Avalanche Forecast

Issued: Feb 27th, 2012 8:13AM

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

catherine brown, Parks Canada

Glacier.

The sun will be out for the first time in a week today. Watch for loose solar triggered avalanches especially when the sun first hits the slope. Natural avalanche activity is subsiding, but skier-triggerable avalanches down a meter are still likely.

Summary

Problems

Persistent Slabs

Around a meter of cohesive slab overlies 2 significant weak layers. These layers are reactive and in skier-triggerable range. Wide propagations and remote triggering are likely. These layers are most sensitive at treeline and below.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

1 - 3

Wind Slabs

Look for dense, wind-deposited snow on lee slopes from southerly winds. Pockets of wind-loaded snow and areas of hard slab could catch you by surprise. These may be triggered by skiers and step down to the persistent weak layers below.

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

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

1 - 3

Valid until: Feb 28th, 2012 8:00AM