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Archived

Avalanche Forecast

Feb 17th, 2021–Feb 18th, 2021
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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Kananaskis.

Thursday will see the winds slowly begin to increase into the moderate range out of the west. Watch for windslabs in the upper snowpack to slowly become more reactive to a skiers weight. 

Confidence

High -

Weather Forecast

Not much of a change on thursday except we can expect to see the winds increase slightly out of the west. Temperatures will be around -10C under a ski that is mainly a mix of sun and cloud.  

Avalanche Summary

No new avalanches were observed.

Snowpack Summary

The alpine has widespread wind slabs in the upper 40cm that are still providing good skiing as long as they are not too dense. Take the time to investigate these wind slabs so as to not be surprised in the density change. Cracking around your skis is a good indicator of this density change. The Jan 29 interface is down about 50-60cm and is producing a shear.

Terrain and Travel

  • Pay attention to isolated alpine features as well as cross-loaded features at treeline.
  • Carefully evaluate steep lines for wind slabs.
  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.

Avalanche Problems

Wind Slabs

Watch for windslabs around ridgelines and in steeper unsupported features.   

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1.5 - 2.5