Avalanche Forecast
Issued: Feb 21st, 2025 4:00PM
The alpine rating is Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includePractice good travel habits, and continue to avoid large, steep, open slopes with shallow snowpacks.
The snowpack is relatively stable in this period of slow change.
Summary
Confidence
High
Avalanche Summary
No avalanches have been reported since early February.
If you are traveling in the mountains consider posting to the MIN.
Snowpack Summary
The recent snowfall is burying wind-affected surfaces in exposed terrain on all aspects and elevations. Moderate to strong south and southwest winds will likely be forming deeper deposits in leeward terrain. Ongoing cold temperatures have softened the upper snowpack in sheltered terrain.
A weak layer of facets and a crust from early December is buried 60 to 100 cm deep. This layer exists on all aspects up to 1750 m.
At the highway elevation, the snow depth is 120 cm, and in the alpine exceeds 200 cm.
Weather Summary
Friday Night
Cloudy with up to 1 cm of snow. 10 to 20 km/h south ridgetop wind. Treeline temperature - 3 °C.
Saturday
Mainly cloudy with up to 1 cm of snow. 15 to 25 km/h southeast ridgetop wind. Treeline temperature -6 °C.
Sunday
Mainly cloudy with 2-10 cm of snow. 30 to 45 km/h southwest ridgetop wind. Treeline temperature -3 °C.
Monday
Manly cloudy with up to 5 cm of snow. 25 to 35 km/h southwest ridgetop wind. Treeline temperature -3 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
- Avoid shallow snowpack areas, rocky outcrops, and steep terrain where triggering is most likely.
- Be aware of the potential for large avalanches due to buried weak layers.
Problems
Persistent Slabs
Large, steep, open slopes with shallow snowpacks are the most likely place to trigger a large avalanche on this layer. To avoid this problem, choose terrain sheltered from the wind that tends to catch and hold more snow.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Feb 22nd, 2025 4:00PM