Avalanche Forecast

Issued: Feb 12th, 2013 8:07AM

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

Parks Canada ali haeri, Parks Canada

Incoming weather is increasing the avalanche hazard, be more conservative in your terrain selection.

Summary

Weather Forecast

Westerly flow is bringing light to moderate amounts of precipitation with associated west winds into Wednesday morning. Passage of front this evening will bring most of precipitation. A ridge builds on Wednesday with cooler temperatures and drier conditions.

Snowpack Summary

Newly buried sun crust on solar aspects and surface hoar under 5cm of new snow. 10-30 cm of ski penetration over a well settled mid pack. Profiles on east aspect of Bruins Ridge showed moderate resistant planar results down 23cm. On the west aspect, hard broken test results down 27 and 37cm.

Avalanche Summary

From yesterday morning a natural size 3 slab avalanche off of Mt Leda in the Asulkan valley. 2600m, NE aspect wind loaded ridgetop release, possibly cornice triggered, 40-60cm slab avalanche running ~700m.1 size 2 natural slab east of the Rogers Pass summit in the highway corridor.

Confidence

Intensity of incoming weather systems is uncertain

Problems

Wind Slabs

An icon showing Wind Slabs
Winds have remained in the moderate range and are forecast to increase with this incoming storm.
Caution in lee and cross-loaded terrain near ridge crests.Avoid freshly wind loaded features.

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

Elevations: Alpine.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Feb 13th, 2013 8:00AM