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Archived

Avalanche Forecast

Feb 7th, 2012–Feb 8th, 2012
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Glacier.

Touchy windslabs, cornice falls and solar triggered loose avalanches are the main concerns today.

Avalanche Problems

Loose Dry

Watch for changing surface conditions when slopes start receiving sun. As the snowpack warms loose avalanches are possible, especially on steep slopes. Rocky outcrops are prime trigger spots. Limit your exposure to slopes adjacent to hot spots.

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 3

Cornices

Large cornices exist on many ridges in the park. We have observed them failing recently in part due to the solar warming. Large cornice falls can trigger deep weak layers. Use extra caution on corniced ridges, they can fail well back from the ridge.

Aspects: North, North East, East, South East, South.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 3

Wind Slabs

Wind slabs formed on lee slopes during the last storm period due to strong southerly winds. Recent NE winds have also loaded southerly slopes. Use caution on steep, unsupported features in the alpine near ridge-crests and on cross-loaded features.

Aspects: North, North East, East, South East, South, South West, West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3