Avalanche Forecast

Issued: Jan 20th, 2012 4:00PM

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

mike eder, Parks Canada

Jasper.

Slow warming trend should allow the snowpack to adjust, but cornice failure could still occur in the high alpine. Flurries are not expected to bring much snow to the forecast area.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain

Problems

Wind Slabs

additional windslabs will develop on lee aspects from moderate SW winds

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Deep Persistent Slabs

This layer could be triggered by large cornice collapses as they respond to the gradual warming trend through the weekend

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Unlikely - Possible

Expected Size

2 - 4

Valid until: Jan 21st, 2012 4:00PM