperatures.
With warm temperatures and clear skies in the forecast, expect continued  cornice failures. These are large triggers and have the potential to create larger avalanches.  Minimize your exposure especially during rapid warming as the sun comes out.
Wind slabs have developed in most open areas tree line and above. In most places these wind slabs are bonding well to the surfaces below but assess this bond carefully before entering steep or committing terrain.
Occurring in the afternoons, activity has been mainly isolated to very steep slopes at tree-line and below. Higher freezing levels this weekend may bring more activity in the alpine.
In shallow snowpack areas, particularly east of the divide, whumphing has subsided. However, recent avalanche activity from cornice falls and warm temperatures shows it is still a layer to be respected, especiallly on solar aspects
Cornice failures have increased in number as the freezing levels rise. They may trigger an avalanche, or be an avalanche themselves in couloirs.
Large triggers such as cornice fall can triggered this weakness. Large avalanches on steep slopes are possible as warm temperatures are expected in the alpine and solar radiation will be intense.
The sun will be strong again today. Avoid terrain traps, especially below treeline, where moist slides could pile up deeply. Solar triggered avalanches are most likely around exposed rocks and may trigger deeper slabs.
Cornices are large and unsupported. Large swings in day/night temperatures increases their fragility. Cornice triggered large avalanches are possible.
Buried weak layers are stubborn to fail, but should not be discounted. Slopes receiving direct sun become more reactive during the day with warming. This is most likely on steep solar aspects where buried crusts exist.
Occurring in the afternoons, activity has been mainly isolated to very steep southerly  slopes at tree-line and below. Higher freezing levels this weekend may bring more activity in the alpine.
Cornice failures have increased in number as the freezing levels rise. They have been  triggering some slab avalanches, or have enough mass themselves to be a significant avalanche.
Large triggers such as cornice fall can triggered this weakness on polar aspects. Large avalanches on steep south to west slopes are possible as warm temperatures are expected in the alpine and solar radiation will be intense.
Warm temps overnight didn't allow much of a freeze. The sun will quickly break down crusts, and solar triggered avalanches are expected. Get an early start and avoid terrain traps, especially below treeline, where moist slides could pile up deeply.
Cornices are large and unsupported. They are more likely to fail with solar warming, and may trigger deeper slabs.
Large triggers such as falling cornices can triggered this weakness on solar aspects. Large avalanches on steep south to west slopes are possible as warm temperatures are expected in the alpine and solar radiation will be intense.
Today there were many more loose wet and wet slab avalanches as the freezing level rose and there was less overnight freeze. Timing is critical to travel while crusts are intact and remember what may be happening in the sun above you.
Cornice failures have increased in number as the freezing levels rise. They have been? triggering some slab avalanches, or have enough mass themselves to be a significant avalanche. Be aware of what is over your head.
Warm temps overnight didn't allow much of a freeze. The sun will quickly break down crusts, and solar triggered avalanches are expected. Get an early start and avoid terrain traps, especially below treeline, where moist slides could pile up deeply.
Cornices are large and unsupported. They are more likely to fail with solar warming, and may trigger deeper slabs.
Both loose wet and wet slab avalanches have been observed on most solar aspects up to size three. Beware of sun exposed slopes after mid-day.
Cornice falls have been observed nearly every day. Some of these have been triggering slabs on the faces below. Many have run over usual travel routes.
With no refreeze overnight at 2100m, it will not take long for direct solar radiation to trigger avalanches on sunny aspects.
Cornices are large and unsupported. They are more likely to fail with solar warming, and may trigger deeper slabs.
Over the past several days a spring time isothermal cycle has resulted in numerous loose wet snow avalanches up  to Class 3  on steep solar aspects in the afternoon.
  Over the past several days a spring time isothermal cycle has produced numerous wet slab avalanches up to Class 3  on solar aspects in the afternoon.
Cornice falls have been observed nearly every day. Some of these have been triggering slabs on the faces below. Many have run over usual travel routes.
These heavy and unstable features can fall unexpectedly triggering deep large avalanches. These are commonly, but not exclusively,  found above east facing slopes at ridge top elevations.
With no refreeze overnight at 2000m, expect avalanche conditions where the snowpack is soft and isothermal.
Cornices are large and unsupported. They are weak from the warm temperatures, and if they fail, may trigger deeper slabs.
Depending upon the inputs of heat from rain or sun this activity can be expected everywhere. Travelers must carefully monitor surface conditions and be clear of slopes before crusts break. Use extra caution if there is moist snow over buried crusts.
With warm temperatures, solar heating, or rain to upper elevations cornice failures will occur. These are large triggers and have the potential to create larger avalanches. Minimize your exposure especially during rapid warming.
Shallow snowpack areas hold weak mid and lower layers. These areas will be more susceptible to failure with heating but have failed with large loads (such as cornices or loose avalanches) acting as the trigger.
These heavy and unstable features can fall unexpectedly triggering deep large avalanches. These are commonly, but not exclusively, found above east facing slopes at ridge top elevations.
Loose snow avalanches can still be expected on solar aspects with day time heating. Minimal freeze overnight means crusts are not as strong and will break down sooner in the day.
Wet snow slab avalanches are still a concern with day time heating. Moist snow under the crusts means that any slide triggered has the potential to step down to ground. Large avalanches are still possible. See forecast details.
With only a gentle refreeze overnight, expect avalanche conditions when daytime heating melts the crust, and the snowpack becomes soft and isothermal. Avalanches that trigger on a shallow crust can dig deeper into the isothermal snow and get bigger.
Cornices are large and unsupported. They are weak from the warm temperatures, and if they fail, may trigger deeper slabs.
Loose snow avalanches are still possible on solar aspects with day time heating. Monitor how well developed the crusts are in the morning and pay attention to how quickly the crusts are breaking down.
Wet snow slab avalanches are still a concern with day time heating. Moist snow under the crusts means that any slide triggered has the potential to step down to ground. Large avalanches are still possible. See forecast details.
With up to 20cm of new snow due tonight and tomorrow along with moderate SW winds we are anticipating soft storm slabs to be forming at upper elevations. Slab bonding is expected to be touchy on the current sun and temperature crusts.
These heavy and unstable features can fall unexpectedly triggering deep large avalanches. With snow and SW winds forecast the significants and impact of these features should not be overlooked.
Rain and heavy wet new snow will cause avalanche triggering in the upper layers of the snow pack. Avalanches that trigger on a shallow crust can dig deeper into the isothermal snow and get bigger.
Cornices are large and unsupported. They are weak from the warm temperatures, and the warm wet new snow. If they fail, they may trigger deeper slabs.
With little overnight freeze at lower elevations, watch for loose wet avalanches below treeline on all aspects, and solar aspects at treeline and above.
  This will be more prevalent at lower elevations due to lack of freeze, but if the sun pops out Saturday, there is the potential for deeper releases as the day warms up.  Cornices will act as an ideal trigger.
Touchy storm slabs have been reported Friday.  Check for the bond of any new  slabs to the surfaces below. This condition should improve over the new couple of days as freezing levels drop.
Additional snow coming overnight may provide the load to start a slide on this layer.  Slab bonding is expected to be touchy on the current sun and temperature crusts.  Expect to see this type of activity in steep rock gullies.
These heavy and unstable features can fall unexpectedly triggering deep large avalanches.  Pay attention to overhead hazards when selecting your up track  and your descent route.
Natural avalanches are possible with the current spring conditions. Avalanches that trigger on a shallow crust can dig deeper into the isothermal snow and get bigger.
Up to 15 cm of new snow at treeline and above could be rider triggered.&nbsp; Watch for this snow to have formed a slab of denser snow.&nbsp; Especially on leeward features in open terrain.
Overnight snow accumulations may provide enough of a load to initiate slides on the temperature crust. Incoming North winds may load South aspects where this crust is well formed. Assess bonding of the new snow before committing.
These heavy and unstable features can fall unexpectedly triggering deep large avalanches.  Daytime heating can increase the potential for their failure.
Below treeline expect near isothermal conditions with little freeze.  At treeline and above, natural loose wet avalanches will occur if the sun comes out and the day heats up.
Storm slabs will heal with lowered freezing levels, but are still triggerable, especially where they overly harder crusts. See avalanche discussion.
The highest likelihood for deep wet slabs is from daytime warming on solar aspects,  especially from thin areas where slabs overly facets or depth hoar. 
Natural avalanches are possible with the current spring conditions. Avalanches that trigger on a shallow crust can dig deeper into the isothermal snow and get bigger. Use caution in terrain with loose unconsolidated snow.
Up to 20 cm of new snow in the alpine  could be rider triggered.  Watch for this snow to have formed a slab of denser snow.  Use caution on lee features in open terrain.
Cornice are large on many ridgelines in the park.  A cornice fall could trigger a slab avalanche.  Minimize your exposure to this hazard, especially in the afternoon as temperature rise.
This is less of a concern with cooler temperatures but increases its probability if the sun comes out. New snow rests on a buried smooth temperature crust particularly on South aspects. The surface snow can quickly become wet and active with heat.
These heavy features can fall unexpectedly triggering deep large avalanches. Select your route to avoid these features. Probability of cornice failure increases with daytime heating and sun.
Below treeline expect near isothermal conditions with little freeze. At treeline and above, natural loose wet avalanches will occur if the sun comes out and the day heats up.
The highest likelihood for deep wet slabs is from daytime warming on solar aspects, or from periods of rain, especially from thin areas where slabs overly facets or depth hoar.
Moderate to strong N-NE winds overnight will have loaded slopes that are typically on the windward side. 
Buried crusts and surface hoar layers in the upper meter of the snowpack may be reactive to a rider triggering from shallow areas where the snowpack is weak.
Cornices are big, heavy and losing strength this time of year.  Give them the respect they deserve by minimizing exposure time beneath them and staying well back from wind exposed ridge crests.
This layer will likely be most reactive to human triggering where it sits on a buried crust (solar aspects) or in areas that have received wind effect. We may see some natural activity on this layer when the sun comes out and destabilizes it.
Wind slabs have been observed at upper elevations and may catch a rider off guard. N-NE winds have prevailed in the last 48hrs loading slopes that are typically on the windward side.
Buried crusts and surface hoar layers in the upper meter of the snowpack may be reactive to rider triggering from shallow areas where the snowpack is weak.
The forecasted precipitation, winds, and increased temps will create new storm and windslabs that will be most reactive during the storm. Natural activity will decrease once the system passes, but the newly formed slabs will take a few days to settle
Increased winds today caused numerous loose dry avalanches in steep alpine terrain. Forecasted new snow, winds and warming temps will increase activity in this terrain. This is of particular concern for climbers or skiiers entering steep couloirs.
Up to 25 cm of storm snow accompanied by strong SW winds will build slab conditions on the smooth sliding surface formed by previous temperature crusts on lee treeline and alpine slopes.
Cornices are big and will continue to build with the forecasted weather.&nbsp; Minimize your exposure time beneath them and staying well back from wind exposed ridge crests.
Hard and Soft Slabs were observed in the alpine, near ridge crests and on convexities, all aspects.  Additional snow and wind today will add to this problem
Weak shallow areas are most sensitive.  The character is stubborn to trigger, but seems to result in wide propagations (big avalanches), and is susceptible to remote triggering. 
10 cm of storm snow accompanied by strong SW winds have built stiff slab conditions on the smooth sliding surface formed by previous temperature crusts on lee treeline and alpine slopes.
Cornices are big.  Minimize your exposure time beneath them and staying well back from wind exposed ridge crests.
The forecasted precipitation, winds, and increased temps will create new storm and windslabs that will be most reactive during the storm. Natural activity will decrease once the system passes, but the newly formed slabs will take a few days to settle
Increased winds today caused numerous loose dry avalanches in steep alpine terrain. Forecasted new snow, winds and warming temps will increase activity in this terrain. This is of particular concern for climbers or skiers entering steep couloirs.
40 cm of heavy moist storm snow overnight with steady south winds has created slabs at and above treeline.  This layer will be touchy today, especially as temperatures warm up.
Weak shallow areas are most sensitive.  The character is stubborn to trigger, but seems to result in wide propagations (big avalanches), and is susceptible to remote triggering.
Isolated soft slabs in the immediate lee of alpine features were reported in the Lake Louise area, as well as up 93N. 10-15cm thick slabs were touchy and propagating upwards of 20m from skiers/riders.
Fast sluffing of the storm snow on underlying crusts was reported in the Sunshine area today. This is a definite concern for skiers and climbers in gully/couloir features.
The combination of westerly winds, new snow, and higher humidity values has allowed some rapid growth of cornices along ridge-line features. These will be touchy if the strong, spring sunshine hits them Friday morning.
Recent winds have formed new windslabs on lee aspects below ridgecrests above treeline.  These slabs are roughly 10-15cm thick, and where they are sitting on previous crusts may be reactive to skier traffic.
Several cornice failures were observed in the past 48hours and some of these did trigger storm slabs on the slopes below up to size 2. 
Recent snowfall came in warm and stuck to steep rock and ice.  This terrain will shed this snow with daytime heating.
New, storm snow can be skier triggered.  Up to 70 cm of storm snow has created a slab on top of a crust.  Below treeline this snow is moist.  Treeline and above, south winds have loaded lee features.
Weak shallow areas are most sensitive. The character is stubborn to trigger, but seems to result in wide propagations (big avalanches), and is susceptible to remote triggering.
The primary concern is where new storm slabs are sitting on previous crusts,in which case they may be triggered by light loads. Existing windslabs on lee aspects will also become more sensitive to triggering with the increased load from the new snow.
Several cornice failures were observed in the past 48 hours and some of these did trigger storm slabs on the slopes below up to size 2.
Watch for isolated soft slabs in the lee of alpine features.  These were obvious to see and avoid today, but will be blanketed by new snow tonight.  Moderate to strong southerly wind tonight and north wind tomorrow add to the current slab condition.
Loose snow avalanches involving the storm snow running underlying crusts can be expected to accompany snowfall and increase in winds forecasted for tonight and tomorrow.  This is a definite concern for skiers and climbers in gully/couloir features.
An additional 10cm of new snow on top of the previous 35cm. This 45cm storm slab sits on a thick crust that could provide a good bed surface for an avalanche where the slab has not yet had a chance to bond to it.
Expect sluffing in steep terrain today and watch for terrain traps where a small avalanche can result in big consequences.
Weak shallow areas are most sensitive. The character is stubborn to trigger, but seems to result in wide propagations (big avalanches), and is susceptible to remote triggering.
With mild spring temperatures and variable winds, new snow quickly settles into a slab. With sun and temperature crusts as a firm bed surface the bond of this new snow should be examined carefully before committing to steep or unsupported terrain 
New snow from recent and incoming storms will fail easily in steep terrain with skier traffic and naturally from extreme terrain. With underlying crusts these events may travel  a long distance and gain mass. Manage your group carefully.
Winds have formed windslabs on lee aspects below ridgecrests above treeline. These slabs are roughly 10-15cm thick sitting on previous crusts. It is possible to initiate from skier traffic where its bonded poorly to the underlying crust.
Cornices are large and a hazard by their sheer mass. They can also be a significant trigger to deeper layers if they drop. Several failures were observed in the past 72 hours. Some triggered storm slabs on the slopes below up to size 2.
Watch for isolated soft slabs in the lee of alpine features.? These were obvious to see and avoid today, but will be blanketed by new snow tonight.?
Loose snow avalanches involving the storm snow running underlying crusts can be expected to accompany snowfall and increase in winds forecasted for tonight and tomorrow.? This is a definite concern for skiers and climbers in gully/couloir features.
Another 10cm overnight at tree line and above with reverse wind loading patterns. Storm snow instabilities and wind slab will exist at higher elevations before things have a chance to settle out.
Loose snow sluffs can gain mass in steeper terrain catching a rider off guard today. Be mindful of terrain traps (e.g. gullies, cliffs) where small avalanches can be more serious.
Infrequent large avalanches have occurred on deeper instabilities. Shallow, rocky areas where the snowpack is thin and weak are most likely where they will be triggered.
Winds continue forming windslabs on lee aspects below ridgecrests. These slabs sit on previous crusts. Suspect it remains possible for a skier to initiate this slab where it bonds poorly to the underlying crust. N winds reverse loading pockets.
Cornices are large being a hazard by their sheer mass. They can also trigger deeper layers if failure occurs. Several cornice failures were observed last week. Some initiated storm slabs and a few deeper releases. 
Watch for isolated soft slabs in the lee of alpine features. These slabs are now hidden, since they have been buried by last nights snow fall (&lt;10cm)
Easterly wind (reverse from the usual) and light snow fall amounts will load 'low snow' areas and create a condition for dry loose snow avalanches. This is mostly a concern for riders and climbers in gully/couloir features in the alpine.
40-50cm of storm snow is being transported by variable winds. N'ly winds have reverse loaded solar aspects and may bond poorly where buried sun crusts exist. The wind is also building large, unsupported cornices.
Loose snow sluffs can gain mass in steeper terrain catching a rider off guard today. Be mindful of terrain traps (e.g. gullies, cliffs) where small avalanches can be more serious.
Infrequent large avalanches have occurred on deeper instabilities. Shallow, rocky areas where the snowpack is thin and weak are most likely where they will be triggered.
Windslabs can be found on lee aspects in exposed terrain around ridgecrests. Where these slabs sit on previous crusts, the likelihood of a skier triggered avalanche increases.
Cornices are large and are a hazard by their sheer mass. They can also trigger deeper layers if failure occurs. Several cornice failures were observed last week - some initiated storm slabs and a few deeper releases.
Watch for isolated soft slabs in the lee of alpine features. These slabs may be hidden by recent light snowfall.
More snow is expected today increasing the avalanche hazard. A new surface hoar layer is down around 20cm under this new snow. It has widespread distribution and will be easily triggered by riders under this new load.
A surface hoar layer buried down 50-110cm at the higher elevations is within the range of rider triggering.
Hard wind slabs pressed into lee and cross loaded features at tree line and above.
4cm thick rain crust found below tree line and up to 2700ms. No new avalanches have been observed on this layer.
Areas that do receive significant precipitation in the next 24 hours will see sluffing in steep alpine terrain.&nbsp; This will likely be limited to the Eastern slopes and mostly a concern for ice climbers.
Lee alpine slopes have lingering wind slabs that may be reactive to skier traffic. Probe for evidence of wind slabs over weak facets and use caution in this type of terrain. Areas that receive significant snow will also have new wind slabs forming.
Winds are expected to increase today, expect soft slabs at higher elevations that will be easily triggered by riders as sits is over a surface hoar layer. Lower down sluffs can gain mass and have larger consequences than expected.
A surface hoar layer down 60-120cm will have large consequences if triggered by a rider. Avoid shallow snowpack areas where triggering this layer is more likely.
Light new snow coupled with gusty N-NE wind has caused some sluffing in steep terrain in the Eastern part of the region.&nbsp; It's mainly a problem for ice climbers.&nbsp; Winds expected to be moderate again on Tuesday.
Lee alpine slopes have lingering wind slabs that may be reactive to skier traffic. Probe for evidence of wind slabs over weak facets and use caution in this condition exists.&nbsp; Recent new snow may have added to this condition.
The winds have picked up from the passage of yesterdays storm from the east and the north. Expect south and west aspects to be wind loaded which is not typical of what we normally see in this area.
Our latest surface hoar/crust layer is down under 30 to 40cm of storm snow. Consequences of triggering will increase as the slab strengthens over time.
A surface hoar layer down 60-110cm is in the range of rider triggering or can be triggered by the weight of smaller avalanches . Avoid shallow snowpack areas where triggering this layer is more likely.
Reverse loading has also created new slabs on southerly aspects.
The October melt freeze crust and basal depth hoar are a concern and avalanches may step down to basal layers.
there is still a chance for significant sluffing with the new storm snow. Be aware of loading on S aspects with northerly winds.
Surface slabs have stiffened with wind-effect and cooler temperatures. These slabs appear to be touchy and are well within the range of skier-triggering. Northerly winds have reverse-loaded alpine and tree-line lee areas.
The surface hoar buried earlier this month is slowly decomposing, but could be reawakened by surface slabs overloading it.
Higher elevation, lee slopes and gully feature areas may have developed wind slabs during the storm that came in from the north. Evaluate the snowpack for stability prior to stepping into it. Limited field observations thus far this season.
The October melt freeze crust and basal depth hoar are a a concern and avalanches may step down to basal layers. This is primarily a concern on steeper features especially if they are windloaded.
Reverse loading has created new slabs on southerly aspects. Although less reactive with the colder temperatures, watch out for lingering wind slabs on N-NE aspects.
Strong southerly winds earlier this week, shifted to strong northerly before dropping off.&nbsp; Widespread wind transport created windslabs on all aspects. They likely exist in unusual areas due to the reverse loading and may catch you by surprise.
A variety of weak surfaces, including widespread surface hoar and sun crust on steep solar aspects, make this persistent slab tricky. It may be stubborn to trigger but recent avalanches on this layer have been large and propagated widely.
Isolated wind slabs on lee and cross loaded features
The basal weakness of depth hoar or crust is the major weakness in the snowpack and any avalanche will likely fail on, or step down to this layer. Triggering on steep open slopes is still possible.
Recent storm snow was moved around by northerly winds and isolated wind slabs can be found on all aspects at and above treeline. Use caution&nbsp; in steeper wind effected areas.
Strong southerly winds earlier this week, shifted to strong northerly before dropping off. Widespread wind transport created windslabs on all aspects. They likely exist in unusual areas due to the reverse loading and may catch you by surprise.
A layer of concern exists down 30-40 which consists of widespread surface hoar and sun crust on steep solar aspects. It may be stubborn to trigger but recent avalanches on this layer have been large and propagated widely.
Only on very steep slopes will there still be any sluffing.
Northeast winds during the storm have build windslabs in unusual locations. If ridgetop winds increase on Sunday as forecast more windslabs will develop.
Recent storm snow was moved around by northerly winds and isolated wind slabs can be found on all aspects at and above tree line. Use caution in steeper wind affected areas.
The basal layers of depth hoar and/or the October melt freeze crust are the major weakness in the snowpack and any avalanche will likely fail on, or step down to these layers. Triggering on steep open slopes is still possible.
Strong southerly and northerly winds transported snow to many aspects earlier this week. Watch for windslabs in unusual areas due to reverse loading.
A weak layer is buried down 30-40 cm. On steep solar aspects it will be marked by a sun crust. Large avalanches have occurred on this layer in the last week.
Variable wind slabs exist throughout the landscape.
Observations are very limited leading to uncertainty for the potential to trigger this layer.
In the alpine some small wind slabs from previous strong winds may be present.
The main weaknesses in the snowpack continue to be the basal facets and the October 27th melt freeze crust. No recent failures on these layers have been observed however the potential for full depth releases still exists in some alpine locations.
Variable windslabs continue to form with moderate to strong winds. Be observant where this slab is building.
Observations are limited for this layer. If triggered, it has the potential to scrub to ground increasing the consequence.&nbsp; &nbsp;
Winds continue to develop this condition. Variable thicknesses depending on aspect and elevation.
Observations are limited on this layer leading to uncertainty for the potential to trigger. Basal facetting process continues to weaken base.
Variable wind slabs in hardness and thickness are now buried under the new snow and will be more difficult to identify. These were observed throughout the park in exposed areas.
The surface hoar layer down 50-100cm remains a concern. Triggering this layer is most likely in and around shallow snowpack areas.
It would be possible to trigger an avalanche in open, unanchored lee terrain. Slabs will continue to develop through the week.
Moderate west winds are creating small windslabs on lee aspects. Although there is not much snow to move around, this may be a problem for ice climbers in terrain traps or terrain above cliffs.
Facet avalanches are possible in steep terrain. Extra caution to ice climbers in steep gullied terrain where there is no cohesion in the snowpack.
25cm of new snow sits over a newly buried surface hoar layer down low and wind slabs up high. Riders should&nbsp; expect sluffing in steep terrain that could reach down into deeper unconsolidated layers and gain mass.
Variable hard and soft wind slabs from last week are now buried down 25cm.
The surface hoar layer from mid November is buried down 60-110cm. Triggering this layer is most likely in and around shallow snowpack areas with large consequences.
Observations are limited on this layer leading to uncertainty of it's triggering potential. Basal facetting process continues to weaken overall strength. Recent avalanches may indicate it is waking up slowly.
Recent North winds are loading South aspects. With winds and snow loading, this layer has the potential to increase sensitivity to triggers.
The biggest concern right now are isolated wind slabs in lee alpine terrain. Although no recent natural activity has been reported these wind slabs may be triggered by skiers or climbers.
The new, low density snow overlies a loose, facetted upper snowpack. Skiers and riders should expect fast sluffing in steeper terrain, which may gain mass if it entrains the underlying facets.
Variable soft and hard wind slabs are buried 25-30cm below the surface.
The surface hoar layer from early November is buried 60-100cm below the surface. It is most likely triggered in shallow snowpack areas. If it does start to move, expect a large avalanche with nasty consequences.
Soft slabs exist in wind loaded areas. The failure layer is believed to be a rain crust near the base of the snowpack. Failures on this layer quickly step to ground and have been observed up to 2,800 meters this week.
Strong winds near ridge tops have loaded depressions and shallow terrain features with slab snow. Steep and unsupported terrain with terrain traps below are high risk areas.
This layer is a concern in isolated areas loaded by wind. These slabs sit on a weak facetted base. There has been no recent natural avalanches on this layer but it still may be triggered by skiers or climbers.
With winds from the SW picking up today and a large amount of light snow to transport, we expect soft slabs to develop in lee features at and above tree-line.
Surface snow has been seen to be sluffing fast and entraining the underlying loose facets. Heads-up in gullies and above cliffs.
The early November surface hoar still lingers near the base of the snowpack. It may be triggered from areas with a shallow snowpack. If it does trigger, it could bring a large slide with it.
The base of the snowpack is weak and facetted. Above this the october rain crust represents a sliding layer. Failures when they occur can step to ground. This has been observed to 2,900m in the past 7 days.
Winds from both the south and north over the past 10 days have deposited soft slab conditions in the alpine near ridge tops and open features near treeline.
This layer is a concern in isolated areas loaded by wind.  These slabs sit on a weak facetted base. There has been no recent natural avalanches on this layer, but it still may be triggered by skiers or climbers.
Thin (10-15 cm thick) touchy,low density, storm slabs have been reported in the region on lee features.
Slabs are forming in over 40cm of storm snow.  Use caution in terrain over 30 degrees. Rider triggering is possible.  Fast sluffing is likely and will pick up large amounts of snow.  Avoid exposure to terrain traps.
Watch for soft slabs on lee features at and above tree-line. Large amounts of light snow will be transported by SW winds.
A weak layer buried in early November is present at the bottom of the snowpack. If you are able to trigger the weak layer, a large consequence avalanche will result.
Thin new windslabs exist on steep lee features at TL and above. These slabs are sensitive to  triggering, and may step down to the basal depth hoar once triggered. Be aware of the potential for wind to trigger avalanches above climbing routes.
The shallow early season snowpack has depth hoar and/or crust at the base and any triggered avalanche will likely step down and involve the entire thickness. A large avalanche with serious consequences is possible.
Wind loaded terrain features with enough snow to ski on may have this weakness in the snowpack.
Last week's Northerly winds may have developed slabs in unexpected locations on south aspects and terrain features. Evaluate the slope for where a small slide might sweep you down into rocky terrain.
Soft slabs are forming in over 50 cm of storm snow.  Use caution in terrain over 30 degrees. Small avalanches could trigger deeper instabilities.  Fast sluffing is likely and will pick up large amounts of snow.  Avoid exposure to terrain traps.
Watch of soft slabs on lee features at and above tree-line.  Large amounts of light snow will be transported by SW winds.
These slabs will be lurking in the areas that look appealing with the thin coverage: open areas on the lee of ridgelines and along the lee portions of lower elevation fan and gully features.
Strong to extreme gusting winds from the South through to the West will be developing additional windslabs on lee aspects at treeline and on lee terrain features in the alpine.
A small avalanche on a lee aspect may step down to this layer and could go to ground on the facets.
New snow and strong W winds are creating wind slabs in lee areas. Not much activity has been observed yet however the hazard is slowly increasing and these wind slabs have the potential to step down into the basal facets to create larger avalanches.
The base of the snowpack is still quite weak with the Oct melt freeze crust and basal facets still providing good sliding layers under the right conditions. Probe often for basal weaknesses and use caution in steeper terrain.
Over 50cm of storm snow has created soft slabs.  Use caution in terrain over 30 degrees.  Small avalanches could trigger deeper instabilities.
Watch for soft slabs on lee features at and above tree-line.  Large amounts of snow are being transported by moderate to strong SW winds.
Winds have been strong adding to this condition. Expect unusual locations for wind-slab development.
Initiating upper wind-slab layer has potential to step down deeper to this basal layer.
Moderate to strong W winds, mild temperatures and light snowfall are creating wind slabs in open areas at tree line and in the alpine which are beginning to fail naturally in steep alpine terrain and are susceptible to human triggering.
20-25cm of storm snow combined with mild temperatures and wind may start causing failures in the deeper basal facets or on the Oct melt freeze crust. Use caution in steep terrain.
As the storm continues to dump snow, with strong winds and warm temps, the storm slab is becoming deeper and more cohesive. There are reactive layers within and at the base of the slab that are likely to be triggered by skiers.
The storm has rapidly loaded slopes and may overwhelm persistent weak layers buried deeper in the snowpack. Very large avalanches will result if these layers are triggered.
Strong to extreme SW'ly winds will be forming windslabs and cornices at treeline and above.
A week of windy weather has stiffened the skiable terrain. Triggering may still be possible. Watch for these conditions in appealing looking open areas.
Continued snowfall and strong winds will create deep windslabs in most areas above treeline. Stay off steep, loaded slopes and climbers should avoid deep, avalanche prone gullies where spindrift is forming windslabs.
The base of the snowpack is weak and should not be trusted this early in the season. Avoid large open slopes in alpine and treeline areas.
Wind slabs will continue to develop with the new snow and gusting winds. The turbulent winds seem to constantly change direction and gusts are pushing into extreme wind speeds. Expect to find wind slabs in unusual terrain features.
Even a small wind slab avalanche has the potential to step down to this layer and to release the facets to ground.
55-60cm of storm snow in the past week with mild temperatures have created ideal slab conditions.
We have had strong winds during yesterdays storm leaving us with wind slabs at higher elevations.
Buried surface hoar down between 60-80cm with a recent significant snow load should remain a concern for rider triggering.
Winds gusting from all directions are redistributing the snow into the sheltered terrain features. Any slope is steep enough to slide and has enough snow to ski, should be evaluated for windslabs.
Any slope or terrain feature that was sheltered enough to hold snow in October could have this raincrust on it. Facets developing above and below this layer may cause even a small avalanche to step down to ground.
20-40cm storm snow over the past few days has been moved by strong westerly winds creating fresh, touchy slabs on steep lee features.
Many of the recent avalanches have been stepping down or failing at the base of the snowpack on the early season weak base..
This weeks storm deposited 80cm of snow under ideal slab forming conditions. This slab sits on a weaker surface that may be reactive to skiers and riders, and the slab is deep enough to produce large avalanches.
Strong winds throughout the storm, with lots of snow available for transport, have loaded lee slopes and formed windslabs at treeline and above.
Buried surface hoar down between 80 to 110cm with a recent significant snow load should remain a concern for rider triggering. These layers may also be triggered by other avalanches, producing very large avalanches.
Winds continue to build slabs on the lee aspects near ridgetops and on the lee side of terrain features at treeline and above. Anything line that has enough snow to ski on and is steep enough to slide should be evaluated for wind slabs.
The persistent slab consists of an October 27 raincrust with facets developing above and below it. It is sporadic in distribution, but even a small avalanche could step down to ground.
40-60 cm of storm snow has created touchy wind and storm slabs which are easily triggered and will likely step down to the basal weak layers.
The deep persistent weak layers (facets, depth hoar, and october rain crust) are waking up with the added load.&nbsp; Triggering this layer is likely and will result in large, destructive avalanches as seen in avalanche control work today.
Strong winds throughout the storm, with lots of snow available for transport, have loaded lee slopes and formed wind slabs at treeline and above. Wind slabs may be triggerable; watch for signs like cracking or hollow sounding snow.
The recent snow has tightened up into a slab. It sits on various weak crystals, like facets or surface hoar, that may be triggered by skiers. If triggered, avalanches may step down to deeper surface hoar layers resulting in very large avalanches.
Increased winds from the south and west have contributed to a new load on alpine lees.&nbsp;
A patchy rain crust continues to linger making stability suspect on features that hold early season snow.
Continuing winds acting on loose facets and the remaining storm snow are expected to maintain considerable hazard in the short term.
Loose snow can quickly pick up speed and mass in gullied terrain.
Previous strong winds have created wind slabs in lee slopes at treeline and above. Watch for signs of weakness, like cracking and hollow-sounding snow.
The recent snow has tightened into a slab. It sits on various weak crystals, like surface hoar and facets, that can be triggered by people. These avalanches may step down to deeper surface hoar layers, resulting in large avalanches.
There may be a number of windslabs on North and East slopes that have built during the wind events of the last week.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">Turbulent winds are redistributing snow into sheltered terrain features. Anything that is steep enough to slide and has sufficient snow to ski on should be evaluated for windslabs.</span><span class="s_AA239
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_1681A555">The Oct 27 raincrust has a sporadic distribution. An avalanche on this layer could still step down to ground and have severe consequences.</span><span class="s_AA239
Firm, wind deposited snow has formed slabs in exposed terrain.&nbsp; Use caution in lee areas at treeline and above.&nbsp;
A weak layer is buried down around 80 cm.&nbsp; If triggered, a large, high consequence avalanche will result. Carefully evaluate big terrain features by digging and testing adjacent, safe slopes.
Avalanche activity continues to be sporadic on this layer. Watch for continued loading in alpine features above ice climbs and skier terrain.
The wind slab is highly variable across all slopes from breakable to bullet proof. Watch for continued loading in alpine features above ice climbs and skier terrain.
The snowpack is weak and should not be trusted. This is classic Rocky Mountain conditions, and is not expected to change in the near future. Settle in to this reality, and keep the terrain mellow over the next few days.
Wind slabs exits in open areas, but may be hidden beneath the soft surface snow. Enter leeward or cross loaded areas carefully, and from the side to check for the presence of surface slabs before committing.
A weak layer is buried down 60 to 90 cm. If triggered, a large high consequence avalanche will result. Carefully evaluate big terrain features by digging and testing adjacent, safe slopes.
Firm, wind deposited snow has formed slabs in exposed terrain. These slabs are now covered by 15 cm of new snow. Use caution in lee areas at treeline and above.
The Oct 27 raincrust has a sporadic distribution. An avalanche on this layer could still step down to ground and have severe consequences.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Recent turbulent winds&nbsp; have redistributed snow into sheltered terrain features. Anything that is steep enough to slide and has sufficient snow to ski on should be evaluated.
The snowpack is weak and should not be trusted. This is classic early season Rocky Mountain conditions, and it is not expected to change in the near future. Settle in to this reality, and stick to mellow terrain over the next while.
Watch for new wind slabs forming in open areas above tree line as well as old wind slabs which may be hidden beneath the recent snow. Check leeward or cross loaded areas carefully for the presence of wind slabs before entering these types of lines.
Snow load has been steadily increasing over the last few days. With rising temperatures, wind and more snow on the way, riders should expect to see snow slabbing up and becoming more reactive as the day progresses.
2 weak layers exist in the snowpack, these are down between 70 and 110cm. They could become reactive with this additional snow load having very large consequences if triggered.
The Oct 27 raincrust has a sporadic distribution. An avalanche on this layer could still step down to ground and have severe consequences. We have observed a few avalanches on this layer recently.
Recent turbulent winds have redistributed snow into sheltered terrain features. Anything that is steep enough to slide and has sufficient snow to ski on should be evaluated. Recent snow likely is hiding this problem.
Overall the snowpack is very weak, and full depth avalanches are likely to be human triggered in specific areas. Stick to low angled terrain without any overhead hazard, and try to avoid all avalanche starting zones under these conditions
Wind slabs may exist in some areas of wind loading at higher elevations. While these avalanches may be initially small, once started they have the potential to trigger a larger, deep slab.
Winds have picked up overnight with lots of snow available for transport. Use extra caution on lee and cross loaded terrain particularly near ridge crests
Storm snow amounts keep accumulating with another 12cm overnight. It will need some time for storm layers to bond.
2 weak layers exist in the snowpack, these are getting deeper as snow amounts increase. They are down between 70 and 120cm and will have devastating consequences if triggered.
Thin and soft slabs formed with recent snow and warm temperatures can be found almost everywhere. With time, the forecast West Winds will likely redistribute this snow to form wind slabs near ridgelines and in gully features.
Field team in the Bald Hills area observed debris from a full depth avalanche which occurred in the past 72 hours on a wind loaded  open slope at treeline. This size 2 avalanche slid on a very weak layer near the ground.
5cm of new snow in the Bald Hills area produced some decent skiing, but is beginning to form new windslabs in exposed areas from moderate southwest winds.
Overall the snowpack is very weak, and full depth avalanches are likely to be human triggered in specific areas. There is no quick fix to this problem, and it will likely stick with us for the foreseeable future.
Wind slabs may exist in some areas of wind loading at higher elevations. While these avalanches may be initially small, once started they have the potential to trigger a larger, deep slab.
SW winds yesterday have lots of loose snow available to load onto lee slopes and form soft windslabs above treeline. Pockets of windslab have been reactive to skiers. Use extra caution on lee and cross loaded terrain particularly near ridge crests
40cm of recent storm snow is settling. Within this slab are layers of large, weak snowflakes that may be triggered by skiers/riders.
The interface between the December snow and the facetted November snow, down ~80cm is the biggest concern. Although this interface is becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
Variable distribution of a persistent slab near the bottom of a shallow snowpack.  Although stubborn, if this slab is triggered it will result in a full depth avalanche running on weak layers at or near the bottom of the snowpack.
Winds continue to be primarily from the Southwest and will likely form new pockets of windslab in exposed areas above treeline.
Full depth, human triggered avalanches are likely in specific features. This basal crust/depth hoar problem will last for a while to come.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_3FE45715">Windslabs are prevalent in many areas at upper elevations, and any new snow and wind will contribute to their formation.  Once triggered in steeper terrain, these have been seen to trigger deeper releases on the basal weakness.
Strong SW winds are expected today. They will intensify the rate of loading onto lee slopes and form new windslabs. The new snow will also bury pockets of windslab that have been reactive to skiers in lee and crossloaded terrain.
40cm of recent storm snow is settling. Within this slab are layers of large, weak snowflakes that may be triggered by skiers/riders or by rapid loading during the storm. If triggered, this slab may step down to deeper instabilities.
Persistent weak layers down ~80cm (facets), and down ~115cm (surface hoar) continue to be reactive in specific locations. Although these interfaces are becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
The crust and or depth hoar at the base of the snowpack means that any avalanche that begins will likely step down and involve the entire snowpack.
Wind transport has created a mix of hard and soft slabs on all lee and cross loaded slopes . Terrain choices are tricky because the only places that have enough snow are wind loaded. Use shallow slope angles to minimize risk.
Currently there is a variably distributed persistent slab in a generally shallow snowpack. Although stubborn, if this slab is triggered it will result in a full depth avalanche running on weak layers at or near the bottom of the snowpack.
Steady Southwest winds have created pockets of windslab on lee features above treeline. Recent natural activity has been observed in crossloaded gully features in the alpine.
Conditions are ideal for slab formation; strong SW winds, with mild temperatures are forecast. The strong winds will intensify the rate of loading onto lee slopes, and form new windslabs on lee slopes.&nbsp;
Alpine temps rose overnight to 0'C at 1900m, before dropping below freezing again. Recent storm snow will have become more cohesive. There are a few weak layers within this slab. Tests indicate that they may be triggered by light loads, like you.
Persistent weak layers down ~80cm (facets), and down ~115cm (surface hoar) continue to be reactive in specific locations. Although these interfaces are becoming less likely to trigger it is possible, or smaller avalanches may step down to this layer.
Recent strong SW winds have built windslabs at ridgelines and gully features. Warm temperatures have likely helped strengthen these slabs but triggering is still a possibility.
Expect this layer to get overloaded if forecast snowfall amounts materialize.
New snow and winds will contribute to wind slab development.
At this time all steep slopes have the potential to step down to the basal facets and result in large avalanches. The snow depth is quite variable across the forecast region, and triggering is most likely in shallow areas. Avoid starting zones.
Thin windslabs 15-20 cm deep are possible from leeward areas that will become loaded with the overnight snowfall that is forecast. Test on adjacent terrain features to check how much windslab has formed overnight.
60cm of storm snow is likely to be triggered by riders. Use caution in steep, unsupported terrain.
Recent moderate/strong SW winds have loaded lee features at treeline and in the alpine. Stay off wind loaded areas until the slope has had a chance to stabilize.
Weak layers are buried down 80 to 100 cm. In a shallow snowpack where the weak layer is well-preserved, a skier could fail these layers.
Expect this layer to persist for a long time. Best to make conservative choices as triggering this layer could have severe consequences. Likely trigger locations are shallow locations but everything is shallow right now.
New snow overnight and winds will continue wind slab development. Fresh snow may be hiding this condition.
This problem is classic. Hard to trigger, but when you hit the sweet spot (which you cannot see), full depth avalanches are likely. Don't ski aggressive terrain, the consequences are high so mange your exposure to starting zones very carefully.
10-20 cm of light new snow has fallen in the last 48-hours, and has been blown into thin windslabs in some areas. Check for windslabs and avoid freshly loaded areas. Ice climbers should watch out in steep cliffy terrain.
Strong winds are expected today with lots of snow available to be deposited onto adjacent slopes.
The recent storm snow has instabilities within it that will need a few days to heal.
The 2 buried weak layers down 70 to 110cm are still producing results in our snowpack tests. Caution around shallow snow pack areas where triggering these layers is most likely.
Expect this layer to persist for a long time. Due to its unpredictable nature, use conservative choices as triggering this layer could have severe consequences. Shallow locations are likely trigger spots. Generally, everything is shallow right now.
New snow over the weekend and winds will add to the wind slab development and hide it in some cases. Check for freshly loaded spots where a pocket of this instability would exist. Iceclimbers be cautious of crossloaded gullies and terrain traps.
Local avalanche forecasters are concerned about this problem, and are calling it a &quot;lurking beast&quot;. Deep slabs that are hard to trigger, but the consequences getting caught are dire. Manage your risk by minimizing exposure to avalanche start zones.
This problem is mostly small surface slabs formed from recent new snow and strong winds. Above 2400 meters one should expect windslabs in most areas. Locate these windslabs by monitoring the density of the surface snow as you travel through terrain.
Winds have been steady in the moderate to strong range for the past 24hrs.
Mild temperatures today will make slab formation more likely.
2 buried weak layers down 70 to 110cm remain a concern for riders. Consequences would be large if triggered which is more likely from shallow snowpack areas.
Triggering this layer could have severe consequences. Shallow locations are likely trigger spots and, everywhere should be considered shallow right now.
Check for freshly loaded spots where a pocket of this instability would exist. Ice climbers, be cautious of cross-loaded gullies and terrain traps
Up to 35 cm settled storm snow in past three days found at tree line west of the divide and 10-20 cm east of the divide. Continued westerly winds have created hard and soft wind slabs at treeline and alpine elevations.
The midpack and basal pack is mostly weak facets and depth hoar. The potential for a full depth avalanche continues to exist if the sweet spot is triggered.
Winds associated with this recent snowfall have been strong enough to create wind slabs at higher elevations and in exposed areas below tree line.
Another 25cm of new snow overnight. Snow loading has been steady for the past 5 days with instabilities in the upper snowpack.
The presence of buried surface hoar remains a concern for backcountry riders. The potential for a large avalanche on this layer still exists.
West winds have built wind slabs in lee areas and cross loaded terrain such as gully features. Triggering may be possible on steeper or unsupported features.
This layer of weak sugary snow is found in many areas&nbsp; about 30 to 40cm from the ground. Triggering&nbsp; of this&nbsp; layer is more of a concern in shallower snowpack areas.
Several avalanches have been observed on this layer. Wind loaded slopes should be carefully evaluated.
&nbsp; Avalanches on this layer have potential to step down to weaker basal layers resulting in large slides.&nbsp;
Recent snow &amp; wind loading has resulted in a few slides size 2-3 failing to ground. Avalanche professionals in the Louise area went for a ride today after placing 7 explosives in a feature then ski cutting it &amp; hitting the hidden mine to trigger it.
New and old wind slabs exist in the region.&nbsp; Once triggered these slabs are likely to step down the basal weak layer incorporating the entire snowpack in the slide.
An issue on the West side of the Divide where 40-70 cm has fallen in the past few days.&nbsp; Both slab and loose avalanches have been observed today and are expected to continue with forecasted wind.
Another 10cm in the last 24 hours continues to incrementally load the snowpack. Moderate winds have created soft slabs in exposed areas.
Winds associated with the recent snowfall have been strong enough to create slabs in the alpine and exposed areas at and below tree-line. These slabs are concealed by the incremental snowfall of the last few days.
The presence of a deep surface-hoar weakness remains a concern for backcountry travelers. It will likely take a large load to trigger it, like a cornice or someone who ate too many perogies over Christmas.
This is the predominant layer in the snowpack, and full depth avalanches to ground have been observed daily over the past week. This will increase in frequency with the new snow.
Watch for areas of wind loading. If a wind slab is triggered it may step down to deeper layers.
  A shallow spot in the snowpack could trigger a windslab which in turn would step down and release the entire snowpack.
Lee aspects have an upper snowpack consisting of several hard windslabs which could release and affect the layers below it.
Storm slabs will become an issue at the peak of the incoming system. Strong winds and warm temp's accompanying the new snow will develop slabs quickly in exposed lee features at all elevations.
Wind slabs are still reactive to rider triggering in the upper snowpack. Large planar or unsupported slopes should be treated with respect.
A deep persistent weakness lingers, down roughly 120cm. It will take a large trigger to initiate this layer, but if it starts to move, propagation would likely be wide and deep, creating a larger avalanche.
Triggering this layer from a shallow area is possible and would have high consequences in terrain features of any size.
Multiple wind slab layers at the top of the snowpack can be triggered and may step down to the deeper instability at the bottom of the snow pack.
Hard surface slabs are found near ridge crests and in gully features. These are highly variable at the moment with suspect pockets in steep and unsupported terrain.
Weak faceted or sugary snow can be found almost everywhere 30 to 40 cm above the ground. Triggering in thin snowpack areas remains a concern. Some natural avalanche activity should be expected if snowfall amounts are significant Friday.
The incoming snow will cover a variety of firm surfaces including the windslabs described above, wind affected surfaces, and sun crusts on S aspects. West winds and mild temperatures are likely to encourage slab formation in specific areas.
This is the main layer of concern. Full depth avalanches to ground have occurred daily over the past week. This layer will be stressed further by tonight's storm increasing it's sensitivity to natural and human triggering.
Watch for areas of wind loading or open slopes with wind effect. If a wind slab is triggered it may step down to deeper layers.
Storm slabs have formed at all elevations, likely up to a metre thick in alpine and tree-line lee areas. It will take a bit of time for these to settle into the snowpack.
Older wind slabs buried on various weak layers linger below all the new snow. These slabs have the potential to fail with the new, heavy load.
The heavy trigger may have arrived with this latest dump. Large avalanches are occurring, and may be stepping-down to this deeper layer.
This is the main layer of concern. Full depth avalanches on the basal depth hoar and crust have been occurring every day in the last week. The new snow has added stress to this layer, and will be easiest to trigger this layer in thin snowpack areas.
Watch for areas of wind loading or open areas with wind effect. If a wind slab is triggered it may step down to the weak basal layers. The new snow will be hiding these wind slabs in many areas.
The 20-30 cm of new snow can be expected to slough with any wind that occurs over the next 24 hours. Ice climbers should especially watch for sloughing in steep gully features and terrain traps.
Triggering this layer from a shallow area is possible and would have high consequences in terrain features of any size.
Multiple wind slab layers at the top of the snowpack can be triggered and may step down to the deeper instability at the bottom of the snow pack.
Up to 30cm of new storm snow is not yet bonded to the old snowpack.
40 to 60 cm of storm snow has formed slabs. These deposits will be deeper in areas with wind loading. Natural avalanches are still possible, assess terrain continually while you travel.
Older wind slabs are buried on various weak layers below new storm snow. Use your pole to feel for this firm, wind-deposited snow in exposed areas. These slabs have the potential to fail with the new, heavy load.
Triggering this layer from a shallow area is possible and would have high consequences in terrain features of any size.
Wind slab layers at the top of the snowpack can be triggered and may step down to the deeper instability at the bottom of the snow pack.
The mid pack is strengthening in thicker snow pack areas but this means the potential for larger propagations on the weak basal layers is a real concern.  Stick to moderate angled well supported slopes and minimize exposure to large avalanche paths.
New wind slabs are forming with lots of new snow available for transport.  If triggered these have the potential to step down to deeper facet layers and create large avalanches.  Probe for new or old wind slabs and avoid steep lee loaded terrain.
40 to 60 cm of storm snow has formed slabs. These deposits will be deeper in areas with wind loading. Natural avalanches are still possible, assess terrain continually while you travel.
Older wind slabs are buried on various weak layers below new storm snow. Use your pole to feel for this firm, wind-deposited snow in exposed areas. These slabs have the potential to fail with the new, heavy load.
Storm snow and wind have overloaded the weak basal layers in several places and caused numerous large natural avalanches in the alpine. Cornice fall, smaller slides, and skiers in shallow areas all have the ability to trigger deeper instabilities.
Recent storm snow and strong winds in the alpine are forming new windslabs at upper elevations.
Large, deep slabs are occurring naturally and from human triggers. The recent snow has tipped the scale and all avalanche terrain should is suspect. Numerous avalanches have been triggered from long distances away. Avoid avalanche terrain!
Windslabs have formed over the last 48-hours, and this trend will continue over the next few days as strong north winds are forecast at higher elevations. Small avalanches are likely to step down and release larger avalanches on the deep layers.
Temperatures are warmer up high today due to an inversion. Caution on and under steep solar aspects when the sun is shining on them. Loose avalanches will most likely originate from cliffs.
Wind slabs at ridge crests and in the alpine from the strong winds during the last storm may still catch a rider off guard.
Storm snow instabilities still exist in the recent storm snow. Although it appears to be bonding well, another day or two of settlement and observations is needed before it is no longer considered to be a problem.
Storm snow and wind have overloaded the weak basal layers in several places and caused numerous large natural avalanches in the alpine. Cornice fall, smaller slides, and skiers in shallow areas all have the ability to trigger deeper instabilities.
Recent storm snow and strong winds in the alpine are forming new windslabs at upper elevations.
The weak snowpack continues to dominate the entire region, and avalanches can be easily triggered in shallow areas at treeline and above. Keep your distance from avalanche starting zones, and work the terrain very carefully to manage your exposure.
Recent winds have created thin windslabs on steep, windloaded terrain features. Approach all windloaded terrain with respect, stop at the top and evaluate before you choose your route through.
Be cautious on the lee of ridge crests or on cross loaded terrain where previous wind slabs may still linger.
Snowpack tests yesterday showed instabilities in the upper 60cm in the moderate range.
Strong West winds made quick work of the 40 cm of snow that fell before the weekend. Thin, spotty wind slabs found behind exposed features well below treeline can be easily triggered by skiers. Expect these slabs to be more significant TL and above.
This weak layer of snow persists 30 to 40 cm above the ground. Triggering a wind slab could produce the large load necessary to wake this layer up. Use caution in thin areas particularly with steep, planar, or unsupported slopes.
Storm snow and strong winds have overloaded the weak basal layers in several places and caused numerous large natural avalanches. Cornice fall, smaller slides, and skiers in shallow areas all have the ability to trigger deeper instabilities.
Recent storm snow and strong winds in the alpine have formed new windslabs at upper elevations which have the potential to step down and trigger large slides on the basal weakness.
&nbsp; A generally weak and faceted snowpack dominates the forecast area. The potential for full depth avalanches exist.
Significant  fresh wind slabs exist in exposed terrain. The potential for a small wind slab avalanches stepping down into the facets below is a concern right now.
The 40-50cm of snow from last week's storm continues to settle. Resistant planar results were seen in snow tests yesterday on this layer.
Snowpack tests continue to show sudden planar results deeper in the snowpack (down 120cm). Caution is still needed when traveling into lee or cross-loaded features.
Many avalanche paths have already slid in the 2,400 m - 2,800 m range. Slopes that have not failed are expected to fail with the increased snow loading and winds this weekend.
The upper snowpack is a stratified layer of multiple windslabs. Recent field tests have produced failures with moderate shear strength. Currently this condition is less prevalent at treeline. Forecasted snowfall and wind will increase this concern.
The weak base is the real danger. Moderately angled slopes with thicker snowpack are the best choices for not triggering this layer.
Fresh storm slabs can be triggered and will have the potential to step down to the weak base.
The storm slab is bonding well, as indicated in snowpack tests throughout the park. Use caution when entering wind-affected areas in the alpine and at tree-line.
The persistent weak layers are now fairly deep in the snowpack. They will need either a sizeable trigger to propagate to them, or a person tromping around in a thin wind-affected area.
The weak base is the major problem layer in the snowpack. Avalanches will almost certainly involve the entire snowpack.
Recent windslabs near ridge crests may be triggered. Avalanches will likely step down to the weak base.
Many avalanche paths have already slid in the 2,400 m - 2,800 m range. Slopes that have not failed are expected to fail with the increased snow loading and winds this weekend.
The upper snowpack is a stratified layer of multiple windslabs. Recent field tests have produced failures with moderate shear strength. Currently this condition is less prevalent at treeline. Forecasted snowfall and wind will increase this concern.
Strong winds with a continuation of new snow will keep building windslabs in open areas. These can be found well below treeline.
This weak layer of snow persists 30 to 40 cm above the ground. Triggering a wind slab could produce the large load necessary to wake this layer up. Use caution in thin areas particularly with steep, planar, or unsupported slopes.
A new storm slab is developing. The new snow is still loose and unconsolidated, but with mild temps and continued loading by new snow it will become more of a concern. Heads up if the snow starts to feel slabby. Watch for sluffing on steep slopes. 
With lots of loose snow available to be transported, and sustained moderate winds above treeline, new windslabs are forming. In addition, cornices are becoming large and may fail triggering the slopes below.
The persistent weak layers are now fairly deep in the snowpack. They will&nbsp; likely need a sizeable trigger, like an avalanche or a large chunk of cornice falling. They may be triggered from thin snowpack areas by a lighter trigger, like you.
New snow will likely overload deep weaknesses in the snowpack causing increased avalanche activity.
Alpine and tree line winds had added a stiff wind slab to the weak snowpack. If this layer triggers it will likely step down to the basal weakness mentioned above.
The forecast snow this weekend may be enough to overload the basal facets in many areas with potential for large slab avalanches. Stick to well supported, planar terrain below 30 degrees and minimize exposure to start zones.
Wind slabs will build quickly over the weekend. Expect sluffing in steep alpine terrain and avoid steep lee loaded features. Triggering a wind slab may also cause it to step down to the basal facets resulting in a larger than expected avalanche.
60 to 70cm of storm snow has fallen over the past 3 days with strong southerly winds. Heavy density snowfall is rapidly loading a previous layer of low density snow causing storm slab formation.
Strong southerly winds created touchy wind slabs on lee slopes yesterday. Expect further wind slab development today as the winds pick up this afternoon.
The current rapid loading event could reawaken the deep slab that has been sleeping for the past week.
The storm has overloaded the weak and facetted snowpack, and large natural avalanches are being observed. Active deep persistent slab conditions like this are dangerous; avoid avalanche terrain for the next few days - time for good snow in the trees.
20-40 cm of storm snow has fallen across the forecast region, creating unstable snow in the surface layers from both new snow and wind. Expect deep windslabs in leeward areas due to extensive wind loading.
&gt;35 cm of storm snow has fallen in the past 24 hrs and has been redistributed by moderate SW winds. This new snow is overloading the weak snowpack below resulting in large deep avalanches.
In many areas, the basal facet weakness has been avalanched away, where this has not happened, there is a lot of snow sitting on top of this unstable weakness.
These winds slabs have now been buried by the new snow so will be hard to locate.&nbsp;
Over 75 cm of heavy storm snow has fallen with moderate/strong southerly winds. This new snow is causing natural avalanches and is very touchy to human-triggering.
Strong southerly winds over the last two days has created touchy wind slabs.
The current avalanche cycle is overloading the entire snowpack and many deep avalanches have been observed sliding on the ground. Fracture lines in some areas greater than 150cm deep. The situation is very touchy; avoid all avalanche terrain.
45 cm storm snow and extreme winds have created deep storm slabs that can easily be triggered by humans. Extreme winds on Monday night will only add to this problem.. Avoid all avalanche terrain until this cycle subsides.
55cm of storm snow has fallen in the past 48hrs and is being redistributed by moderate to strong SW winds significantly overloading the snowpack. Lee features will be creating dangerous conditions overhead and underfoot.
Forecasted new snow will continue to overload an already stressed snowpack.
Triggering any of the above problems have potential to initiate this layer and create large full path avalanches.
New overnight snow is exceptionally heavy with the mild temperatures we have. This snow is sitting over much lighter snow from earlier this week and the result is ideal slab conditions and weak layers for it to slide on.
Winds in the past 24hrs have been strong to extreme with gusts to 130km/h on Mt Macdonald.
The November persistent weak layer is more likely to be triggered in times of heavy loading such as these with storm snow avalanches stepping down to this layer.
The possibility of natural and skier triggered avalanches remains high. Stay out of avalanche terrain until things settle down. Look for protected skiing in the trees on moderate angled slopes with no exposure to alpine and tree line start zones.
The storm slab is 40-50cm thick in many places and if triggered, it is likely to step down into the basal facets resulting in very large avalanches. Avoid all avalanche terrain until this cycle subsides.
This layer is proving very susceptible to human triggering as evidenced by the two remotely triggered slides today. Extensive whumphing and cracking experienced particularly at treeline elevations.
70cm of storm snow has fallen in the past 72hrs and has been redistributed by moderate to strong SW winds onto sheltered slopes in the alpine and treeline.
A failure in this layer is likely to trigger the weak basal facet layer below.
Yesterdays blizzard deposited 35cm of heavy snow that is sitting over snow that is much lighter, including a buried surface hoar layer. This combination makes it more reactive to rider triggering until it has a chance to settle out.
The winds associated with the storm yesterday were strong throughout the park at all elevations. Slopes near ridge crests should be treated with caution.  Wind slabs may exists in open areas below tree line above where there's a melt freeze crust.
The November surface hoar layer can still be triggered by large triggers such as avalanches or cornice fall. There have been reports of backcountry operations seeing avalanches failing on this layer in the region.
Open terrain near ridge crests are likely spots to find recent wind slabs. Use your poles and probe to help detect signs of instability.
In shallow snowpack areas there is a possibility that the deeper instabilities could be triggered. Our growing snowpack and milder temperatures are helping to reduce the chance that this layer could be triggered in most areas.
Open terrain near ridge crests are likely spots to find recent wind slabs. Use your poles and probe to help detect signs of instability.
In shallow snowpack areas there is a possibility that the deeper instabilities could be triggered. Our growing snowpack and milder temperatures are helping to reduce the chance that this layer could be triggered in most areas.
Expect to see less natural activity concerning this layer, however, it is still ripe for human triggering. If triggered, expect large and destructive avalanches with fracture lines up to 200cm deep.
Unlike the deep persistent slab problem, the storm slabs will eventually start to bond to underlying surfaces over the coming days.
Warmer temperatures will contribute to overloading the weak basal facets leading to full depth avalanches in the valley bottoms. Be cautious of steep slopes along terrain traps such as creeks.
As the warmer temperatures stiffen up the snow surface, even a small avalanche could step down to the basal facet layer resulting in a full depth avalanche.
Strong winds have formed windslabs in open areas at all elevations. In many areas they have formed over lower density snow, which may be triggerable.
Over a meter of new snow, combined with high winds and rising temps, have created a storm slab. It is sitting over snow that is much lighter, including a buried surface hoar layer. This slab will need some time to settle and bond.
The recent avalanche cycle showed the reactivity of the snowpack to rapid loading and its capability to produce large avalanches. Until the snowpack adjusts to the new load these layers may be reactive. Be cautious in areas that have not avalanched.
Depending on elevation, this layer is either bridged by a hard mid-pack at higher elevations and likely to be triggered from a shallow area. At the lower elevations there is minimal support in the snowpack and is easier to trigger.
Triggering this layer could potentially initiate deeper instabilities. 
Full depth avalanches have been seen daily on this layer. We expect another natural avalanche cycle on this layer on sunny aspects with the forecasted warm temperatures and sun.
Any avalanche triggered as a windslab is almost certain to step down to the basal facets and trigger a much larger avalanche.
Over a meter of new snow is about to get hit by lots of solar and above freezing temps right up to mountain top. Natural avalanches are expected from steep, solar aspects. In addition, the storm slab will likely be more reactive on sun exposed slopes
Strong winds have formed windslabs in open areas at all elevations. In many areas they formed over lower density snow, which may be triggerable. Be especially cautious in places where even small avalanches can have high consequences, ie over cliffs.
The recent avalanche cycle showed the reactivity of the snowpack to rapid loading and its capability to produce large avalanches. Likely triggers are cornices failing and other avalanches stepping down. Be cautious in areas that have not avalanched.
Full depth avalanches continue to be seen daily on this layer. We expect another natural avalanche cycle on this layer on sunny aspects with the forecasted temperatures and sun. Even a cornice release in the heat could trigger a large avalanche.
Any windslabs triggered will likely step down to the basal facets and trigger a much larger avalanche.
Basal weakness means that the potential for full depth avalanches still exists.&nbsp; Smaller avalanches have the potential to trigger deeper instabilities.
Wind slabs are still touchy at upper elevations.&nbsp; Extensive scouring and cross loading was apparent today during helicopter control efforts on upper targets in the alpine.&nbsp;
Natural avalanches are expected from solar aspects if the high, thin cloud breaks up. Over a metre of new snow may have trouble adjusting to intense sunshine and high freezing levels over the next 48hrs.
Strong winds formed windslabs at all elevations and on all aspects. These windslabs sit on a low density layer and can be triggered by light loads. Be cautious in areas where even a small avalanche can have large consequences, ie over cliffs.
Be cautious in areas that have not avalanched. The recent avalanche cycle showed the reactivity of the snowpack to rapid loading and its capability to produce very large avalanches. Cornices could be the large trigger to break down to the deep layers
Strong west winds have created windslabs on lee slopes below ridgelines. These slabs can be found well down from the ridgetop and into open areas due to the intensity of the wind. Warm temperatures will increase the likelihood of triggering.
Snowpack depth is highly variable. It might be hard to spot the shallow areas where triggering this deeply buried weak snow is more likely. Large loads such as falling cornices or surface avalanches also have the potential to wake up these slabs
Warm temperatures and sun will weaken the large cornices that developed from the snow and wind from last week. These could be the large load required to trigger the deeper instabilities in the snowpack and create large avalanches.
Watch for daytime warming and areas receiving large amounts of sun. avalanches may run full path and affect valley bottoms and trails crossing avalanche runouts.
The basal facet layer is of great concern as it is&nbsp; the most significant weakness in this year's snowpack.  Use extra caution in areas that have not previously avalanched, especially on open treeline slopes.
Windslabs have been triggered on this interface buried in the snowpack as well as deeper on the basal facet layer.
Strong winds formed wind slabs is exposed terrain at all aspects.  These wind slabs sit on a low density layer.  This layer could possibly be human triggered.  Be cautious in areas where even a small avalanche can have large consequences.
A weak layer buried down over 2 m will take a large trigger to fail. Limit your exposure to cornices.  A cornice fall to could be just the right trigger to fail this weak layer.
Frequency of full depth avalanches on the basal depth hoar/crust is starting to slow down.  Any slope that hasn't avalanched should be treated with caution, as it will be very high consequence if you trigger this layer.
Wind slabs that have been triggered in the last couple days have provided enough weight to &quot;step down&quot; to the basal weaknesses.
The basal facets are weaker below tree line as many whumphs noted. Where the snow is deeper at higher elevations, the mid-pack is bridging the weak basal facets; however, snowpack depth varies so much that its hard to inspire confidence in stability.
Wind slabs of variable thickness and hardness dot the landscape. Many windpressed and stripped features will be encountered once you leave the shelter of the trees. Triggering this could dig down to the basal facets increasing the consequence.
Wind slabs have formed from moderate to strong winds.&nbsp; It is possible a rider could trigger these hard, dense snow deposits.&nbsp; Be cautious in areas where even a small avalanche can have large consequences, i.e. around cliffs.
A weak layer buried down over 2 m will require a large trigger to fail.&nbsp; Limit your exposure to cornices.&nbsp; A cornice fall could be just the right trigger to fail this weak layer.
The frequency of full depth avalanches on the basal depth hoar/crust is slowing down, but any slope that has not avalanched should be treated with caution. It will be very high consequence if you trigger this layer.
Wind slabs that have been triggered in the last couple days have provided enough weight to &quot;step down&quot; and trigger the basal weaknesses, resulting in larger than expected avalanches. Avoid steep lee loaded or cross loaded terrain.
The basal facets are weaker below tree line as many whumphs noted. Where the snow is deeper at higher elevations, the mid-pack bridges the weak basal facets; however, snowpack depth varies so much that its hard to inspire confidence in stability.
Wind slabs of variable thickness and hardness dot the landscape. Many windpressed and stripped features will be encountered once you leave the shelter of the trees. Triggering this could dig down to the basal facets increasing the consequence.
Wind slabs have been observed throughout the Park at higher elevations. It has been unreactive to snow sliding traffic but there is doubt that this may be the case everywhere. Small pockets may catch you by surprise.
The November persistent weak layer will need a large load to be triggered. Its distribution is waning but still lingers in isolated spots.
The basal facets are weaker below tree line. Where the snow is deeper at higher elevations, the mid-pack bridges the weak basal facets; however, snowpack depth varies so much that its hard to inspire confidence in stability.
Wind slabs of variable thickness and hardness dot the landscape. Many windpressed and stripped features will be encountered once you leave the shelter of the trees. Triggering this could dig down to the basal facets increasing the consequence.
Be conservative with your terrain selection and consider steep or unsupported planar slopes carefully. Assess the snowpack often: the variable nature of the snowpack makes it hard to avoid shallow areas where triggering may be more likely.
These old, hard slabs still deserve respect especially in steep or unsupported terrain. Remember that triggering these surface slabs may create enough load to pull out a larger deep persistent slab. Triggering may be easier in warmer periods.
With mild temperatures and strong solar radiation any snow near rocks could easily release. The large load created by a falling cornice could trigger the deep persistent slab.
The weak and unpredictable snowpack persists in the Lake Louise area and eastern side of the forecast region, where all steep terrain remains suspect. This problem is much less prominent west of the Divide, where the snowpack is deeper and stronger.
Areas at treeline and higher elevations have been blasted by the winds. This has created wind crust on the surface, and windslab avalanche problems in steep, windloaded areas.
Last weeks storm left us with widespread winds slabs up high. They have been largely unreactive to rider testing however areas they could be triggered are on steep unsupported slopes, slopes nearing ridge crests or on convex rolls.
The November persistent weak layer will need a large load to be triggered (i.e. cornice fall). Its distribution is waning but sill lingers in isolated spots.
Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Cross loaded gullies may be the most attractive after the intense wind scouring in the alpine, but careful evaluation is essential to check for the presence of touchy windslabs.
Thin areas and steep terrain that has not  yet avalanched should be avoided. Thicker moderate angled terrain  with low consequences would be a good choice.
These slabs are fairly isolated now, but could cause a deep step down avalanche if triggered.
There may still be a few lingering slab pockets in steeper, unsupported features that could surprise a person. This being said, there has been little activity observed on the surface windslabs,
The November persistent weak layer will need a large load, like a cornice, to be triggered. The isolated nature of its distribution makes it hard to forecast for this layer.
Low likelihood, high consequence. This means the chance of triggering is decreasing, however, if you do, it will be a big slide.
Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Cross loaded gullies may be the most attractive after the intense wind scouring in the alpine, but careful evaluation is essential to check for the presence of touchy windslabs.
Thin soft slabs now hide either hard windslab or suncrust. They may not be bonded well, and could be a concern in steep terrain where a slip/fall has a significant consequence (ie cliffs).
Beware the overhanging cheeseburgers along the ridgetops! If this inversion becomes as strong as forecasted, we may not see alpine temp's drop overnight, creating unstable cornices heating up in the afternoon sun.
The November persistent weak layer will need a large load to trigger it, like a cornice. The isolated nature of its distribution makes it hard to forecast for this layer.
Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Cross loaded gullies may be the most attractive after the intense wind scouring in the alpine, but careful evaluation is essential to check for the presence of reactive windslabs.
Thin areas will have the biggest potential for triggering the basal depth hoar/crust layer. Caution is advised in steep, planar features. Avalanches will be full depth with large consequences.
Warmer temperatures forecast at higher elevations could cause some loose, wet avalanches in very steep, rocky terrain. Climbers should be cognisant of this.
The snow from Wednesday is starting to build new windslabs. These will be touchy for the next few days until the begin to settle. Previous windslabs are also a concern underneath this new snow. These could be triggered from the many thin areas.
Be conservative with your terrain selection and assess steep or unsupported planar slopes carefully. The new snow may be hiding shallow areas where triggering may be more likely and with the variability in snowpack there are many thin areas.
Temperature inversion with warmer air at ridgetop and strong solar radiation will weaken snow in steep rocky areas. A falling cornice could create the large load needed to trigger a deep persistent slab so be conscious of what is overhead.
A little bit of new snow has buried a large surface hoar layer. This sits on a smooth bed surface; windslabs or suncrusts. This is likely to be triggerable on steep terrain. In addition, loose avalanches are expected to be triggered by strong solar.
Be aware of cornices looming overhead. Warm temps and strong solar radiation are expected in the alpine and will likely cause some cornices to come crashing down.
The November persistent weak layer will likely need a large load to trigger it, like a cornice. This is the classic low probability-high consequence problem. It's patchy distribution makes it hard to forecast, but if it wakes up watch out!
Triggering of the basal depth hoar/crust will be most likely from thin snowpack areas. These are harder to trigger now, but if you hit the &quot;sweet spot&quot;, the avalanche will be full depth and large consequence.
Inverted temperatures at upper elevations could cause loose wet avalanches. This will be possible from very steep, sunny terrain which is sheltered from the wind.
Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Be aware of solar warming which could trigger a slide on this layer which in turn may step down and release the basal weakness.
Temperatures at higher elevations are forecast to crest above 0 degrees today. Use caution on solar aspects as radiation intensifies.
Current conditions are ideally suited for increased cornice fall hazard. Be aware that although you may be on a shaded slope the cornice above may be getting baked in the sun.
This layer has spotty distribution and will need a large load to trigger or can potentially be triggered from thin snowpack areas.
A supportive slab over a shallow spot in the snowpack could provide the energy for a small avalanche to step down into this layer.
Recent small wind slabs in loaded terrain features released on solar aspects and stepped down to the weak facet creating a full depth avalanche. Watch for wind loaded pockets over unsupported terrain such as between pitches of an ice climb.
There's a cooling trend occurring as our weather pattern changes. The temperature inversion will not be as prominent up high however steep south and west slopes may still see loose avalanches with daytime warming and solar radiation.
This layer has spotty distribution and will need a large load to trigger or can potentially be triggered from thin snowpack areas
In thin snow areas the basal facets are still very weak and producing sudden collapse results in snowpack tests with the potential for large avalanches. Probe often for this weakness near the ground and stick to planar well supported ski slopes.
You are more likely to trigger this layer below treeline where the upper snowpack is more consistently shallow and weak. You still need to be cautious in shallow areas above treeline.
You are more likely to trigger this layer below treeline where the upper snowpack is more consistently shallow and weak. You still need to be cautious in shallow areas above treeline.
Be conservative with your terrain selection and assess steep or unsupported planer slopes carefully where the snowpack may be thin. In these areas it may be possible to trigger the weak faceted area created early in the winter.
The weak facets at the base of the snowpack have not gone anywhere. But, time and settlement seem to have brought the snowpack into balance. Isolated, large avalanches may still occur, particularly in areas that have not avalanched previously.
You are more likely to trigger this layer below treeline where the upper snowpack is more consistently shallow and weak. You still need to be cautious in shallow areas above treeline.
The basal facets are lying dormant for now. However, the possibility of triggering from a weak spot (thin, shallow, rocky area) remains real.
Park staff were able to ski-cut small, hard wind slabs in steeper alpine and tree-line terrain yesterday. These pockets moved quickly on the underlying hard surface, and would be a concern in &quot;no-fall&quot; terrain, as they could sweep you over cliffs.
It is a classic Rockies problem of low likelihood, high consequence when dealing with the basal depth hoar/crust. No activity has been seen on this layer in a week, but where the snowpack is thin, your likelihood of triggering a slide will increase.
Odds are you will not be able to trigger this layer from fat areas in the snowpack. It exists at all elevations and aspects and the variability in the snow pack is so widespread it does not inspire confidence anywhere in the terrain.
5cm of snow will bond poorly to the various surfaces; sun crust and surface hoar; it has buried. Expect sluffing in steep terrain. Be cautious in terrain like confined gullies, where snow can accumulate deeper, or exposed areas over cliffs.
Moderate winds, from variable directions, will transport the new snow, forming slightly deeper soft slabs along ridge crest and breaks in terrain. These soft slabs will bond poorly to the surfaces below. On exposed alpine slopes they bury hardslabs.
Although this layer has not been reactive in the last week, the potential to trigger a deep slab from a thin spot remains.
This layer is now bridged by a strong mid and upper snowpack but could still be triggered from shallow or rocky terrain.
Strong northerly winds have redistributed snow onto isolated locations at treeline and alpine elevations.
30 cm above the ground, this weak snow is a serious concern. Travelers should carefully consider snowpack depth, terrain shape, and slope angle. Use your probe to confirm depths when you are uncertain.
The recent snow fails easily in steep terrain up to 25cm deep. Expect this to dissipate as the wind moves in.
<br />Northerly winds are expected. New wind slabs could form very quickly as there is a lot of snow available. Expect to find different distribution to these slabs compared with the prevailing Westerly winds.
5cm of snow will bond poorly to the various surfaces; sun crust and surface hoar; it has buried. Expect sluffing in steep terrain. Be cautious in terrain like confined gullies, where snow can accumulate deeper, or exposed areas over cliffs.
Slightly deeper soft slabs may exist along ridge crest and breaks in terrain due to yesterdays winds. These soft slabs will bond poorly to the surfaces below. On exposed alpine slopes they bury hardslabs.
This layer is now bridged by a strong mid and upper snowpack but could still be triggered from shallow or rocky terrain.
Strong northerly winds have redistributed snow onto isolated locations at treeline and alpine elevations.
Watch for thin snowpack areas in steeper terrain where triggering the basal depth hoar/crust is possible.
These are confined to the immediate lees of ridgetops and will be fairly thin. 
5 cm of snow is reactive to skier-triggering. Expect fast sluffing in steep terrain.
Variable wind slabs are present beneath new snow. Use caution along ridge crests and breaks in terrain. In exposed alpine terrain hard slabs are present.
This layer is well bridged by a strong mid and upper snowpack but could still be triggered from shallow or rocky terrain.
Strong northerly winds have redistributed snow onto isolated locations at treeline and alpine elevations.
Thin snowpack areas in steep, alpine terrain will be the place to trigger the basal depth hoar/crust.&nbsp;
Places which have a well defined sun crust will be the most susceptible to triggering a storm slab.&nbsp; At the moment these are of lower consequence and thin (15-30cm) and isolated to specific terrain features.
New snow over a variety of surfaces will sluff easily in steep terrain.
Old and new variable wind slabs are present at alpine and tree line elevations. It is possible to trigger isolated pockets of wind affected snow on steep roll overs.
This problem continues to exist at the base of the snowpack, but triggering is unlikely due to a combination of time, settlement and the bitter cold - all of which have combined to lock up the snowpack. It will reawaken once the weather changes.
This layer is well bridged by a strong mid and upper snowpack but could still be triggered from shallow or rocky terrain.
Strong northerly winds have redistributed snow into isolated pockets of wind slab at alpine elevations.
Winds have redistributed some of the new snow creating a soft slab that was seen to react to rider triggering. Watch for this are on steep convex rolls with a buried sun crust. Shooting cracks from your ski tips is an indicator of this instability.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_A136FBD0">An increasingly well settled snowpack means triggering an avalanche on a deep persistent layer has become unlikely. However, large and destructive avalanches may be possible with a heavy load in steep, thin start zones.</span><span class="s_AA239
This layer is well bridged by a strong mid and upper snowpack but could still be triggered from shallow or rocky terrain.
Strong northerly winds have redistributed snow into isolated pockets of wind slab at alpine elevations.
A lack of avalanche activity and hard test results show that triggering the weakness at the base of the snowpack is unlikely, however the variability in snowpack depth means it is worth watching for thin areas where triggering may still be possible.&nbsp;
The recent snow has created thin wind slabs in the alpine and at treeline which could be a problem in steep confined terrain such as gullys and couloirs.
Expect to see some wind loading on south and west aspects, not typical of this area. The new snow has not bonded well to the old surfaces and was reactive early this week to rider traffic. People could expect the same but with a stiffer windslab.
This layer is well bridged by a strong mid and upper snowpack but could still be triggered from shallow or rocky terrain or by a large load.
Strong northerly winds from a few days ago redistributed snow into isolated pockets of wind slab at alpine elevations.
The snowpack has gained some strength and now combined with the cold temperatures it will be hard to trigger an avalanche on the weak layers near the base. This situation will persist until the weather pattern changes.
Expect to see some thin slabs on S and W aspects in the alpine and exposed tree-line elevations, due to cold Arctic winds blowing from the N and E. These slabs will be stiffer with the cold weather, and have not bonded well to the older surfaces.
This layer is well bridged by a strong mid and upper snowpack but could still be triggered from shallow or rocky terrain or by a large load.
Strong northerly winds from a few days ago redistributed snow into isolated pockets of wind slab at alpine elevations.
The snowpack has gained some strength and now combined with the cold temperatures it will be hard to trigger an avalanche on the weak layers near the base. This situation will persist until the weather pattern changes.
Riders are still able to ski-cut thin (5-10cm), hard slabs in lee features. With the reverse loading of N and E winds, slabs can be found on all aspects. While the slabs are likely too thin to bury a person, they could push one over steep terrain.
This layer is bridged by a strong midpack. Keep in mind that shallow locations could produce a failure in this layer which would step down into the facets and slide full depth.
The 40 cm of snow sitting on the ground continues to loose strength. The mid-pack that is holding everything together varies greatly in depth. Use your probe to verify that you are traveling in fat areas and use extra caution if you are not.
Variable wind directions over the last few days have created thin and soft slabs in a wide range of open areas. Surface snow is faceted which is  discouraging slab formation. These slabs sit on weak snow over firms surfaces: keep them in mind.
Thin wind slabs exist in exposed tree-line and alpine lee features on all aspects. It is possible for riders to trigger isolated pockets.
The basal layer of depth hoar lies dormant for now, but is a prominent feature of the snowpack. Currently, it will only be possible to trigger from extreme terrain in thin snowpack areas until the weather changes.
This layer may become reactive if there is a sudden temperature warming through the day.&nbsp;
Thin pockets of wind slab are present on exposed treeline and alpine lee features. North and east winds have created reverse loading conditions.
This layer may become reactive if there is a sudden temperature warming through the day.
The basal depth hoar, crust layer is dormant for now.&nbsp; Currently it is only possible to trigger this layer from extreme terrain in thin snowpack areas.
Thin pockets of wind slab are present on exposed treeline and alpine lee features.&nbsp; North and east winds have created reverse loading conditions.
This layer may become reactive if there is a sudden temperature warming through the day.&nbsp;
The basal depth hoar, crust layer is dormant for now. Currently it is only possible to trigger this layer from extreme terrain in thin snowpack areas. This layer will likely become more reactive as we get some new snow loading it.
Isolated pockets of windslab to watch out for in exposed areas. Winds were predominantly from the East and the North until yesterday morning, loading south and west slopes near ridge tops.
This layer may increase its reactivity if there is a sudden temperature warming through the day.
The deep persistent weakness has been dormant for several weeks. With warming temperatures and increasing snow load may we may begin seeing some avalanches on this layer by Wednesday.
Any new snow or wind slabs will be sitting on a mix of facets, surface hoar and sun crust. This has potential to create a good sliding layer. Watch for sluffing in steep terrain starting Tuesday, and deeper storm slabs failures by Wednesday.
As new snow falls and is redistributed by W winds, expect slabs to form quickly or to&nbsp; contribute to soft windslabs that already exist&nbsp; at Treeline and above. In recent days even very soft slabs have failed easily over weak, faceted surface layers.
In terrain over 40 degrees skiers may easily sluff the Surface Snow which will continue to gouge out a trough until it hits lower angled terrain. These events occur naturally in very steep terrain. Expect this to get worse with more snow.
This weak snow under the entire snowpack remains a concern especially in thin areas. As warming and loading occurs, avalanches described in the problems above could provide a large load triggering larger events on this layer.
35cm of new snow has fallen onto a surface that will not bond easily. Triggering avalanches will not be difficult due to the nature of the recently buried weak layers.
Winds have picked up with lots of light snow available to be pushed around. Expect wind slabs to continue to form at higher elevations as the day progresses.
This layer may increase its reactivity if there is a sudden temperature warming through the day.
Soft slabs are forming rapidly with the new snow over a very weak and widespread layer. These slabs can be triggered from a distance on steep slopes and require very conservative terrain selection and route finding.
With widespread avalanches occurring the potential for the weak snow at the bottom of the snowpack to be triggered as a large avalanche is elevated. Give big terrain a wide berth until things have a chance to settle.
By Wednesday there may be up to 25 cm of new snow being blown into fresh windslabs. Fresh slabs like this are touchy, and in places their depth may exceed 50 cm. Be very careful in all windloaded areas, and looks for clues and cracking under foot.
This problem exists in the eastern side of the forecast region (Lake Louise area), and will remain dormant on Wednesday. More snow is needed to re-awaken these facets. Forecasters will be monitoring this problem closely as this week's storm develops.
50-60cm of storm snow overlies an old surface that will not bond well. Temperatures have increased and winds have picked up, creating stiffer slabs that are ripe to fail.
Winds have picked up from the W/SW and there is 50-60cm of new snow available for transport. Expect wind slabs to continue forming in lee areas at all elevations.
Bridging above this layer makes it stubborn to initiate; however, it will be big when it goes. A sudden warming, large additional snowload, large triggers, or surface avalanches may tip the scale. Be aware of thin locations as likely trigger spots.
15cm of new snow with variable wind directions and speeds have translated to wind loaded pockets of storm slab potentially 45cm thick overlying weak surface facets. More snow Thurs-Fri will add to this condition. Loose avalanches are also possible.
There has been no avalanches on this layer for two weeks.&nbsp; It is very unlikely this layer will be triggered while we remain in the Arctic high weather system.&nbsp; This layer will wake up again with more snow and wind loading.
The 10-20 cm of new snow has created touchy windslabs up to 30 cm thick with impressive propagations for their small size.
This dormant layer may start to wake up over the next few days with continued snow and wind loading, we are monitoring it closely. It is a weak basal facet layer that is a problem on the East side of the Divide (Lake Louise area).
The storm slab overlies a weak surface and is not bonding well. Many avalanches have already slid on this interface, but if a slope has not released, it should be considered a ticking time-bomb.
Wind slabs continue to develop in lee features at alpine and tree-line elevations. There is plenty of new snow to feed the wind slab development, so if winds pick up in the area you are skiing, expect the danger level to bump up a notch.
New snow with variable wind directions and speeds have translated to wind loaded pockets of storm slab potentially overlying weak surface facets. Loose avalanches are also possible.
Bridging above this layer makes it stubborn to initiate; however, it will be big when it goes. A sudden warming, large additional snowload, large triggers, or surface avalanches may tip the scale. Be aware of thin locations as likely trigger spots.
Winds will be forming slabs in the lee of ridge crests and exposed areas. These will be likely lying over facets or hard surfaces.
The basal depth hoar has been gaining strength and is lying dormant. We are waiting to see if this layer ``wakes up`` in thin snowpack areas this weekend with the new snow load.
Wind and warm temperatures have created higher density snow over the weak faceted crystals in almost any open areas. Very easy triggering means that skiers should treat all significant slopes with respect. SE to SW slopes seem extra touchy
The slab of well settled snow that protects the weak snow at the base of snowpack is not very thick in many areas. As the storms continue to place stress on the snowpack, and with significant surface avalanches expected, larger events could occur.
The storm slab is just getting thicker and heavier on the underlying weak interface. Any large, open slope that has not slid should be treated with caution, as it awaits just that extra amount of load from a person.
Strong winds in the alpine have redistributed the copious amounts of new snow into very touchy wind slabs. Expect to find extensive cracking and whumphing under your boards where the wind has affected the surface.
Pockets of wind loaded slab overly weak surface facets in sheltered areas at tree line and above.
Winds will continue to build slabs in the lee of ridge crests and exposed areas.  These slabs rest on facets or hard surfaces and have not bonded to these layers yet.
Based on current wind patterns from our remote weather stations, and available new snow for transport, wind-slabs will still be lurking in the alpine, approximately 20-60cm thick.
Some pockets of wind slab exist in sheltered alpine features at ridge line. No natural activity was observed today but with more snow and strong SW winds we expect the hazard to increase through Saturday night and Sunday.
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations that are occurring.
Do not forget that there is weak snow under the entire snowpack. In shallow areas this faceted snow has continued to weaken and the slab above it that is holding the snowpack together has become stressed by recent loading.
A 100 cm storm slab sits on a weak layer.&nbsp; Skiers and riders will likely trigger this layer in avalanche terrain.&nbsp; Remote triggering is a concern, watch out for adjacent slopes.
Exposed terrain will have wind deposited snow forming slabs.&nbsp; Moderate to strong winds this AM are rapidly loading avalanche start zones.
New windslabs are forming and adding to the load on lee aspects, primarily East facing terrain. Small windslabs may trigger deeper persistent slabs and increase the consequence of involvement.
Mod/strong wind today has developed this layer further. Expect it to be most reactive in the alpine on all aspects. In places, these wind slabs could be 60cm thick.
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations that are occurring.
Do not forget that there is weak snow under the entire snowpack. In shallow areas this faceted snow has continued to weaken and the slab above it that is holding the snowpack together has become stressed by recent loading.
20cm of additional load overnight totalling 1.2m over a weak layer which has been very reactive this past week. Riders have reported cracking, whoomphing and avalanches on this layer. This is in addition to any shallower storm snow instabilities.
Winds from the current weather pattern have been steadily in the moderate to strong range. Expect to see more slabby conditions at higher elevations reactive to human triggering.
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations that are occurring.
Do not forget that there is weak snow under the entire snowpack. In shallow areas this faceted snow has continued to weaken and the slab above it that is holding the snowpack together has become stressed by recent loading.
The interface between rapidly settling storm snow and the previous surface is characterized by crust and facets and new slabs are touchy in specific terrain - particularly steep, lee aspects below ridge crests.
Recent Southwest winds have created new windslabs.  Caution is warranted with crossloaded gully features.
The recent storm snow is settling and bonding to itself. There is still a poor bond at the storm snow interface (facets and surface hoar) down about 30-40 cm.
Continued south west winds have created fresh wind slabs in lee alpine terrain. These wind slabs are reactive to skier triggering.
As the slab over the weak layers down 100-140cm becomes more cohesive, it changes in how it reacts to a riders weight. The highly reactive stage may have passed but it is at a depth where triggering will be less frequent but much more dangerous.
We had strong winds yesterday morning and there's a concern the associated instabilities still exist up high.
The interface between rapidly settling storm snow and the previous surface is characterized by crusts. facets and surface hoar. New slabs are touchy in specific terrain - particularly steep, lee aspects at treeline and sub alpine elevations.
Recent southerly winds have created new windslabs. Caution is warranted with lee and crossloaded features.
The storm snow is starting to settle into a cohesive slab. As the slab stiffens, the weak layer will get harder to trigger, but the consequences will be greater. The nature and distribution of the weak layer means it will be with us for a while.
Recent SW winds are creating touchy windslabs in lee ALP and TL terrain. If triggered, these windslabs will step down to the Feb. 10th layer.
As the slab over the weak layers down 100-140cm becomes more cohesive, it changes in how it reacts to a riders weight. The highly reactive stage may have passed, but it is at a depth where triggering is less frequent but much more dangerous.
Strong winds overnight from the S-SW will have created surface wind slabs in the alpine and tree-line.
The cornices have undergone tremendous growth in the past week with all the new snow and winds. These cornices could be the large load to trigger the thick slabs overlying the Feb 10th interface. Expect large avalanches if caused by cornice-fall!
The persistent slab interface is a combination of crusts, facets, and surface hoar overlying a solid midpack bridging weak basal facets. It will be large if triggered. Caution on steep lee treeline and subalpine aspects with variable snow depths.
Caution on East aspects above treeline especially at ridgecrest transitions. Field patrol in Maligne area triggered size 2 of this nature where wind has firmed the recent storm snow into a windslab overlying previous layer of facets and surface hoar.
The recent storm snow is settling but a poor bond still exists on the storm snow interface. Natural activity has decreased but it is still possible for skiers to trigger this layer.
Recent SW winds have created touchy wind slabs on lee alpine and treeline terrain. These wind slabs are reactive to skier triggering.
The storm slab, which is 100-140cm thick and overlies a weak interface, is becoming more cohesive. However, the bond to the underlying interface is not showing much improvement. Skier triggering of this layer will have high consequence.
Fresh wind slabs from the previous couple days are evident in open alpine and tree-line elevations. Cracking and whumphing indicate that you have found them!
The large cornices adorning ridge-tops are the large, natural trigger that could initiate a very large avalanche. They are obvious overhead hazards to be avoided for the next long while.
This persistent weak layer consists of facets and surface hoar that were covered. It sits on a mixture of crusts and firm supportive snow. This seems to be of most concern at the Treeline and lower alpine elevations between 2000m and 2400m.
Lee aspects of ridgetops and terrain features should be carefully evaluated for windslabs.
A poor bond still exists between the storm snow and the Feb 10 interface. This interface is reactive to skier triggering. (see avalanche details)
Continued SW winds have created fresh wind slabs in the alpine
These recently formed slabs have proven to be very easy to trigger failing naturally and with light loads. Limit your exposure to significant slopes. Do not get taken by surprise by the long propagations or remote triggering that has been seen.
Do not forget that there is weak snow under the entire snowpack. In shallow areas this faceted snow has continued to weaken and the slab above it that is holding the snowpack together has become stressed by recent loading to the point of failure.
This problem is becoming increasingly challenging. The clues of instability, like cracking and whumphing are tapering off, but tests and continued avalanches indicate that this thick slab is triggerable and will produce very large avalanches.
Winds during the last week have transported the new snow, loading lee slopes and forming cohesive wind slabs. In areas where the snow is more cohesive, triggering of these slabs is likely. If triggered these slabs will likely step down deeper.
Yesterday, a slab 1-1.5 meters deep was observed that was triggered by cornice failure. Large cornices exist along ridges, and are may fail with fluctuating temperatures and sunny periods. These are big triggers that could initiate BIG avalanches.&nbsp;
This persistent weak layer consists of facets and decomposing surface hoar under 30cm of surface snow. It sits on a mixture of crusts and firm snow. It is of most concern at treeline and subalpine zones between 2000-2400m.
Where ever the wind has buffed the surface into a slab should be carefully evaluated particularly ridgetop transitions. Pockets of slab have also been created by valley bottom winds and have been found in exposed locations at treeline and below.
There is still a poor bond between the storm snow and the Feb.10 layer of facets and surface hoar. This interface is still very susceptible to human triggering.
Wind slabs have been forming at higher elevations from SW winds over the last few days.
A strong slab overlies a very weak layer buried down 1-1.5m. The snowpack now demands your respect, if you trigger this layer a large, high consequence avalanche will result.&nbsp; Use caution in shallow snowpacks, where triggering is more likely.
Use caution as you transition into exposed terrain.&nbsp; Triggerable wind slabs may be present on lee features.&nbsp; If triggered these slabs may step down to trigger deeper instabilities.
Yesterday, a slab 1-1.5 meters deep was observed that was triggered by cornice failure. Large cornices exist along ridges, and may fail with fluctuating temperatures and sunny periods. These are heavy triggers that could initiate BIG avalanches.
The persistent slab overlies 2 main weaknesses that will not go away anytime soon. A decomposing surface hoar-surface facet layer 30cm down and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
Carefully evaluate ridgetop transitions where winds have buffed the surface into a slab. It rests on the suspect surface hoar-surface facet layer 30cm down. Valley bottom winds have created slab pockets in exposed locations below treeline.
The storm snow interface down 40-70 cm still producing easy to moderate results. Natural cycle is over but still possible for skiers to trigger this layer.
Recent winds have produced wind slabs in lee alpine terrain. These wind slabs could step down to the storm snow interface resulting in large avalanches.
A strong slab overlies a very weak layer buried down 1-1.5m. The snowpack now demands your respect, if you trigger this layer a large, high consequence avalanche will result.&nbsp; Use caution in shallow snowpacks, where triggering is more likely.
Use caution as you transition into exposed terrain.&nbsp; Triggerable wind slabs may be present on lee features.&nbsp; If triggered these slabs may step down to trigger deeper instabilities.
Large cornices exist along ridges, and may fail with fluctuating temperatures and sunny periods. These are heavy triggers that could initiate BIG avalanches.
Carefully evaluate ridgetop transitions where winds have buffed the surface into a slab. It rests on the suspect surface hoar-facet layer 30cm down. Valley bottom winds have created slab pockets in exposed locations below treeline.
The persistent slab is intermixed with 2 main weaknesses that will not go away anytime soon, the decomposing surface hoar-facet layer and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
The natural cycle is over but the Feb 10th interface down 30-70 cm is still producing easy to moderate results, with lots of whumphing and some skier triggered avalanches. Stick to moderate angled, well supported terrain until things improve.
Recent winds have produced wind slabs in lee alpine terrain. These wind slabs could step down to the storm snow interface resulting in large avalanches.
Carefully evaluate ridgetop transitions where winds have buffed the surface into a slab. It rests on the suspect surface hoar-facet layer 30cm down. Valley bottom winds have created slab pockets in exposed locations below treeline.
The persistent slab is intermixed with 2 main weaknesses that will not go away anytime soon, the decomposing surface hoar-facet layer and thick layer of basal facets-depth hoar. Its spatial variability makes it difficult to predict.
&nbsp; These slabs have become a little less touchy but are now buried by an additional load (60cm over the past week). Limit your exposure to significant slopes. Do not get taken by surprise. Long propagations are still likely.
&nbsp; 60cm of new snow over the past week with transport tapering off the past 5 days. Loose dry concerns could step down to the weak faceted layer.
The natural cycle is over but the Feb 10th interface down 25-60 cm is still producing easy to moderate results, with lots of whumphing and some recent skier triggered avalanches. Stick to moderate angled, well supported terrain until things improve.
Recent winds have left isolated wind slabs in lee alpine terrain. If triggered these wind slabs could step down to the Feb 10th storm snow interface resulting in large avalanches.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">The slab overtop the weak layers down 1-1.5m continues to settle and become more cohesive. This problem will take a while to heal and requires good terrain management. Be particularly weary of open unsupported slopes and convex rolls below tree line.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">Cornices have grown from the last storm cycle. Sunshine and the warmer alpine temperatures may cause them to break. Shaded slopes may have cornices in the sun well above you. This hazard is the type of load that can trigger the buried weak layers.
Snowpack tests on this layer today produced easy results. Despite the easy results no avalanche activity was noted. This is a layer to approach cautiously over the next few days.
This layer is becoming less reactive. However, be observant of lee areas and how the layer may react at a local level.
Evaluate ridge top transitions where winds have buffed the surface into a slab. It rests on this suspect layer 30cm to 45cm down.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The 1-1.5m slab over the weak layers continues to settle and become more cohesive. This problem will take a while to heal and requires good terrain management. Be wary of open, unsupported slopes and convex rolls, particularly at tree-line and below.
The large cornices adorning the ridge-crests will see lots of sunshine and warming today, potentially destabilizing them and causing them to fall. The mass of these &quot;freight-trains&quot; smacking the slope could be the trigger to start a very large slide.
The Feb.10 interface of weaker crystals is slow to gain strength. Slab properties above this layer are becoming stiffer, and human triggering is very possible. These seem to be the most touchy on solar aspects where there is a buried suncrust.
These are becoming less reactive, but look for wind slabs in lees of alpine features and exposed areas.
At higher elevations wind slabs will be more abundant and thicker, similarly in cross winded valleys existing glacial terrain. The Feb 10th weakness has recently been found down 20-70cm between 2,200m-2,400m, but is hard to trigger.
We have seen very few avalanches from this layer in the past 2 weeks. A strong midpack , when present, prevents triggering from all but the largest loads. Where the snowpack is shallow triggering will be considerably easier.
The 1-1.5m slab overlying the Feb 10th weak layer is slowly bonding to this interface, but is still reactive in tests. This problem requires good terrain management, such as avoiding large convexities and sticking to supported features.
Cornices are a definite concern, given their size and mass. If they were to fail, they could be the big trigger to initiate an avalanche in the deeper layers.
Carefully evaluate ridge top transitions and start zones where the winds have pressed the surface into a slab. This slab rests above a persistent facet layer 30cm to 45cm down.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
Now 80 to 130 cm thick, these slabs threaten serious consequence. While the potential for triggering has dropped, do not get taken by surprise: long propagations and remote triggering may still be possible. Limit your exposure to significant slopes.
Westerly winds picked up at ridge top on Tuesday building wind slabs in the Alpine. There is a lot of snow that remains available for transport: North and East winds forecast over the next few days may create slabs in unusual locations.
A weak, persistent layer is buried under a thick slab. This layer is becoming more difficult to trigger, but if triggered will propagate widely producing a very large avalanche. Choosing appropriate terrain is key in managing this problem.
Cornices may be destabilized by fluctuating temperatures. If they fail, they could be the big trigger to initiate an avalanche in the deeper layers.
Moderate north winds have begun to load and stiffen up the surface slabs in open areas. This slab rests above a persistent facet layer 30cm to 45cm down.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The Feb 10th layer continues to produce sudden collapse test results in many areas. The cold temperatures will tighten things up a little and begin to weaken the slab over this layer but it is still a concern in many of the areas in the park.
As this weak layer, buried down around 1 m, gains strength human triggered avalanches are still possible. Areas of concern are open, unsupported slopes, convex terrain and thin snowpack areas.
Cornices may destabilize by fluctuating temperatures.  If they fail, they could be the big trigger to initiate an avalanche in the deeper layers.
Moderate north winds have stiffen up the surface slabs in open areas. This slab rests above a persistent facet layer 30cm to 45cm down.
The strong mid-pack is bridging the layer well through the forecast area. Its spatial variability over the terrain does make it difficult to predict and snowpack tests show it to be very weak. Be careful in shallow start zones.
The Feb. 10th layer is still a prominent feature in the snowpack producing variable results. We are seeing less activity over the past few days, but is still a concern in many regions of the forecast area.
Recent winds combined with cold temperatures have created widespread 10-20cm thick wind slabs up to pencil stiffness. These will be smaller in size and wont be a problem for a long time, but are a concern in steeper unsupported terrain.
As this weak layer, buried down around 1 m, gains strength human triggered avalanches are still possible. Areas of concern are open, unsupported slopes, convex terrain and thin snowpack areas.
Strong winds, including reverse loading from northerly winds have created pockets of wind slab. Feel for these deposits of firm, wind packed snow that will be getting buried by new snow today.
New snow is expected to come in steadily with south winds and may slowly overload this interface. Watch for a reverse loading pattern from the south to north aspects because of the shift in wind direction.
This layer is slowly gaining strength however test results continue to show that wide propagations are possible in some areas which would lead to severe consequences. Sudden collapse results and low scores in propagation saw tests are still common.
Yesterdays North winds created thin windslabs in many locations which are now covered with new snow. The increasing W winds will also build new winds slabs over the next two days. Probe for these with your poles and avoid steep wind loaded slopes.
Soft slabs can be expected at higher elevations which is sitting over a weak layers of sun crust and facets. As winds and snow amounts increase this slab will tighten up and become more reactive.
The sun crust/surface hoar layer down 1-1.5m is still producing hard sudden results in snowpack tests. This indicates that the layer is difficult to trigger but will propagate widely if it does.
These slabs became less sensitive with cold temperatures and increasing depth. Now as conditions change with rapid loading and warming, limit your exposure to significant slopes. Do not get taken by surprise. Long propagations may still be possible.
Variable winds have been actively creating windslabs over the last week. Now with more snow and moderate to strong SW winds in the forecast, expect to encounter slabs as you enter open terrain.
This layer is slowly gaining strength however test results continue to show that wide propagations are possible in some areas which would lead to severe consequences. Sudden collapse results and low scores in propagation saw tests are still common.
The new snow and moderate SW winds are staring to build soft slabs in lee areas above tree line. Probe for these with your poles and avoid steep wind loaded slopes. Sluffing out of steep terrain is also expected as more new snow arrives.
Steady snowfall and light to moderate winds may produce new windslabs in exposed areas.
Soft slabs exist at higher elevations. They sit atop a variety of surfaces (suncrust, facets, wind slab), and have been touchy to human-triggering. As more snow falls and the temp's warm up, expect them to become cohesive and more reactive.
The suncrust/surface hoar layer down 1-1.4m is still producing hard, sudden results in snowpack tests. This indicates it is stubborn to trigger, but if initiated, it will propagate widely, producing large avalanches.
New low density storm snow is shedding from steep terrain in the alpine and may have enough mass to ruin your day.  Expect sluffing on steeper slopes at all elevations.
Although winds are expected to remain relatively light, there have been several wind events in the past 48 hours with shifting gusty winds in the moderate to strong range that may have produced new windslabs at upper elevations.
This layer is gaining strength but tests and whumphing still show there is potential for wide propagation in some areas.&nbsp; Any avalanche on this layer could lead to severe consequences.
Soft to hard windslabs, generally 30 cm thick, can be triggered in lee terrain.&nbsp; In steep terrain, the snow is gaining cohesion to act like a storm slab. The new snow sits on a low density cold layer of snow that will take several days to bond.
Several loose snow avalanches were observed pouring over cliffs today to size 1.5.&nbsp; Winds will continue to be gusty for the next 2 days. Pay attention to terrain over head.
Field teams found touchy soft slabs in open alpine and tree-line lee features yesterday. These slabs appeared to be failing within the new snow, but some were popping very easily off the suncrust on solar aspects.
Lingering deep (1-1.4m) in the snowpack, the surface hoar/facet/crust sandwich continues to produce hard, sudden results in tests. If a large enough trigger gets this layer to fail, avalanches will be very large.
Steep alpine faces are sluffing regularly as new snow accumulates.
This avalanche problem remains a concern and may become more sensitive to triggering as temperatures rise and penetrate into the snowpack.
Lots of fresh snow and moderate southerly winds have created touchy wind slabs 40-60 cm deep in the alpine.
Test results on the Feb 10 layer generally in the moderate range but still show lots of potential for good propagation if triggered. Recent storm snow may be enough to activate this layer (see avalanche details). Lots of uncertainly with this layer
A touchy slab lurks on the slopes, and were easily triggered by field teams and artillery control at all elevations. As it becomes more cohesive from snow-load and warming temp's, we expect this slab to propagate easily.
The facet/crust &quot;sandwich&quot; is buried 120-150cm below the surface now. It is still producing hard, sudden results in tests, indicating that it can will propagate if a large enough trigger hits it. Avalanches digging into this layer will be large!
Little wind has accompanied the new snow of the past two days. Sluffing out of steep terrain may be of concern, particularly for ice climbers.
This problem has yet to materialize in full force, but with rising temperatures and forecast winds we expect this surface condition to become quite touchy over the weekend.&nbsp;
Test results on the Feb10 layer mainly in the moderate range with potential for wide propagations if triggered. The recent snow has been shown to overload this layer in the Kootenay,Sunshine, Yoho areas, and less so in the Louise region and Hwy. 93N.
Lots of recent snow and moderate westerly winds have created touchy wind slabs 40-60cm thick in many wind exposed areas.
Up to 55cm of new snow has arrived over the last week. Warm temperatures are helping it settle but it is siting on a variety of sun crust, old windslab or facets. Warm temps on Sun could provide a trigger for this layer.
Moderate to strong westerly winds have been building windslabs on lee slopes below ridge crests in the alpine and at treeline. These will continue to build over the next few days. Expect to encounter slabs as you enter open terrain.
These slabs became less sensitive with the increasing snowpack depth. As temperatures warm to ridgetop for Sun limit your exposure to significant slopes. Do not get taken by surprise. Long propagations may still be possible.
Warming temps through the storm created a punchy storm slab that is sitting on a variety of weak surfaces. Avalanche control proved that this slab is reactive and produced large avalanches. The slab may be more reactive in wind-exposed terrain. 
This last storm, and the forecast dump of snow this weekend, may wake a weak persistent layer up. This layer, buried ~1.5m deep, is still reactive in snowpack tests and if triggered will produce very large and destructive avalanches.
Sluffing out of steep terrain is a concern, particularly for ice climbers. Loose slides are overloading the snowpack in the alpine and have triggered slabs below.
Open areas at tree line and above are beginning to show signs of wind effect and slab development.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> This layer is especially touchy around Sunshine and in Kootenay on steep features at treeline and below. There have been several </span><a href="https://www.facebook.com/photo.php?fbid=635006586549334&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">skier triggered avalanches</span></a><span class="s_AA239A9B"> to size 2 in past 36 hours and </span><a href="https://www.facebook.com/photo.php?fbid=635006599882666&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">explosive triggered avalanches</span></a><span class="s_AA239A9B"> to size 3 today.
There are thin windslabs from the last storm on lee features that are reactive to explosives (size 1-2). Expect new windslabs to develop with incoming snow and wind over the weekend.
60 to 80 cm of warm/moist snow has formed a rider triggerable slab. Natural avalanches are expected this afternoon with rising temperatures and more snow load. Remote triggering is also a concern, watch out for adjacent slopes.
A deep weak layer buried at the end of January is down around 1.5 m. Although we have not observed any recent skier-triggering of this layer, artillery control triggered this layer on the west side of the park, releasing a size 3.5.
Recent storms with warm temps and West winds have created slabs and built cornices. Wet slabs are failing BTL and solar aspects, cornices and windslabs are failing at TL and above.
The weak February facet layer is now buried up to 170cm deep. Large loads such as cornices have triggered this layer where it is deep and it has failed with sluffing and heating where it is shallow. Long propagations are possible with this layer.
Solar heating will likely result in these events occurring to ridge tops Saturday. Warm temps as well as the rain expected Sunday will cause these events at low elevations. Be aware that these small events may act as the trigger for deeper slabs
Storm snow showing dangerous slab properties, use extra caution when entering steep open areas.
Wind slabs more prevalent in the Ice Fields area where moderate SW winds and mild temps have created touchy slab properties in all open areas.
Dense snow is overloading the Feb.10th interface and will continue through Sunday. 
Strong winds, new snow and warm temperatures are forming wind slabs in lee terrain and are likely to be triggered with light loads such as a skier.
80 to 100 cm of warm/moist snow has formed a rider triggerable slab. We are currently seeing natural avalanches in the storm snow, some running to end of runnouts. Minimize your exposure today by skiing in mature forest.
A deep weak layer buried at the end of January is down 1.8 to 2 m.&nbsp; Smaller avalanches could step down and trigger as large, high consequence avalanche on this layer.
Very little natural activity has been observed in the storm snow in the lower elevation bands. Loose wet slides will become the concern as the storm passes and the sun bakes the solar aspect.
We have had very limited observations in the alpine due to visibility. Be especially cautious as you approach open areas and ridge crests with visible wind effect.&nbsp;
The recent storm snow and wind slabs will slowly begin to bond to the lower layers in the snowpack but this will take some time. Choose conservative terrain with no overhead hazard until this has a chance to bond.
The Feb 10th layer continues to be reactive in many areas especially at tree line. Avoid any steep terrain until this has a chance to bond.
30cm of heavy snow with wind fell yesterday over much cooler and lighter snow. This combination is what caused a large avalanche cycle. Storm snow instabilities will still exist in the upper 1m and will need some time to bond to be trusted.
A sun crust down ~1m is well within the range of human triggering on south and west aspects. The February surface hoar/crust layer down ~1.5-2m which can reawaken with a heavy trigger such as a large cornice release.
There has been several avalanches observed&nbsp; running in the recent storm snow. Avalanche control produced 30 - 70 cm thick slab results on NE aspects.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> The recent snow has overloaded this layer. Although natural activity is tapering, this layer remains </span><span class="s_2823317B">VERY</span><span class="s_AA239A9B"> touchy as seen by two very </span><a href="https://www.facebook.com/photo.php?fbid=636202979763028&amp;set=a.589955951054398.1073741839.145133538869977&amp;type=1&amp;theater" target="_blank"><span class="s_9255B882">close calls </span></a><span class="s_AA239A9B">today.
In thinner snowpack areas, many avalanches are initiating as a storm or persistent slab and are stepping down to this layer.
The storm slab will settle over the next few days, but is currently very touchy. Most avalanches are initiating on this layer and quickly stepping down to the deeper weak layers.
Storm snow instabilities are present from snowpack tests yesterday. There is wind affect above treeline and lingering windslabs may exist in exposed areas.
Cornices have grown from the last storm. Strong solar radiation with warming temperatures will mean an increased hazard of cornice fall for today and tomorrow.
2 buried weak layers have been reactive this week. Down ~1m, is a sun crust on south and west aspects. The other is the other is Feb. surface hoar/crust layer down ~1.5m-2m which still shows wide propagation potential in snowpack tests.
There has been several avalanches observed running in the recent storm snow.
Very warm temperatures and rain to 2300 meters on March 8 and 9 has settled the near surface instabilities with cooler night time temps. Thin wind slabs may be present in some aspects on this layer.
The weak facet layer is now buried by up to 170cm in treeline and alpine areas and below treeline is found down 50cm. Many avalanches fell over the weekend on this layer and it is a concern that may persist for some time. Triggering is possible!
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> Natural avalanche cycle is over but conditions are still very touchy and ripe for skier triggering. Any avalanche triggered has the potential to be very</span><a href="https://www.facebook.com/media/set/?set=a.636554726394520.1073741856.145133538869977&amp;type=1#!/photo.php?fbid=636554863061173&amp;set=a.636554726394520.1073741856.145133538869977&amp;type=3&amp;theater" target="_blank"><span class="s_9255B882"> large.</span></a><span class="s_AA239
Storm slab is still touchy and has potential to step down to deeper persistent layers.
The recent wind slabs from the latest storm are settling out, but they will be stressed by today's sun and rapid warming. The first couple of hours of intense sun will likely bring activity to this layer.
Cornices will also feel a little heavier today with sun and warming. Give them a wide berth. A party of 4 nearly went tumbling off Castor Peak's west ridge when they triggered a cornice that they were standing on.
There are two layers of concern. The first is a sun crust on S-SW slopes, buried ~1m deep. The second is the Feb 10 surface hoar/facet complex, down 1.5-2m. Both exhibit sudden failures, meaning there is potential for wide propagation.
Recent winds have created a slab condition in the alpine. Cornices are growing and we observed two cornice triggered avalanches today.&nbsp;
Natural activity has slowed down on this layer, but we have seen large avalanches over the past few days with the new storm snow overloading the Feb.10th interface. In some cases we have seen this step down to the basal facets in thin snowpack areas.
Mod to strong Westerly winds will be stiffening the snow surface and transporting snow to lee aspects. These will be sensitive to human triggering for the next few days.
Watch locally for daytime warming in steep, solar features.
The surface slabs are settling out and bonding to the older interface, but if the temperatures rise more than forecasted, expect touchy conditions on south and west aspects.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">The Mar 2 and Feb 10 layers are buried 1m and 1.5-2m respectively. Test results are still exhibiting sudden planar results in the hard range, meaning a deep slab could </span><a href="https://www.facebook.com/photo.php?v=637161176333875" target="_blank"><span class="s_9255B882">propagate widely.</span></a><span class="s_AA239A9B">
Large cornices still linger along ridge-crests. These beasts have the potential to trigger deeper layers, so give them a healthy dose of respect and steer clear of them.
Recent winds have created a slab condition in the alpine. Cornices are growing and we observed two cornice triggered avalanches yesterday.
In thinner snowpack areas, this layer is still touchy as shown by numerous large whumphs and sudden collapse results today. It is especially reactive on solar aspects where there is a buried sun crust and may be less reactive in deeper snowpacks
Recent moderate to strong west winds have stripped fetches and loaded the lees. Lee slopes will be quite touchy and the loading may be enough to trigger natural avalanches
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">We are expecting over 50cm of snow this weekend, with strong westerly winds. This will rapidly load the persistent weak layer down 1.5-2m. This layer continues to be </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://avalancheinfo.net/Images/BLong-8436.jpg" target="_blank"><span class="s_9255B882">reactive and surprise people</span></a><span class="s_AA239A9B"> throughout the region, producing impressive avalanches.
Lots of new snow, with wind, through the weekend will form a new storm slab. This slab will likely be most reactive where it overlies suncrust, but will also bury small surface hoar. If triggered, this slab may also step down deeper.
New snow Fri is starting to build windslabs on lee slopes. The storm snow forecast for Sun/Mon will build these deeper. These will need some time to settle.
The layer down 70-170 cm is still active as demonstrated Thur with avalanche control work up Akamina. Any slope not yet slid should be a concern. Windslabs, cornices, storm slabs or wet loose avalanches could step down and result in large avalanches.
This layer is still touchy in thin snowpack areas (especially where there is a buried sun crust), and large whumps and sudden collapse results have been found. With limited observations this layer now seems less reactive in deeper snowpack areas.
Lee slopes will be loaded from recent strong westerly winds. With more wind and snow in the forecast, these wind slabs will increase in likelihood and size through the weekend.
With the new snow, expect the Feb 10th layer of facets, surface hoar, and some buried sun crust to &quot;wake up&quot;, especially in thin and variable snowpack areas.&nbsp;
We will have wind slab development in any exposed areas with the new snow and forecasted mod-strong west winds.&nbsp; Failure of these may step down to the Feb. 10th interface.
We've had a significant amount of snow overnight. Combined with the mild temperatures, the southerly winds which have started to pick up and the crust which it sits on, the new storm slab will be highly reactive to human triggering.
This sudden heavy snow load is likely to reawaken the deeper persistent weak layers creating very large avalanches. Avoid crossing avalanche paths until the storm ends and temperatures cool down.
As yesterdays avalanche indicates, the basal weaknesses are still susceptible to human triggering. Use caution in steep, shallow areas that have not previously avalanched.
Closely associated to the new storm slabs, wind-slabs will be located at higher elevations in direct lee areas. Because of wind transport the wind slabs will be thicker (up to 40cm) than the storm slabs and potentially more touchy.
The avalanche cycle in the alpine has eased from earlier in the week but we will see it ramp up with more snow on Saturday night. This loading pattern is looking perfect for increasing the size&nbsp; and instability of existing cornices.
The avalanche cycle in the alpine has eased off but we expect this to ramp up with the onset of heavy snow and strong winds on Saturday night.
Where wind slabs overly the February 10th facet layer very touchy conditions exist. This is borne out by numerous incidents of skier accidental and remotely triggered avalanches in the last few days.
The 35cm of snow that fell in the last day has been observed to travel far and fast when it fails. Loose snow slides are likely with any solar affect particularly at lower elevations.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
65cm has fallen over the last 4 days with strong winds yesterday. On solar aspects this has buried a thick sun crust. Venturing out into larger terrain is not a good idea at this point as this new load will need some stabilization time.
Down around 1-1.25m is a buried crust from early March. Backcountry users have been reporting whoomphs and remotely triggering this layer prior to this latest storm. Extra caution on steep south and west slopes where the crust was well formed.
The February deep instability, down1.5m-2m will need a large trigger to be initiated. Although the sudden snow loading has ended, it may get triggered by a large cornice for or from a shallower avalanche.
Wind slabs can be found on sheltered lee aspects in the alpine and if triggered could step down and release a larger slide.
The 30-40cm of snow from the last few days is sitting on crusts or moist snow that could provide a poor bond. Daytime heating could trigger these instabilities on south facing aspects but they may persist on cooler north aspects for a few days.
Previous windslabs are lurking just under the surface and now there is a lot of snow available for transport to start building new ones.
The chance of triggering the deep weak layers from early February are diminishing but these layers have not completely disappeared. Any slope that have not slid should be suspect for possible large destructive avalanches.
The Feb 10th layer continues to produce whumphs, natural and remote avalanches and skier triggered avalanches. It is especially sensitive in thinner or cross loaded snowpack areas and places with a buried sun crust.
The recent storm slabs are between 40 and 80cm thick. In general they seem to be bonding well but use caution in steep or wind loaded features.
Lingering storm slabs instabilities may exist from the last storm two days ago and the associated wind. 2 crusts have been recently buried by this. Caution in more exposed areas where the wind had a chance to stiffen the snow.
A weak layer from early March within the range of rider triggering may catch you by surprise. Triggering this layer is more likely on steep south and west aspects where the crust had a chance to fully form.
The deep instability from mid February , down around 2m will need a large trigger to be initiated like a cornice fall or shallower avalanche. It should not be overlooked by backcountry users due to the  large consequences should it be triggered.
We are seeing less activity with this problem as the days go by. It is still touchy and what is left is a low likelihood but high consequence situation if it is triggered.
The storms slabs will continue to settle. However, as they settle, they will become more cohesive and the likelihood of triggering will be the same for a few days yet.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and crossloaded features in the alpine.
With lots of new snow available for transport, new windslabs will be forming in exposed areas as the winds increase in the next couple of days.
35cm of recent snow is settling rapidly. Although this snow appears to be bonding well, caution is warranted in steep terrain. It is a good idea to test the storm snow interface prior to committing to your line.
The recent storm snow has been redistributed by winds. The resulting soft slabs sit atop various old surfaces, including crusts on solar aspects and small surface hoar on northerly aspects. The slabs will remain reactive for a couple more days.
The early March crusts are buried by over a metre of snow, but are still triggerable by people. They are more likely to fail on steeper S and W aspects.
In Rogers Pass, the Feb 10 surface hoar/crust sandwich is buried over 2m deep. We are still seeing hard, sudden test results on this layer. If a very large trigger smacks the slope, there is the potential for a huge avalanche.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and crossloaded features in the alpine.
With lots of snow available for transport, we suspect recent windslab formation in the alpine in exposed areas.
35cm of recent snow is settling rapidly. Although this snow appears to be bonding well, caution is warranted in steep terrain. It is a good idea to test the storm snow interface prior to committing to your line.
Activity on the Feb.10th of facets, surface hoar and buried suncrust is starting to taper off, and it is a lowered likelihood with large consequences scenario.  Some slides have been observed to step down to ground in thin snowpack areas.
Storm slabs formed in the last few days will be less sensitive to triggering as time goes on.  Forecast snow may build on these on Thursday.
The recent storm snow is settling into a cohesive slab, particulary in wind affected areas. Various weak layers within, and just below, the slab exist and may be triggered by skiers or snowboarders. It may become more reactive during sunny periods.
This layer is patchy which makes it difficult to predict. It is likely to be most reactive on solar aspects where it is comprised of a sun crust with surface hoar. If triggered it has properties and is deep enough to result in a large avalanche.
The late Jan/early Feb persistent weak layer is still active. Very large and impressive avalanches have been triggered by rapid loading during storms, avalanche control, and skiers remotely triggering (fortunately in a safe spot) from shallow areas.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
Windslabs are forming in wind prone areas below lee ridgelines at treeline and above.
Another 15 cm of new snow fell on top of this past weekend's 35cm storm. Although this snow appears to be bonding well, caution is warranted in steep terrain. Test the storm snow interface prior to committing to your line.
Feb 10 shears tightening up in deep snow pack areas west of the divide. In shallower snowpack areas this interface still producing whoomphing and easy to moderate shears.
Recent snow combined with mild temperatures and West winds have created soft slabs. These slabs are sitting on a variety of surfaces including rain crusts, sun crusts, old wind slabs and the interface to the previous storm snow and are 25-40 cm deep
New snow is sluffing off of very steep terrain and moving with skiers on steep slopes. Manage your group carefully and be aware of your sluff. Avoid confined terrain features such as gullies where these small slides could focus and gain more energy.
As the snowpack cools this week it is gaining strength. The weak layer from early Feb may still be an issue but this is likely limited to thin areas at higher elevations under current conditions.
Snow amounts have slowly been accumulating over the last few days and storm snow instabilities may catch you by surprise. Caution on unsupported slopes or wind affected areas. This new snow is likely to produce some fast sluffing on steep slopes.
This layer is deep enough to cause a large avalanche and shallow enough to be triggered by people, a dangerous combination. It's been most reactive on solar aspects where the crust is thickest and most likely to be triggered from shallow snow areas.
The deepest instability within our snowpack is down around 2m. Large triggers have produced very big avalanches on this layer into last week. It remains on our watch list, and it's another reason to avoid shallow snowpack areas.
Slowly this layer is becoming less reactive, but it remains a concern. Field tests, particularly on southern aspects, confirms this. It's now down 80-120 cm and more likely triggered from thinner areas or by larger loads.
A 5 cm thick suncrust with facets on top exists on solar aspects with moderate sudden shears and is down approximately 40 cm.. An avalanche triggered on this layer could step down to the Feb 10th layer resulting in a larger avalanche.
Confined to immediate lee of alpine features.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
Windslabs are forming in wind prone areas like below lee ridges at treeline and above.
Trickling snow over the last 4 days amounted to 60cm at tree line. Instabilities in the upper snowpack from the recent snow load may exist particularly in exposed areas that saw some wind.
Reports of whoomphing and natural activity observed on this layer yesterday indicate it's volatility. This layer is deep enough to cause a large avalanche and shallow enough to be human triggered, a dangerous combination.
Large triggers have produced big avalanches on this layer, down ~2m. It remains on our watch list and it's another reason to avoid shallow snowpack areas.
We are finding moderate to hard sudden collapse results on the Feb.10 interface. Thin and variable snowpack areas will be the easiest places to trigger this interface.
A 5cm thick suncrust with facets on top exists on solar aspects with moderate, sudden shears down 40-60cm. An avalanche triggered on this layer could step down to the Feb.10 interface causing a larger avalanche.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
Windslabs are forming in wind prone areas like below lee ridges at treeline and above and cross-loaded gulley features.
Storm slab instabilities may exist and may pop with human triggering, solar warming and newly formed soft slab in the lee of ridge crests.
The Mar 2nd crust is dwn around 1.25m. The slab overtop the weak layers down 1-1.5m continues to settle and become more cohesive.
The Feb 10 layer may be a concern with very large triggers or thin snowpack areas in rocky terrain.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
Windslabs continue to form and be covered by intermittent snowfall. Pay attention to wind affected terrain above treeline.
The Feb 10 layer will be touchier in the Eastern portion of the forecast area, less in the West. In addition to Feb 10, the Mar 13 layer, a suncrust on South aspects, can be found down 40-60cm. Snowpack tests on this layer produced moderate results.
Storm slab instabilities newly formed soft slab in the lee of ridge crests may exist and pop with human triggering.
Snowpack tests yesterday show the Mar 2 layer down ~1m to still be reactive with large consequences if triggered. Shallow snowpack areas, like slopes that have lots of rocks poking out, seem to be the most likely areas for this to happen.
Another deep weakness in the snow pack is the February surface hoar/crust layer. Large triggers, such as a cornice fall or a running avalanche, will be needed to step down to this layer.
The &quot;drought layer&quot; (Feb 10) has been sensitive in the past week contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
Wind slabs continue to form and be covered by intermittent snowfall. Pay attention to wind affected terrain above treeline.
The Feb 10 layer is touchier in the eastern portion of the forecast area, less in the west. In addition to Feb 10, the Mar 13 layer (suncrust on south aspects) can be found down 30-60cm. Snowpack tests on this layer have produced moderate results
The late March sun is packing a lot of punch. If the sky doesn't cloud over tmrw, we may see some natural activity out of steep rocky solar terrain.
With significant warming Tue and  incoming precipitation for the rest of the week, expect these slabs to become more reactive. Small changes in aspect and elevation seem to change the nature of these slabs so monitor what you are skiing on closely.
This weak faceted layer from early Feb may still be an issue in isolated thin and high elevation locations. With the changing weather in the next few days, snow is likely to be moving: a falling cornice or small avalanche could trigger this layer.
The early March weak layer down ~1m is reactive in snowpack tests with hard sudden results. We still see sporadic large avalanche events that fail on this layer. Choose supported slopes that have uniform snow cover.
Deeper in the snowpack is the February surface hoar crust layer. Large triggers, such as heavy snowfall or cornice fall will be needed to get this layer to fail.
The &quot;drought layer&quot; (Feb 10) has been quietly dormant. Expected snowfall this week could 'wake' this layer up. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.
Ever present in the forecast area, expect slabs in wind prone areas like below lee ridges at treeline and above and cross-loaded gulley features.
The Feb 10 layer is touchier in the eastern portion of the forecast area, less in the west. In addition to Feb 10, the Mar 13 layer (suncrust on south aspects) can be found down 30-60cm. No shears were found on Mt Field today during snowpack tests.
New snow overnight will have formed soft slabs in alpine and tree-line lee features. In wind-sheltered areas, it will likely be good quality skiing.
The early March weak layer is still reactive with hard, sudden planar results in tests. Sporadic large avalanche events are still occurring on this layer, so heads-up with the new loading overnight. Stick to supported features today.
Lingering deep in the snowpack is the Feb 10 surface hoar/facet/crust layer. A large event occurred north of Rogers Pass 2 days ago, reminding us that a large trigger could create a very widely propagating avalanche with devastating results.
Expect to find new slabs in wind prone areas on lee ridges at treeline and above and in cross-loaded gulley features. Loading continues in these open areas and can overload the slope quickly.
Lee features continue to load and the potential exists to trigger these deep instabilities. Carefully evaluate your time spent under overhead hazard before committing to terrain.
There are two layers of concern in the upper meter of the snowpack that continue to produce shears in isolated areas and have a high degree of uncertainty. Be very mindful of this problem in areas that have not previously avalanched.
40 cm of loose snow is available to be blown into soft slabs by the wind. So far this storm has brought light winds, but we expect small windslabs to develop at the highest elevations where there has been some wind.
Loose dry sluffs are running easily and gaining mass as they progress down the slope. Generally only small slides are anticipated, but watch your exposure to cliffs and trees as these can easily knock you off your feet.
Yesterdays new snow bonded poorly to the snow below and became very reactive as the temps warmed up. Loose, moist avalanches were easily triggered by skiers. These avalanches were at the smallest &quot;knee-twisters&quot; but some grew to size 2.5.
Weak layers from early March, now buried a meter deep, are still reactive in tests. They are most likely to be triggered on solar aspects where sun crusts exist. Smaller avalanches may step down to these layers, resulting in a big avalanche.
A persistent weak layer from late Jan/early Feb remains a serious concern as it continues to be responsible for very large avalanches. This layer is variable in its distribution, is now buried up to 2m deep, is hard to trigger, and harder to predict.
Expect slabs in wind prone areas like below lee ridges at treeline and above and cross-loaded gulley features.&nbsp;
he &quot;drought layer&quot; (Feb 10) has been dormant for over a week now. Warming temperatures and continued wind-loading could 'wake' this layer up.
The new snow fails easily on steep slopes: Manage you group carefully and avoid confined features such as gullies.
Up to 25cm&nbsp; of new snow over the March 26 interface will quickly form a slab with mild temps and the forecast winds. On solar slopes these slabs will be found over a crust and may be particularly touchy.
70 to 110cm of snow is now settling above the early March Crusts. Variable shears persist in these slabs and they are well worth bearing in mind particularly as heating becomes more of a factor in the days and weeks to come.
Watch out for sluffs, as several big ones have been noted today and yesterday - particulary on steep, south facing terrain where a firm suncrust underlies this new snow. Check your exposure and make sure you don't get pushed into any obstacles.
In areas of the park with a weaker snowpack we remain concerned about the Feb 10 layer of facets and surface hoar located in the middle of the snowpack. This layer remains, and caution is advised in specific areas such as the burns in Kootenay Park.
20cm of new snow from earlier this week has bonded poorly to the snow below. It is especially reactive on solar aspects, where it is rapidly destabilized by even a little bit of sun. On lee aspects, soft slabs may exist from windloading by SW winds.
Weak layers from early March, now buried a meter deep, are still reactive in tests. They are most likely to be triggered on solar aspects where sun crusts exist. Smaller avalanches may step down to these layers, resulting in a big avalanche.
A persistent weak layer from late Jan/early Feb remains a serious concern as it continues to be responsible for very large avalanches. This layer is variable in its distribution, is now buried up to 2m deep, is hard to trigger, and harder to predict.
Wind slabs in immediate lee areas have the potential to step down and create large full depth avalanches.
This avalanche condition is quite uncertain and large slopes should be treated with caution. Especially those with recent wind loading or those that face the sun.
More sluffs observed today on South and North aspects, up to size 2. Watch your exposure to steep terrain overhead, especially if the wind gusts pick up.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> In areas with uneven, shallower or weaker snowpacks, we remain concerned with the Feb 10th midpack layer of crust/facets/surface hoar (Kootenay burns) and the </span><a href="https://www.facebook.com/media/set/?set=vb.145133538869977&amp;type=2#!/photo.php?v=643191412397518&amp;set=vb.145133538869977&amp;type=2&amp;theater" target="_blank"><span class="s_9255B882">basal facet layer.</span></a><span class="s_AA239A9B"> Stick to lower angled well supported terrain in these areas.
This is not yet a wide spread issue and only a few soft wind slabs to size 2 were observed today in the immediate lees of terrain. Monitor slab development with wind gusts tomorrow as this may develop into more of a problem.
A weak layer down 20-30 cm is still reactive to skier-triggering. Use caution on unsupported features and convex terrain. Watch for changing conditions as temperatures warm up today and surface crusts deteriorate.
Weak layers from early March, now buried a meter deep, are still reactive in tests. They are most likely to be triggered on solar aspects where sun crusts exist. Smaller avalanches may step down to these layers, resulting in a big avalanche.
Expect slabs in wind prone areas like below lee ridges at treeline and above and cross-loaded gulley features.
The &quot;drought layer&quot; (Feb 10) has been dormant for over a week now. Warming temperatures and continued wind-loading could 'wake' this layer up.
In areas with uneven, shallower or weaker snowpacks, we remain concerned with the Feb 10th midpack layer of crust/facets/surface hoar, and the basal layer. Choose conservative, well supported terrain in these areas.
These are mainly confined to the immediate lees of ridges. Monitor slab development with wind gusts tomorrow as this may develop into more of a problem.
The recent storm slabs have been slow to bond and remain in the skier triggerable range. Lee aspects in the alpine and treeline elevations are the more likely areas for a slide to propagate. Low elevations may have possible moist sluffs.
more reactive on solar aspects.
The Mar 2nd crust is down around 1.25m. The slab overtop the weak layers down 1-1.5m continues to settle and become more cohesive. The Feb 10 layer down 2m is a major low probability high consequence concern.
Although this problem still remains, triggering still remains possible. As time goes by it will become less likely that people will be able to trigger this layer.
Some light wind at the ridge tops has produced windslabs. Likelihood of triggering and layer thickness is uncertain.
Expect slabs in wind prone areas like below lee ridges at treeline and cross-loaded gulley features in the alpine.
Although the Feb10 layer (down 60-90cm) has been dormant in the past several days, it remains a concern and has produced several large avalanches this week. Large triggers and shallow areas may still produce avalanches failing at this interface.
We`ve had some incremental loading, 30cm in 3 days. The sun is expected to poke through the clouds today so expect conditions to become more dangerous as the day progresses, specially on the solar aspects if that happens.
Many weak layers are buried within the snowpack in the upper 2m. These are all deep enough to cause large avalanches that will inflict significant damage. Shallow areas and day time warming are most likely to trigger them.
Expect slabs in wind prone areas like lee ridges at treeline and cross-loaded gulley features in the alpine.
Although the Feb10 layer (down 60-90cm) has been dormant in the past several days, it remains a concern and has produced several large avalanches this week. Large triggers and shallow areas may still produce avalanches failing at this interface.
Several avalanches have been observed deep in the snowpack over the past 24-hours. Avoid shallow areas where the snowpack is weakest. These avalanches are very unpredictable, so choose terrain that avoids steep, rocky slopes.
Over 60 cm of snow has fallen over the past week, and that snow has now settled into a cohesive slab. Caution is advised in all avalanche terrain at treeline and above, in particular one should avoid exposure to avalanches during the heat of the day.
Recent warm temps and wind have contributed to the formation of a soft slab that has failed naturally over the last few days. This slab will become more sensitive to triggering with heating and could be triggered in steep or unsupported terrain.
Daily heating and the sun will create moist snow at low elevations and on solar aspects. Intense periods of radiation will trigger avalanches or cause cornice failures that could trigger avalanches as well.
Strong solar radiation is expected today. Think about getting off sun exposed slope when the crusts that formed overnight break down. Watch for loose avalanches below cliffs as an indication that things are becoming dangerous.
The sun will get deep into the snowpack today and could reawaken one of the many buried weak layers. Avoid slopes where rocks are evident on the surface as they are likely to attract more heat to trigger those layers.
Manage your groups exposure to the overhead cornice hazard. Remember that even though you may be on a shaded north aspect, if there's a cornice above you on the ridge it will be baking in the sun.
This problem represents a classic low likelihood high consequence situation. Areas that have not previously avalanched will be more susceptible to triggering.
Storm slabs will continue to settle. These slabs will be touchy on Southern aspects in the afternoon.
Recent storm snow has settled into a slab and is touchy on steep, unsupported terrain.
There is a fair bit of uncertainty associated with weak mid-pack layers.&nbsp; Although isolated, there have been numerous natural avalanches in the past 2 days that have failed in the mid-pack or on the ground.&nbsp;
The April sunshine is strong. If it pokes through the clouds today, expect solar aspects to destabilize quickly, especially at lower elevations.
There are numerous sliding layers buried in the upper 1-1.5m of the snowpack. If we see any strong sunshine today, there could be avalanches stepping down to these layers.
The spring-time cornices are large and looming overhead. They weaken with sunshine and warming temperatures, so plan your day to be away from them as things warm up.
The ground level weakness of facets and depth hoar appears to have woken up, and the main avalanche problem right now is occasional large avalanches failing on the ground. Avoid, or carefully select any large steep slopes at treeline or above.
Strong winds in front of Thursday's storm, combined with another 10cm of snow will make for small, but touchy windslab conditions at the higher elevations by mid to late afternoon on Thursday.
The upper 1-1.5m of the snowpack has numerous sun and temperature crusts within it. These may become sliding layers with day-time warming and the possibility of a strong April sun popping onto the slopes.
We have seen isolated activity on depth hoar and facets located near the base of the snowpack in thin areas mainly E of the divide. The main problem right now is triggering the occasional large avalanche that fails on the ground. 
With increased winds and some snow in the forecast, watch for wind slab formation in the lees of ridge crests over the next 24 hours.
This layer may be buried up to a meter below the surface in wind loaded areas. In such areas the upper snowpack may be providing bridging strength. Areas of shallow snowpack particularly adjacent to wind loaded slopes are of greatest concern.
Soft slabs were observed in the Alpine by a field team yesterday in the Asulkan drainage, and rising winds this morning will likely create more. Avalanche activity this morning is attributed to this problem.
Be aware that small avalanches have the ability to trigger larger step down avalanches.
Moderate SW winds in the Icefields are creating windslab conditions along alpine ridgelines cross-loaded features.
Results from this layer were seen on March 31st during a earlier warming event after a prolonged cool period.
Very low confidence in this basal layer of depth hoar as daily avalanches size 2-3 and large whumphs continue to be reported. Mainly a problem on the East side of the Continental Divide or in shallower snowpacks in Kootenay Park.
Wind slabs 15-25 cm thick were found in immediate lee terrain and failed easily in snowpack tests.
20cm of new snow with some added wind created some reactive conditions at the higher elevations these past two days. Watch for cracking and more 'slabby' feeling snow as you venture on the upper mountain specially in the lee of ridge features.
Many crusts on solar aspects are buried within the 1m range. At this depth they can be triggered by humans. Avoid shallow snowpack areas where it is most likely to initiate an avalanche on this layer.
Skiers looking for dry snow on the shaded aspects should frequently test the surface layers. A shear persists down about 30 cm with preserved stellar snow flakes and surface hoar. Caution in steep and unsupported terrain is advised.
Daily heating and the sun will create moist snow at low elevations and on solar aspects. As crusts break down avalanches will result. Cornices will also be affected by this heating and could trigger persistent slabs.
With significant heating in the forecast for Monday and Tuesday deep slabs may become active. Large loads such as falling cornices or smaller avalanches could trigger large avalanches on the March crusts or even the February facets.
Southwest winds are creating windslabs along alpine ridgelines and cross-loaded features. Their thickness and interface is variable depending on aspect, elevation, and localized weather influences.
Weak basal facets and depth hoar remain intact and should be on your radar. This deep weakness is difficult to predict and has severe consequences. The snowpack above appears to be bridging the weakness; however, allot of spatial variability exists. 
Thin areas mainly E of the divide are still susceptible to triggering basal layers causing larger avalanches. Big triggers such as cornice failures could be enough load to trigger an avalanche on the ground level
Isolated wind slabs in the lees of alpine ridge crests will still be susceptible to human triggering in the short term.
The snow load has steadily increased with winds up high. A surface hoar/crust layer is buried 30-40cm depending on aspect. As this snow becomes moist it will become more susceptible to human triggering.
The upper snowpack consists of many buried crusts on solar aspects. Triggering these layers is most likely from slopes where the snowpack is shallow and/or if there is strong solar radiation even if this is for brief moments.
Windslabs have developed along ridgelines and crossloaded features. Their thickness and interface is variable depending on aspect, elevation, and localized weather influences. It may be present on S aspects over slippery sun crust. Evaluate for this.
Weak basal facets should be on your radar. It is difficult to predict and would have severe consequences if triggered. Allot of spatial variability exists. Field team reports large tree shaking whumph Sunday, in the trees, E aspect, at 1800m.&nbsp;
Thin areas mainly E of the divide are still susceptible to triggering basal layers causing larger avalanches. Big triggers such as cornice failures could be enough load to trigger an avalanche on the ground level.
Isolated wind slabs in the lees of alpine ridge crests will still be susceptible to human triggering in the short term.
As freezing levels rise things will become more unstable particularly in steeper terrain and at lower elevations. Snow that is very heavy and creates pin wheels is an indicator that snow stability is decreasing.
We've had enough snow in the past few days to warrant some caution up high. Winds have been steady and combined with rising temperatures things will slab up a some more.
The deeper instabilities that exist in our snowpack can reawaken with the increase in temperatures or added weight of snow/rain. Avoid those shallow snowpack areas where triggering these layers is most likely.
Skiers looking for dry snow on shaded aspects should frequently test the surface layers.&nbsp; A shear persists down about 30 cm&nbsp; with preserved stellar snow flakes and surface hoar. Caution in steep and unsupported terrain is advised.
Daily heating and the sun will create moist snow at low elevations and on solar aspects. Intense periods of radiation will trigger avalanches or cause cornice failures that could trigger avalanches as well.
Although unlikely, a large load such as a cornice failure or another avalanche could trigger all of the snow above these strong crusts. Significant and sustained heating or rain may also allow these slabs to become active such as is forecast Monday.
Windslabs have developed along ridgelines and crossloaded features. Their thickness and interface is variable depending on aspect, elevation, and localized weather influences. Incoming winds and snow Tuesday afternoon will add to this condition.
The deep nature of this weakness is difficult to predict and would have severe consequences if triggered. A lot of spatial variability exists. Field team reports large tree shaking whumph Sunday, E aspect, at 1800m.
">Daily heating and the sun will create moist snow at low elevations and on solar aspects. As crusts break down Loose Moist or even Wet Slab avalanches will result. Cornices will also be affected by this heating and could trigger persistent slabs.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">Skiers looking for dry snow on the shaded aspects should frequently test the surface layers. A shear persists down about 30 cm with preserved stellars and surface hoar. Recent winds and new snow have contributed to the growth of these slabs.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B"> </span><span class="s_E6FD2046">With significant heating in the forecast for Tuesday deep slabs may become active. Large loads such as falling cornices or smaller avalanches could trigger large avalanches on the March crusts or even the February facets.
With warming temperatures we expect to see an increase in avalanche activity on our deep facet layers especially in thinner snowpack areas or in places where a cornice fall could act as a large trigger. Minimize exposure to large slopes.
Moist surface sluffing and small wet slabs are likely on all aspects and elevations as freezing levels climb on Tuesday.  Stick to mellow terrain as even a small wet slide can be very powerful.
Several cornice failures have occurred in the region over the last couple days. These can act as large triggers and cause failures on the basal facets. Warm temperatures and strong winds will cause this hazard to increase over the next few days.
With high freezing levels, snow is particularly unstable on steeper terrain and at lower elevations. This heavy snow will pinwheel down the mountain, gathering mass, and is a clear indicator of snow stability decreasing.
The recent storm snow has not fully bonded to the underlying crust and surface hoar layer. Combined with the warm temp's, it has become a touchy surface slab that is reacting in higher elevation lee areas.
We may see the deeper instabilities reawaken with the warm temperatures, and possibly rain, moving into the snowpack. Try to avoid shallow, thin areas where a person could trigger a deeper weakness.
The warmer temperatures have the potential to wake this layer up, as demonstrated today on Cascade Waterfall (size 3).
Low elevation south aspects will be particularly susceptible to loose wet avalanches. This problem will be most active in the warm afternoons.
Cornices are quite large at the moment. Try to minimize your exposure to these features, especially with the warmer temps in the afternoon.
Continued wind loading and warming temperatures have increased the triggering sensitivity of this weakness. Strong SW winds on Tuesday were present across the region but most noticeable in the Columbia Icefields area
Strong SW winds on Tuesday have created slab conditions. SE aspects where buried sun crusts may provide a sliding surface should be approached with caution. Thin slabs will likely step down to the basal weaknesses near ground producing large slides.
High to extreme winds in the last 24 hours have formed wind slabs in exposed Alpine and Treeline areas where the snow was still soft and dry. Pockets of good dry snow may be found in protected North aspect areas above 2400m.
Be aware that step down avalanches are possible if storm slabs or wind slabs are triggered in wind loaded areas.
Daytime warming in thinner snowpack areas or larger triggers such as cornices may trigger this weakness. Thin rocky snowpack areas may also be susceptible to skier triggering.
Several natural cornice failures have been observed in the last two days caused by new snow loading and warm temperatures. Minimize exposure to overhead cornices.
Gusty SW winds have formed new wind slabs in immediate lee areas.&nbsp;
Most avalanches regardless of initial form are stepping down to ground. These are most common from shallow snowpack areas where there is little bridging strength in the midpack and the thermal energy is greatest. Rocky areas are also dicey.
Strong South and Westerly winds are transporting the 10-15cm of new snow from the 8th. Rain fell below 1,800m. Field tests at 2,300m produced an easy shear above an old sun crust on the 9th. At lower elevations the slab is less well developed.
There may be lingering surface slabs at alpine and tree-line elevations, due to the strong winds accompanying the last snowfall.
The large size 3.5 from Moccasin Flats 36 hours ago shows the persistent slabs have not gone away. Larger triggers, like cornices or surface avalanches, may step down to deeper layers.
Most observed avalanches in the past week are stepping down to this layer. Frequently observed between 2200-2400m and triggered by  wind loading, cornice falls of solar exposure. Most common in shallow areas or near rock outcrops.
Strong to extreme southerly winds continue to form slabs dating from early April. Slab activity stepping to ground quickly. Buried sun crust can present a sliding layer as seen at 2300m near Marmot. Sheltered snow can be found at treeline and below.
Although conditions are improving, it is still a good idea to avoid large, steep (&gt;35 degree) slopes in areas where the total snowpack depth is &lt;200cm. Use your probe and to check for snowpack depth and strength.
April is cornice season, and on most days we observe a cornice failure. Expect these on an almost daily basis this time of year, as the mountains shed their snowpack. Try to avoid traveling under cornices, or do it early while it's still cold out.
With poor freezes the last few nights and clear days, solar heating has allowed for widespread activity. Expect this activity to dissipate with cooling and clouds but to resume as the sun returns.
West winds continue to transport snow at treeline and above on shaded aspects. Expect to find slabs to increase in their development as you ascend into the alpine
The lower layers of the snowpack remain weak in many areas but are most likely to be triggered by a large load such as a cornice or smaller avalanche in thin areas at high elevations.
The 10-15cm of snow from a few days ago was redistributed by strong winds, creating windslabs in exposed alpine and tree-line locations.
Without a good refreeze, there is less structure to the snowpack to prevent it from stepping down into the lower persistent weaknesses. The large size 3.5 from Moccasin Flats 2 days ago illustrates the potential destructive force lingering out there.
Colder weather will add a little more stability to the snowpack. It is still too early to move out onto big alpine lines.
Most observed avalanches in the past week have stepped down to this layer. Triggers include: wind loading, cornice fall and solar exposure. Most commonly triggered from shallow areas or near rock outcrops.
Gusty moderate SW winds continue to form slabs dating from early April. Sheltered snow does exist at treeline and below.
New snow in the past weak is possible to skier-trigger.  Watch for hard, wind-deposited snow on lee features in the alpine.  Storm slabs failing on crusts is possible at lower elevations.
Weak layers buried deeply in the snowpack are still releasing naturally and producing avalanches up to size 3.5.  Warm temperatures and solar inputs elevate this hazard. Large, heavy triggers like cornice falls could trigger a large avalanche.
Triggering this layer is most likely during warm periods and from thin rocky locations. Large triggers such as cornices may also trigger this deep weakness. This hazard will gradually increase as temperatures warm up over the next few days.
With tomorrows clear skies and sunshine we will likely see loose wet slides on steep S aspects in the afternoon.  Cornice failures are also possible as things warm up. Plan to finish your trips by early afternoon.
Fat windslabs are present below ridgelines and on cross-loaded features. The bond between these slabs and the snow beneath is uncertain, however, warm temps and solar exposure will weaken them.
Large triggers such as cornice fall or smaller slab/loose wet avalanches may trigger this weakness. Skier could trigger from shallow areas or near rock outcrops.
Slopes that have been baking in the sun can fail as a slab on crusts and on higher alpine elevations on North lee aspects.
The Mar 2nd crust and Feb 10 layer can be triggered by heavy loads such as cornices or loose wet slides, a likely scenario with the forecast strong solar inputs.
The big question for this avalanche problem is heat. Under current cool conditions it is nearly dormant. However, when we receive the first real blast of heat...pay attention.
Low elevation solar aspects are the main features to be aware of. Of course, if it remains cool little activity should be expected, add heat and south slopes could come alive with avalanche activity.
Windslabs are present below ridgelines and on cross-loaded features.  No avalanche activity has been observed on these slabs but field teams have not tested bonding.
If the sun has been baking slopes, there is the possibility of a slab avalanche failing on buried crusts. In the alpine slab avalanches could be triggered on lee North apects.
The Feb 10 layer is the monster that can be triggered by heavy loads. It is still a 3-5cm thick sandwich complex layer of SH, FC and crusts.
This problem seems to have calmed down in the last week, but we remained concerned and expect&nbsp; to see more of these avalanches when the temperatures warm up again.
Spring is cornice season and a great time to try and totally avoid exposure to cornices. If you must go under one, move quickly and reduce your risk by reducing your exposure time.
Snow flurries on Tuesday will add to the danger near ridge tops and into the alpine. Good skiing will likely exist in sheltered locations at lower elevations.
Even short bursts of solar heating can rapidly affect the snow this time of the year. With mild temperatures in the forecast, watch for rain to affect the snow at lower elevations.
Isolated and thin windslabs have been built in open features and can be found poorly bonded to crusts. Watch for these to grow or to become hidden with incoming snow.
Weak snow deep in the snowpack should be kept on the radar for those traveling to more exposed places. A large load such as a cornice fall or significant and sustained heating may wake this problem up in many locations in the near future.
Thin, variable slab is present in the alpine and tree-line. It appears to be bonding with the underlying interface, but some pockets in lee features may surprise a person.
Deeper persistent layers will require a large trigger to initiate, or a couple of people hitting a thin, weak spot in the snowpack.&nbsp;
This condition is most prevalent in the alpine near ridges and open bowl features. Near treeline the slabs are most threatening when sitting over buried sun crust on southerly facing slopes.
2 weak layers within our snowpack, down ~1m and ~1.2m that are producing tests results to be concerned about. Whoomphing and cracking may not be as prevalent due to the depth of the layer but if triggered the slab is likely to propagate.
Lingering shallower slabs at higher elevations may still be out there.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This problem is the culprit for the vast majority of the avalanches in the past week. Watch for remote triggers.
The wind affect will be encountered above treeline and above in wind exposed terrain.
Storm snow will continue to be redistributed by predominantly NW winds at ridge tops in the high alpine . Storm slab could become more active if warmer temps and or higher winds develop.
Dry loose snow avalanches are still possible in steep rocky and unsupported terrain.
Persistent weak layers buried down ~1m and ~1.3m are cause for concern. As temperatures rise the likelihood of triggering will increase and they are capable of producing very large avalanches. Be especially cautious on planar open slopes.&nbsp; </span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Watch for remote triggers.
The wind affect will be encountered above treeline and above in wind exposed terrain.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggers.
The wind affect will be encountered above treeline and above in wind exposed terrain.
Persistent weak layers buried down ~1m and ~1.3m are cause for concern. They are capable of producing very large avalanches and may be triggered by skiers. As temperatures warm over the next few days the likelihood of triggering will increase.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggers.
Many places have been ravaged by winds from many directions, especially in the alpine.  Watch for pockets of hard slab near ridge tops and cross loaded features..
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Watch for remote triggers.
The wind affect will be encountered above treeline and above in wind exposed terrain.
Storm snow has evolved into a persistent slab mainly around  treeline. 
Persistent weak layers buried down ~1m and ~1.3m are cause for concern. They are capable of producing very large avalanches and may be triggered by skiers. Trigger points include steep alpine terrain, thin areas, and unsupported open slopes.
Storm snow has evolved into a persistent slab mainly around treeline. Widespread whumphing in open treeline areas was enough to keep our forecasting team on lower angle terrain without overhead exposure.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggers.
Many places have been ravaged by winds from many directions, especially in the alpine. Watch for pockets of hard slab near ridge tops and cross loaded features.
Thin windslabs can now be found at treeline and can also be seen at lower elevations around our ice climbs. Extensive wind transport is evident in the alpine areas.
At high elevations cooler temps will have only allowed thin crusts to form above the weak November Facets which may remain a possibility for triggering for some time. Use caution until more is know about alpine areas.
Persistent weak layers buried down ~1m and ~1.3m are cause for concern. They are capable of producing very large avalanches and may be triggered by skiers. Trigger points include steep alpine terrain, thin areas, and unsupported open slopes.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes. Widespread whumphing in open treeline areas.
These slabs are found on exposed slopes and produced moderate to hard test results with failures in the facet layer near the bottom of the pack.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggering.
Although cold temperatures have reduced the tension in many wind slabs there are places that have been ravaged by winds from many directions, especially in the alpine. Watch for pockets of hard slab near ridge tops and cross loaded features.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes. Widespread whumphing in open treeline areas.
These slabs are found on exposed slopes and produced moderate to hard test results with failures in the facet layer near the bottom of the snowpack.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggering.
Mild temperatures and moderate W winds will cause wind slabs to develop in exposed areas at tree line and above. Watch for pockets of hard slab near ridge tops and on cross loaded features.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. This is the problem responsible for the majority of the avalanches in the past week. Watch for remote triggering.
Mild temperatures and moderate W winds will cause wind slabs to develop in exposed areas at tree line and above. Watch for pockets of hard slab near ridge tops and on cross loaded features.
Recent storm snow may be sitting on good sliding surfaces such as surface hoar and crust. The winds picked up overnight so watch out for areas that may be wind loaded.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes. Widespread whumphing in open treeline areas.&nbsp; Propagation from&nbsp; whumphing is possible on steep unsupported slopes.
These slabs are found on exposed slopes and produced moderate to hard test results with failures in the facet layer near the bottom of the snowpack.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Owing to the delicate structure of these layers we expect this problem will persist for the foreseeable future. 
Mild temperatures and westerly flow will cause wind slabs to develop in exposed areas at tree line and above. Watch for pockets of hard slab near ridge tops and on cross loaded features.
Recent storm snow may be sitting on good sliding surfaces such as surface hoar and crust.&nbsp; Watch for small pockets of slab reactive on steep solar aspects. Expect increasing hazard as the temperature rises.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.
The primary problem in the snowpack is the interface between the recent storm snow and the November 6th and 24th facet/crust interfaces. Owing to the delicate structure of these layers we expect this problem will persist for the foreseeable future.
Mild temperatures and westerly flow will cause wind slabs to develop in exposed areas at tree line and above. Watch for pockets of hard slab near ridge tops and on cross loaded features.
Thin windslabs can now be found at treeline. This slabs are thin and very localized and are easy to stumble into as they appear mid slope in front of you. With the warmer temps expected these slabs may become more sensitive before they improve.
At high elevations cooler temps have only allowed thin crusts to form above the weak November Facets which may remain a possibility for triggering for some time. Use caution TL and above especially in thin or variable areas.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes. Widespread whumphing in open treeline areas. Propagation from whumphing is possible on steep unsupported slopes.
These slabs are found in sheltered locations, predominantly in high alpine locations.
Rapid warming with mixed rain and snow is leading to an increasing avalanche hazard.&nbsp; Recent storm snow may be sitting on good sliding surfaces such as surface hoar and crust.
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.&nbsp; Once initiated avalanches triggered in the storm snow may step down to the deep persistent weak layers.</span></p><p class="p_CC664AAA"><span class="s_AA239A9B">
Recent wind loading has produced new touchy wind slabs on lee and cross loaded features in exposed areas. Some new natural avalanche activity, one skier accidental, and sudden planar compression tests were all observed today.
Storm snow has evolved into a persistent slab mainly around treeline and sheltered alpine slopes.
The primary problems in the snowpack are the Nov. 6th and 24th facet/crust interfaces. These layers are most reactive in alpine/ treeline areas where the wind has slabbed up the surface snow.
The primary problems in the snowpack are the Nov. 6th and 24th facet/crust interfaces. These layers are most reactive in alpine/ treeline areas where the wind has slabbed up the surface snow.
A heavy storm slab is building rapidly with moderate precipitation, warm temps and strong winds. It will bond poorly to the snow below and natural avalanches are occurring. Storm slabs may step down deeper resulting in very large avalanches.
Persistent weak layers that were very reactive earlier this season are expected to wake up again with the rapid loading that is occurring. These layers are capable of wide propagations and producing very large and destructive avalanches.
Recent wind loading has produced new touchy wind slabs on lee and cross loaded features in sheltered areas.
Snowpack tests continue to show collapse at several levels of weak facets near the base of the snowpack.  Avoid large slopes during this warm spell; wait for future cooling when the snowpack will stabilize and conditions will improve.
Snowpack tests continue to show collapse at several levels of weak facets near the base of the snowpack. Avoid large slopes during this warm spell; wait for future cooling when the snowpack will stabilize and conditions will improve.
A heavy storm slab that formed over the past 2 days will bond poorly to the snow below. Large natural avalanches have been occurring, running into valley bottoms. Storm slabs may step down deeper resulting in very large avalanches.
Persistent weak layers that were very reactive earlier this season are expected to wake up again with the rapid loading that is occurring. These layers are capable of wide propagations and producing very large and destructive avalanches.
Persistent slabs at treeline and sheltered sub-alpine slopes are starting to get overloaded by recent snow and wind loading. Two size 2 skier remote slab avalanches were triggered in the Nigel Basin today.
Recent wind loading has produced new touchy wind slabs on lee and cross loaded features.
Above 2000m the crust above the weak November Facets is variable. Triggering may remain a possibility for some time. Use caution Treeline and above especially in thin areas.
Strong southwest winds have stripped windward areas and created fresh wind slabs in&nbsp; lee terrain at and above treeline. These windslabs are reactive to skier triggering.
Snowpack tests show that the weak facets at the base of the snowpack continue to be a concern.
Strong southwest winds have stripped windward areas and created fresh wind slabs in lee terrain at and above treeline. These windslabs are reactive to skier triggering.
Snowpack tests show that the weak facets at the base of the snowpack continue to be a concern.
A heavy storm slab that formed over the past 3 days will bond poorly to the snow below. Large natural avalanches have been occurring, running into valley bottoms. Storm slabs may step down to deeper instabilities.
Continued warm temperatures and rain at lower elevations are ideal to wake up buried persistent weak layers capable of wide propagations and producing very large and destructive avalanches.
Snowpack tests show that the weak facets at the base of the snowpack continue to be a concern.
Strong southwest winds have stripped windward areas and created fresh wind slabs in lee terrain in the alpine. These wind slabs will be reactive in the short term.
Snowpack tests show that the weak facets at the base of the snowpack continue to be a concern.
Strong southwest winds have stripped windward areas and created fresh wind slabs in lee terrain in the alpine. These wind slabs will be reactive in the short term.
Persistent slabs at treeline and sheltered sub-alpine slopes are starting to get overloaded by new snow and wind loading.
Continued wind loading has produced very touchy wind slabs on lee and cross loaded features.
Storm snow layers up in the alpine are still suspect. We had 25cm of heavy snow over Dec 5 weak layer with strong winds. Some sunshine and the weight of a rider could be enough to trigger an avalanche.
Big triggers like a cornice fall is capable of initiating this layer which would produce a very large avalanche as it would encompass the entire snowpack. Watch your exposure to overhead hazard like cornices when the sun comes out.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
Recent strong southwest winds have stripped windward areas and created fresh wind slabs in lee terrain in the alpine. If triggered these wind slabs can easily step down to the basal facets resulting in a larger avalanche than expected.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
Recent strong southwest winds have stripped windward areas and created fresh wind slabs in lee terrain in the alpine. If triggered these wind slabs can easily step down to the basal facets resulting in a larger avalanche than expected.
Deep persistent slabs at treeline and sheltered sub-alpine slopes still reactive from shallow areas within the snowpack.
Loaded, cross-loaded and re-loaded lee features still producing touchy slabs.
Storm snow layers in the alpine are still suspect. The last storm cycle deposited ~25cm of heavy snow on an existing week layer in the upper snowpack. Some sunshine and the weight of a rider could be enough to trigger an avalanche.
This layer is still failing with big triggers. A cornice fall in steep terrain is capable of triggering this instability and causing a large avalanche. Watch your exposure to overhead hazard like cornices.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
Deep persistent slabs at tree line and sheltered sub-alpine slopes can be triggered from shallow areas within the snowpack.
Approach loaded, cross-loaded and re-loaded lee features with caution.
Moderate to hard sudden planar test results down 25cm and 50cm were observed yesterday from the field team on Bruins Ridge. Because of this we will keep this as a concern for a little longer.
There is a weakness at the bottom of the snowpack in some areas throughout the Park from the November crust.  Although it is difficult to trigger it should not be discounted. Large loads, like a cornice fall or triggering from a thin spot might do it
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
These deep persistent slabs at tree line and sheltered sub-alpine slopes may be triggered from shallow areas within the snowpack.
Approach loaded, cross-loaded and re-loaded lee features with caution.
Following significant heating, these slabs are gaining strength as they refreeze. The facets and associated crust found near the base of the snowpack likely only remain a problem at elevations above at least 2400m but we have not traveled this high.
The new snow moves naturally and with skier traffic above the surface crust. Use caution in confined terrain such as gullies or in high consequence terrain such as above cliffs.
After a completely calm two days since the new snow fell, the wind is just now beginning to stir. Expect to find freshly formed windslabs in the days to come.
Weakness at the bottom of the snowpack in some areas throughout the Park from the November crust.&nbsp; Thin snowpack areas on a large alpine slopes are most suspect to release this layer. It is difficult to trigger but will have large consequences.
These deep persistent slabs at tree line and sheltered alpine slopes may be triggered from shallow areas within the snowpack.
Approach loaded, cross-loaded and re-loaded lee features with caution.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
These deep persistent slabs at tree line and sheltered alpine slopes may be triggered from shallow areas within the snowpack.
Approach loaded, cross-loaded and re-loaded lee features with caution.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
These deep persistent slabs at tree line and sheltered alpine slopes may be triggered from shallow areas within the snowpack.
Approach loaded, cross-loaded and re-loaded lee features with caution.
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
The SW winds have blown for two days to affect ridgelines at treeline and above. Expect to find small, thin, freshly formed windslabs lurking near ridgelines and in the lee of open features. We would expect these to be more developed in the alpine.
The snowpack gained strength this week as it cooled down. The facets and associated crust found near the base of the snowpack likely only remain a problem at elevations above at least 2400m.
10-20cm of new snow will be quite reactive on a buried surface hoar layer, especially in steep terrain. Expect natural and skier triggered sluffing. Watch out for slab formation when warm temperatures, strong winds and additional snow arrive.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
Natural avalanche activity has subsided but snowpack tests show that the weak facets at the basal level continue to be the big issue. The slab that rests on this weak structure may indicate some strength in places but in fact very little has changed.
These deep persistent slabs at tree line and sheltered alpine slopes may be triggered from shallow areas within the snowpack.
Approach loaded, cross-loaded and re-loaded lee features with caution.
This SH layer now sits below 20-30cm of new snow. A storm slab is developing at higher elevations and wind-exposed areas. These slabs will bond poorly to the SH interface. Avalanches on this layer may run farther than expected, easily entrain snow.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
Natural avalanche activity has subsided but snowpack tests show that the weak facets at the basal level continue to be the big issue. The slab that rests on this weak structure may indicate some strength in places but in fact very little has changed.
Light snowfall and moderate SW through into Sunday will lead to the development of wind slabs on sheltered aspects. Any significant accumulations that overly existing surface hoar crystals could produce touchy conditions in a few isolated areas.
The interface between the strong mid-pack and weaker basal facets is most susceptible to human triggering from shallow rocky areas.
A storm slab is developing, 25 to 30cm thick, at higher elevations and wind-exposed areas. These slabs will bond poorly to the surface hoar layer which it sits on. Avalanches on this layer may run farther than expected and easily entrain snow.
The November crust weaknesses at the bottom of the snowpack are difficult to trigger, but if they fail the consequences will be very high.
Natural avalanche activity has subsided but snowpack tests show that the weak facets at the basal level continue to be the big issue. The slab that rests on this weak structure may indicate some strength in places but in fact very little has changed.
Wind loading producing wind slabs on lee and cross loaded features predominately below alpine ridge lines.
This layer can be found above 1900m and can be triggered from shallow areas in the snowpack.  A strong rain crust exists below tree line up to 1900m.
Natural avalanche activity has subsided but snowpack tests show that the weak facets at the basal level continue to be the big issue. The slab that rests on this weak structure may indicate some strength in places but in fact very little has changed.
A 50cm slab sits over a very obvious surface hoar layer that reacted to human triggering yesterday. Sensitivity varies depending on drainage and elevation but the layer was observed to be almost everywhere and is a very real threat to riders.
The new snow load continues to slowly build and this could reawaken the Nov 9 layer at the bottom of the snowpack. Shallow avalanches running on the surface hoar can also trigger this layer. This will be even more of a concern in the coming days.
Natural avalanche activity has subsided but snowpack tests show that the weak facets at the basal level continue to be the big issue. The slab that rests on this weak structure may indicate some strength in places but in fact very little has changed.
Wind loading producing slabs on lee and cross loaded features predominately below alpine ridge lines.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Field teams are still experiencing the occasional whumph from these weak layers collapsing.
West and South slopes have largely been stripped of snow but expect to find these slabs in the lee areas of exposed features above treeline. Also watch for crossloaded features such as gullies and bear in mind that the small new cornices are weak.
A 50cm slab sits over a very obvious surface hoar layer that reacted to human triggering yesterday. Sensitivity varies depending on drainage and elevation but the layer was observed to be almost everywhere and is a very real threat to riders.
The new snow load continues to slowly build and this could reawaken the Nov 9 layer at the bottom of the snowpack. Shallow avalanches running on the surface hoar can also trigger this layer. This will be even more of a concern in the coming days.
Natural avalanche activity has subsided but snowpack tests show that the weak facets at the basal level continue to be the big issue. The slab that rests on this weak structure may indicate some strength in places but in fact very little has changed.
New snow and high winds will increase the hazard in open lee areas.
Natural avalanche activity has subsided but snowpack tests show that the weak facets at the basal level continue to be the big issue. The slab that rests on this weak structure may indicate some strength in places but in fact very little has changed.
Strong west wind on Monday night at ridge top has created windslabs in lee areas. These windslabs are between 20 and 40cm thick and easily triggered by skiers/riders.
Wind loading producing slabs on lee and cross loaded features at all elevations. Field teams today experienced cracking and whumphing in the new wind slab.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Field teams are still experiencing the occasional whumph from this layer. Surface slides or cornice collapse could trigger this deep persistent weakness.
A 50cm slab sits over the December 17th surface hoar layer that reacted to human triggering yesterday. Sensitivity varies depending on drainage and elevation but the layer was observed to be almost everywhere.&nbsp; This layer is a real threat to riders.
The new snow load continues to slowly build and this could reawaken the Nov 9 layer at the bottom of the snowpack. Shallow avalanches running on the surface hoar can also trigger this layer. This will be even more of a concern in the coming days.
The weak snow above the crust is new primed with a big enough slab for there to be serious consequences of triggering an avalanche. Isolated areas that hold surface hoar should be treated with even more respect.
The storm snow may now be hiding wind slabs in the lee areas of exposed features above treeline. New slabs will build with the 20-25cm of storm snow now available for transport. These will become larger and more easily triggered as the wind picks up.
Wind loading producing&nbsp; soft slabs on lee features at and above treeline. A field team on the 24th found a generally stable snowpack with hard and moderate shears in the upper snowpack at&nbsp; alpine elevations. Good skiing in sheltered spots.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Surface slides or cornice collapse could trigger this deep persistent weakness.
Twenty to forty cms of recent storm snow is bonding poorly to previous surfaces and is reactive to skier triggering.
A weak and facetted basal layer exists at the bottom of the snowpack. Smaller avalanches may step down to this weak facetted layer.
Twenty to forty cms of recent storm snow is bonding poorly to previous surfaces and is reactive to skier triggering.
A weak and facetted basal layer exists at the bottom of the snowpack. Smaller avalanches may step down to this weak facetted layer.
A very touchy surface hoar layer is buried by a 50 to 70cm thick storm slab. This layer is widespread, and is likely to be triggered anywhere is has not yet failed. It is easily triggered by light loads (ie you), from distances of up to 100m away.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Storm slab avalanches may step down to deeper layers, including the the Nov 9 layer at the bottom of the snowpack. The resulting avalanche would be very large. Some avalanches triggered by artillery control yesterday </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Moccasin%20Flats%202014-12-24.pdf" target="_blank"><span class="s_9255B882">stepped down to deeper layers</span></a><span class="s_AA239A9B">.
15 to 30cm's of recent storm snow is bonding poorly to previous surfaces and remains reactive to skier triggering.
A weak and facetted basal layer exists at the bottom of the snowpack. Smaller storm snow avalanches may step down to this weak facetted layer.
15 to 30cm's of recent storm snow is bonding poorly to previous surfaces and remains reactive to skier triggering.
A weak and facetted basal layer exists at the bottom of the snowpack. Smaller storm snow avalanches may step down to this weak facetted layer.
Wind loading producing soft slabs on lee features at and above treeline.&nbsp;
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as surface slides or cornice collapse could trigger this deep persistent weakness.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread touchy surface hoar layer down 50 to 70cm is likely to be triggered anywhere it has not yet failed. As the slab overtop stiffens it becomes less likely to trigger but  propagation and consequences will increase. </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Moccasin%20Flats%202014-12-24.pdf" target="_blank"><span class="s_9255B882">click photo</span></a><span class="s_AA239
Storm slab avalanches may step down to deeper layers, including the the Nov 9 layer at the bottom of the snowpack. The resulting avalanche would be very large.
Northerly winds reverse loading cross-loaded gulley features. Previous wind slab from SW winds appear to be well bonded to snow below.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as surface slides or cornice collapse could trigger this deep persistent weakness.
15 to 30cm's of snow from last week is bonding poorly to previous surfaces and remains reactive to skier triggering, especially 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. Smaller storm snow avalanches may step down to this weak layer.
15 to 30cm's of snow from last week is bonding poorly to previous surfaces and remains reactive to skier triggering, especially in areas where there is some wind loading and slab development.
A weak and facetted basal layer exists at the bottom of the snowpack. Smaller storm snow avalanches may step down to this weak layer.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">A widespread touchy surface hoar layer down 50 to 80cm is likely to be triggered anywhere it has not yet failed. As the slab overtop stiffens it becomes less likely to trigger but propagation and consequences will increase.  </span><a id='GoToAdded' href="http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://data.avalanche.ca/Images/Moccasin%20Flats%202014-12-24.pdf" target="_blank"><span class="s_9255B882">click photo</span></a><span class="s_AA239
Storm slab avalanches may step down to deeper layers, including the the Nov 9 layer at the bottom of the snowpack. The resulting avalanche would be very large.
15 to 30cm's of snow from last week is bonding poorly to previous surfaces and remains reactive to skier triggering, especially 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. Smaller storm snow avalanches may step down to this weak layer.
Northerly winds reverse loading cross-loaded gulley features. Previous wind slab from SW winds appear to be well bonded to snow below.
This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as surface slides or cornice collapse could trigger this deep persistent weakness.
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. 
Storm slab avalanches may step down to deeper layers, including the the Nov 9 layer at the bottom of the snowpack. The resulting avalanche would be very large.
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.
Remember that previous West Winds had a strong effect on the current distribution of snowpack: fragile cornices and buried windslabs will complicate the picture and limit terrain choice as travelers look to avoid the persistent slabs
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.
Winds have been steady in the 40-50km/h range from the north overnight. There's lots of snow available to move around to form slabs on lee features which is on south and west aspects.
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.
Up to 20 cm of fresh snow by Saturday, and light to moderate west winds may create small wind slabs in lee alpine terrain.
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.
10-12 new today. Wind effect on Friday may have created small wind slabs in lee alpine terrain.
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.
Wind effect on Friday has created small wind slabs in lee alpine terrain.
Light to moderate variable winds are producing soft slabs 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 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.
Wind effect on Friday has created small wind slabs in lee alpine terrain.
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.
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, 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.
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.
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.
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.
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.
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.
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.
The snowpack gained strength this week as it cooled down. The facets and associated crust found near the base of the snowpack likely only remain a problem at elevations above at least 2400m.
Moderate to strong winds continue to redistribute snow creating wind slabs on lee aspects and cross loaded features.
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.
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.
Windslabs in leeward areas can be found up to 25 cm deep. Watch for convex rolls or other areas of wind loading where the snow can be under tension.
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.
Buried windslabs in leeward areas can be found up to 25 cm deep. Watch for convex rolls or other areas of wind loading where the snow can be under tension.
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.
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.
Buried windslabs in leeward areas can be found up to 25 cm deep. Watch for convex rolls or other areas of wind loading where the snow can be under tension.
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
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.
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
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.
Strong SW winds continue to scour open slopes and redistribute that snow into wind slabs on lee aspects and cross loaded features. This extra load combined with a skier could be sufficient to initiate an avalanche
We have 40cm of recent storm snow with very mild temperatures. Winds are strong in the alpine and its raining below 2000m.
Mid January surface hoar layer is now buried 60-100cm deep. This layer is likely to become more reactive with the current warm conditions and rain we are receiving. 
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.
Strong SW winds continue to scour open slopes and redistribute that snow into wind slabs on lee aspects and cross loaded features. This extra load combined with a skier are at a critical mass and will likely initiate an avalanche
Strong winds may keep snow surfaces cool at upper elevations, but lower elevations and thin rocky areas on solar aspects should be suspect and may trigger the weaker basal layers and subsequent larger avalanches.
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.
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.
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.
10 to 30cm thick over an interface of weak, faceted snow, these old slabs linger and may still be triggered by skiers looking for dry snow in the high shaded alpine terrain.
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.
Light to moderate west wind over the next three days will generate windslabs in lee areas in the alpine. Size and distribution of avalanches will depend on local intensity of wind and amount of precipitation.
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.
There is 30-40 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.&nbsp; Watch for blowing snow and beware when it happens.
Recent snow has left up to 20 cm of light powder on the snow surface, improving the conditions significantly. Light winds have done little to move this snow, but any increase in wind and we expect windslabs to form. Watch out for blowing snow.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Recent winds have created wind slabs in the lee of alpine features.
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.
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.
Recent winds have created wind slabs in the lee of alpine features.
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.
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.
Recent winds have created wind slabs in the lee of alpine features.
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.
15cm of overnight snow with moderate southerly winds have likely formed some soft slabs on and near ridge crests in the alpine.
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.
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.
Recent storm snow has likely formed some soft slabs on and near ridge crests in the alpine.
Solar radiation will be a factor to consider for the next few days. Manage your groups exposure to sun effected slopes and to the overhead cornice hazard. Watch for loose avalanches off of cliffs as indicators of instabilities.
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.
Large cornices throughout the Park will be taking in a good dose of solar radiation today for the first time. Manage your groups exposure to this overhead hazard even on shaded slopes as the cornices above are still in the sun.
Solar radiation will be a factor today and for the next few days on sun effected. Watch for loose avalanches off of cliffs and moist snow as indicators of snow instabilities.
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.
Given the amount of sun in the forecast and that cornices exist above some of the more sensitive snowpack areas out there right now, keep your mind tuned to your exposure. These big triggers may get the deep persistent slabs moving.
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.
5-15cm of snow over a firm surface can be released as loose avalanches with solar effect. Solar radiation today will be strong with clear skies.
Large cornices throughout the Park will be getting more solar radiation today. Manage your groups exposure to this overhead hazard even on shaded slopes as the cornices above are still in the sun.
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.
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.778767212173270.1073741874.145133538869977/791098590940132/?type=1&amp;theater" target="_blank"><span class="s_9255B882">Impressive avalanches </span></a><span class="s_AA239A9B">have been triggered recently by cornices falling on slopes, some failing to deep basal layers. Minimize exposure to slopes with cornices above even if you are in the shade, as the cornices above are still in the sun.
5-15cm of snow over a firm surface can be released as loose avalanches with solar effect. Solar radiation today will be strong with clear skies.
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.
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.778767212173270.1073741874.145133538869977/791098590940132/?type=1&amp;theater" target="_blank"><span class="s_9255B882">Impressive avalanches </span></a><span class="s_AA239A9B">have been triggered recently by cornices falling on slopes, some failing to deep basal layers. Minimize exposure to slopes with cornices and use caution while traveling along ridges.
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.
Be cautious near ridge-crests and in lee areas. These seem to be isolated to the Icefields Parkway region (found on Observation sub-peak Saturday). These will be a short term problem.
Recent winds from many directions (North on Saturday) 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.
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.
Be cautious near ridge-crests and in lee areas. These seem to be isolated to the Icefields Parkway region.
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 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.
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.
Isolated pockets of wind slab are still reactive to skiers if you find the right spot on a lee feature with underlying crust. The 5cm of snow expected tonight will make it harder to spot a loaded feature.
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.
Up to 5cm of snow will make it harder to spot a loaded area. Isolated pockets of wind slab are still reactive to skiers if you find the right spot on a lee feature with underlying crust.  Keep this in mind particularly on exposed features.
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.
Up to 15cm of recent snowfall and winds from the north have created reverse loading in the alpine.
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.
Recent new snow was just enough to make it harder to spot wind loaded pockets.&nbsp; Isolated pockets of wind slab are still reactive to skiers given the right location on steep lee features.&nbsp; Keep this in mind if committing to steep exposed terrain.
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.
Up to 15cm of recent snowfall and winds from the north have created reverse loading in the alpine.
Northerly winds early this week created isolated windslabs in unusual places. Small pockets of wind slab have been reactive on steep lee features. These are of most concern on steep, aggressive terrain where the consequences of a fall are severe.
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.
Up to 15cm of recent snowfall and winds from the north have created reverse loading in the alpine.
Northerly winds early this week created isolated wind-slabs in unusual places. Small pockets of wind-slab have been reactive on steep lee features. These are of most concern on steep, aggressive terrain where the consequences of a fall are severe.
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.
Strong winds are redistributing snow into slabs on sheltered aspects and cross loaded features in the alpine.
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.
SW winds continue to form wind slabs.  Expect wind effected snow on all aspects. Small pockets of wind slab have been reactive to skiers.  Extra caution should be used in steep terrain where a small slab could result in a big fall.
Strong winds are redistributing snow into slabs on sheltered aspects and cross loaded features in the alpine.
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.
Strong winds continue to form touchy slabs. Small pockets of wind slab have been reactive to skiers. On south aspects, wind slabs overlie a crust. Caution should be used in steep and exposed terrain where a small slab could result in a big fall.
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.
Strong winds are redistributing snow into slabs on sheltered aspects and cross loaded features in the alpine.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
Strong winds have formed touchy slabs. Small pockets have been reactive to skiers at or near ridge crests. Winds have come from all directions over the last week so lee slopes include all aspects.
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.
Strong winds are redistributing snow into slabs on sheltered aspects and cross loaded features in the alpine.
Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.
Strong winds have formed touchy slabs. Small pockets have been reactive to skiers at or near ridge crests. Winds have come from all directions over the last week so lee slopes include all aspects.
Strong winds are redistributing snow into slabs on sheltered aspects and cross loaded features in the alpine.
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.
Strong winds have built large cornices on ridgetops that could fail with the warm temperatures and sun exposure. Avoid travelling under exposed slopes during the heat of the day.
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 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.
Moderate SW winds continue to  redistribute the snow into slabs on sheltered aspects and cross loaded features in the alpine.
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.
Previous moderate SW winds have created slabs on sheltered aspects and cross loaded features in the alpine.
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. This layer has been dormant lately but may waken up with the warm temperatures. Avoid steep, open, rocky slopes with a shallow snowpack.
Recent winds have moved small amounts of dry snow into isolated pockets of windslab in higher alpine areas. Watch immediate leeward slopes, and slope test on smaller slopes adjacent. Several skiers have been caught in small ones this week.
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.
5 - 10 cm's of new snow has been blown by strong west winds into small windslabs in the alpine. In some areas this covers isolated areas of older windslab that has been reactive to human triggering over the past week.
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.
These layers from early season are still a concern on N aspects in the alpine, especially in shallow snowpack areas. Warm temperatures and rain penetrating the snowpack could wake up these deep instabilities.
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.
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.
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.
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.
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.
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.
Watch for wind slab development over the next 24 hours in the lees of alpine features. These will be sensitive to triggering in isolated features such as ridge crests and will continue to be through the weekend.
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.
New wind slabs will start to become more sensitive to human triggering Friday on lee features in the alpine.  This will continue through the weekend given the current forecast.
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.
These layers from early season are still a concern on N aspects in the alpine, especially in shallow snowpack areas. Warm temperatures penetrating the snowpack could wake up these deep instabilities.
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.
These layers from early season are still a concern on N aspects in the alpine, especially in shallow snowpack areas. Warm temperatures penetrating the snowpack could wake up these deep instabilities.
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.
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.
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.
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.
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.
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.
These layers from early season are still a concern on N aspects in the alpine, especially in shallow snowpack areas.
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.
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 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.
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.
Wind slabs up to 35cm can be found in the immediate lee features. Although there has been some improvement, 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 recent new snow load, especially in thin areas.
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.
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.
These layers from early season are still a concern on N aspects in the alpine. The warm temperatures and sunshine could wake up these layers, especially in shallow snowpack areas. Smaller surface avalanches could also step down to these deeper layers
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.
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.
There is generally 10-20 cm available for transport and moderate to strong SW wind continues to build windslabs. 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.
Wind slabs that have formed from recent snow are generally bonding well to the surfaces below. These will be sensitive in the short term in the immediate lees of ridge crests.
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.
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.
~30cm of recent snow in the Alpine over lying a number of crusts which were reactive to riders throughout the area. Tread cautiously in the upper elevations where recent precipitation fell as snow.
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. 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.
Although thin in many areas, there are some significant slabs that have grown along the ridge crests. New snow and continued West winds will continue to build these. Do not get caught by these while pushing to ski dry 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.
Moderate to strong SW winds have created wind slabs in the alpine that are reactive to skier triggering.
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.
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).
Some lingering wind slabs still exist in the alpine. Pay attention to lee slopes as you transition into the alpine.
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 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.
Moderate, but gusty, winds have been shifting from the SW to the NW forming pockets of wind slab in the alpine. Due to the variable wind direction they may exist in unusual places.
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.
Wind slabs have formed below ridge crests, often on old crusts.&nbsp; New soft cornice buildup continues.
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.
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.
Moderate winds have been shifting from the SW to the NW forming pockets of wind slab on lee alpine features. Due to the variable wind direction they may exist in unusual places.
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.
Recent wind slabs will become buried with the forecasted up-slope storm. Monitor how these are bonding to harder surfaces below.
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.
Recent wind slabs will become buried with Saturday/Sunday's up-slope storm.
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.
Snow accumulations varied greatly during the past two storms, more was received on the west end of the Park. Reactive slabs may linger in the alpine. Be aware as the snow transitions from crust to soft snow under your boards.
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.
Recent wind slabs are now buried with the forecasted up-slope storm. Monitor how these are bonding to harder surfaces below.
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.
Cornice falls were observed on steep unskiable terrain on Northerly aspects. Avoid this overhead hazard while travelling since the warmer temperatures may increase the number of cornice failures.
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.
We are expecting more solar radiation today and higher freezing levels. These conditions will weaken the large cornices that loom on ridgetops.
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.
Cornice failures 24hours or older were observed on steep unskiable terrain on Northerly aspects. Avoid this overhead hazard while traveling since the warmer temperatures may increase the number of cornice failures.
Warm afternoon temps and lots of solar will weaken the large cornices that exist in many areas. Recently, cornice failures have been the primary trigger of slab avalanches.
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.
Cornice failures 24hours or older were observed on steep unskiable terrain on Northerly aspects. Avoid this overhead hazard while traveling since the warmer temperatures may increase the number of cornice failures.
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.
Warm afternoon temps and lots of solar are causing cornice failures, which is the primary trigger of recent slab avalanches. Even if they don't trigger an avalanche, a car sized block of cornice hurtling downslope is worth avoiding.
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.
Weak layers in the top meter of the snowpack may become more reactive as the snowpack warms with daytime heat. Cornice falls are the most likely triggers of large deep avalanches failing 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.
Cornice failures have been noted on steep unskiable terrain. Avoid this overhead hazard while traveling as warm spring temperatures may increase this potential.
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.
Temperatures may be cooling but cornices are still the main problem in Rogers Pass. Recent cornice failures have triggered persistent instabilities buried deep in the snowpack. The resulting avalanches are large with serious destructive potential.
Small wind slabs will form over the next 24 hours in the lees of ridge crests. These will be reactive in the short term.
Many reports over the last week of cornice failures. These may have enough load to trigger an avalanche, or have enough mass to be a hazard on their own.
Cornice failures have been noted on steep unskiable terrain particularly on warm days. Avoid this overhead hazard while traveling as they are large and ominous.
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.
Soft slabs are forming on lee slopes and cross loaded features in the high alpine.
Wind slabs have formed in lee areas above treeline up to 40cm thick. These are reactive to skier traffic and have been failing naturally in some locations. Expect sluffing in any steep terrain as well.
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 in lee areas above treeline up to 40cm thick. These are reactive to skier traffic and have been failing naturally in some locations. Expect sluffing in any steep terrain as well.
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 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.
Strong wind from the NW has created wind slabs on lee aspects up to 50cm thick. These are reactive to skier traffic and have been failing naturally in some locations. Expect sluffing in any steep terrain as well.
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 in lee areas above treeline up to 50cm thick. These are reactive to skier traffic and have been failing naturally in some locations. Expect sluffing in any steep terrain as well.
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.
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.
Cornice are large and ominous. Give them a wide berth whenever possible. Current winds will continue to build their mass.
New snow Tuesday will add to slabs that can be found in the highest north facing terrain.
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.
Cornice are large and ominous. Give them a wide berth whenever possible.
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.
New snow and strong winds at ridgetop have caused the existing cornices to grow even larger. Today they will be weakened by strong solar. Large cornice failures have been observed recently, sometimes triggering very large deep slab avalanches.
Wind slabs have formed on lee slopes and cross loaded features at alpine and exposed tree line elevations.
Natural cornice failures are being observed daily. Many more are waiting their turn to drop in...
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.
Small wind slabs will be forming in immediate lees. Places like the Bow Summit/Wapta region may have thicker wind slabs as they received more snow than other areas of the forecast region.
Watch lee features near ridge crests as small wind slabs have been forming from warm temperatures, wind and recent snow.
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.
Small wind slabs will be forming in immediate lees. Places like the Bow Summit/Wapta region may have thicker wind slabs as they received more snow than other areas of the forecast region.
Small wind slabs will be forming in immediate lees. Places like the Bow Summit/Wapta region may have thicker wind slabs as they received more snow than other areas of the forecast region.
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.
The recent storm snow has been blown around by gusty winds, primarily from the SW. Cross loaded gully features in the alpine should be avoided during the next few days.
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.
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.
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.
Strong wind today and new snow has started to create new wind slabs in lee areas in the alpine. These wind-slabs are expected to be touchy.
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.
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.
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.
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.
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.
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 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.
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.
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.
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.
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.
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.
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.
New snow and light wind transport have created storm slabs. These may entrain loose snow in their track and grow in size.
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.
New isolated slabs are forming in alpine terrain
New isolated slabs are forming in alpine terrain
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.
New isolated slabs soft slabs are steadily growing in alpine terrain. These fresh slabs are easily triggered by skiers and will be found in the immediate lee sides of prominent features. Fragile recent cornice growth has also been failing naturally.
New isolated slabs soft slabs are steadily growing in alpine terrain. These fresh slabs are easily triggered by skiers and will be found in the immediate lee sides of prominent features. Fragile recent cornice growth has also been failing naturally.
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.
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.
Isolated slabs soft slabs are present in immediate lee areas in the alpine. Fragile cornices have also been reported.
Isolated slabs soft slabs are present in immediate lee areas in the alpine. Fragile cornices have also been reported.
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.
Isolated slabs soft slabs are present in immediate lee areas in the alpine.
These are now hidden under the low density new snow.
Isolated slabs soft slabs are present in immediate lee areas in the alpine.
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 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.
Recent winds have been shifting directions. Pockets of windslab may be lurking in unusual places. Be especially cautious in steep terrain where the consequences of a fall caused by a small pocket of windslab would be serious.
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.
Wind speed and direction have been variable. Pockets of soft slab may be found in unexpected locations. Edge into higher consequence steep terrain with caution.
Expect loose snow sluffing in steep to extreme terrain. Plan to regroup in safe locations and avoid exposure to terrain traps.
Some thin, isolated winds slabs are beginning to form in leeward areas near ridge crests as the winds increase. Keep an eye out for these spots when entering steep terrain.&nbsp;
Some thin, isolated winds slabs are beginning to form in leeward areas near ridge crests as the winds increase. Keep an eye out for these spots when entering steep terrain.
Winds picked up yesterday out of the south redistributing the low density storm snow onto alpine immediate lee features. Be cautious as you transition into wind effected terrain and assess before committing to it.
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.
Isolated windslabs can be found in alpine terrain as a result of recent West and Southwest winds.
Some thin, isolated winds slabs are beginning to form in leeward areas near ridge crests as the winds increase. Keep an eye out for these spots when entering steep terrain.
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.
Periods of moderate south through south-west winds have formed soft slabs along the immediate lee of alpine features.
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.
Isolated windslabs can be found in alpine terrain as a result of recent West and Southwest winds.
Isolated wind slabs can be found in alpine terrain as a result of recent West and Southwest winds.
Periods of moderate south through south-west winds have formed soft to very soft slabs along the immediate lee of alpine features.
Loose dry snow sluffs can be expected in very steep terrain. This could be an issue in steep gullies and terrain traps.
Isolated windslabs can be found in alpine terrain as a result of recent West and Southwest winds. These have not been too reactive but may be enough to push someone off their feet in steep, exposed terrain.
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.
Isolated wind slabs can be found in alpine terrain as a result of recent West and Southwest winds. Although they have not been very reactive, heads up in steep and exposed terrain, as a small cookie could be enough to knock you off your feet.
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.
Winds have been relatively light, but periods of moderate S through N winds have created pockets of very soft slab along the immediate lee of alpine features. Where they exist, these pockets have been triggered by skiers.
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.
Thin windslabs exist in immediate lee of some alpine features. Keep them in mind if you venture into more aggressive terrain where getting pushed around by a small slide could have serious consequences.
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.
Thin windslabs exist in immediate lee of some alpine features. Keep them in mind if you venture into more aggressive terrain where getting pushed around by a small slide could have serious consequences.
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.
Thin windslabs exist in immediate lee of some alpine features. Keep them in mind if you venture into more aggressive terrain where getting pushed around by a small slide could have serious consequences.
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.
Thin windslabs exist in the immediate lee of some alpine features. Keep them in mind if you venture into more aggressive terrain where getting pushed around by a small slide could have serious consequences.
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.
Isolated wind slabs exist in alpine areas. We have not had any recent reports but several natural and skier triggered avalanches (up to size 1.5) have occurred in the past week.
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.
Isolated wind slabs exist in alpine areas. We have not had any recent reports but several natural and skier triggered avalanches (up to size 1.5) have occurred in the past week.
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.
Isolated wind slabs exist in alpine areas. We have not had any recent reports but several natural and skier triggered avalanches (up to size 1.5) have occurred in the past week.
Isolated wind slabs exist in alpine areas. Today, forecasters triggered a small 0.5 windslab at the back of Chickadee Valley near Chimney peak. This is confirmation that small windslabs still linger in isolated areas.
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.
Watch for new wind slabs lee to ridgetops. These may appear as smooth, harder surfaces, amongst more textured surrounding snow.
Loose sluffs can be expected in steep rocky terrain.  This will be more pronounced given strong solar input.
Isolated wind slabs exist in alpine areas. Yesterday, forecasters triggered a small 0.5 windslab at the back of Chickadee Valley near Chimney peak. These should be easy to spot, so heads up in steep wind effected terrain.
We have not had any recent reports but several natural and skier triggered avalanches (up to size 1.5) have occurred in the past week. These slabs should be visible on the surface, so heads up in steep wind effected areas!
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.
There are still occasional (one or two per day) reports of small windslabs in some areas. Not big enough to bury someone, but certainty a problem if it pushed you into a terrain trap (gully or over a cliff).
There are still occasional (one or two per day) reports of small windslabs in some areas. Not big enough to bury someone, but certainty a problem if it pushed you into a terrain trap (gully or over a cliff).
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.
There are still occasional reports of small windslabs throughout the area. Not big enough to bury someone, but certainty a problem if it pushed you into a terrain trap (gully or over a cliff).
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.
There are still occasional reports of small windslabs throughout the area. Not big enough to bury someone, but certainty a problem if it pushed you into a terrain trap (gully or over a cliff).
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.
Some small wind slab development occurred on Thursday with the NE winds as the arctic air arrived. These are small and seem confined to immediate alpine lee areas, but could be a problem if they push you into a terrain trap (gully or over a cliff).
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.
Some small wind slab development occurred on Thursday with the NE winds as the arctic air arrived. These are small and seem confined to immediate alpine lee areas, but could be a problem if they push you into a terrain trap (gully or over a cliff).
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.
Some small wind slab development occurred on Thursday with the NE winds as the arctic air arrived. These are small and seem confined to immediate alpine lee areas, but could be a problem if they push you into a terrain trap (gully or over a cliff).
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.
Isolated wind slabs were created Thursday as NE winds carrying some snow pushed in from the prairies. More of a problem in eastern areas. These are mainly small and local to ridge crests however they may entrain faceted snow and run far.
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.
Isolated wind slabs were created Thursday as NE winds carrying some snow pushed in from the prairies. More of a problem in eastern areas. These are mainly small and local to ridge crests however they may entrain faceted snow and run far.
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 and mod-strong west wind is creating fresh winslabs in the alpine. These slabs are generally bonding poorly to the underlying suncrust or facets.
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.
New snow overnight with mod-strong west wind has produced soft winslabs in the alpine. Typically they dissipate once significantly below ridge crest.
Isolated wind slabs in exposed areas above tree line.
Some small wind slab development occurred on Thursday with the NE winds as the arctic air arrived. These are small and seem confined to immediate alpine lee areas, but could be a problem if they push you into a terrain trap (gully or over a cliff).
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 overnight with mod-strong west wind has produced soft windslabs in the alpine. Typically they dissipate once significantly below ridge crests.
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.
New snow with mod-strong west winds have produced small, soft windslabs in the alpine. Typically they dissipate once significantly below ridge crests.
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.
The extent of wind slab formation in this area hasn't been well established.  Watch for newly formed, small wind slabs in immediate lees of high alpine ridges due to previously strong winds earlier this week.
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.
New snow with mod-strong west winds have produced small, soft windslabs in the alpine. They are settling out with the mild temperatures and light winds, but have been most reactive on S/SW aspects where they overly a buried suncrust.
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
West winds are forming&nbsp; small, thin slabs next to high alpine ridge crests. Although small in size, triggering one of these slabs may result in a significant avalanche if it pushes a sluff in a steep slope beneath it.
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
West winds are forming small, thin slabs next to high alpine ridge crests. Although small in size, triggering one of these slabs may result in a significant avalanche if it pushes a sluff in a steep slope beneath it.
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.
Isolated wind slabs near ridge crests have been formed by West winds. These are small in nature but may be sitting over facets or sun crust which can run further than expected.
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.
Isolated wind slabs near ridge crests have been formed by West winds. These are small in nature but may be sitting over facets (less likely in this area) or sun crust which can run further than expected.
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.
Isolated wind slabs near ridge crests have been formed by west winds. These are small in nature but may be sitting over facets or sun crust which can run further than expected.
Isolated wind slabs near ridge crests have been formed by west winds. These are small in nature but may be sitting over facets or sun crust which can run further than expected.
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.
The new snow over the last week has been slowly adding up, compounded by moderate west winds to created localized windslabs. Pay close attention to the distribution of the snow in the alpine.
The new snow over the last week has been slowly adding up, compounded by moderate west winds to created localized windslabs. Pay close attention to the distribution of the snow in alpine areas, such as the Wapta Icefields.
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.
The new snow over the last week has been adding up in increments, compounded by moderate west winds to create localized windslabs. Today, forecasters were able to ski cut numerous soft slabs in the immediate lee. They were small, slow and sluggish.
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.
The new snow over the last week has been adding up in increments, compounded by moderate west wind to create localized windslabs.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Soft slabs 30 to 50cm deep exist in alpine lee areas. 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.
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.
Slabs 30 to 50cm deep exist in alpine lee areas. 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.
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.
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.
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
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.
Slabs 30 to 50cm deep exist in alpine lee areas. Although these slabs are slowly becoming more difficult to trigger, human triggering is still possible.
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.
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.
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.
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.
The new snow and wind will cause loose dry avalanches to occur in alpine areas. These loose dry sluffs have potential to trigger larger avalanches below. Ice climbers in particular should avoid areas exposed to sluffing over the next couple of days.
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.
The new snow and wind will cause loose dry avalanches to occur in alpine areas. These loose dry sluffs have potential to trigger larger avalanches below. Ice climbers in particular should avoid areas exposed to sluffing over the next couple of days.
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.
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.
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.
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.
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
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.
The big warmup will weaken cornices and they can be expected to fall off spontaneously. Avoid overhead exposure to any cornices, but if you must then consider the runout distance and minimize your exposure time.
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.
The big warmup will weaken cornices and they can be expected to fall off spontaneously. Avoid overhead exposure to any cornices, but if you must then consider the runout distance and minimize your exposure time.
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
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.
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.
Windslabs still exist in the alpine on lee features to widespread wind affect from the weekend.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Be mindful of cross loaded features and the lees of ridges where windslabs 10-30 cm thick continue to be reactive.&nbsp; If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
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.
Be mindful of cross loaded features and the lees of ridges where windslabs 10-30 cm thick continue to be reactive. If triggered, there is potential to step down to the persistent weak layer and to ground in thin 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.
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.
Be mindful of cross loaded features and the lees of ridges where windslabs 10-30 cm thick continue to be reactive. If triggered, there is potential to step down to the persistent weak layer and to ground in thin areas.
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.
Be mindful of cross loaded features and the lees of ridges where windslabs 10-30 cm thick continue to be reactive. If triggered, there is potential to step down to the persistent weak layer.
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.
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.
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.
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.
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.
ont-weight: normal;font-size: 13px;color: #0000FF;text-decoration: underline; } 
</style><p class="p_CC664AAA"><span class="s_AA239A9B">The storm slab is settling, but a couple layers within the new snow show the </span><a href="https://www.facebook.com/ParksMountainSafety/videos/vb.145133538869977/942661439117179/?type=2&amp;theater" target="_blank"><span class="s_9255B882">potential for step-down</span></a><span class="s_AA239A9B"> to lower layers if a slab is triggered.
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;
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.
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,
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 30-60 cm thick have recently formed along with new cornice growth. If triggered, there is potential for these to step down to the persistent weak layer.
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,
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 30-60 cm thick have recently formed along with new cornice growth. If triggered, there is potential for these to step down to the persistent weak layer.
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
Be mindful of cross loaded features and the lees of ridges where fresh windslabs 30-60 cm thick have recently formed along with new cornice growth. If triggered, there is potential for these to step down to the persistent weak layer.
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.
Isolated wind slabs exist in lee alpine terrain.
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
Cornices are being stressed by the warm temp's and grew quite large during the last storm. If they drop, they could trigger deeper weak layers and cause large avalanches.
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">.
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.
There is potential for small windslabs on lee aspects above treeline. Watch for these at the local level.
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.
The possibility of small windslabs exists in alpine lee areas. Watch for these at the local level.
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
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.
The possibility of small windslabs exists in alpine lee areas. Watch for these at the local level.
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.
There is potential for small windslabs on lee aspects above treeline. Watch for these at the local level.
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
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.
New snow and strong winds have contributed to cornice development. Warm temperatures and periods of sun may be enough to cause cornices to fail today. Cornice failures have potential to trigger persistent slabs on slopes below, with big consequences.
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.
New snow and strong winds have contributed to cornice development. Warm temperatures and periods of sun may be enough to cause cornices to fail today. Cornice failures have potential to trigger persistent slabs on slopes below, with big consequences.
<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.
Large cornices have been formed by strong winds and storm snow.  Warm temperatures and continued loading may be enough to cause cornice failure.  Cornice fall has the potential to trigger persistent slabs on slopes below with large consequences.
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.
Large cornice failure was observed Mar 4 on Mt. Ogden. Recent swing in temperature is making large cornices highly suspect.
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.
Recent wind and storm snow has contributed to rapid cornice formation. Cornice fall has the potential to trigger the persistent weak layer resulting in larger avalanches.
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.
Isolated storm slabs exist,&nbsp; increasing in size with elevation. These may be stubborn or unreactive to human triggering, but consider the consequences of your terrain choices if peak bagging.
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.
Recent W winds and new snow have created wind 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.
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.
Recent wind and storm snow has contributed to rapid cornice formation. Cornice fall can be difficult to predict but is usually related to sudden heating or new loading.&nbsp; Cornice weight could trigger the deep layers resulting in larger avalanches.
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.
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.
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.
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</style><p class="p_CC664AAA"><span class="s_AA239A9B">Previous southerly winds created windslab on lee slopes and crossloaded features. While these slabs are gaining strength they still remain a concern for human triggering. </span><span class="s_2823317B">Cornices are large right now</span><span class="s_AA239A9B"> and could easily fail from sun or riders weight
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.
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.
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
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.
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.