Bulletin d’avalanche

Banff Yoho Kootenay

Mar 22 – 23, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Sat
Sun
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

The sun this coming weekend, and with it will come warmer temp's. This will increase the danger on south and west aspects during the day. There have been close calls on these aspects the last few days; check our FB site for pics.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Fresh wind slabs up to 50cm thick have been formed 2 days ago from strong W/SW winds. These slabs are now hidden by 10-15cm of new snow. These will be sensitive to skier triggering in the lee of ridge crests and in cross-loaded gullies.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3
    Down 70-150cm, the Valentines surface hoar is producing harder shears and showing signs of rounding. However, several natural and skier triggered avalanches over the past few days show that this layer is still a concern.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3
    Recent snow has covered up thin, scoured areas, making them look appealing to riders. East of the Divide, there have been multiple remote-triggered avalanches in shallow snowpack areas that have stepped down to this layer, particularly west aspects.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes