Avalanche Forecast

Issued: Dec 4th, 2011 4:38PM

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

Snow Safety, Parks Canada

Banff Yoho Kootenay.

With another skier remote size 3 today and more field tests at treeline, we have little confidence in the snowpack stability, keep to conservative routes on small features and carefully evaluate consequences if you were to trigger an avalanche. LP

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable

Problems

Persistent Slabs

Another skier remote near Lake Louise (photo on the MCR) size 3. They were returning for their 2nd run when they triggered the slope they just skied from the ridge above. They remote triggered a windslab, which triggered the deeper slab.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

2 - 3

Wind Slabs

It's remains possible to trigger this layer, especially in the alpine. Be especially cautious with any windloaded features.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

2 - 3

Valid until: Dec 5th, 2011 4:00PM