Bulletin d’avalanche

Banff Yoho Kootenay

Feb 25 – 26, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Sat
Sun
Alpin
4 · Fort
Limite forestière
4 · Fort
Sous la limite
3 · Marqué

Points saillants

10-20 cm forecasted for tonight with Mod-Strong SW winds will tip us into another avalanche cycle on the Valentine's surface hoar. Be very selective and conservative with route selections this weekend.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2
    Moderate to strong winds in the few days have created touchy wind slab conditions on lee terrain in the alpine. We expect these slabs to be added to with a forecast of mod to strong SW winds and 10-20 cm tonight.
  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely
    Taille
    2–3
    At treeline 40-50 cm of settled storm snow sits overtop of the Feb. 14 surface hoar, up to 80 cm in the sunshine region. Even if a feature has avalanched there is likely residual hazard since we haven't seen good cleanouts in what has gone.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain

Régions couvertes