Archived

Avalanche Forecast

Apr 26th, 2012–Apr 27th, 2012

Alpine

4: High

The avalanche danger rating in the alpine will be high

Treeline

4: High

The avalanche danger rating at treeline will be high

Below Treeline

4: High

The avalanche danger rating below treeline will be high

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

3: Considerable

The avalanche danger rating below treeline will be considerable

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

2: Moderate

The avalanche danger rating below treeline will be moderate

Regions: Glacier.

Almost a week of above freezing temperatures at all elevations has weakened the snowpack. Exposure to avalanche terrain is not recommended today.

Avalanche Problems

Loose Wet

Widespread cycle of loose wet observed yesterday. Expecting more of the same until air temperatures cool below freezing.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 3

Wet Slabs

Avalanche control yesterday triggered some wet slabs with crowns 40cm or more deep. Loose wet avalanches could trigger these slabs

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 4

Cornices

Many cornice failures observed recently. Cornice failures will trigger loose and slab avalanches

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 2 - 4