Avalanche Forecast
Issued: Nov 27th, 2022 4:00PM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeShifting winds may have formed wind slabs on a variety of aspects at upper elevations.
Avoid steep, rocky, and wind affected areas where triggering slabs are more likely.
Summary
Confidence
Low
Avalanche Summary
No avalanche activity has been reported. Please consider sharing any observations you may have via the Mountain Information Network to help us and fellow recreationists.
Snowpack Summary
A thin snowpack exists in most areas, with 50-75 cm found at White Pass. Upwards of 100 cm may be found in wind-loaded areas.
Wind slabs are most likely on north and east-facing slopes. However, the wind direction has shifted to northeasterly on Sunday and may form fresh wind slabs on south and west aspects.
The thin early-season coverage means many other hazards exist, such as exposed and thinly buried rocks, buried logs, open creeks, and weak lake ice.
Weather Summary
Sunday Night
Mostly cloudy with isolated flurries; 0-3 cm / Light northeast ridgetop winds / Low temperature at treeline -19 C
Monday
Mix of sun and cloud with isolated flurries; 0-3 cm / Light northeast ridgetop winds / High temperature at treeline -17 C
TuesdayMix of sun and cloud / Strong northeast ridgetop winds / High temperature at treeline -22 C
WednesdaySunny / Strong north ridgetop winds / High temperature at treeline -22 C
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Recent wind has varied in direction so watch for wind slabs on all aspects.
- Watch for signs of instability like whumpfing, hollow sounds, shooting cracks or recent avalanches.
- Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
Problems
Wind Slabs
Wind slabs are most likely on north and east-facing slopes. However, the wind direction has shifted to northeasterly on Sunday and may form fresh wind slabs on south and west aspects.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Nov 28th, 2022 4:00PM