Bulletin d’avalanche

Kispiox

Dec 20 – 21, 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
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Points saillants

Treat wind loaded and cross loaded terrain with caution.

The persistent weak layer is still around in isolated areas, avoiding large slopes and overhead is advisable.

Problèmes avalancheux

  • Wind Slabs

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

    Small pockets of windslab have developed in immediate lee features.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–3

    At 60 to 100 cm deep, it can be most likely triggered on steep roll-overs in wind-sheltered terrain around treeline.

Confidence

Moderate

  • Uncertainty is due to the fact that persistent slabs are particularly difficult to forecast.

Avalanche Summary

On Wednesday a small (size 1) human triggered avalanche was reported. It noted that the 20cm of snow failed over a crust.

If you are getting out in the backcountry, consider sharing your observations on the Mountain Information Network (MIN)!

Snowpack Summary

30 cm of recent snow has fallen over a crust that is present up to 1400 m.

In sheltered areas, a layer of weak, feathery surface hoar crystals is buried about 75 cm deep.

At 1100 m and below a prominent crust is just below a skiff of fresh snow and makes for challenging travel.

The snowpack is around 150 cm deep at treeline, tapering quickly with elevation.

Weather Summary

Friday Night
Partly cloudy. 2 cm of snow. 10 km/h southeast ridgetop wind. Treeline temperature -18 °C.

Saturday
Mix of sun and clouds. 2 cm of snow. 10 km/h south ridgetop wind. Treeline temperature -17 °C.

Sunday
Mix of sun and clouds. 4 cm of snow. 30 km/h southeast ridgetop wind. Treeline temperature -17 °C.

Monday
Mix of sun and clouds. 3 cm of snow. 20 km/h southeast ridgetop wind. Treeline temperature -21 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Approach lee and cross-loaded slopes with caution.
  • Surface hoar distribution is highly variable. Avoid generalizing your observations.

Régions couvertes