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Archived

Avalanche Forecast

Dec 30th, 2014–Dec 31st, 2014
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Jasper.

Ice climbers, start your New Year's resolution early by bundling up and getting out on the ice. Keep your fingers and toes warm.

Weather Forecast

The weather forecast is calling for increasing clouds through Thursday with snow beginning on Thursday afternoon and continuing into the weekend. Temperatures will be gradually warming (comparatively speaking) to around -10 for the daytime highs on the weekend. Winds will shift to a Westerly direction overnight.

Snowpack Summary

North winds are forming new wind slabs by reverse loading S-SE aspects near ridge crests and cross-loaded gully features. A Shallow low density upper snowpack sits on a strong, supportive mid-pack which is bridging a weaker facet base.

Avalanche Summary

No new avalanche activity reported in the forecast area.

Confidence

Intensity of incoming weather systems is uncertain on Thursday

Avalanche Problems

Wind Slabs

Northerly winds reverse loading cross-loaded gulley features and South sides of ridge crests.
Avoid travelling in areas that have been reverse loaded by winds.Be cautious as you transition into wind affected terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Deep Persistent Slabs

This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse could trigger this deep persistent weakness. The cold temperatures will be having a facetting effect on shallow locations.
Carefully evaluate and use caution around thin snowpack areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3