Avalanche Forecast

Issued: Mar 11th, 2013 10:13AM

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

triley, Avalanche Canada

Northwest Inland.

Summary

Confidence

Fair - Forecast snowfall amounts are uncertain on Tuesday

Weather Forecast

Overnight and Tuesday: Light snow combined with light Southerly winds overnight becoming strong Southerly during the day. Expect 5-8 cms of new snow with freezing level at valley bottom.Wednesday: Unsettled weather bringing cloud and very light precipitation with moderate Westerly winds.Thursday: Moderate precipitation and moderate Southerly winds as the next pulse of moisture moves in from the coast.

Avalanche Summary

One report of a skier accidental size 1.5 from an East aspect in Boulder creek that released in some fresh wind slab that was about 20 cms deep and ran about 150 metres.

Snowpack Summary

Thin new wind slabs are developing due to West-Northwest winds. These wind slabs may be sitting above recently developed surface hoar and surface facets in area where they were not stripped by the wind. Strong solar radiation may have developed sun crusts on solar aspects up to about 2000 metres. The mid pack is reported to be well settled without any layers of concern. Depth hoar and facets are reported near the ground in areas with a thin snow pack.

Problems

Wind Slabs

Thin new wind slabs have developed due to West-Northwest winds. Expect wind slabs to continue to build, and that they may become reverse loaded as the wind direction shifts to the South.

Avoid freshly wind loaded features.>Be cautious as you transition into wind affected terrain.>Avoid travelling in areas that have been reverse loaded by winds.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 4

Valid until: Mar 12th, 2013 2:00PM