Avalanche Forecast

Issued: Feb 3rd, 2013 9:49AM

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

mpeter, Avalanche Canada

Sea To Sky.

Summary

Confidence

Good

Weather Forecast

Monday:Expect cloudy skies with a chance of flurries. Winds should be light and southerly and alpine temperatures should reach -5.Tuesday & Wednesday: Expect precip to build as waves of unsettled weather enter the region. 30-50cm are possible. Southerly winds continue, with occasional gusts and temperatures should reach -5 each afternoon.

Avalanche Summary

Isolated loose wet sluffs have been reported.

Snowpack Summary

Isolated, stubborn wind slabs can be found behind ridges, ribs and on lee slopes (NW-NE). Sun crusts can be found on South and West facing terrain. The upper snowpack is showing continued settlement and gaining strength. Down 20-50 cm sits a persistent interface comprising of crusts, facets and surface hoar crystals. Recently, this layer has been reactive in very isolated, sheltered areas at treeline and below where surface hoar remains preserved. The mid pack is generally well settled with the average snowpack depth at treeline around 180 cm.

Problems

Wind Slabs

Isolated windslabs may still lurk in lee and cross loaded terrain

Assess start zones carefully and use safe travel techniques.>

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 4

Valid until: Feb 4th, 2013 2:00PM