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Archived

Avalanche Forecast

Feb 10th, 2014–Feb 11th, 2014
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Northwest Inland.

Confidence

Fair - Timing, track, or intensity of incoming weather system is uncertain on Tuesday

Weather Forecast

Tuesday: Light snowfall throughout the day becoming moderate through the evening / Strong southwest winds / Freezing level at surfaceWednesday: Steady snowfall in the early morning becoming light / Strong southwest winds / Freezing level at surfaceThursday: Light snowfall / Strong southwest winds / Freezing level at 400m

Avalanche Summary

No new avalanches were reported. I would expect touchy storm slab conditions with forecast weather over the next few days.

Snowpack Summary

A developing storm slab overlies a medley of old surfaces which include: weak surface facets, surface hoar, thin wind slabs, a scoured crust, or any combination thereof. Strong winds are likely shifting the new snow into stiff wind slabs in exposed terrain. As the new slab develops and gains cohesion, I would expect it to have a poor bond with any of these old surfaces.The mid snowpack is generally strong and well-settled. Basal facets and depth hoar are likely to exist in some areas, but triggering is only a concern in thin and variable snowpack areas with large triggers.

Avalanche Problems

Storm Slabs

A developing storm slab sits over a variety of potentially weak surfaces. Watch for triggering in wind-exposed terrain.
The new snow will require several days to settle and stabilize.>Be cautious as you transition into wind affected terrain.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2