Bulletin d’avalanche

Banff Yoho Kootenay

Dec 11 – 12, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Sun
Mon
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

The chance of human triggering will continue to decrease with a long period of cool weather and little precipitation forecast through next week. Facetting and slow weakening will be the next long term trend for the snowpack.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    2–3
    Strong winds have been moving snow from the west and north for the past week and hard wind slabs have formed. It is likely that any slab will step down to the weak base. Choose moderate slope angles & low consequence terrain.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    2–3
    The weak base of depth hoar and facets is now less sensitive to human triggering , however skier triggered and natural avalanches have recently been observed on this layer.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes