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Avalanche Forecast

Archived

Mar 21st, 2021–Mar 22nd, 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.
Below Treeline
Natural avalanches unlikely.

Regions

Kananaskis.

10cm of snow forecast for Monday afternoon should refresh the skiing. Be on the lookout for new wind slabs. 

Confidence

Moderate -

Weather Forecast

Monday will be cooler with light snow. The morning will start off with strong SW winds and flurries. By midday, the winds will calm down and the flurries will turn to snow. Expect 5cm of snow by late afternoon for a total of 10cm by late evening. Temperatures for Monday will be in between -5c and -10c.

Avalanche Summary

Nothing new to report.

Snowpack Summary

Expect a mix of recent snow and new wind slabs in the alpine. The forecast snow will most likely be low density with the cooler temperatures, so expect some sluffing in steeper terrain. The two main things to keep an eye out for is for new snow accumulation and the formation of new wind slabs. With Spring time, the weather can change quickly and the snowfall can sometimes be far more than forecast and be very localized. The same goes if the sun comes out in between snow squalls; it can make the snow change quickly, especially on solar aspects. Use your mountain sense and evaluate each area carefully. 

Terrain and Travel

  • Wind slabs may be poorly bonded to the underlying crust.
  • Closely monitor how the new snow is bonding to the crust.
  • Be carefull with sluffing in steep terrain, especially above cliffs and terrain traps.

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.