Avalanche Forecast
Issued: Nov 27th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
trettie,
Avalanche Canada
Isolated features at higher elevations may hold enough snow to be above threshold for avalanches but early season hazards are more concerning.
Summary
Confidence
Avalanche Summary
No avalanches have been reported in the past few days. Please consider filling out a MIN report if you are out in the backcountry.
Snowpack Summary
Surface conditions are highly variable. In the alpine steep south facing terrain has a sun crust and all other aspects are wind effected. At treeline a crust can likely be found on all aspects, on sheltered features large surface hoar could exist. This surface hoar will be something to keep in mind after it is buried. Below treeline the snowpack tapers off quickly.
A crust buried on November 21 is down 10 to 30 cm.
Above about 1600 m, snowpack height ranges from 50 to 100 cm, increasing with elevation and deepest on the west side of Hwy 99. The base of the snowpack is well consolidated and bonded to the ground and glacial ice.
Weather Summary
Monday Night
Mostly clear with no new snow expected, southwest alpine wind 10 to 25 km/h, treeline temperature around -4°C, possible temperature inversion with alpine temperature around -1°C.
Tuesday
Sunny in the morning with increasing cloud in the afternoon, no new snow expected, southwest alpine wind 10 to 25 km/h, above freezing layer around 2000 m.
Wednesday
Mostly clear, no new snow expected, southeast alpine wind 5 to 15 km/h, treeline temperature around -5°C.
Thursday
Cloudy with trace amounts of new snow expected, southwest alpine wind 15 to 25 km/h, treeline temperature -5°C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.
- Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
Problems
Wind Slabs
Small wind slabs may be found in the alpine. These slabs are likely only triggereble where they overlie facets.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Nov 28th, 2023 4:00PM
