Bulletin d’avalanche

Northwest Inland

Mar 22 – 23, 2026Avalanche Canada
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Archivé · expiré 6 months ago

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

Recent snow and strong southwest winds have formed wind slabs at treeline and above.

Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.

Problèmes avalancheux

  • Wind Slabs

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

    10 to 20 cm of recent snow and strong southwest winds have formed wind slabs at treeline and above.

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–3

    Cornices are large, looming, and may trigger large persistent slabs on slopes below.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3.5

    Persistent weak layers of crusts/facets or surface hoar in the top 200 cm of the snowpack may be possible to trigger where there is not a thick crust under the recent snow.

Confidence

Moderate

  • We are uncertain about alpine conditions due to limited field observations.

Avalanche Summary

On Saturday, a few skier triggered size 1 wind slabs were reported on a variety of aspects at treeline.

Observations in this region are very limited. If you head out into the backcountry, let us know what you're seeing by submitting a MIN report.

Snowpack Summary

Cornices are large and looming. Avoid traveling underneath them.

10 to 20 cm of recent snow and strong southwest winds have formed wind slabs at treeline and above. Below the recent snow are a variety of surfaces, including small surface hoar, facets, crusts, and wind scoured snow.

There are multiple persistent weak layers consisting of crust/facets or surface hoar in the top 200 cm of the snowpack.

Weather Summary

Sunday Night
Mostly cloudy. 5 to 15 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Monday
Mix of sun and clouds. 30 km/h west ridgetop wind. Treeline temperature -9 °C.

Tuesday
Mix of sun and clouds. 0 to 5 cm of snow. 30 km/h southeast ridgetop wind. Treeline temperature -8 °C.

Wednesday
Mostly cloudy. 0 to 5 cm of snow. 40 km/h southeast ridgetop wind. Treeline temperature -11 °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.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Cornice failures could trigger large and destructive avalanches.
  • Be aware of the potential for larger than expected storm slabs due to buried surface hoar.
  • Use ridges or ribs to avoid areas of wind-loaded snow.

Régions couvertes