Avalanche Forecast
Issued: Nov 30th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
swerner,
Avalanche Canada
The storm continues! Avoid avalanche terrain, natural slab avalanches are expected on all aspects at all elevations.
Summary
Confidence
High
Avalanche Summary
On Thursday a widespread natural avalanche cycle is expected.
Leading up to Thursday human triggered avalanches using explosives were reported up to size 2.
Snowpack Summary
Upper Snowpack: Heavy snowfall amounts are forecast through Thursday afternoon building widespread fresh and reactive storm slabs. This brings over 60 cm+ of snow over a layer of surface hoar.
Lower Snowpack: Sugary faceted snow with a rain crust just above the ground.
Snowpack depths at treeline are 45 to 75 cm, and in the alpine 65 to 125 cm.
Matt and Connie's video paints a better picture of the snowpack than I can with words. Check it out! And here's their MIN report with a graphed profile.
Weather Summary
Wednesday NightPossible enhanced snowfall amounts 20-35 cm new snow, strong southwest wind, temperatures near -15. Freezing level valley bottom.
Thursday5-15 cm through the day, strong southwest wind and temperatures near -12.
FridayA mix of sun and clouds, moderate southwest wind and colder temperatures persist -15 to -20.
SaturdayCloudy with light snow amounts, moderate southwest wind and temperatures warming slightly to -8.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Avoid all avalanche terrain during periods of heavy snowfall.
- Be aware of the potential for larger than expected storm slabs due to the presence of buried surface hoar.
Problems
Storm Slabs
Heavy snowfall is forecast and amounts could accumulate to 45 cm plus by Thursday afternoon. Natural storm slab avalanches are likely. Storm slabs may scrub down to a deeper and faceted snowpack, initiating larger-than-expected avalanches.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 1st, 2022 4:00PM
