Avalanche Forecast
Issued: Dec 19th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
jleblanc,
Avalanche Canada
Low avalanche hazard doesn't mean no danger.
As you gain elevation, assess continually the conditions.
Summary
Confidence
Avalanche Summary
No new avalanche was reported lately and avalanche control did not trigger any avalanches recently.
If you go out in the backcountry, please consider sharing your observations on the Mountain Information Network (MIN).
Snowpack Summary
On sheltered locations, 10-20 cm of snow overlies a layer of surface hoar, while a melt-freeze crust is found on steep solar aspects. A prominent rain crust is found 35 to 65 cm deep, which is strong enough to cap another preserved layer of surface hoar found in most areas. There have not been significant results on this layer during tests and there has been no recent avalanche activity attributed to this layer in the region.
Typical snowpack depths at treeline are 70 to 100 cm, and taper rapidly below treeline.
Weather Summary
Tuesday Night
Cloudy with scattered flurries, trace accumulation, alpine wind southwest 30 to 50 km/h, treeline temperature -3° C, freezing level 1500 m.
Wednesday
Cloudy with isolated flurries, trace accumulation, alpine wind southwest 20 to 40 km/h, treeline temperature 0° C, freezing level 1700 m.
Thursday
Mainly cloudy with isolated flurries, trace accumulation, alpine wind southwest 40 to 50 km/h, treeline temperature -2° C, freezing level 1700 m.
Friday
Increasing cloudiness, snow 5-10 cm, alpine wind west 40 to 60 km/h, treeline temperature 0° C, freezing level 1700 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Make observations and assess conditions continually as you travel.
- Carefully evaluate bigger terrain features on an individual basis before committing to them.
- 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
Persistent Slabs
A preserved layer of surface hoar is found down 35 to 65 cm. At higher elevations, where the weak layer is not being capped by a rain crust, it may be reactive to human triggers. Continuously assess this tricky weak layer as you gain elevation.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 20th, 2023 4:00PM
