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Avalanche Forecast

Apr 21st, 2012–Apr 22nd, 2012
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
3: Considerable
The avalanche danger rating below treeline will be considerable
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
3: Considerable
The avalanche danger rating below treeline will be considerable
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

Regions: Jasper.

A rising freezing level up to 3000 meters is expected for the South Rockies. Should this system enter the Jasper forecast area, watch for cornice failures in the alpine as well as loose wet avalanches below treeline.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Sunday

Avalanche Problems

Loose Wet

Warm temperatures and additional load from snow or perhaps rain at lower elevations will make avalanches go to ground.

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

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Wind Slabs

Additional snow on Sunday and rising freezing levels into the high alpine may produce avalanches from this layer.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Deep Persistent Slabs

Warm temperatures and large loads such as from cornice failures may produce avalanches that step down into the weak layers deep in the snowpack.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4