Storm snow, rain and warming continue to build a slab over a weak layer. This will drive the avalanche danger to HIGH.
Check out our latest video conditions update here.
New snow, rising freezing levels and rain will add load to the upper snowpack which sits on a buried weak layer comprising of surface hoar, facets and a crust. Storm slabs are widespread and will be reactive at upper elevations.
Rising freezing levels and rain will drive a widespread wet loose avalanche problem.
No new avalanches have been reported in the past week however, observations have been limited.
Rising freezing levels, snow and rain are adding load to the upper snowpack.
Please share observations like avalanches, weather, and riding conditions to the Mountain Information Network.
Up to 25 cm of snow and or rain is expected Tuesday night, adding a new load above the late January surface hoar/ crust interface. This weak layer is found anywhere from 30 to 50 cm beneath the surface. The buried surface hoar is largest on sheltered treeline and below-treeline features.
Strong southwest winds may form deeper deposits on northeast slopes in the alpine.
By Wednesday afternoon, the snow surface is expected to become wet and heavy at most elevations.
Check out this MIN from the Pine Pass for more details on the buried interface.
Tuesday Night
Cloudy. 15 to 25 mm of precipitation as snow or rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1700 m.
Wednesday
Mostly cloudy. 2 mm of rain at treeline. 80 km/h southwest ridgetop wind. Treeline temperature 3 °C. Freezing level 2300 m.
Thursday
Mostly cloudy. 1 mm of rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2000 m.
Friday
Mix of sun and clouds. 2 mm of rain at treeline. 60 km/h southwest ridgetop wind. Treeline temperature 3 °C. Freezing level 2200 m.
More details can be found in the Mountain Weather Forecast.
