Avalanche Forecast
Issued: Nov 30th, 2021 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs and Loose Dry.
Chris Gooliaff,
Avoid all avalanche terrain Wednesday.
This is not the time to be in the backcountry.
Summary
Weather Forecast
A warm, wet one is getting planted on Rogers Pass' face!
Tonight: Snow, 20cm, FZL 1500m, mod / gusting strong SW winds
Wed: Snow, 25-30cm, FZL 2100m, strong / gusting extreme SW winds
Thurs: Scattered flurries, 5cm, FZL 1600m, light / gusting strong W winds
Fri: Cloudy with sunny periods, Alpine high -10*C, light W winds
Snowpack Summary
Heavy storm slabs, 1+m thick and growing, are widespread at all elevations. The mid to lower snowpack is generally rounded and well bonded. Tree-line and below tree-line travel is difficult, with extremely dense new snow from warm temps (think skiing in elephant snot, gross!). Early season hazards still linger below 1700m.
Avalanche Summary
After a slow day for avalanches Monday, the mountains are shedding once again. Numerous natural avalanches to sz 3 have been detected in the highway corridor Tuesday, and many more are certain to come tonight/Wednesday with the building storm intensity, rising temps, and winds.
Confidence
Problems
Storm Slabs
Rapid snow loading, rising temps, and strong SW winds will add more load to the existing 1+m thick storm slabs.
- Avoid exposure to overhead avalanche terrain, large avalanches may reach the end of run out zones.
- Avoid avalanche terrain during periods of heavy loading from new snow, wind, or rain.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Loose Dry
As the new snow piles up, expect touchy loose dry avalanches in steeper terrain. These can be especially problematic in / above terrain traps
- Be careful of loose dry sluffing in steep, confined or exposed terrain.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 1st, 2021 4:00PM
