Avalanche Forecast

Issued: Feb 10th, 2012 8:20AM

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

eric dafoe, Parks Canada

Glacier.

A weak warm front moves over the Columbia today bringing mostly cloud with some possibility of isolated flurries. Similar for Saturday with an upper trough providing possible flurries. Expect some sunny breaks, milder temps and freeze level to 800m

Summary

Problems

Wind Slabs

Moderate to strong winds earlier in the week formed breakable to hard slabs in the alpine and open TL slopes. Watch for touchy thin slabs on convex rolls and areas of down flow winds. A skier was pushed by a small slide on Wed in cliff terrain.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Cornices

Cornices are large, and are unpredictable. Recent large cornice failures have not all produced slab avalanches. The hard mass from the cornice fell as size 2.5 to 3.0 fast moving avalanches running onto fans.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 3

Valid until: Feb 11th, 2012 8:00AM