Avalanche Forecast
Issued: Mar 10th, 2021 8:01AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Chris Gooliaff,
New wind slabs have been created in the Alpine. Watch for them as you transition into your descent line.
S'ly aspects were recently baked by the strong March sun, creating a breakable crust well into the Alpine.
Summary
Weather Forecast
Daytime convective flurries will cruise through Rogers Pass today, followed by sun and cloud the next couple of days.
Today: Cloudy with isolated flurries and sunny periods, Alp high -8*C, light/mod W winds
Thurs: Sun and cloud, Alp high -8*C, light W winds
Fri: Sun and cloud, Alp high -2*C, light SW winds
Snowpack Summary
A dusting overnight (~5cm) has covered up a breakable suncrust on SE through W aspects, while N'ly aspects remain soft and dry. Yesterday's afternoon winds created isolated wind slabs in immediate lee areas and ridge crests.
Avalanche Summary
Several small, solar-induced avalanches to sz 1.5 were noted from steep, rocky S'ly aspects. Explosive testing at the W end of the park resulted in one sz 2 thin wind slab avalanche from 14 rounds in total. A icefall-triggered sz 2.5 was observed in steep, glaciated terrain below Mt Jupiter; the icefall did not trigger any surface slab.
Confidence
Problems
Wind Slabs
Yesterday's spike in S'ly winds redistributed recent storm snow. Small, isolated wind slabs can be found in immediate lee areas/ridge crests in the Alpine.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Use caution in lee areas. Recent wind loading has created wind slabs.
Aspects: North, North East, East, West, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 11th, 2021 8:00AM
