Avalanche Forecast
Issued: Dec 6th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs and Deep Persistent Slabs.
Avalanche Canada,
Avalanche Canada
New snow may not bond well to the old. Test before committing to larger terrain.
Concern remains for a weak layer near the base of the snowpack in shallow areas with facets over a crust.
Summary
Confidence
Low
Avalanche Summary
No new slab avalanches have been reported. Small wet loose avalanches were triggered by riders on Thursday.
Snowpack Summary
Treeline snow depths are generally 50 to 70 cm, with deeper wind-loaded pockets in the alpine.
New snow is expected to land on a variety of different layers including sun crusts, surface hoar in sheltered areas, and wind-affected snow.
In the Invermere area, weak faceted snow at the base of the snowpack has caused several small but notable deep persistent slab avalanches.
Early-season hazards are present at all elevations. Stay alert and assess terrain carefully.
Weather Summary
Friday Night
Cloudy. 30 to 40 km/h west ridgetop wind. Treeline temperature -7 °C.
Saturday
Cloudy with 5 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -3 °C.
Sunday
A mix of sun and cloud. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -7 °C.
Monday
Sunny. 10 km/h west ridgetop wind. Treeline temperature -7 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
- Be mindful that deep instabilities are still present in the snowpack.
- Watch for fresh storm slabs building throughout the day.
Problems
Storm Slabs
Snowfall amounts are uncertain and may change dramatically over a short distance. If you find more than 10 cm of new snow, watch out for storm slabs.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
Avalanches on weak faceted snow at the base of the snowpack are becoming less likely, but remain possible on steep, smooth slopes. This problem seems to be local to Invermere, but information is limited.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 7th, 2024 4:00PM
