Avalanche Forecast

Issued: Apr 13th, 2012 4:18PM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is considerable. Known problems include Storm Slabs, Loose Wet and Deep Persistent Slabs.

Rupert Wedgwood, Parks Canada

Jasper.

Several size two wet avalanches were observed near the Columbia Icefields today at lower elevations. Avoid traveling below corniced terrain.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Saturday

Problems

Storm Slabs

25cm of new snow in the past 24hrs is forming a soft slab up to 50cm thick in wind exposed areas. Winds are expected to switch to the North producing a wider spread slab condition.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

2 - 3

Loose Wet

Several wet avalanches up to size 2 were observed in the Columbia Icefields 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

These deeper layers can wake up unexpectedly. The on going storm snow may overload deep layer in some locations.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

2 - 4

Valid until: Apr 14th, 2012 4:00PM