Avalanche Forecast

Issued: Nov 28th, 2015 7:51AM

The alpine rating is below threshold, the treeline rating is below threshold, and the below treeline rating is below threshold. Known problems include Loose Wet and Wind Slabs.

pgoddard, Avalanche Canada

South Coast.

Unusually warm alpine temperatures may drive danger up.Thanks to everyone who has been submitting to the Mountain Information Network. Join the movement!

Summary

Confidence

Fair - Due to the number of field observations

Weather Forecast

High pressure, dry conditions and very warm alpine temperatures are expected to continue until Monday. Light snow is expected to begin late Monday and continue on Tuesday. At this stage, only a few cm are expected. Confidence in the intensity and timing of this system is low.For more details check out avalanche.ca/weather

Avalanche Summary

No recent avalanches have been reported.

Snowpack Summary

There is anywhere from 30-150 cm on the ground. Recent northerly outflow winds have scoured upwind slopes back to a firm crust, and created wind slabs on lee aspects. The snowpack is highly variable across different aspects and elevations.Wind slabs could be triggered by the weight of a person, especially where they overlie surface hoar, crusts or facets. The other big story is unusual warming at alpine elevations, which may weaken surface layers, or even wake up deeper snowpack weaknesses. Id take a cautious approach to big/ exposed terrain until winter temperatures return to normal.

Problems

Loose Wet

Unusually warm alpine temperatures may weaken surface snow and lead to loose wet avalanches.

Watch for clues that of snowpack warming, like sluffing off cliffs, snow balling and natural avalanche activity.>

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 3

Wind Slabs

Wind slabs may be lurking near, or well below, ridge crests. Conditions are highly variable, so be alert to hollow, drummy sounds and changes in the feel of the snow as you travel.

Watch for whumpfing, hollow sounds, shooting cracks or recent avalanches.>Be cautious as you transition into wind affected terrain.>

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 3

Valid until: Nov 29th, 2015 2:00PM