Bulletin d’avalanche

Purcells

Dec 2 – 3, 2025Avalanche Canada
Voir sur la carte
Archivé · expiré 10 months ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Strong winds at upper elevations may have created pockets of wind slab that a person could trigger.

Assess steep slopes for dense or stiff snow before committing.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5

    New snow and strong west ridgetop wind may build fresh and reactive wind slabs, particularly in isolated areas where they sit directly above a weak, sugary facet layer that can e found near the base of the snowpack.

Confidence

Low

Avalanche Summary

No recent avalanches have been reported.

Snowpack Summary

New snow 3 to 8 cm is possible. The upper snowpack is variable, with wind-affected surface snow in open terrain and soft and faceted snow or surface hoar in sheltered areas. This overlies a crust that formed in early November. The lower snowpack consists of multiple crusts, and in some areas a layer of weak, sugary facets can be found near the ground.

Total snowpack depths are roughly 60 to 80 cm, tapering quickly at lower elevations.

In many areas, especially below treeline, there is not enough snow to smooth out surface roughness or reach the threshold for avalanches.

Weather Summary

Monday Night

Cloudy with new snow 2 to 6 cm. 20 to 30 km/h gusty west ridgetop wind. Treeline temperature -9 °C.

Tuesday

Mostly cloudy with light flurries and some sunny periods. 15 to 25 km/h northwest ridgetop wind. Treeline temperature -8 °C.

Wednesday

Cloudy with sunny periods. 10 to 30 km/h west ridgetop wind. Treeline temperature -7 °C.

Thursday

Cloudy with snow 5 to 10 cm. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Carefully evaluate steep lines for wind slabs.
  • Be cautious of buried obstacles, especially below treeline.

Régions couvertes