Avalanche Forecast
Regions: Glacier.
Weather Forecast
A weak ridge of high pressure is developing today. Unsettled weather is expected through the weekend. Throughout the weekend expect flurries & a mix of sun and cloud, which may have a strong "greenhouse effect". Alpine temps are expected to be -3'C with moderate W'ly winds continuing to load lees. A spring melt-freeze cycle should start to develop.
Snowpack Summary
~50cm of new snow in the past 5 days, combined with mild temps and sustained SW winds, is building a deep storm slab. This slab overlies a crust, which provides a good sliding surface, on all aspects up to ~2200m and to ridgetop on solar aspects. Multiple crusts in the upper meter may promote step-down avalanches.
Avalanche Summary
Yesterday, avalanches up to size 2.5 were triggered by skiers. They were generally larger on N'ly aspects where the slab is deeper due to wind-loading. They were easily triggered in predictable places; steep slopes with a convexity. Natural size 2-3 avalanches were observed from all aspects along the highway. Several were from skiable terrain.
Confidence
Timing or intensity of solar radiation is uncertain
Avalanche Problems
Storm Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Likely
Expected Size: 2 - 3
Persistent Slabs
Aspects: North, North East, East, South East, South, South West.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 2 - 3
Loose Wet
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood: Possible - Likely
Expected Size: 1 - 2