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Avalanche Forecast

Archived

Dec 27th, 2021–Dec 28th, 2021

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Kananaskis.

Cold...Brrrr... Any type of delay in the backcountry can be serious in this cold. Be prepared.  

Confidence

Moderate - Uncertainty is due to the limited number of field observations.

Weather Forecast

The cold is here for at least another day. Tuesday morning will start off with a temperature of -28c and suppose to warm up to -21c to -24c. Winds will be 25-35km/hr from the NW, along with light flurries.

Avalanche Summary

-33c on the Spray road today. The skies were clear so we had a good look around on our road patrol and did not see any new activity. 

Snowpack Summary

Christmas gave us 10cm of snow along with localized winds at tree line and in the alpine. Expect to find some soft slabs along ridges and cross loaded features. Approach larger slopes with caution and take the time to evaluate what the winds have done.  

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.