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Archived

Avalanche Forecast

Dec 2nd, 2011–Dec 3rd, 2011
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
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
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: Glacier.

Large areas of Glacier National Park are CLOSED for avalanche control using EXPLOSIVES. Daily or annual winter permits are required to access winter restricted areas. Access info at Rogers Pass Discovery Centre.

Avalanche Problems

Wind Slabs

Steady moderate to strong SW wind over 72 hours continues to load leeward terrain. A size 3 skier accidental yesterday indicates the possibility of large skier triggered avalanches. This involvement occurred in a SE facing alpine gully.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Storm Slabs

80 cm of storm snow has slabbed up, and in many places has not yet released. Use conservative route selection in avalanche terrain that has not avalanched in the last few days.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 1 - 2