Avalanche Forecast

Issued: Dec 14th, 2014 8:13AM

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

swerner, Avalanche Canada

Northwest Inland.

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Summary

Confidence

Poor - Due to the number of field observations

Weather Forecast

Mainly sunny and cool, with some cloud later Monday afternoon. A series of weak storm systems will push into the interior and bring light snowfall amounts. Freezing levels near 1000 m with ridgetop windsÂ moderate from the S-SE.

Avalanche Summary

There are no new avalanche reports from the region.

Snowpack Summary

Around 10-20cm of recent snow sits on a newly formed rain crust. At alpine elevations, recent storm slabs and wind slabs may still be sensitive to triggers like the weight of a person. Deeper in the snowpack, weaknesses such as loose sugary facets and crusts exist in some locations. A recent snowpack test from the Hankin-Evelyn area produced easy/moderate pop results down 30 cm on one of three buried crusts.

Problems

Wind Slabs

Wind slabs may be found behind terrain breaks like ridges and ribs. In certain areas, a slab could fail on a deeply buried weakness, creating a surprisingly large avalanche.

Avoid areas with a thin or variable snowpack.>Choose well supported terrain without convexities.>Use ridges or ribs to avoid wind loaded and cross loaded slopes.>

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 4

Valid until: Dec 15th, 2014 2:00PM