Bulletin d’avalanche

Jasper

Dec 27 – 28, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

A cornucopia of windslabs exist across the landscape with steady moderate winds. Many slopes are stripped bare or wind pressed. Cool temperatures aiding stability after 20cm warm storm but human triggered avalanches remain possible.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Moderate winds continue to hammer the Icefields. 20cm last night blew away or melded into existing windslab. surface conditions range from boilerplate, sustrugi, and loaded lee slopes. Avoid slabby feeling slopes.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    Basal facet collapses are still possible and will remain a concern as consequences would be big if triggered. Shallow snowpack areas and rocky outcrops are trigger locations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind effect is extremely variable

Régions couvertes