Avalanche Forecast
Issued: Dec 23rd, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Persistent Slabs.
Avalanche Canada,
Avalanche Canada
Heightened avalanche conditions persist due to uncertainty over buried weak layers' distribution and reactivity, despite a generally stable snowpack otherwise.
Summary
Confidence
Moderate
Avalanche Summary
A few skier and explosive-triggered surface slab avalanches were reported over the weekend. These avalanches were generally no deeper than 15 cm and up to size 1.5.
Snowpack Summary
Up to 20 cm of new snow over the weekend continues to settle and bond to undelaying surfaces. Southwest winds have redistributed new snow into deeper deposits at higher elevations. At lower elevations, surface conditions range from crusty to moist, depending on the time of day and local temperatures.
Down 50 to 100 cm there are potential weak layers of facets, crusts, and in some places surface hoar. The distribution of these layers is highly variable throughout the region.
Treeline snow depths range from 100 to 180 cm.
Weather Summary
Monday Night
Cloudy with 0 to 5 cm of snow. 10 to 30 km/h south ridgetop wind. Treeline temperature -4 °C.
Tuesday
Cloudy with 5 to 15 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -4 °C.
Wednesday
Mix of sun and cloud with 0 to 2 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -7 °C.
Thursday
Cloudy with up to 20 cm of snow. 30 to 50 km/h south ridgetop wind. Treeline temperature -7 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.
- Surface hoar distribution is highly variable. Avoid generalizing your observations.
- Be careful as you transition into wind-affected terrain.
Problems
Wind Slabs
Recent snowfall has been redistributed into fresh wind slabs at higher elevations.
Aspects: North, North East, East, South East, South, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
Buried surface hoar, and in some areas facets over a crust remain a concern. Particularly in steep open slopes at treeline and above.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 24th, 2024 4:00PM
