Bulletin d’avalanche

Banff Yoho Kootenay

Apr 3 – 4, 2012Parks Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

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

Although it may seem like spring is here, the winter snowpack has not yet gone through a serious melt freeze. Large avalanches and close calls have been reported all week. See photo of West Bowl from today. It is still time to place safe!

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    The storm snow from the last few days has been blown into wind slabs and there are very large cornices. These slabs can be easily triggered and may result in an avalanche stepping down to deeper weaknesses.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–4
    The Valentines surface hoar layer and the weak basal depth hoar have both been sliding layers for large avalanches over the last three days. Steep unsupported slopes, thin rocky areas and steep solar aspects are the most likely areas to trigger.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain

Régions couvertes