Avalanche Forecast
Issued: Mar 10th, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Avalanche Canada,
Avalanche Canada
Back off if you encounter signs of instability like whumpfing, shooting cracks or stiff wind-effected snow. Human-triggered avalanches remain possible.
Summary
Confidence
Moderate
Avalanche Summary
On Sunday, snowmobilers remotely triggered a size 2 avalanche in the southern area of the White Pass polygon.
There have also been reports of wind slab avalanches up to size 1.5 releasing naturally on northerly aspects in White Pass.
Snowpack Summary
20-40 cm of new snow has accumulated on various surfaces, including a melt-freeze crust on solar slopes, hard wind-affected surfaces, or faceted snow and surface hoar on shady slopes.
At treeline, there are at least two temperature crusts within the recent storm snow down approximately 45 cm.
A weak layer of facets and a crust from early December is buried 60 to 150 cm deep on all aspects up to 1750 m. This layer has not produced recent avalanche activity or test results and is not currently a concern.
Snow depth varies from 100 cm at highway elevations to over 200 cm in the alpine.
Weather Summary
Monday Night
Mostly cloudy with 0 to 2 cm of snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperature -8 °C.
Tuesday
Mostly cloudy with 0 to 2 cm of snow. 20 to 30 km/h south ridgetop wind. Treeline temperature -9 °C.
Wednesday
Partly cloudy with isolated flurries. 10 to 15 km/h south ridgetop wind. Treeline temperature -7 °C.
Thursday
Partly Cloudy with isolated flurries. calm winds. Treeline temperature -8 °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.
- Avoid freshly wind-loaded terrain features.
Problems
Wind Slabs
Small amounts of new snow each day and southerly winds are keeping windslab reactive.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 11th, 2025 4:00PM
