Avalanche Forecast
Issued: Jan 16th, 2024 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
bchristie,
Avalanche Canada
For the best riding, lower avalanche danger, and more pleasant weather, stick to terrain that is sheltered from the wind.
Wind slabs can currently be found on all aspects.
Summary
Confidence
Avalanche Summary
On Monday, a few large natural avalanches were reported in the highway corridor on both the Canadian and American sides of White Pass. These likely occurred with wind loading recent storm snow into lee features.
Wind slabs may continue to be rider triggerable on all aspects on Wednesday.
Snowpack Summary
Up to 20 cm of recent snow and variable direction, moderate to strong winds will likely have formed wind slab on all aspects and at all elevations.
A layer of surface hoar that formed on Christmas Eve may be found 50 cm deep, but recent observations suggest it has bonded.
Weather Summary
Tuesday Night
Increasing cloud through the night. No new snow expected. Strong northeast ridgetop wind. Treeline temperature around -11 °C.
Wednesday
Mostly cloudy. Trace of new snow expected. Strong to extreme northeast ridgetop wind. Treeline temperature falling to around -18 °C.
Thursday
Mostly cloudy. Light snowfall expected. Strong northeast ridgetop wind. Treeline temperature around -18 °C.
Friday
Partly cloudy. Light snowfall expected. Strong northeast ridgetop wind. Treeline temperature around -21 °C.
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 slopes that sound hollow or drum-like.
- Seek out sheltered terrain where new snow hasn't been wind-affected.
- Approach lee and cross-loaded slopes with caution.
Problems
Wind Slabs
Watch for blowing snow forming reactive new wind slabs through the day. With strong wind, slab formation may be further downslope. Variable winds may have formed wind slabs on a variety of aspects in exposed terrain.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 17th, 2024 4:00PM
