Avalanche Forecast

Issued: Nov 29th, 2016 4:00PM

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

garth lemke, Parks Canada

Jasper.

Good quality skiing where not wind affected. Winds have strangely remained light leaving the powder intact.

Summary

Weather Forecast

The next few days winds will remain light westerly, -5 to -15 degrees, and no new significant snow. Friday may bring 5-10cm.

Snowpack Summary

The weekends 30cm of storm snow has formed soft slabs in lee features on a buried crust. The crust can be 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. The status quo will remain for a few days longer.

Avalanche Summary

Several size 1-1.5 loose snow avalanches from 2100-2400m on solar aspects were noted on Tuesday through the Icefields. Monday, a size 2 and 1.5 windslab was noted from steeper terrain. The 1.5 was triggered by a group of skiers from 25m away on a west facing slope at 2300m. The other from a NE moraine band at 2100m.

Confidence

Problems

Wind Slabs

Be cautious of wind slab in immediate lee and cross-loaded terrain in the alpine. Watch for when it changes from soft to firmer wind affected snow.

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

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 3

Valid until: Nov 30th, 2016 4:00PM