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Archived

Avalanche Forecast

Apr 3rd, 2012–Apr 6th, 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
2: Moderate
The avalanche danger rating at treeline will be moderate
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Waterton Lakes.

Over the weekend warm temperatures have strongly affected the snowpack. Wed these temps will continue with a small amount of precip. Thurs and Friday the hazard should improve with a cooling trend. Still in the transition period to good corn skiing.

Avalanche Problems

Loose Wet

The upper snowpack is now a series of crusts with weak moist snow in between. Daytime heating will decrease stability of these surface layers, especially on south aspects. Be cautious if you are traveling on moist snow: low angle supported terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2

Wind Slabs

Obvious slabs have developed in open lee areas. Avoid large or planar slopes where these slabs may be more continuous. Feel for harder slabs now hidden by recent storm snow.

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Cornices

Large cornices formed last week with warm moist conditions and strong wind transport. Consider these as potential triggers and limit your exposure to slopes below them.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2