Archived

Avalanche Forecast

Dec 25th, 2011–Dec 26th, 2011

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: Jasper.

Intense precipitation and gusting strong winds occurring through the Icefields at 1600hrs. Merry Christmas.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Monday

Avalanche Problems

Wind Slabs

Moderate W-SW winds continue to affect the area. Expected 10-15cm of snow and winds tonight will add to this problem at all elevations. The new snow will rest upon smooth windslabs, sustrugi, and loaded lee slopes. Avoid slabby feeling slopes.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Deep Persistent Slabs

Basal facet collapses are still possible and will remain a concern as consequences would be big if triggered. Shallow snowpack areas and rocky outcrops are trigger locations.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3