Avalanche Forecast
Regions: Glacier.
Weather Forecast
Cloudy with scattered flurries today accumulating to 5cm. Freezing levels rising to 700m with an alpine high of -9. Ridge winds will be southeast 25 km/h. Sun returns on the weekend with a ridge of high pressure but temperatures will remain cold. On monday a low pressure system with a SW flow brings more scatted precipitation and another 10cm.
Snowpack Summary
10cm of new snow fell overnight bringing the height of snow at treeline to 2m. Recent storm snow is settling into a persistent slab sitting on the December 18th facet/ surface hoar layer down55cm. Stability tests are showing that the Dec 18th interface is reactive. Buried wind slabs exist near ridges. The lower pack contains faceted weak layers.
Avalanche Summary
Hand charge testing produced 1 size 1 avalanche in a thin storm slab. Yesterday, a field team observed whumphing and cracking in the storm slab on approach to the Grizzly Shoulder head wall.
Confidence
Avalanche Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Possible - Likely
Expected Size: 1 - 3
Wind Slabs
Aspects: North, North East, East, South East, South, South West.
Elevations: Alpine, Treeline.
Likelihood: Possible - Likely
Expected Size: 2 - 3