Avalanche Forecast
Issued: Dec 1st, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
trettie,
Avalanche Canada
Continue to assess for wind slab as you move through terrain. Wind slabs are becoming stubborn to rider triggering but may be found in steep terrain and cross loaded features. Use extra caution during the cold weather and increase your safety margin.
Summary
Confidence
Avalanche Summary
No new avalanches were reported in the past few days.
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Snowpack Summary
The upper snowpack has been heavily wind effected, with hard wind slabs found on all aspects. Sustained cold temperatures has likely softening the snow surface in non wind effected terrain. An average of 65 to 90cm can be found at treeline in White Pass. Upwards of 100 cm may exist in wind-loaded areas.
The lower snowpack consists of soft, sugary facets and a crust near ground level.
Weather Summary
Thursday Night
A trace of new snow expected with moderate to strong northeast winds. Temperatures at 1500m around -20.
Friday
A mix of sun and cloud with no new snow expected. Winds strong from the Northeast in the morning and shifting to light south in the late afternoon. temperatures around -22 at valley bottom. Possibility of a temperature inversion with temperatures at treeline around -15.
Saturday
Mostly clear with no new snow expected. Light to moderate winds from the northwest. Temperatures around -14 at valley bottom. Temperature inversion likely.
Sunday
Mostly cloudy with light flurries bringing trace amounts of new snow. Light northerly winds. Temperature inversion breaks down, temperatures around -9 at 1500m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Recent wind has varied in direction so watch for wind slabs on all aspects.
- Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
Problems
Wind Slabs
Winds continue to vary in direction. Look out for rider triggerable wind slabs near ridge crests and beware of cross loaded features.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 2nd, 2022 4:00PM
