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
Look for signs of instability as you move through terrain.
Wind slabs may rider triggerable at higher elevations.
Summary
Confidence
Moderate
Avalanche Summary
Several size 1 (small) avalanches were reported in the alpine on Friday.
Looking ahead, we expect rider-triggerable avalanches to be possible, especially in the alpine where reactive wind slab deposits exist.
Observations have been limited in this region. If you are going out in the backcountry, please consider sharing your observations to the Mountain Information Network (MIN).
Snowpack Summary
15 to 25 cm of new snow at upper elevations since Saturday has been transported by moderate and strong southerly winds into reactive deposits on north-facing slopes.
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 Friday.
Weather Summary
Sunday Night
Cloudy with 10 to 20 mm, falling as snow above 1000 m. 50 to 70 km/h southwest ridgetop wind. Freezing level 1250 m.
Monday
Cloudy with some clearance in the afternoon, with up to 3 mm of mixed precipitation. 30 to 50 km/h south ridgetop wind. Freezing level 1500 m rising in the afternoon.
Tuesday
Cloudy with 5 to 15 mm of mixed precipitation. 40 to 60 km/h southwest ridgetop wind. Freezing level 1500 m dropping to 1000 m.
Wednesday
Cloudy with trace precipitation. 40 to 60 km/h south ridgetop wind. Freezing level around 1400 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Make observations and continually assess conditions as you travel.
- 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
Wind Slabs
Rider-triggerable wind slabs may be found at higher elevations. Watch for ridgetop entries, convex rolls and gully features.
Aspects: North, North East, East, South East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 23rd, 2024 4:00PM
