Bulletin d’avalanche

South Rockies

Apr 1 – 2, 2026Avalanche Canada
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Archivé · expiré 6 months ago

Danger d’avalanche

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

Points saillants

Snowfall amounts may vary greatly over a short distance.

Avoid slopes that have been loaded by the wind.

Problèmes avalancheux

  • Wind Slabs

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

    Wind slabs may have formed on Wednesday. Common trigger areas, like downslope of ridges and ribs, should be avoided if wind transport is observed.

  • Persistent Slabs

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

    Facets have developed over a crust formed after the atmospheric river. This layer is now buried 50 to 70 cm deep and has been reactive in snowpack tests. Wind slab avalanches may be enough to trigger this layer.

  • Loose Dry

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

Confidence

Moderate

  • We are uncertain about forecast precipitation amounts.

Avalanche Summary

Small dry loose and wet loose avalanches continued on Tuesday.

Snowpack Summary

New snow likely buries a crust formed on south aspects from strong sun on Tuesday; no new crust is expected on shaded slopes.

A crust formed after the atmospheric river in early March is down 50 to 70 cm, and facets have been observed over the crust. This layer has been reactive in snowpack tests in the Crowsnest Pass.

Below this, the snowpack is generally well consolidated with facets at the base of the snowpack in shallow areas near Elkford.

Weather Summary

Wednesday Night
Cloudy. Up to 5 cm of snow. 20 km/h southeast ridgetop wind. Treeline temperature -3 °C.

Thursday
Cloudy. 1 to 10 cm of snow, highest amounts near Castle. 10 km/h northwest ridgetop wind. Treeline temperature -4 °C.

Friday
Mix of sun and clouds. 2 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -3 °C.

Saturday
Mostly sunny. 40 km/h west ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • If triggered, wind slabs may step down to deeper layers, causing larger avalanches.
  • Be aware of the potential for large avalanches due to buried weak layers.

Régions couvertes