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Archived

Avalanche Forecast

Nov 28th, 2016–Nov 29th, 2016
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Jasper.

Good skiing in sheltered low angle locations

Weather Forecast

A westerly flow over the park with  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 a  buried crust.  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 from  wind effected treeline and the alpine terrain. These wind slab avalanches were size 2 and 1.5 from steeper  terrain. The smaller  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

Avalanche 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