Wind Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–1.5
Watch for reactive wind slabs forming on northern aspects.
New snow and southerly winds will likely build wind slabs on northern aspects in the alpine.
Be cautious on Leeward features where fresh wind slabs are forming.
Watch for reactive wind slabs forming on northern aspects.
As temperatures rise, large cornice falls will become a concern. They can potentially trigger slabs on the slopes below.
No avalanche activity has been reported in recent days. If you do observe an avalanche, please share your observations on the Mountain Information Network.
Wind has redistributed recent snow, forming pressed surfaces and wind slabs in open terrain while leaving 15-25 cm of settled snow in sheltered areas. Wind slabs may be more predominant on the east side of White Pass where the wind hit harder. A melt-freeze crust covers most solar slopes.
A buried surface hoar or crust layer, 40 to 60 cm deep, is variable in distribution. A December crust with facets, 100 to 150 cm deep on all aspects up to 1750 m, has shown no significant test results.
Snow depth ranges from 100 cm at highway elevations to over 300 cm in the alpine.
Saturday Night
Cloudy with 0 to 5 cm of snow. 20 to 50 km/h southeast ridgetop wind. Treeline temperature -1 °C. Freezing level 1000 m.
Sunday
Cloudy with 0 to 5 cm of snow. 40 to 60 km/h south ridgetop wind. Treeline temperature -2 °C. Freezing level 1000 m.
Monday
Cloudy with 5 to 10 cm of new snow. 40 to 60 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level 800 m.
Tuesday
Cloudy with up to 5 cm of new snow. 40 to 60 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level 1000 m.
More details can be found in the Mountain Weather Forecast.