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Avalanche Forecast

Archived

Feb 24th, 2023–Feb 25th, 2023

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

Regions

Glacier.

Anticipate windslabs in open areas on all aspects. If more snow falls than forecasted, slabs will be easier to trigger.

Confidence

Moderate

Avalanche Summary

Natural avalanche activity has tapered off from the last storm and only a few isolated avalanches were observed through the highway corridor. However, skier triggered avalanches are still a possibility.

Snowpack Summary

Wind effect in the alpine & treeline elevation sits on a suncrust on solar aspects. Settled storm snow exists in sheltered locations.

The deep persistent weakness near the base of the snowpack consists of facets and a decomposing crust in some locations.

Weather Summary

Temperatures will gradually rise into the weekend and 14cm is forecast for Saturday afternoon and into Sunday. Winds are forecast to be moderate from the SW and a Alpine high of -12*C.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.

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.