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Avalanche Forecast

Archived

Feb 24th, 2022–Feb 25th, 2022

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

Regions

Banff Yoho Kootenay.

Enjoy the warming temperatures but keep the wind slabs in mind! Good riding conditions exist in sheltered areas on facetted snow surfaces.

Weather Forecast

The next few days will become progressively warmer with increasing winds and intermittent flurries by the end of the weekend. Friday and Saturday will be mainly sunny and dry, temperature highs ranging from -13 to -6, light alpine winds switching from northerly to south westerly. Expect moderate SW winds and snow accumulations up to 5cm on Sunday.

Snowpack Summary

Wind effect, wind slabs and scoured surfaces exist in many alpine and tree-line elevations. Sheltered areas have a soft, facetted surface. The Jan 30th surface hoar/sun crust layer is variable in distribution and reactivity, but is generally 40-60 cm down and producing hard to no results in snowpack tests.

Avalanche Summary

A remote cornice failure triggered a size 3 avalanche in Kootenay National Park on Wednesday. On Thursday, the local ski areas reported a few small wind slab avalanches up to size 1 with explosives control.

Confidence

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.