Avalanche Forecast

Issued: Dec 3rd, 2015 4:00PM

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

a.l. horton, Parks Canada

Jasper.

Continued snow through the weekend will be building storm slabs on top of a touchy surface hoar layer. Be very cautious as slides could occur even on low angle terrain.

Summary

Weather Forecast

Continued snow expected through the weekend with up to 30 cm accumulated by Sunday night.Â Mod SW winds with warm valley bottom temps cooling with elevation.Â

Snowpack Summary

A well settled snowpack exists at treeline and below. In the alpine, SW winds have stripped most fetch areas and built pockets of hard slab on lee slopes. The distribution of the surface hoar that formed during last week's inversion is widespread but is most likely best preserved on sheltered north aspect slopes.Â

Avalanche Summary

No new activity reported or observed on Thursday. No avalanche patrol conducted.

Confidence

Forecast snowfall amounts are uncertain on Friday

Problems

Storm Slabs

Up to 20 cm of snow expected through the night and Friday with mod SW winds will build storm slabs on top of a well developed surface hoar layer. Sheltered northerly aspects are likely areas where this surface hoar is most prevalent.

Avoid open slopes and convex rolls at and below treeline where buried surface hoar may be preserved.Use caution in lee areas in the alpine and treeline. Recent storm snow has formed touchy slabs.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Likely - Very Likely

Expected Size

1 - 2

Valid until: Dec 4th, 2015 4:00PM