Avalanche Forecast
Issued: Dec 1st, 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
Stick to mellow slopes that are sheltered from the wind to find the best riding and lowest avalanche danger.
Extra caution is required due to the uncertain strength of buried weak layers.
Summary
Confidence
Moderate
Avalanche Summary
No new avalanches have been reported, but reports have been extremely limited.
With recent snow available for transport, the forecasted strong wind could make human-triggered wind slab avalanches likely.
If you head to the backcountry please consider submitting your observations to the Mountain Information Network.
Snowpack Summary
Forecasted strong southwesterly winds are expected to build reactive wind slabs on leeward north and east facing slopes.
40 to 70 cm of recent storm snow is sitting on top of various snow surfaces. These include small facets and/or surface hoar in sheltered areas, and heavily wind-affected snow in exposed terrain.
Two surface hoar layers can be found in the middle of the snowpack: One down 60 to 80 cm and another down 60 to 110 cm at treeline.
Deeper in the snowpack, a rain crust from early November seems to be bonding well to overlying layers.
Alpine snow depths vary greatly across the region and from aspect to aspect.
Weather Summary
Sunday Night
Cloudy with 0 to 5 cm of snow. 40-50 km/h southwest ridgetop wind. Treeline temperature -2 °C.
Monday
Cloudy with light rain up to treeline and 3 to 5 cm of snow above. 45-60 km/h southwest ridgetop wind. Treeline temperature 0°C.
Tuesday
Cloudy with moderate rain below 1750 m. 30-40 km/h southwest ridgetop wind. Treeline high 3 °C.
Wednesday
Cloudy with light rain below 2000 m. 20-35 km/h southwest ridgetop wind. Treeline low -2 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
- Be aware of the potential for larger than expected storm slabs due to buried surface hoar.
- In times of uncertainty, conservative terrain choices are our best defense.
Problems
Wind Slabs
Strong southwest winds are redistributing 30-50 cm of storm snow. Buried weak layers below the new snow may create larger than expected avalanches.
Aspects: North, North East, East, South East, North West.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 2nd, 2024 4:00PM
