Bulletin d’avalanche

Banff Yoho Kootenay

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

Danger d’avalanche

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

There are still isolated reports of settlements in thinner snowpack areas at higher elevations. It is still early winter, so although the chance of triggering a big avalanche has decreased, confidence is still not high in the big terrain. SH

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Previous wind slabs up to 30cm thick are still triggerable in steep, open terrain. 10-15cm expected this Saturday with light to moderate W winds will do little to change the overall hazard besides sloughing in steep terrain and near ridgetops.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    A well settled midpack overrides a weaker 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