Avalanche Forecast
Issued: Dec 2nd, 2021 3:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Deep Persistent Slabs.
Mikey,
Avalanche Canada
The Canmore Hill will be closed until Friday December 4 due to avalanche hazard and for control work.
Summary
Confidence
Weather Forecast
Friday is expected to be mostly cloudy with a daytime high of -15c. Winds will be 50km/hr from the SW.
Avalanche Summary
No new avalanches have been observed.
Snowpack Summary
We have no fields observations but our remote weather stations indicated that this last storm dropped up to 45mm of rain along the Spray and freezing levels were around 2250m. This means that the alpine has probably received upwards of 50cm of snow. This storm came in with a lot of wind, so expect extensive wind slabs and loaded lee features in the alpine.
The temperature has already started to cool, so there is a rain crust about 5cm down and will disappear at about the 2250m elevation. There are now several crusts in the snowpack below 2250m. This cooling trend will tighten up the snowpack reducing natural avalanche activity but increase the possibility of triggering. Approach all avalanche terrain with caution.
Terrain and Travel
- Avoid lee and cross loaded slopes in the alpine.
- Avoid slopes that sound hollow or drum-like.
Problems
Wind Slabs
Extensive wind slabs in the alpine.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
Triggering of the wind slab is likely to trigger the deep persistent slab.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 3rd, 2021 3:00PM
