Avalanche Forecast

Issued: Nov 17th, 2021 3:00PM

The alpine rating is considerable, the treeline rating is moderate, and the below treeline rating is low. Known problems include Wind Slabs.

Avalanche Canada Mikey, Avalanche Canada

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.

Summary

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.

Problems

Wind Slabs

An icon showing Wind Slabs

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

1.5 - 2.5

Valid until: Nov 18th, 2021 3:00PM