Bulletin d’avalanche

Banff Yoho Kootenay

Nov 17 – 18, 2011Parks Canada
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Archivé · expiré 15 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

Easily triggered avalanches up to size 1.5 have been observed in the last 48 hrs by backcountry skiers and ski hill avalanche workers. Open steep terrain with wind loading should be carefully evaluated or avoided. JBW

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–3
    Steep open slopes at and above treeline have a soft to hard wind slab that is sensitive to human triggering and is failing near the ground on the basal depth hoar. In some places, this layer is failing on a surface hoar layer and then stepping down.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes