Avalanche Forecast
Nov 18th, 2011–Nov 19th, 2011
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: Glacier.
The Winter Permit System is now in effect. Large areas of Glacier National Park are CLOSED for avalanche control using EXPLOSIVES. Daily or annual permits are required to access winter restricted areas. Access info at Rogers Pass Discovery Centre.
Avalanche Problems
Storm Slabs
25 cm of low density storm snow has been distributed by moderate to strong wind that has shifted from south to north. Small soft slab avalanches have been observed and are possible again today.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 2
Persistent Slabs
A surface hoar layer is buried up to 100 cm deep. It has become less sensitive to skier triggering but remains a concern.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible - Likely
Expected Size: 2 - 3