Avalanche Forecast
Issued: Feb 15th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
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Avalanche Canada
Beware of wind slabs in steep alpine terrain.
Summary
Confidence
High
Avalanche Summary
Reports from Wednesday suggest small (size 1) wind slabs were reactive on a variety of aspects in the alpine and upper treeline elevations. The slabs were 10 to 20 cm thick, with some failing on a buried surface hoar layer.
Snowpack Summary
Wind and sun have created variable surface conditions, with northeast wind heavily impacting open terrain.
15 to 30 cm of snow sits above a widespread crust. Many areas have reported a weak surface hoar layer above this crust, which could be problematic in areas where wind has formed a slab above the layer.
Snowpack depths decrease rapidly below treeline.
Weather Summary
Thursday Night
Clear skies. 30 km/h east ridgetop wind. Treeline temperature -12 °C.
Friday
Sunny. 30 km/h southeast ridgetop wind. Treeline temperature -5 °C.
Saturday
Mix of sun and cloud. 20 km/h south ridgetop wind. Treeline temperature -5 °C.
Sunday
Cloudy with 2 to 4 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -5 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
Problems
Wind Slabs
Shifting wind has formed small but reactive wind slabs in the alpine.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Feb 16th, 2024 4:00PM
