Bulletin d’avalanche

South Columbia

Jan 18 – 19, 2026Avalanche Canada
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Archivé · expiré 8 months ago

Danger d’avalanche

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

Points saillants

Preserved dry snow can be found in the high alpine. Elsewhere, travel conditions are rugged.

Practice good travel habits like avoiding terrain traps and slopes with cornices overhead.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3

    A layer of surface hoar is buried around 1 m deep. Large loads like cornice falls may be able to trigger this layer, especially in areas that lack a robust surface crust.

Confidence

High

  • Confidence is due to a stable weather pattern with little change expected.

Avalanche Summary

Recent avalanche activity has been a mixed bag including:

  • A number of cornice falls triggered large wind slabs, size 2 to 2.5, in extreme terrain in the high alpine

  • Loose wet avalanches up to size 2 out of steep solar aspects at alpine and treeline elevations

  • A couple of natural persistent slabs in the West Purcells on Thursday, a size 2, likely tree bomb-triggered in forested terrain, and a size 3.5 on glacial ice

Snowpack Summary

A widespread melt-freeze crust extends up to 2200 m in the Esplanades in the north end of the region and 2500 m in the Battle to the south. This crust may soften on steep south-facing slopes during the day. On all but southerly aspects in the high alpine, snow is dry and wind affected. Cornices loom large.

A surface hoar layer from in early January is buried around 1 m deep. The mid-December crust is now buried around 1.5 m deep, and is present up to 2300 m. Triggering these layers is unlikely under current conditions, and would require a large load like a cornice fall.

Weather Summary

Saturday Night
Clear skies. 20 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1700 m.

Sunday
Sunny. 20 km/h northwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1200 m.

Monday
Sunny. 20 km/h northwest ridgetop wind. Treeline temperature -5 °C. Freezing level valley bottom.

Tuesday
Mostly sunny. 20 km/h northwest ridgetop wind. Treeline temperature -7 °C. Freezing level valley bottom.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Be alert to conditions that change with elevation and sun exposure.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for slabs before you commit to it.

Régions couvertes