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Archived

Avalanche Forecast

Feb 3rd, 2014–Feb 4th, 2014
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Northwest Coastal.

Confidence

Good

Weather Forecast

Tonight and Tuesday: Cold and clear conditions will prevail over the Northwest region. Winds are forecasted to be strong from the NE and alpine temperatures to be around -18 C.Wednesday: A weak upper trough might bring a trace of precipitation. Moderate winds from the E are forecasted with alpine temperatures warming up slightly to around -13 C.Thursday: A similar pattern should persist with lighter winds from the SE with clear skies.

Avalanche Summary

There was report of small loose dry avalanches in very steep terrain and of a skier triggered slab avalanche size 1 in a thin windslab.

Snowpack Summary

5-10 cm of dry snow has been redistributed by strong winds from the NE-SE winds creating pockets of relatively thin windslabs on immediate lee features in the alpine and at treeline. These windslabs are sitting on weak surfaces like a crust or on the late January surface hoar layer. It has been reported that they are reactive to skier traffic. A well settled mid and lower snowpack is resting on basal facets, which is a concern especially in thin snowpack areas at higher elevations. At the surface of the snowpack, there is widespread growth of surface hoar and surface facetting which should continue with the forecasted clear and cold temperatures.

Avalanche Problems

Wind Slabs

Light dry snow has created pockets of thin windslabs lee of strong winds that could still be possible to trigger under the load of a skier or a sledder. In sheltered areas, this snow is prone to sluffing in steep terrain.
Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2