Archived

Avalanche Forecast

Apr 12th, 2012–Apr 13th, 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

3: Considerable

The avalanche danger rating below treeline will be considerable

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

3: Considerable

The avalanche danger rating below treeline will be considerable

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: Glacier.

The forecast is for rain later today. Watch for moist avalanches caused by rain saturation or warming. Avoid being under cornices, and be aware that glide cracks can fail unpredictably.

Avalanche Problems

Loose Wet

Yesterday it got up to 13 C, and did not freeze last night. This means it will take very little warming today to cause avalanches. Rain in the forecast today will make things soggier. Use extra caution below rock outcrops and trees.

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

Elevations: All elevations.

Likelihood: Very Likely

Expected Size: 1 - 3

Wet Slabs

Wet and dry slabs have been observed on all aspects. On sunny slopes, they are very moist. Even on north aspects, dryer avalanches have been triggered by daytime warming.

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

Elevations: All elevations.

Likelihood: Likely

Expected Size: 2 - 3

Cornices

Cornices are massive, drooping, and beginning to fail. There is good potential for cornice falls to produce large avalanches.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4