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Archived

Avalanche Forecast

Feb 15th, 2012–Feb 16th, 2012
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
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Northwest Inland.

Confidence

Fair - Forecast snowfall amounts are uncertain on Thursday

Weather Forecast

Moderate snowfall should start late Wednesday evening and continue until Thursday afternoon. Snowfall amounts are expected to be 10-15cm. Trace amounts are expected on Friday and mostly clear skies are forecast for Saturday. Winds should be moderate from the southwest switching to light and northerly by Saturday. Freezing levels should be at about 700m for the forecast period.

Avalanche Summary

No new avalanches have been reported.

Snowpack Summary

The snowpack is generally well settled and strong. Successive melt-freeze cycles have produced crusts on all aspects at lower elevations as well as on south-facing slopes higher up. Shaded aspects in the alpine are a mix of settled powder and old windslabs. Weak surface hoar crystals sit on the crusts to treeline and in sheltered areas in the alpine and is now covered by a dusting of recently fallen snow. This snow pack structure will be the big thing to watch as the overlying slab develops.

Avalanche Problems

Wind Slabs

Newly formed wind slabs will be easy to trigger, especially where they exist in combination with buried surface hoar and/or crusts.

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 3