Bulletin d’avalanche

Banff Yoho Kootenay

Apr 4 – 5, 2012Parks Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

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

The winter that keeps giving. 20cm of new snow by tomorrow. There has been just enough spring-like weather to create crusts on solar aspects, but not enough to create the usual bomber spring snow pack. Travel as though it is still winter!

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    New wind slabs are forming in the alpine and at tree-line, on top of the storm snow slabs formed the last few days. 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 several 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

Forecast snowfall amounts are uncertain

Régions couvertes