Bulletin d’avalanche

Banff Yoho Kootenay

Dec 15 – 16, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

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

There is little change right now except some small fresh new wind slabs. The storm forecast for Friday/Saturday looks like it may ride over the ridge and not produce much for us but the models are not in agreement yet.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Wind transport has been forming thin hard slabs on lee features at ridge tops. These may be easily triggered on the right feature.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    In many areas the hard wind slab on wind loaded features is bridging the weak facets and depth hoar at the base. There is still a possibility of human triggering a large full depth avalanche on any steep slope.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Track of incoming weather systems is uncertain on Friday

Régions couvertes