Archived

Avalanche Forecast

Dec 26th, 2011–Dec 27th, 2011

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

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

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.

A cornucopia of windslabs exist across the landscape with steady moderate winds. Many slopes are stripped bare or wind pressed. Cool temperatures aiding stability after 20cm warm storm but human triggered avalanches remain possible.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind effect is extremely variable

Avalanche Problems

Wind Slabs

Moderate winds continue to hammer the Icefields. 20cm last night blew away or melded into existing windslab. surface conditions range from boilerplate, 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