Bulletin d’avalanche

Banff Yoho Kootenay

Apr 6 – 7, 2012Parks Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

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

Afternoon cloud & light NE winds will likely keep slopes cool again tomorrow. Expect a strong freeze tonight. Still a winter snowpack with active deep weaknesses. Be mindful of prolonged sun affect increasing the avalanche hazard. LP

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Fresh wind slabs have been found in the alpine. Be extra careful in the immediate lees of alpine ridges, and on steep convex rolls.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    The recent storm snow (up to 35 cm in Kootenay) is sitting on several sun-crusts, which can provide a good sliding interface. Daytime heating & solar affect can increase the hazard on slopes overhead or on steeper terrain where buried crusts exist.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3
    Both the basal facet layer and the Feb 12 surface hoar are still surprising us a with isolated large avalanches, some being triggered by skiers. The terrain of most concern are weak, shallow and rocky snowpack areas.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes