Avalanche Forecast
Issued: Feb 17th, 2025 4:00PM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeContinue to assess steep lines for wind slab
Light snowfall and south wind has formed small wind slabs near ridge crests
Summary
Confidence
Moderate
Avalanche Summary
On Sunday explosives triggered several small storm and wind slab avalanches.
Several dry loose avalanches in steep terrain were also reported.
Snowpack Summary
Up to 10 cm of new snow has fallen with strong southeast wind, forming new wind slab on northerly aspects. In sheltered terrain this new snow may overlie soft, faceted snow or surface hoar. In exposed terrain it will overlie a sun crust or wind-affected snow.
A weak layer that was buried at the end of January is down 30 to 80 cm in the snowpack. Depending on where you are, it'll be a combo of different crystals. With crusts on sunny slopes, sugary facets in most places, and surface hoar in sheltered spots.
The mid and lower snowpack is strong and bonded.
Weather Summary
Monday Night
Mostly cloudy with trace amounts of snow possible. 10 to 20 km/h westerly ridgetop wind. Treeline temperature -5 °C.
Tuesday
Mostly cloudy with trace amounts of snow possible. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -3 °C.
Wednesday
Cloudy with up to 5 mm of mixed precipitation. 25 to 50 km/h south ridgetop wind. Freezing level rising to 1700 m.
Thursday
Mostly cloudy with 1 to 3 mm of mixed precipitation. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -3 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Carefully evaluate steep lines for wind slabs.
- Closely monitor how the new snow is bonding to the old surface.
Problems
Wind Slabs
Newly formed wind slabs could be found in exposed terrain. These slabs may be sensitive to rider traffic due to the weak layers underneath.
Aspects: North, North East, East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 18th, 2025 4:00PM