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Archived

Avalanche Forecast

Jan 28th, 2019–Jan 29th, 2019
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: Kananaskis.

Good skiing with this recent snowfall.  Keep clear of thin areas.

Confidence

High -

Weather Forecast

Tuesday will be mostly sunny with temperatures starting at -20c and warming during the day to -6c. Winds will be light out of the NW. Wednesday is forecast to be cloudy with a chance of flurries and a high of -6c.

Avalanche Summary

One size 2 avalanche was observed on a NE aspect on Mt. Birdwood in the last 24hrs.One size 2 avalanche was observed on a E aspect on Snowpeak.

Snowpack Summary

10cm of low density snow fell last night and was being moved around a bit with the moderate NW winds today. Some soft wind slabs were observed in lee areas in the alpine. The warm temps from the weekend has densed up the top 10cm of the snowpack just below the storm snow. This layer was producing moderate compression tests down 23cm from the top. Besides some of the surface instabilities, a generally well settled upper snowpack sits on 50-60cm of basal facets that are more reactive in shallower areas. The predictability of where to find thin and thicker areas is very challenging. There is a strong likelihood to trigger an avalanche from a thin spot and it has the potential to go big.

Avalanche Problems

Deep Persistent Slabs

Respecting shallow areas can't be overstated right now. If this layer fails, it will almost certainly be from a shallow areas. Bouldery areas and sparse trees are examples of trouble spots.
Carefully evaluate and use caution around thin snowpack areas.Be aware of the potential for full depth avalanches due to weak layers at the base of the snowpack.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3

Wind Slabs

There are new slabs from the wind as well as buried slabs. In both cases, expect to find the in immediate lee areas.
Caution in lee and cross-loaded terrain near ridge crests.Be aware of thin areas that may propogate to deeper instabilites.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2.5