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Archived

Avalanche Forecast

Mar 13th, 2020–Mar 14th, 2020
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
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.

Cold and easterly winds for Saturday. Good skiing can be found in sheltered areas. Be on the lookout for wind slabs in new places as the winds have changed direction.

Confidence

Moderate -

Weather Forecast

Saturday morning, you can expects temperatures to be around -28c and warming up to a high of -17c. Skies will be a mix of sun and cloud while winds will be moderate to strong from the East.  

Sunday morning, it will be another chilly one and sunny, BUT the temperature is forecast to rise during the day to -5c. Stay tuned.....

Avalanche Summary

No new avalanches have been reported or observed.

Snowpack Summary

Widespread buried wind slabs in the alpine and parts of treeline are found under the 10cm of recent snow. There are several generations of wind slabs and it is taking some time for them to consolidate into one layer. Be on the lookout for some reverse loading as the winds have been from the East in the last little while. Expect some areas of surface sun crust on steep solar aspects, particularly at lower elevations. Cornices are large right now and should be given respect.

Terrain and Travel

  • Be aware of highly variable recent wind loading patterns.
  • Avoid lee and cross-loaded terrain.
  • Extra caution is needed around cornices under the current conditions.
  • Be aware of the potential for large avalanches due to the presence of a deep persistent slab.

Avalanche Problems

Wind Slabs

Yet another generation of wind slabs has been recently formed. These are everywhere in the Alpine and extend down into Treeline. 

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1.5 - 3

Deep Persistent Slabs

Still concern for the weak layer deep in the snowpack. Triggering is more concerning in shallow snowpack areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 1.5 - 3