Avalanche Forecast
Issued: Dec 17th, 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
New wind slab formation is expected in exposed terrain on Wednesday.
Where more than 25 cm of new snow accumulates, there is the potential for a more widespread storm slab problem to develop.
Summary
Confidence
Low
Avalanche Summary
No new avalanches have been reported recently.
Snowpack Summary
As much as 15 cm of snowfall accumulated over the weekend with strong southwest wind. This new snow was likely redistributed into lee features in wind-exposed terrain, potentially creating small wind slabs. This recent storm snow likely overlies a melt-freeze crust on south slopes and wind-affected surfaces in exposed terrain. New snowfall and wind on Wednesday are expected to continue to develop wind slabs in exposed terrain.
The snowpack depth varies greatly as well, windward slopes may only have 50 cm on them while leeward slopes could have as much as 150 cm.
Weather Summary
Tuesday Night
Cloudy with 5-10 cm of snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature -9 °C.
Wednesday
Cloudy with 10 to 20 cm of snow. 40 to 80 km/h southwest ridgetop wind. Treeline temperature -4 °C.
Thursday
Mainly sunny. 20 to 40 km/h west ridgetop wind. Treeline temperature -5 °C.
Friday
A mix of sun and cloud. 30 to 50 km/h west ridgetop wind. Treeline temperature -1 °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 alert to conditions that change with elevation, aspect, and exposure to wind.
Problems
Wind Slabs
Watch for new wind slab formation on Wednesday as new snow accumulates with strong southwest wind.
If you see more than 25 cm of new snow accumulate during the day, there is the potential for a more widespread storm slab problem to develop.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 18th, 2024 4:00PM
