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Archived

Avalanche Forecast

Jan 11th, 2015–Jan 12th, 2015
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: Kananaskis.

Watch for thin areas where you may be able to trigger the basal weakness. 

Confidence

Good

Weather Forecast

No new snow over the next 24hrs and winds will remain generally light out of the NW.  Temperatures will once again be seasonal.

Avalanche Summary

No new avalanche activity.

Snowpack Summary

Very little change over the past 24hrs.  Widespread wind affect in alpine terrain. At treeline, pockets of windslabs and persistent slabs overlying the Dec13th crust down 30-50cm. Moderate sheers persist at this interface on a layer of facets above the crust. Crust seems to disappear above 2300m. 1106CR down 120-140cm and is continuing to break down.

Avalanche Problems

Persistent Slabs

Watch for unsupported features and wind affected areas at treeline.
Avoid cross loaded slopes at or above treeline.>Dig down to find and test weak layers before committing to a line.>Avoid unsupported slopes.>

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible - Likely

Expected Size: 2 - 4

Wind Slabs

Most alpine areas are wind affected from the recent moderate NW winds.
Be careful with wind loaded pockets while approaching and climbing ice routes.>Watch for areas of hard wind slab in steep alpine features.>Be aware of the potential for wide propagations due to the presence of hard windslabs.>

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

Elevations: Alpine.

Likelihood: Possible - Likely

Expected Size: 1 - 4

Deep Persistent Slabs

Thin weak areas are a place where you may trigger this weakness.
Avoid convexities or areas with a thin or variable snowpack.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 5