Avalanche forecast

Purcells

Dec 9 – 10, 2025Avalanche Canada
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Avalanche danger

Thu
Fri
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low

Highlights

Overnight snow and wind are expected to form fresh and reactive wind slabs at higher elevations. Head to sheltered terrain for the best riding.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2

    Watch for reactivity near ridgecrest and rollovers. Wind slabs are most reactive during their formation.

Confidence

Moderate

Avalanche Summary

With the recent snowfall we expect slabs to be reactive to rider traffic.

If you are out and about in the mountains, please consider posting your observations to the MIN.

Snowpack Summary

The upper snowpack is a mix of wind-affected snow in open areas and softer snow in sheltered spots, sitting on top of faceted snow or surface hoar. Recent storm snow totals vary from 10-30 cm throughout the region.

A crust from mid November is buried 20-30 cm deep. Lower in the snowpack, there are several crusts, and in some areas a weak, sugary facets can be found near the ground.

Snowpack depths range from 70–90 cm, thinning quickly at lower elevations. In many areas, especially below treeline, slopes lack enough snow to cover ground roughness and produce avalanches.

Weather Summary

Monday Night
Cloudy. Up to 25 cm of snow in the west Purcells and Bull area, 10 cm elsewhere. 40 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1600 m.

Tuesday
Mostly sunny. 1 to 2 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -4 °C. Freezing level 1600 m.

Wednesday
Mix of sun and clouds. 10 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.

Thursday
Mostly cloudy. 5 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
  • Be cautious of buried obstacles, especially below treeline.

Regions covered