Avalanche Forecast

Issued: Nov 16th, 2011 4:00PM

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

Snow Safety, Parks Canada

Banff Yoho Kootenay.

Easily triggered avalanches up to size 1.5 have been observed in the last 48 hrs by backcountry skiers and ski hill avalanche workers. Open steep terrain with wind loading should be carefully evaluated or avoided. JBW

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Problems

Persistent Slabs

Steep open slopes at and above treeline have a soft to hard wind slab that is sensitive to human triggering and is failing near the ground on the basal depth hoar. In some places, this layer is failing on a surface hoar layer and then stepping down.

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

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

1 - 3

Valid until: Nov 17th, 2011 4:00PM