Avalanche Forecast

Issued: Dec 7th, 2013 8:24AM

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

deryl kelly, Parks Canada

Jasper.

Extremely cold temperatures persist. Monitor yourself and partners for frostbite and be well equipped for the cold.

Summary

Weather Forecast

Continued cold temperatures forecast through the weekend with a seasonal temperature trend and the possibility of light snowfall beginning mid week.

Snowpack Summary

Variable wind slab on lee features at all elevations. Extremely cold conditions creating surface facetting and surface hoar at all elevations. Variable snowpack depths.

Avalanche Summary

No patrol in forecast region in the last 5 days.

Confidence

Due to the number of field observations

Problems

Wind Slabs

Variable wind slabs exist throughout the landscape.

Be careful with wind loaded pockets. Be aware of wide variation in snowpack depthBe careful with wind loaded pockets while approaching and climbing ice routes.

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Persistent Slabs

Observations are very limited leading to uncertainty for the potential to trigger this layer.

Carefully evaluate big terrain features by digging and testing on adjacent, safe slopes.Cold temperatures have stabilized the snowpack, but watch out for frostbite.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Valid until: Dec 8th, 2013 8:24AM