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Archived

Avalanche Forecast

Feb 28th, 2012–Mar 2nd, 2012
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Waterton Lakes.

Strong winds forecast for Wed and Thurs will continue to build windslabs mainly on N and E aspects. The winds and small amounts of new snow will maintain elevated concern through Friday.

Avalanche Problems

Wind Slabs

Recent storm snow is being redistributed by SW winds. Current slabs are 20 - 50cm deep and will be growing with strong winds Wed and Thurs. Watch the loaded lee slopes especially near ridgelines and crossloaded features.

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 3

Persistent Slabs

Suncrusts and isolated pockets of surface hoar now down 50 and 60cm. With recent storm snow these layers are not as sensitive to triggering but the size of avalanches have increased.

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

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 3