Avalanche Forecast
Issued: Dec 22nd, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Avalanche Canada,
Avalanche Canada
Head to sheltered areas for the best riding conditions. The early December crust has shown reactivity in wind affected features.
Summary
Confidence
Low
Avalanche Summary
The early December crust and facets produced a size 1 machine triggered avalanche on Saturday, on a west facing treeline slope (photo below). The surface snow was wind loaded above the crust, likely increasing reactivity.
Warm temperatures also produced loose wet activity at lower elevations.
Snowpack Summary
30 to 50 cm wind affected snow sits over a melt-freeze crust from early December. This is the current layer of concern, producing avalanche activity and showing reactivity on testing.
There are no deeper layers of concern.
Data is very limited in this region, please submit MIN reports if you head into the mountains. Any data or photos are helpful!
Weather Summary
Saturday Night
Cloudy with up to 2 cm of snow. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1300 m.
Sunday
A mix of sun and cloud. 40 to 50 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 1200 m.
Monday
A mix of sun and cloud with up to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -2 °C.
Tuesday
Mostly cloudy with up to 5 cm of snow. 60 km/h south ridgetop wind. Treeline temperature 0 °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.
- Expect slab conditions to change drastically as you move into wind-exposed terrain.
- If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
Problems
Wind Slabs
Deeper and more reactive slabs will be found around ridgelines, and where wind affected storm snow sits over the early December crust and facets.
Aspects: North, North East, East, South East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 23rd, 2024 4:00PM
