Avalanche Forecast

Issued: Nov 29th, 2011 4:00PM

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

Rupert Wedgwood, Parks Canada

Jasper.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Due to the number of field observations on Friday

Problems

Deep Persistent Slabs

Avoid steep cross winded terrain such as old moraines or shallow gullies. Additional loading can trigger large avalanches where the snow has been stiffened by the wind. No new avalanches seen from this layer in the Bald Hills today.

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

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

2 - 4

Storm Slabs

Steep cross or lee winded slopes with steep convex roles are likely slab trigger zones. In the alpine the snowpack depth is highly variable. At treeline travel is good and the snowpack supportive.

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

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

2 - 3

Valid until: Nov 30th, 2011 4:00PM