Avalanche Forecast
Issued: Dec 13th, 2021 3:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
JMackenzie,
Avalanche Canada
Another 5 to 10cm on the way Tuesday, which will do little to change the hazard levels. Steep and unsupported terrain at Treeline and above are a concern for human-triggering.
Summary
Confidence
High -
Weather Forecast
Tuesday will see light flurries under mostly cloudy skies. Accumulations of between 5 and 10cm are expected. Winds will be generally light from the SW with temperatures reaching -7C. Wednesday looks to be similar with slightly cooler temps and maybe a bit more sun.
Avalanche Summary
A few smaller loose dry avalanches in very steep lee and cross-loaded terrain were observed today. The slab activity up to size 2.5 in steep Alpine terrain that was observed yesterday has tapered. No new slabs observed today.
Snowpack Summary
Between 40 and 60cm of recent storm snow remains mainly low density with little wind effect below 2400m. Above this lee and cross-loading is evident. At upper elevations a soft wind slab is producing isolated cracking along ridge crests, and it is expected that wind slabs are more sensitive higher in the Alpine especially on steep and unsupported terrain.
Terrain and Travel
- Avoid steep, unsupported slopes.
- Approach lee and cross-loaded slopes with caution.
- Recent wind has varied in direction so watch for wind slabs on all aspects.
Problems
Wind Slabs
Wind slabs are present in open areas at Treeline and in the Alpine. In most places these slabs seem "sluggish" to initiate with ski cutting, but there is still concern for triggering in steep and/or unsupported terrain. the Alpine looks freshly loaded in lee and cross-loaded terrain.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 14th, 2021 3:00PM
