Bulletin d’avalanche

Banff Yoho Kootenay

Dec 28 – 29, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Wed
Thu
Alpin
4 · Fort
Limite forestière
3 · Marqué
Sous la limite
1 · Faible
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Points saillants

Ten to 15 mm of precip is forecast for Wednesday and another 10 mm for Thursday night and Friday. This new snow in combination with forecast strong winds will increase the avalanche hazard.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    The 20 cm of storm snow that fell on Christmas day has been redistributed by two days of mod to strong south and south west winds. Fresh wind slabs have been created in the alpine and open terrain at treeline.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    The basal facets still linger at the bottom of the snowpack. Although we have not seen any recent avalanche activity on this layer be aware that this interface could become active with fresh snow loads.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes