Avalanche Forecast
Issued: Nov 28th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
rgoddard,
Avalanche Canada
Shifting winds continue to produce wind slabs on a variety of aspects at upper elevations.
Avoid steep, rocky, and wind-affected areas where triggering slabs are more likely.
Summary
Confidence
Avalanche Summary
Some reactive wind slab activity was reported by people submitting to the Mountain Information Network. Please continue to share any of your observations via the Mountain Information Network to help us and fellow recreationists.
Snowpack Summary
A thin snowpack exists in most areas, with 65 to 85 cm found at White Pass. Upwards of 100 cm may be found in wind-loaded areas.
Heavily wind-affected snow can be found predominantly above 1000 m. Wind slabs have been reported on north and east-facing slopes but are likely to be found on all aspects.
Weather Summary
Monday Night
Mostly cloudy, 0 to 3 cm accumulation, winds north 35 km/h, temperatures reaching -15 C.
Tuesday
A mix of sun and cloud, trace accumulation, winds north to northeast 40 to 50 km/h, -20C.
Wednesday
Mostly clear skies, no accumulation, winds out of the north 20 to 35 km/h, temperatures -20 to -30 C.
Thursday
Cloudy, 4 - 8 cm accumulation, winds northeast 20 to 30 km/h, temperatures around -15 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.
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- Watch for signs of instability like whumpfing, hollow sounds, shooting cracks or recent avalanches.
- Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
Problems
Wind Slabs
Wind slabs are most likely on north and east-facing slopes but due to shifting winds, can potentially be found on all aspects.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Nov 29th, 2022 4:00PM
