Avalanche Forecast

Issued: Feb 18th, 2012 10:05AM

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

Avalanche Canada jlammers, Avalanche Canada

Summary

Confidence

Good

Weather Forecast

Sunday: Trace amounts of snow with some clearing / light northwest winds / freezing level @ 900m Monday: trace amounts of snow / moderate westerly winds / freezing level @ 900m Tuesday: some clearing / strong northwest winds / freezing level @ 1100m

Avalanche Summary

No new avalanche activity has been reported.

Snowpack Summary

Light amounts of recently fallen snow (up to 30cm in the Coquihalla) sit over an assortment of old snow surfaces. These surfaces include melt-freeze crusts on all aspects below 1700m and on steep solar aspects higher up, old wind slabs and surface facets on northern aspects where colder temperatures have persisted. Sandwiched between the old surfaces and the more recent snow may be buried surface hoar. The surface hoar seems to be most prominent at treeline and below and is most likely to be found in the north and central parts of the region. At this point there isn't enough of an overlying slab to create reactivity on the surface hoar layer, but it is a layer to monitor as more snow accumulates. In general the mid and lower snowpack are strong and well settled.

Problems

Wind Slabs

An icon showing Wind Slabs
Moderate winds on Friday night created small wind slabs on lee slopes.

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

Elevations: Alpine.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Feb 19th, 2012 9:00AM