Avalanche Forecast

Issued: Dec 16th, 2011 4:19PM

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

mike eder, Parks Canada

Jasper.

strong winds from SW and shifting to NW by Sunday have increased avalanche danger. Warmer temperatures are expected at lower elevations.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

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

Problems

Deep Persistent Slabs

basal facet collapses may occur with warmer temperatures at lower elevations

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

2 - 3

Loose Dry

windslabs may become reactive with additional snowload on high alpine ridge crests

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Valid until: Dec 17th, 2011 4:00PM