Bulletin d’avalanche

Jasper

Dec 19 – 20, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Mon
Tue
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

With up to 35cm of storm snow in isolated locations, very little natural activity was noted and visibility was excellent. Don't be lulled into false sense of security as many slopes may be awaiting the human trigger.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–3
    Windslabs persist near exposed ridgetops and cross loaded gulleys.

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Anywhere from 5-35cm of new snow fell Saturday evening. It appears to be bonding well as winds were light and temperatures warm when storm arrived. Winds are just now slabbing the storm snow.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    Basal facet collapses are still being noted in test pits yet layers are bridging well above. Caution likely shallow snowpack trigger zones.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes