Avalanche Forecast
Issued: Nov 30th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Loose Wet.
Avalanche Canada,
Avalanche Canada
Seek out sheltered powder for better, safer riding.
Watch for wind-loaded pockets as this is where you'll trigger an avalanche.
Summary
Confidence
Low
Avalanche Summary
A few small (size 1) human-triggered wind slab avalanches were reported in the alpine on Friday by our neighbours in the USA. They seem to be running on a crust, that may have weak facet crystals above.
Please consider sharing any observations you have on the Mountain Information Network.
Snowpack Summary
Saturday's small amount of new snow adds to any wind loading that occurred on Friday loading a buried crust; possibly with small, weak facets on top. This caught riders off guard on Friday.
The bottom of the snowpack contains several crusts that have not been a concern.
Around 100 cm of snow can be found at treeline. This diminishes rapidly below about 1500 m.
Weather Summary
Saturday Night
Cloudy. 20 to 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1100 m.
Sunday
Mostly sunny. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2700 m.
MondaySunny. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 4 °C. Freezing level 3200 m.
TuesdaySunny. 10 to 20 km/h southwest ridgetop wind. Treeline temperature 4 °C. Freezing level 3200 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
- Carefully evaluate steep lines for wind slabs.
- Back off slopes as the surface becomes moist or wet with rising temperatures.
Problems
Wind Slabs
New wind slabs may be sliding on a buried crust. Test wind slabs on small features before committing to large slopes that the wind has loaded.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Wet
This problem is likely small and only in steep, sunny slopes sheltered from the wind.
Aspects: South East, South, South West, West.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 1st, 2024 4:00PM
