Bulletin d’avalanche

Jasper

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
2 · Modéré
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Points saillants

The alpine and exposed tree line has been hammered by SW winds. Expect slab conditions on any wind exposed slope. Sheltered glades will offer the best skiing.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    There is a veneer of wind slab on lee slopes ranging from soft slab on more sheltered slopes to hard slab on exposed slopes. Human triggering is possible which may then step down to the basal facet layer resulting in a large full path avalanche.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    2–3
    The weak basal facet layer is bridged by a supportive mid-pack below treeline and by hard slab on wind exposed features at treeline and above. This weakness is most likely triggered from thin areas in or on the edge of large open slopes.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes