Avalanche Forecast
Regions: Glacier.
Weather Forecast
Light snow and moderate-strong winds should back off this morning as a ridge of high pressure builds bringing increasing sun this afternoon. Periods of sun this afternoon may strong enough to cause trees to shed snow and loose sluffing; which will be enough to trigger the surface hoar layer. Mon and Tues will see increasing cloud and flurries.
Snowpack Summary
Another 20cm snow, mild temps, and S'ly winds are forming a soft slab over a widespread surface hoar layer down 35-55cm. It is most reactive where it is largest; between 1700-1900m; or on steep solar aspects where it sits on a crust. Tests indicate it is likely to be triggered by light loads (easy planar/collapses and RB2 whole block).
Avalanche Summary
There continue to be human triggered avalanches up to size 2 on the most recent surface hoar layer. These have occurred on all aspects and elevations, with the avalanches propagating up to 300m wide and traveling fast and far. Yesterday, over 25 size 1.5-3 natural avalanches occurred from steep confined avalanche paths triggered by wind loading.
Confidence
Avalanche Problems
Persistent Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Likely
Expected Size: 1 - 3
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood: Possible - Likely
Expected Size: 1 - 2