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Archived

Avalanche Forecast

Jan 15th, 2015–Jan 16th, 2015
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: Banff Yoho Kootenay.

Overall the snow pack is weak and facetted and does not inspire a lot of confidence.

Weather Forecast

Cloudy with isolated flurries through to Friday. Westerly flow with moderate to strong winds at ridgetop. Freezing levels at valley bottom.

Snowpack Summary

The snowpack in this area is generally weak and facetted throughout. The Dec 18 interface is evident down 30-40 cm and is still a concern in deeper snowpack areas, but in shallower areas is facetting out. Some hard wind slabs exist in immediate lees of alpine terrain.

Avalanche Summary

No natural avalanche activity observed in past 48 hrs.

Confidence

Avalanche Problems

Persistent Slabs

In shallower snowpack areas this layer is facetting out. In deeper areas this layer remains more of a concern.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Deep Persistent Slabs

In shallower snowpack areas (most of the region) the weak base of the snowpack persists and can be triggered in steep, rocky terrain features. Patience is a virtue with this problem, as bigger terrain may not be available until later this winter.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3