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Archived

Avalanche Forecast

Dec 18th, 2019–Dec 19th, 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
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
4: High
The avalanche danger rating in the alpine will be high
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.

Widespread wind slabs in the alpine. Evaluate alpine terrain carefully as hard wind slabs can propagate into avalanches.

Confidence

Moderate -

Weather Forecast

Another windy day forecast for Thursday with strong westerlies. Temperature in the alpine will hover around -10c along with a few flurries starting later in the day. Weather models are indicating upwards of 30+cm of snow for Friday and Saturday.

Avalanche Summary

No new avalanches observed.

Snowpack Summary

The valley bottom is still challenging travel due to the minimal amounts of snow. At 2200m, there is about 100cm of snow at the most, of which the bottom 60cm is comprised of facets. . Somewhere around 2350m, the snowpack increases a bit and has a supportive midpack. This midpack was mostly formed by the numerous winds slabs that have bonded over the last few weeks. The wind has been blowing strong from the West for three days, depositing a solid wind slab on the surface in most of the alpine. Please watch the bulletin closely over the next few days as the forecast snow on Friday and Saturday will most likely increase the avalanche danger to High.

Avalanche Problems

Wind Slabs

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3