Bulletin d’avalanche

South Rockies

Feb 18 – 19, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

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

For the best and safest riding, seek out areas of soft snow, untouched by the wind.

Manage your sluff in steep terrain.

Problèmes avalancheux

  • Wind Slabs

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

    The new snow is very light and may have formed wind slabs in lee features.

  • Loose Dry

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

    Loose dry avalanches will be likely in steep terrain where new snow hasn't formed a slab.

Confidence

Moderate

Avalanche Summary

On Sunday, there were a few small dry loose avalanches.

On Saturday, there was a small (size 1.5) natural storm slab near Castle and a few small dry loose avalanches.

Snowpack Summary

Around 25 cm of new snow has fallen over the weekend, accompanied by light to moderate wind. Wind is expected to be strongest through passes and gaps in the mountains on Tuesday.

The new snow overlies 20 to 40 cm of mostly faceted snow sitting on a weak layer from late January. The weak layer consists of a crust on sun-exposed slopes, and a layer of surface hoar or facets on all other aspects.

The mid and lower snowpack is generally well settled.

Weather Summary

Monday Night

Partly cloudy. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -17 °C.

Tuesday

Mostly sunny. 10 km/h northwest ridgetop wind. Treeline temperature -14 °C.

Wednesday

Sunny. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Thursday

A mix of sun and cloud. 20 to 30 km/h west ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded terrain features.
  • Use appropriate sluff management techniques.

Régions couvertes