Bulletin d’avalanche

Banff Yoho Kootenay

Mar 31 – Apr 1, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

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

Another 10-20cm by Sunday AM with increasing NW winds and freezing levels to 1600m. Conditions are healing quick after each storm, given the warmer temperatures. Forecasts call for a big system to arrive Monday evening, so stay tuned. SH

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Up to 30cm from the last storm created wind slabs at higher elevations that have been bonding well to the surfaces below. With the next system tonight, watch for developing slabs around ridge crests and wind exposed slopes.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    The Valentines surface hoar layer is down 70-150cm. It is hard to initiate, but as people start to venture into bigger terrain, the consequences of triggering will be large if you find the sweet spot. Thin areas will be the most susceptible.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain on Tuesday

Régions couvertes