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Archived

Avalanche Forecast

Apr 14th, 2012–Apr 15th, 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
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Wind slab avalanches in the alpine are a concern on both NE and SW aspects due to changing wind directions.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing or intensity of solar radiation is uncertain on Sunday

Avalanche Problems

Wind Slabs

Slab avalanches to size 2 were observed on north aspects below corniced ridge lines. On Saturday, winds shifted to the NE, reverse loading SW slopes which likely have a well developed sun crust.

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

Elevations: Alpine.

Likelihood: Likely - Very Likely

Expected Size: 2 - 3

Loose Wet

Widespread wet avalanche activity up to size 2 has been observed through out the forecast area. Rain saturated snow at lower elevations is failing at the ground. Pay close attention to freezing level elevations.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Likely

Expected Size: 1 - 2

Deep Persistent Slabs

Avalanches to size 2 have been observed on this layer on NE aspects initiated by small loose snow avalanches. These deeper layers can wake up unexpectedly on all aspects.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 4