Bulletin d’avalanche

Northwest Coastal

Dec 27 – 28, 2025Avalanche Canada
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Archivé · expiré 9 months ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

Seek out areas that haven't been affected by the wind.

Recent wind has varied in direction, so watch for wind slabs on all aspects in wind-affected terrain.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Reactive wind slabs have been reported on a range of aspects over the past few days, including lower elevations than usual. Expect the most reactive slabs in immediate lee terrain, such as just below ridgetops.

Confidence

Moderate

  • 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 can 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 down into the treeline.

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

Friday Night
Mostly clear skies. 10 km/h southwest ridgetop wind. Treeline temperature -21 °C.

Saturday
Mostly cloudy. 5 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -19 °C.

Sunday
Mostly cloudy. 10 to 25 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -13 °C.

Monday
Mostly cloudy. 15 to 30 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -5 °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.

Régions couvertes