Bulletin d’avalanche

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Feb 4 – 5, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Thu
Fri
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré

Points saillants

Seek areas where the wind is not actively depositing snow.

The best riding will be in zones protected from the wind with no overhead hazard.

Problèmes avalancheux

  • Wind Slabs

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

    Moderate north easterly winds have reverse loaded south aspect slopes. New and reactive wind slabs will continue to develop as these winds are forecast to persist.

  • Persistent Slabs

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

    A 50 to 100 cm deep weak layer from early December, may be possible to trigger on steep, rocky or convex slopes.

Confidence

Moderate

Avalanche Summary

On Sunday, in the Hankin area, a natural wind slab avalanche was observed above the cabin. Review this MIN for further details.

During last weeks avalanche cycle, wind slabs were able to step down to weak layers from December.

Snowpack Summary

30 to 50 cm of storm snow from last week overlies a variety of surfaces. This snow has fallen on a crust on south-facing slopes, and in places protected from the wind surface hoar.

Wind slab exist on all aspects. Currently strong northly winds are forming pockets of wind slabs on south aspect terrain and past southerly winds developed wind slab on north aspect terrain.

A weak layer of facets and crust from early December is buried approximately 50 to 100 cm deep.

Weather Summary

Monday Night

Clear. 50 to 60 km/h east ridgetop wind. Treeline temperature -22 °C.

Tuesday

Sunny. 50 to 60 km/h east ridgetop wind. Treeline temperature -18 °C.

Wednesday

Sunny. 10 to 25 km/h east ridgetop wind. Treeline temperature -12 °C.

Thursday

Sunny. 10 to 15 km/h variable ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

Régions couvertes