Archived

Avalanche Forecast

Feb 9th, 2012–Feb 10th, 2012

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: Glacier.

The main hazards today are hard slabs in the alpine, cornices, and moist snow on solar aspects. The best riding will be on protected north aspects.

Avalanche Problems

Wind Slabs

Moderate to strong winds have formed a hard slab in isolated locations in the alpine, most notably on convex roles and areas of down flow winds. Even small slabs can have large consequences if you are above a cliff or drop.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Loose Wet

Overcast skies may limit the effects of direct solar radiation today, however the air mass is expected to stay very mild. If the sun does come out this afternoon, be aware of moist snow sluffs from steep solar aspects and rock outcrops.

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Cornices

Cornices are large, and are unpredictable. Several cornice failures lately have not produced avalanches, however a few notable cornice drops have produced avalanches to size 3.5 where the snowpack fails on very deep layers.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 3