Avalanche Forecast
Regions: Northwest Coastal.
Confidence
Fair - Timing, track, or intensity of incoming weather is uncertain for the entire period
Weather Forecast
Saturday: Cloudy with scattered light precipitation possible. Light to moderate southerly winds. Freezing level around 1500 m.Sunday: Mainly dry and sunny. Freezing level around 1200 m, falling to near valley floor overnight. Light winds.Monday: Light, scattered precipitation. Freezing level rising to around 1000 m in the afternoon. Light winds.
Avalanche Summary
Reports of natural glide activity from the Skeena corridor continue. Cornice fall and ice fall triggered 1-1.5 m deep wet slabs in the Bear Pass area on Thursday.
Snowpack Summary
New wind slabs may have built on lee slopes. The snow surface below about 1000 m has not been re-freezing overnight, leading to weak soft snow. Large cornices and ice cliffs pose a threat from above.As we transition into spring, the surface layers have a great deal of influence on the snowpack. When there is a solid re-frozen surface crust, travel is fast and easy, and the snowpack is held together by the surface cap. Any deeper persistent weak layers are unlikely to fail until the surface cap breaks down from daytime heating. When there is no crust, surface layers and any deeper weak layers may fail, depending on the amount of heat and the triggering force that is applied. If it cools off and snows, new snow and wind slabs may not bond well to the hard spring crusts. For more information on Spring Conditions and ways to mitigate risk, please visit the new Forecasters' Blog Post.
Avalanche Problems
Wind Slabs
Aspects: North, North East, East.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 4
Loose Wet
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Possible - Likely
Expected Size: 1 - 5
Wet Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 7