Avalanche Forecast

Issued: Nov 28th, 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.

rupert wedgwood, Parks Canada

Jasper.

Good skiing in sheltered low angle locations

Summary

Weather Forecast

A westerly flow over the park withÂ minimal snow expected over the next 72 hours. On Friday an approaching low may bring snow for the weekend. Freezing levels will remain at valley bottom elevations with alpine temperatures reaching highs of -9 and lows of -15. Winds will remain light and westerly.

Snowpack Summary

30cm of storm snow has formed soft slabs in lee features on aÂ buried crust.Â Down 40-60cm the crust can be found between 2100-2600m on all aspects and will be a layer of concern as the snow load increases. In many areas this storm snow remains unaffected by the wind and offers good skiing. The status quo will remain for a few days longer.

Avalanche Summary

In the Parker area 2 new avalanches fromÂ wind effected treeline and the alpine terrain. These wind slab avalanches were size 2 and 1.5 from steeperÂ terrain. The smallerÂ event 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. Loose snow point releases seen from rocks.

Confidence

Due to the number and quality of field observations

Problems

Wind Slabs

Be cautious of wind slab in immediate lee and cross-loaded terrain in the alpine.

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: Nov 29th, 2016 4:00PM