Bulletin d’avalanche

South Okanagan

Dec 22 – 23, 2025Avalanche Canada
Voir sur la carte
Archivé · expiré 9 months ago

Danger d’avalanche

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

Points saillants

Be careful as you transition into wind-affected terrain where triggering is most likely.

The best and safest riding will be on slopes that have soft snow without any slab properties.

Problèmes avalancheux

  • Wind Slabs

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

    Wind slabs may still be reactive to skier traffic. Be careful as you transition into convex, wind-affected terrain, where triggering is most likely.

Confidence

Moderate

  • Uncertainty is due to the limited number of field observations.

Avalanche Summary

Recent explosive control work on north-to east-facing aspects in the alpine terrain produced wind slab and storm slab avalanches up to size 2. Some large slabs stepped to the November crust, 50 cm deep, producing very large avalanches.

Sluffing has been observed on steep sheltered slopes where low-density snow has not been affected by the wind.

Snowpack Summary

An additional 5-10 cm of low-density snow has accumulated on top of the previous storm snow, bringing the total to 25-50 cm. This has been redistributed by southerly wind over a prominent crust formed in mid-December that extends up to 2200 m. Below this, several other crust layers may exist in the upper snowpack.

A faceted crust from mid-November can be found in the mid-snowpack. Snowpack depth is around 1 m, tapering with elevation below 1500 m.

Weather Summary

Sunday Night
Cloudy. 5 to 10 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -6 °C. Freezing level 1000 m.

Monday
A mix of sun and clouds. Up to 2 cm of snow in the afternoon. 40 km/h south ridgetop wind. Treeline temperature -6 °C. Freezing level 1000 m.

Tuesday
A mix of sun and clouds. 40 km/h south ridgetop wind. Treeline temperature -5 °C.

Wednesday
Mostly cloudy. 5 to 10 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -5 °C.

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.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.
  • Be careful as you transition into wind-affected terrain.

Régions couvertes