Bulletin d’avalanche

Banff Yoho Kootenay

Nov 25 – 26, 2011Parks Canada
Voir sur la carte
Archivé · expiré 15 years ago

Danger d’avalanche

Fri
Sat
Alpin
4 · Fort
Limite forestière
4 · Fort
Sous la limite
3 · Marqué
Ouvrir la carte complète

Points saillants

A widespread avalanche cycle has been caused by the recent storm overloading the basal depth hoar. Another storm Friday will keep the danger HIGH.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely
    Taille
    2–3
    Strong westerly winds with the storm have created thick soft to hard wind slabs in all open areas that are easily collapsing on the basal depth hoar and increasing the propagation width of the resulting avalanches.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely
    Taille
    2–3
    A 40mm storm with strong winds has doubled to tripled the total season snowpack over the last 36 hrs. Natural and human triggered avalanches up to size three are occurring throughout the forecast area failing on the basal depth hoar.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes