Bulletin d’avalanche

Jasper

Dec 24 – 25, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Sat
Sun
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Warming temperatures with the possibility of rain showers forecast for this weekend could increase the avalanche danger below treeline. Pay close attention to abrupt changes in temperature and precipitation type if traveling in avalanche terrain.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    The alpine is mostly blown bare with hard windslabs and loaded lee slopes that can be easily identified and avoided. Wind slabs are present on easterly treeline aspects. These can be a little more tricky to identify so 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 occurring below the midpack bridging layer. Shallow snowpack areas and rocky outcrops are likely trigger locations. A large full path avalanche could result if this weakness is triggered.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Saturday

Régions couvertes