Avalanche Forecast
Issued: Dec 6th, 2023 4:00PM
The alpine rating is Storm Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeStorm slabs in the alpine may be reactive to rider triggering. Stable avalanche conditions exist wherever a thick surface crust is present.
Summary
Confidence
Moderate
Avalanche Summary
On Tuesday, numerous natural wet slab and wet loose avalanche activity was seen in treeline and below treeline terrain. Storm slabs may exist and be reactive to rider-triggering in upper elevations where a surface crust does not exist.
If you're heading out in the backcountry, please consider sharing any observations on the Mountain Information Network
Snowpack Summary
At treeline and above 10 to 20 cm of new snow sits above a widespread crust and may show a poor bond. The new snow tapers with elevation loss but the surface crust continues to exist below treeline. This crust should provide a bridge over any previous layers of concern deeper in the snowpack.
Weather Summary
Wednesday Night
Mostly cloudy. Light wind from the northeast and alpine temperatures near -5. Freezing level dropping to 800 m.
Thursday
Cloudy. Alpine winds 10 to 20 km/h from the northwest. Treeline temperature near -2°C, and freezing level 1000 m.
Friday
Mostly cloudy with possible sunny breaks. Alpine winds from the southeast 15 to 20 km/h and temperatures -4 to -8°C. Freezing levels near 800 m.
Saturday
Next frontal system to arrive, bringing strong south winds, new snow amounts 15 to 25 cm. Freezing levels near 1000 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Avoid areas where the snow feels stiff and/or slabby.
- When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
- Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.
Problems
Storm Slabs
In any alpine areas where a surface crust is not present, reactive storm and wind slabs may exist.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Dec 7th, 2023 4:00PM