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Archived

Avalanche Forecast

Jan 13th, 2014–Jan 14th, 2014
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Kananaskis.

A strong westerly flow over the next 48 hours will bring above normal temperatures and the combination will further promote the formation of windslabs which are becoming more reactive to light loads such as a skier.

Confidence

Fair

Weather Forecast

Snowfall is expected to end by early Tuesday with a High pressure system pushing in from the west.  A strong chinook flow will bring max temps well above normal for most of the forecast area with strong winds continuing over the next 48 hours - wind slab formation will continue.

Avalanche Summary

No new observed due to obscured sky conditions.

Snowpack Summary

Obscured sky conditions limited observations regarding wind transport along ridgetops. Perfect combo of new snow, wind and mild temps creating new windslabs with variable thickness depending upon location and amount of snow in fetch zones.

Avalanche Problems

Wind Slabs

Widespread skier triggerable windslabs exist in the alpine and treeline elevation zones.  These slabs may be sensitive to the weight of a skier so use caution when entering areas where you suspect this condition exists. Utilize safe travel techniques
Enter your line well below ridge crests to avoid wind loaded pillows.>Avoid lee and cross-loaded terrain near ridge crests.>Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 2 - 5

Persistent Slabs

This is a longstanding problem - be aware that any avalanche may step down into the deeper basal weaknesses and involve the entire winters snowpack as has already occurred in some areas.
Be aware of the potential for full depth avalanches due to deeply buried weak layers.>Be aware of thin areas that may propogate to deeper instabilites.>Avoid exposure to overhead avalanche terrain, large avalanches may reach the end of run out zones.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 2 - 6