Avalanche Forecast
Issued: Dec 11th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
trettie,
Avalanche Canada
watch for wind slabs in all exposed terrain. Winds will likely shift to the southwest by tonight. Ongoing light snowfall could mean continuous new wind slab development.
Summary
Confidence
Moderate
Avalanche Summary
Our field team observed shooting cracks in newly formed wind slabs on Friday, as reported in their MIN.
If you head out in the backcountry please support your community by submitting a MIN report!
Snowpack Summary
As the wind shifts to the southwest we will likely see wind slab on all aspects in exposed terrain at treeline and above.
A faceting crust is found down 20-50 cm on solar aspects but has not been reactive in tests. The lower snowpack consists of soft, sugary facets and a crust near ground level.
Up to 100 cm of snow can be found in the alpine however winds have made distribution variable. Treeline snow depth averages 80 cm. Early-season hazards exist at treeline and below such as rocks, stumps, and open creeks.
Weather Summary
Sunday Night
Flurries bringing a few centimeters of new snow. Ridge winds increasing to 40 km/h from the southwest. Temperatures rising to -11 at 1500m.
Monday
Cloudy with 5 cm of new snow expected. Moderate to strong southwest wind. Temperatures rising to -5 at 1500m.
Tuesday
Mostly cloudy with up to 5cm of new snow expected. strong southwest wind. Temperatures around -7 at 1500m.
Wednesday
Light flurries continue with a few more centimeters of snow expected. Moderate southwest winds and a high of -6 at 1500m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Recent wind has varied in direction so watch for wind slabs on all aspects.
- Approach lee and cross-loaded slopes with caution.
- Seek out sheltered terrain where new snow hasn't been wind-affected.
Problems
Wind Slabs
wind slabs will likely be found on all aspects in exposed terrain as a result of changing wind direction. Ongoing flurries over the next few days will likely mean continuous wind slab development.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 12th, 2022 4:00PM
