Avalanche Forecast

Issued: Nov 28th, 2015 7:36AM

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

pgoddard, Avalanche Canada

Northwest Inland.

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Summary

Confidence

Poor - Due to the number of field observations

Weather Forecast

High pressure, dry conditions and warm alpine temperatures are expected to continue until Monday. Valley cloud is likely on Sunday. Light snow is expected to begin late Monday (around 5 cm overnight), with strong southerly winds. Light snow continues on Tuesday. Confidence in the intensity and timing of this system is low.For more details check out avalanche.ca/weather

Avalanche Summary

Naturally triggered loose wet avalanches were observed in sunny rock outcrops this week. Glide slabs have also been active on a variety of aspects.

Snowpack Summary

So far, we only have limited information from the field. Initial reports suggest that there is little snow below treeline. Recent outflow winds have created variable wind slabs and crusts at higher elevations. In some places, wind slabs may overlie a crust, surface hoar or facets. A persistent weak layer exists at the base of the snowpack in the north of the region, however I am not sure how widespread this is.Unusually warm temperatures are weakening surface snow layers.

Problems

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.

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

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Loose Wet

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

Watch for signs of snowpack warming, like snowballing, sluff from cliffs or recent avalanches.>

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

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