Avalanche Forecast

Issued: Dec 1st, 2011 4:41PM

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

steve blake, Parks Canada

Jasper.

Highway 93 closed from Saskatchewan Crossing to Jasper until mid afternoon Friday.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind effect is extremely variable

Problems

Deep Persistent Slabs

Large ground release at Parker Ridge today.

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

Elevations: Alpine, Treeline.

Likelihood

Very Likely

Expected Size

2 - 4

Wind Slabs

Steep cross loaded or lee slopes ware likely slab trigger zones. In the alpine the snowpack depth is highly variable. At tree line travel is good and the snowpack supportive.

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

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 3

Valid until: Dec 2nd, 2011 4:00PM