Avalanche Forecast

Issued: Feb 6th, 2012 4:00PM

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

aaron beardmore, Parks Canada

Banff Yoho Kootenay.

Surface hoar is forming, take note. Also, sun-crust is forming on steep south aspects. Over the next few days, temperatures will return to seasonal and winds will remain light providing minimal input causing little change in the danger rating.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Problems

Wind Slabs

Windslabs exist up to a metre thick on lee slopes in the high in the alpine. Solar aspects have greater likelihood of natural activity in the PM.

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

Elevations: Alpine.

Likelihood

Possible - Likely

Expected Size

2 - 3

Cornices

Cornices are weakening in the sun and collapses can entrain wet snow and can be a big enough trigger to initiate a slab avalanche.

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

2 - 3

Valid until: Feb 7th, 2012 4:00PM