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Archived

Avalanche Forecast

Mar 5th, 2014–Mar 6th, 2014
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
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

Regions: Jasper.

The avalanche danger will increase more rapidly if snow fall amounts exceed expectations.  Pay attention to local conditions.

Weather Forecast

New snow and rising temperatures are in the forecast.  A light southerly flow will bring 10 cm of new snow to the Columbia Icefield area and we may see greater amounts in specific locations. Temperatures are expected to remain below freezing at treeline and above but valley bottoms may see numbers as high as + 8 degrees.

Snowpack Summary

Mid pack remains supportive. About 20 cms of HST overlies old surface. No slab in storm snow. At low elevations a buried sun crust is present on south through sw aspects.

Avalanche Summary

No new avalanches

Confidence

Intensity of incoming weather systems is uncertain

Avalanche Problems

Loose Dry

Steep alpine faces are sluffing regularly as new snow accumulates.
Avoid travelling under cliffs that are exposed to sluffing from above.The volume of sluffing could knock you over; choose your climb carefully and belay when exposed.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2

Wind Slabs

This avalanche problem remains a concern and may become more sensitive to triggering as temperatures rise and penetrate into the snowpack.
Caution in lee and cross-loaded terrain near ridge crests.The recent snow may now be hiding windslabs that were easily visible before the snow fell.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 3