Bulletin d’avalanche

Kootenay Boundary

Apr 16 – 17, 2025Avalanche Canada
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Archivé · expiré last year

Danger d’avalanche

Fri
Sat
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Benign spring weather is bringing generally safe avalanche conditions.

Problèmes avalancheux

  • Cornices

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

    Cornices along ridgelines are large and looming. They weaken with progressive warming and could fail at any time.

Confidence

High

Avalanche Summary

A few size 2 cornice falls were observed on east-facing slopes north of Nelson on Tuesday. Wet loose avalanches (size 1 to 2) also occurred across the region during the warm, sunny weather on Sunday and Monday.

Snowpack Summary

Northerly alpine slopes may still hold 10 to 15 cm of soft, dry snow. Elsewhere, a thick crust covers the surface and may soften with daytime warming. There are no concerning layers deeper in the snowpack, and the snow is melting rapidly at lower elevations.

Weather Summary

Wednesday Night

Partly cloudy. 30 km/h northeast ridgetop wind. Treeline temperature -4 °C.

Thursday

Mix of sun and clouds with flurries in the Fernie area bringing 0 to 4 cm of snow. 20 km/h northeast ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Friday

Sunny. 20 km/h southwest ridgetop wind. Treeline temperature +3 °C. Freezing level 2500 m.

Sunday

Increasing cloud. 20 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 2200 m.

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.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Carefully evaluate big and steep terrain features before committing to them.

Régions couvertes