Avalanche Forecast

Issued: Nov 26th, 2014 4:00PM

The alpine rating is considerable, the treeline rating is moderate, and the below treeline rating is below threshold. Known problems include Loose Dry.

mike eder, Parks Canada

Jasper.

The first BIG snowfall of the season heralding in change.

Summary

Weather Forecast

A low pressure frontal is moving over the Rockies Wednesday evening with expected snowfall of up to 50cm over the next 36hrs. Alpine winds will be moderate to strong from the south and west.

Snowpack Summary

Variable snowpack conditions in the alpine with up to 40cm in wind loaded areas on N - NE aspects. One or more rain crustÂ close to the ground up to 2,500m with weak faceted snow above and below. Recent storm snow is being transported near ridge tops. Early season conditions at all elevations.Â

Avalanche Summary

Loose to size 2 in the alpine. Isolated soft slabs at upper elevations can be expected. No new field observations

Confidence

Due to the number of field observations on Wednesday

Problems

Loose Dry

Heavy accumulations will heighten the avalanche danger in the alpine and gulley features at lower elevations. Soft storm slab development with the november rain crust as a failure plane on wind loaded terrain. Loose snow sluffing from steep terrain.

Be cautious of sluffing in steep terrain.Early season hazards such as rocks, trees and stumps are still visible.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Nov 27th, 2014 4:00PM