Avalanche Forecast
Issued: Nov 27th, 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
Fresh and reactive wind slabs may form at treeline and above. Start conservative and watch for signs of instability like cracking or whumpfing.
Summary
Confidence
Low
Avalanche Summary
Natural avalanche activity has tapered. Large triggers like explosives continue to trigger slab avalanches up to size 2 on Wednesday.
Last weekend a natural avalanche cycle occurred, and numerous storm slab avalanches were reported up to size 2.5 in the alpine and treeline.
Forecast light to moderate winds may form reactive wind slabs in exposed terrain features, especially near ridgeline.
If you head out please consider submitting a MIN.
Snowpack Summary
Up to 30 cm of snow fell last weekend. This brings storm snow accumulations around 50 to 60 cm over the past week. Reports specifically from the Lizard Range show a buried layer of graupel down 60 (ish) cm.
Stiffer wind-affected snow may be found near ridgelines and on open slopes. The surface snow remains soft in wind protected areas, like the trees.
The bottom of the snowpack has a crust that sits just above the ground. Snowpack depth is 100-180 cm at treeline.
Weather Summary
Wednesday Night
Cloudy with isolated flurries. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -7 °C.
Thursday
Mostly cloudy with isolated flurries. 10 to 40 km/h southwest ridgetop wind. Treeline temperature -6 °C.
Friday
Cloudy with sunny periods. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -6 °C.
Saturday
Cloudy with isolated flurries 2 to 5 cm. 10 to 25 km/h southwest ridgetop wind. Treeline temperature -8 °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.
- Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
- Seek out sheltered terrain where new snow hasn't been affected by wind.
Problems
Wind Slabs
Wind slabs may be reactive at ridgeline and in exposed terrain features.Expect sluffing or isolated storm slabs in wind protected areas, like the trees.
Aspects: North, North East, East, South East, South, South West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Nov 28th, 2024 4:00PM
