Avalanche Forecast

Issued: Jan 28th, 2012 8:04AM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is moderate. Known problems include Wind Slabs and Persistent Slabs.

jon schleiss, Parks Canada

Glacier.

Rising winds and temperatures will contribute to slab development into Sunday. Watch for soft slabs today near ridge crests in the alpine and treeline.

Summary

Problems

Wind Slabs

Strong S-SW winds associated with the previous storm created windslabs down 30-60cm. This is now burried under 20-30cm in Alpine and treeline areas which may make it difficult to identify. Moderate winds last night may have slabbed the upper snowpack

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

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

2 - 3

Persistent Slabs

60-80cm of storm snow now rests on the cold snow Jan 20th interface. This layer can still be triggered by skiers or as a step down avalanche.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible

Expected Size

2 - 4

Valid until: Jan 29th, 2012 8:00AM