Heightened conditions exist on slopes with deeper accumulations of new snow, especially at higher elevations.
Tuesday's storm brought 15 to 30 cm of new snow.
Storm slabs may be triggered in parts of the region that received heavier accumulations, and on steep wind-loaded slopes.
Tuesday’s storm follows a period of low danger and limited avalanche activity.
Looking ahead, concerns shift to the new snow: initially storm slabs in steep terrain, then lingering wind slabs, and eventually wet loose avalanches with sun and warming.
If you get out into the backcountry, post a MIN!
Snowfall amounts will vary with location and elevation, so verify in the field and use more conservative terrain where snowfall is deeper. About 30 cm is expected around the Coquihalla and Chilliwack Valley and closer to 15 cm in Manning.
This snow falls on a mix of crusts and moist or isothermal snow, depending on aspect and elevation.
The snowpack has undergone multiple melt-freeze cycles, forming a series of crusts with dense, rounded snow between.
Snowpack depth decreases significantly below 1000 m.
Tuesday Night
Mostly cloudy. 5 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -8 °C.
Wednesday
Mostly cloudy. 0 to 1 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -6 °C.
Thursday
Mostly cloudy. 1 to 3 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -4 °C. Freezing level 1300 m.
Friday
Mix of sun and clouds. 1 to 3 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1700 m.
More details can be found in the Mountain Weather Forecast.
