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Archived

Avalanche Forecast

Dec 26th, 2012–Dec 27th, 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: Purcells.

Weather Forecast

Thursday: A weak ridge of high pressure will give generally dry conditions, winds light from the west and alpine temperatures near -12.Friday: Isolated flurries and overcast skies, winds light from the west and northwest. Alpine temperatures near -11.Saturday: Another weak ridge of high pressure will give generally dry conditions, winds light from the northwest.

Avalanche Summary

No recent significant avalanche activity to report.

Snowpack Summary

A wind event from last week formed relatively deep wind slabs in the alpine. New snow combined with wind has formed fresh wind slabs on the surface. The mid-pack is reported to be settling well. Recent reports indicate the late November surface hoar (near the middle of the snowpack) and  early November crust (near the base of the snowpack) have been inactive as of late. It's important to note that professionals are still cautious about these lingering persistent slab problems, but the likelihood of triggering is low. Be wary of steep complex terrain with a shallow snowpack, where triggering a persistent weakness is more likely.

Avalanche Problems

Wind Slabs

Watch for newly formed and buried windslabs in the lee of terrain features. lee
Be cautious as you transition into wind affected terrain.>Stay well to the windward side of corniced ridges.>Extra caution needed around cornices with current conditions.>

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 3