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Avalanche Forecast

Archived

Dec 24th, 2025–Dec 25th, 2025

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, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Northwest Coastal, Boundary, Stewart, Ningunsaw.

Avoid steep slopes that have been loaded by recent wind.

Confidence

High

  • The number, quality, or consistency of field observations is good, and supports our confidence.

Avalanche Summary

One small natural wind slab avalanche was observed on a west aspect on Tuesday. Several natural wind slab avalanches (size 1 to 2) were observed on multiple aspects on Monday. Ongoing moderate winds will continue to build wind slabs, with wind direction varying by elevation.

Snowpack Summary

Strong, shifting winds have heavily affected alpine and treeline terrain, building wind slabs on many aspects and in some places extending into the trees.

Cold temperatures are faceting the surface, which may become an issue with new snow this weekend.

The snowpack remains generally deep and simple for the time of year, with treeline depths exceeding 300 cm.

Weather Summary

Wednesday Night
Clear skies. 10-20 km/h east ridgetop wind. Treeline temperature -13 °C.

Thursday
Sunny. 20-30 km/h southwest ridgetop wind. Treeline temperature -14 °C.

Friday
Mostly sunny. 10-20 km/h northeast ridgetop wind. Treeline temperature -20 °C.

Saturday
Mix of sun and clouds. 3 to 5 cm of snow. 20-40 km/h southwest ridgetop wind. Treeline temperature -20 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use ridges or ribs to avoid areas of wind-loaded snow.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.

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.