Bulletin d’avalanche

Jasper

Dec 7 – 8, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Wed
Thu
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

Natural avalanche activity has dropped off. However, weak basal facets are still present on all slopes that have not yet slid this year. Triggering of this weakness could result in a full path avalanche. Stick to smaller more manageable terrain.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    This layer continues to settle and is becoming less of a concern. Steep cross loaded or lee slopes are likely trigger zones. Alpine snowpack depth remains highly variable. At treeline and below, travel is good and the snowpack is supportive.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    2–3
    These slabs are sitting over a weak basal facet layer. Most large avalanches that have been observed recently have been on this layer. It can be most easily triggered from shallow areas on the edge of fatter slopes.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable on Wednesday

Régions couvertes