Avalanche Forecast
Nov 17th, 2011–Nov 18th, 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.
The Winter Permit System will be in effect starting tomorrow, Friday Nov. 18, 2011. Daily or annual permit are required to access winter restricted areas.
Avalanche Problems
Persistent Slabs
The Nov. 7 surface hoar layer is now burred by 80-100cm of snow. This layer is becoming slightly less reactive, but is still capable of propagating widely, especially where winds have created a firm slab.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible - Likely
Expected Size: 2 - 3
Loose Dry
Wind slabs from last week's storm were buried last night by 20cm of snow with light winds. There is considerable snow available for wind loading, especially at higher elevations.
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Possible
Expected Size: 1 - 2