Bulletin d’avalanche

Kispiox

Dec 23 – 24, 2025Avalanche Canada
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Archivé · expiré 9 months ago

Danger d’avalanche

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

The main concern is newly formed wind slabs at upper elevations.

Avoid steep slopes where the snow feels denser or wind-affected.

Problèmes avalancheux

  • Wind Slabs

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

    Wind slabs have been reported on many aspects over the past week. Watch for stiffer snow near ridgetops and on steep slopes.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    2–2.5

    Several surface hoar layers are buried 60 to 100 cm deep across the region, but there have been no recent signs of reactivity on these layers. The likelihood of triggering these layers is uncertain, so use caution on large, steep slopes.

Confidence

Moderate

  • Uncertainty is due to the limited number of field observations.
  • Uncertainty is due to how quickly the snowpack will recover and gain strength.

Avalanche Summary

Several natural and human-triggered slabs occurred during last week’s stormy weather (see photos), but there were no reports of new avalanches occurring over the weekend. No persistent slab avalanches have been reported in the past week, leaving uncertainty around this problem.

Snowpack Summary

Shifting winds have formed wind slabs on many upper-elevation aspects. A crust buried 30 to 50 cm deep extends to about 1400 m, and wind slabs may bond poorly to it.

In sheltered areas, surface hoar layers are buried 60 to 100 cm deep. Triggering is unlikely, but consequences could be high.

Snowpack depth varies widely, averaging around 150 cm at treeline and thinning quickly at lower elevations.

Weather Summary

Monday Night
Mostly cloudy. 2 to 3 cm of snow. 30 km/h southeast ridgetop wind. Treeline temperature -20 °C.

Tuesday
Mix of sun and clouds. 0 to 1 cm of snow. 20 km/h south ridgetop wind. Treeline temperature -17 °C.

Wednesday
Mix of sun and clouds. 2 cm of snow. 50 km/h east ridgetop wind. Treeline temperature -16 °C.

Thursday
Mostly sunny. 20 km/h southwest ridgetop wind. Treeline temperature -17 °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.
  • Cautiously approach steep slopes that are open or sparsely treed.

Régions couvertes