Bulletin d’avalanche

Banff Yoho Kootenay

Apr 10 – 11, 2012Parks Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

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

Freezing levels are forecast to rise to 3200m on wed PM. A weak overnight freeze, means that stability will deteriorate early. Back to winter on Thurs, with10-15cm of snow in the ALP/TL with cooling temps. Start and finish early on wed. IJ

Problèmes avalancheux

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3
    Loose wet slides can be expected on solar aspects, especially in the PM. These slides have the potential to trigger a large slab avalanche on one of the deeper weak layers, and there has been evidence of this occurring in the last few days.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–4
    Both the Valentines surface hoar and the basal facets are still causing isolated slides. Areas of most concern are terrain with weak, shallow and variable snow-packs, especially in the PM sun. Large triggers like cornices may also trigger this layer.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Freezing levels are uncertain

Régions couvertes