Avalanche Forecast

Issued: Nov 30th, 2016 4:00PM

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

garth lemke, Parks Canada

Jasper.

Winds have remained light leaving the powder mostly intact. Monitor Friday's winds and rapid snow transport where it has to potential to tip the scales overloading the weak facets around the buried crust.

Summary

Weather Forecast

Temperatures will range from -5 to -12 the next few days. Thursday's winds will remain light SW and no precipitation expected. Friday may bring 5-10cm and increasing moderate SW winds and more snow and winds on Saturday.

Snowpack Summary

Last weekends 30cm of storm snow has formed soft slabs in isolated lee features. It rests on a buried crust found 2100-2600m down 40-60cm on all aspects. It will be a layer of concern as the snow load increases. In many areas the storm snow remains unaffected by the wind and offers good skiing.

Avalanche Summary

Explosive control on Parkers slabs at 2100m NE aspect released only one size 2 and a few size 1's. A couple of natural size 2 slabs were noted in the alpine at 2500m on isolated steep rocky terrain features.

Confidence

Wind speed and direction is uncertain on Friday

Problems

Wind Slabs

Be cautious of wind slab conditions developing in lee and cross-loaded terrain in the alpine and treeline. When it changes from powder to firmer wind affected snow should be an indicator to increase your vigilance.

Use caution in lee areas in the alpine and treeline. Recent storm snow has formed wind slabs.Be careful with wind loaded pockets while approaching and climbing ice routes.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 3

Valid until: Dec 1st, 2016 4:00PM