Avalanche Forecast

Issued: Dec 13th, 2011 4:00PM

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

landon shepherd, Parks Canada

Jasper.

If new snowfall is in excess of 10cm, expected moderate winds will elevate the Alpine avalanche danger.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain

Problems

Deep Persistent Slabs

Expected warmer temperatures will reduce bridging strength of the midpack over the basal facets in shallower snowpack areas.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

2 - 3

Loose Dry

Windslabs will have a small additional load from flurries and gusty south winds.

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Valid until: Dec 14th, 2011 4:00PM