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Avalanche Forecast

Archived

Dec 25th, 2025–Dec 26th, 2025

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

Regions

Northwest Coastal, Boundary, Stewart, Ningunsaw.

Avoid steep slopes that have recently been loaded by wind. Recent wind has varied in direction, so watch for wind slabs on all aspects in wind-affected terrain.

Confidence

High

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

Avalanche Summary

A few small natural wind slabs were reported on Wednesday on south through west aspects. Some natural dry loose avalanches were also observed.

Over the past few days, wind slabs have been reported on a variety of aspects and elevations due to the shifting winds, so wind slabs should continue to be expected on all aspects in wind-affected terrain.

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 have faceted the snow surface. The new snowfall this weekend is expected to bond poorly to this weak surface layer.

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

Weather Summary

Thursday Night
Partly cloudy. 20 km/h northwest ridgetop wind. Treeline temperature -16 °C.

Friday
Sunny. 20 km/h north ridgetop wind. Treeline temperature -22 °C.

Saturday
Mostly cloudy. 3 to 5 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -23 °C.

Sunday
Mostly cloudy. 5 to 15 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -16 °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.