Bulletin d’avalanche

Banff Yoho Kootenay

Feb 19 – 20, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

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

Scattered flurries and moderate west winds are forecast for the remainder of the weekend. Only isolated areas in the alpine have enough of a slab on top of the Valentine's weak layer to be a concern. They will be sensitive to triggering where present

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    The Valentines surface hoar, facets will be buried anywhere from 5 cm - 30cm where drifted in on the immediate lees of ridge crests. These wind slabs will be thicker West of the divide and have received a small additional load today.

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Large cornices on lee (mostly easterly) aspects still loom high overhead. Several large cornice collapses have been observed over the past week. The volume of cornice debris would be very detrimental to your day.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1
    In steep areas mainly West of the divide, watch out for new snow sloughing on surface hoar, facets or suncrust on steep solar aspects. This will increase with additional new snow.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain

Régions couvertes