Bulletin d’avalanche

Banff Yoho Kootenay

Jan 13 – 14, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Fri
Sat
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

On Friday a ridge of high pressure will bring light wind and sunny skies. On Saturday a pacific frontal system will bring light snowfall (10-15 cm). The hazard is not expected to change much unless snowfall amounts are higher then forecasted.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Recent moderate to strong north and north west winds have created windslabs in all open terrain. Steep lee features at and above treeline should be approached cautiously.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    A well settled midpack overrides a weak facetted base. This weak base is found most places except the west side of the divide. Beware of steep shallow snowpack areas (where the likelihood of triggering this basal layer is highest).

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Saturday

Régions couvertes