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Avalanche Forecast

Archived

Feb 25th, 2022–Feb 26th, 2022

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

Regions

Kananaskis.

As warm weather approaches winds will increase. Expect new windslabs to form as winds increases. Alpine and treeline hazard levels could increase to considerable if the winds arrive earlier than expected.

Confidence

Moderate -

Weather Forecast

Tomorrow will have a high of -8, cloudy skies, increasing westerly winds, and maybe a few flurries. Alpine winds will 50-60 km/hr from the west by midafternoon.

Avalanche Summary

We did see one sz2 avalanche today. It started as a loose dry sluff, but quickly stepped down to the Feb 19 interface. It was a cross loaded feature with alpine characteristics, but technically at treeline elevations. East aspect.

Snowpack Summary

Recent storm snow has settled to 25-30cm on southern aspects. It remains light and dry with some light wind effect. North aspects are much more wind effected at treeline and alpine elevations. Overall the surface snow feels facetted and weak, even in areas that have received wind. Wind slab character varies greatly and is tricky to predict.

Terrain and Travel

  • Be alert to conditions that change with elevation and wind exposure.
  • Wind slabs may be poorly bonded to the underlying crust.

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.