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Avalanche Forecast

Dec 29th, 2011–Dec 30th, 2011
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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

Regions: Jasper.

Snow will continue on Friday. Expect slab conditions on lee aspects from moderate southwest winds.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Friday

Avalanche Problems

Storm Slabs

Up to 40 cm of storm snow has fallen since Tuesday. This snow is developing slabs that will become more touchy as wind and settlement occurs.

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 3

Deep Persistent Slabs

Heavy loads (large explosives) were able to trigger this layer proving the hidden danger of this weakness. Full path avalanches are possible. Likely triggers will be from shallow areas.

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

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4