Avalanche Forecast

Issued: Dec 3rd, 2014 4:00PM

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

a.l. horton, Parks Canada

Jasper.

Summary

Weather Forecast

Gradual warming trend will continue with light winds and no precipitation for Thursday.Â Light precipitation and cloudy skies are forecast starting on Friday and into the weekend.

Snowpack Summary

Significant settlement in past few days. The main weakness is a sandwich of crusts and facets at the mid to lower snowpack.

Avalanche Summary

Over the past few days, several 1.5 to 2 thin slab avalanches on southerly aspects around treeline have been reported in the Maligne area.

Confidence

Due to the number of field observations on Thursday

Problems

Persistent Slabs

Storm snow has evolved into a persistent slab mainly around treeline.

Assess start zones carefully and use safe travel techniques.Carefully evaluate and use caution around thin snowpack areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Loose Dry

Dry loose snow avalanches are still possible in steep rocky and unsupported terrain. Solar triggering is likely with forecasted sunny skies.

Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.The volume of sluffing could knock you over; choose your climb carefully and belay when exposed.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Dec 4th, 2014 4:00PM