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Archived

Avalanche Forecast

Jan 22nd, 2017–Jan 23rd, 2017
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.

Do not let the clear skies trick you into skiing big slopes as the snowpack is weak.

Confidence

Moderate -

Weather Forecast

The upcoming week is forecasting dry conditions with light southerly winds and alpine temperatures around -10c

Avalanche Summary

One size 2.5 slab avalanche probably cornice triggered just below ridgeline East face of Snowpeak (2500m)

Snowpack Summary

Mostly a weak snowpack.  The upper third of the snowpack is comprised of laminated windslabs overlying a weak midpack and basal facets..  BTL, the facets are even more prominent through most of the snowpack making travel even more challenging. 

Avalanche Problems

Persistent Slabs

If this layers if triggered, there is a likelihood of entraining the entire snowpack with it
Avoid unsupported slopes.Avoid cross loaded features.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Deep Persistent Slabs

The big concern is that if anything gets triggered within the snowpack, then the entire snowpack would fail on the basal facets.
Be aware of thin areas that may propogate to deeper instabilites.If triggered the wind slabs may step down to deeper layers resulting in large avalanches.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3