Avalanche Forecast
Issued: Dec 20th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
Avalanche Canada,
Avalanche Canada
Continuously monitor conditions as you move through terrain.
Storm slabs may still be reactive to rider traffic at higher elevations.
Summary
Confidence
Moderate
Avalanche Summary
Observations have been limited in this region. We suspect that natural avalanche activity may have occurred in the alpine with each storm.
If you are going out in the backcountry, please consider sharing your observations to the Mountain Information Network (MIN.
Snowpack Summary
Up to 10 cm of new snow may have fallen by 4 pm on the 21st. This new snow will be accompanied by moderate southerly winds which will form deeper deposits on northerly aspects.
In the alpine, an estimated 50 to 90 cm of snow sits above a thin crust. We are not concerned about this layer in this region
Below treeline a crust or moist snow will likely be observed on the surface.
Snow depths at treeline vary across the region. Around 140 cm is reported in the Coquihalla and 85 cm near Manning Park.
Check out this MIN from the region.
Weather Summary
Friday NightMostly cloudy with 0 to 2 mm of mixed precipitation. 30 to 50 km/h south ridgetop wind. Freezing level around 2100 m.SaturdayIncreasing cloud throughout the day with up to 10 mm of mixed precipitation. 20 to 40 km/h south ridgetop wind. Freezing level rising to 1900 m.
Sunday
Mix of sun and cloud with 2 to 4 mm of mixed precipitation. 30 to 50 km/h south ridgetop wind. Freezing level around 1700 m.
Monday
Mostly cloudy with around 10 cm of snow. 20 to 50 km/h southerly ridgetop wind. Treeline temperature -1 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Make observations and continually assess conditions as you travel.
- Keep your guard up as storm slabs may remain sensitive to human triggering.
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
- Be alert to conditions that change with aspect and elevation.
Problems
Storm Slabs
Rider triggerable storm slabs may still be found at higher elevations. The largest and most reactive slabs will likely be found on northerly aspects.
Wet loose avalanches are possible at lower elevations.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 21st, 2024 4:00PM
