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Archived

Avalanche Forecast

Nov 17th, 2021–Nov 18th, 2021
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
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.

Quite varied conditions out there. Below tree line has barely enough snow to travel. Wind slabs have been observed at tree line and into the alpine.

Confidence

Moderate -

Weather Forecast

Thursday morning in the alpine will start off around -15c along with a mix of sun and cloud. Clouds and light flurries for the afternoon with daytime high of -10c. Winds will be moderate from the SW.

Avalanche Summary

Avalanche control was done on Wednesday on the Canmore Hill and the upper bowls produce a few size 2 slabs (wind slabs). 

Snowpack Summary

The forecasters did avalanche control on Wednesday and noticed a lot of wind effect in the alpine. Currently 50-70cm of snow is at treeline with a temperature crust related to recent rains 10-20cm off the ground. We don't have a firm grasp on how high this crust goes at this time due to limited field observations.  

Terrain and Travel

  • Be alert to conditions that change with elevation, aspect and exposure to wind.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.

Avalanche Problems

Wind Slabs

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1.5 - 2.5