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
Recent snow is continuing to settle and bond with underlying surfaces. Exercise extra caution around ridge crests and steep roll-overs, where wind slabs may still be reactive.
Summary
Confidence
Moderate
Avalanche Summary
Storm slab avalanche activity appears to have largely come to a stop following Wednesday's widespread avalanche cycle. However, slopes that have been heavily wind-loaded over the last week likely remain reactive to riders.
Snowpack Summary
Approximately 10 to 20 cm of fresh snow has fallen over the weekend. This has buried wind-affected surfaces in exposed terrain and settled powder in sheltered slopes. At lower elevations, new snow sits atop a recently formed crust in most areas.
The mid and lower snowpack is generally well-settled and stable. However, there is some uncertainty about a potential surface hoar layer buried 50 to 100 cm deep, which could be reactive on isolated, steep, sheltered slopes around treeline and below.
Snow depths at treeline range from 120 to 180 cm.
Weather Summary
Sunday Night
Cloudy. 40 to 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.
Monday
Cloudy with 0 to 2 cm of snow. 40 to 50 km/h southwest ridgetop wind. Treeline temperature -3 °C.
Tuesday
Cloudy with 2 to 8 cm of snow. 40 to 50 km/h southwest ridgetop wind. Treeline temperature -1 °C.
Wednesday
Mostly cloudy. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -7 °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.
- Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
- Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.
Problems
Wind Slabs
Newly formed and reactive slabs continue to form in wind-loaded terrain.
Take a cautious approach to steep openings at and below treeline where buried surface hoar may be preserved.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 23rd, 2024 4:00PM
