Bulletin d’avalanche

South Coast Inland

Dec 30 – 31, 2025Avalanche Canada
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Archivé · expiré 9 months ago

Danger d’avalanche

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

Points saillants

Rising freezing levels and clear skies are creating heightened avalanche danger on steep slopes.

Approach steep slopes with caution and back off if the surface becomes moist.

Problèmes avalancheux

  • Wind Slabs

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

    Wind slabs formed on most aspects at treeline and above continue to remain active. Human-triggered wind slabs remain possible and are more likely in open terrain features on north facing terrain features.

  • Loose Wet

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

    Freezing levels will rise to 2200 m throughout the day and are coupled with sunny skies. Cold surface snow will become moist specifically on steep south facing terrain features.

Confidence

Moderate

  • Uncertainty is due to difficult to forecast freezing levels.

Avalanche Summary

Several human triggered size 1 to 1.5 wind slabs were reported on Saturday. These avalanches were mostly in open terrain features and steep terrain near ridge lines.

Snowpack Summary

Various surfaces of moist surface snow on steep solar facing slopes, and settling dry and wind affected snow on north facing slopes can be found.

This overlies a heavily wind affected snowpack over the December 16th crust that is roughly 120 to 150 cm deep.

In deeper snowpacks above 2200 m a crust formed mid-November, can be found near the ground.

Weather Summary

Monday Night
Clear skies. 20 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 2100 m.

Tuesday
Sunny. 30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Wednesday
Sunny. 30 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Thursday
Mix of sun and clouds. 1 cm of snow. 20 km/h south ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are isolated, but may remain reactive.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.

Régions couvertes