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Avalanche Forecast

Feb 16th, 2013–Feb 17th, 2013
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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: South Rockies.

Snow amounts are a little uncertain for Sunday. If more than 10 cm comes through with some wind, consider alpine and treeline danger to be CONSIDERABLE.

Confidence

Fair - Intensity of incoming weather is uncertain on Sunday

Weather Forecast

Synopsis: Relatively benign weather is anticipated through the forecast period.Sunday: Light snowfall, 2-4 cm. Winds light northwesterly. Treeline temperatures around -10C.Monday: Flurries. Winds light southwesterly. Treeline temperatures around -8C.Tuesday: Dry. Cloudy. Calm. Freezing level around 1000 m.

Avalanche Summary

No new avalanches have been reported recently.

Snowpack Summary

A skiff of snow overlies old wind slabs on higher north and east facing terrain and sun crusts on solar aspects. Wind slabs are extensive in exposed areas and cornices are reported to be well developed. A surface hoar/facet/sun crust layer from mid February (12th) may be buried in the top 20 cm or so, where it hasn't been blown away by the wind and is likely making some of the wind slabs more touchy. Mid and lower snowpack layers are generally well settled and stable.

Avalanche Problems

Wind Slabs

Fresh wind slabs overly recent weak surfaces in exposed lee areas.
Watch freshly wind loaded features.>Use ridges or ribs to avoid pockets of wind loaded snow.>Watch for whumpfing, hollow sounds, shooting cracks or recent avalanches.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 4