Bulletin d’avalanche

Jasper

Dec 22 – 23, 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

Moderate to strong winds continued in the alpine through today but from the north; expect to encounter some reverse loading of south and east facing features at ridgecrests and tree fences.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Windslabs are present in sheltered lee features at Treeline, mostly near ridge tops and protected pockets in the Alpine. The past warm temperatures are helping them bond to older snow surfaces.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    Basal facet collapses are still being noted below midpack bridging layers. Shallow snowpack areas and rocky outcrops are likely trigger locations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Due to the number and quality of field observations

Régions couvertes