Avalanche Forecast

Issued: Jan 9th, 2012 5:02PM

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

Landon Shepherd, Parks Canada

Jasper.

Strong winds continue to build hard surface slabs below ridge crests and behind tree fences.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Due to the number of field observations

Problems

Wind Slabs

Strong southwesterly winds have pushed the recent storm snow into hard windslabs.

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Deep Persistent Slabs

Large avalanches could occur where smaller avalanches or cornice failures trigger a collapse in deep basal facets.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Unlikely - Possible

Expected Size

2 - 4

Valid until: Jan 10th, 2012 4:00PM