Bulletin d’avalanche

Jasper

Mar 30 – 31, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Sun
Mon
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Points saillants

One size 3 avalanche was noted today off an alpine ridgetop likely cornice triggered. Another 15cm is expected Friday night with a possible E flow Saturday evening delivering additional accumulations at Maligne and Icefields.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    2–3
    Thursday night Maligne received 30cm and Icefields 5-20cm. Another 10-15cm may arrive Friday into Saturday. Winds continue to build slabs and add load potentially to a slippery crust from earlier sun effect particularly on steep solar aspects.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–4
    The buried surface hoar layer 70-120cm down remains a concern in areas that have not avalanched. The layer is still being observed at treeline and below treeline locations yet 'generally' layers are bridging it above. Cautious of shallow locations.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3
    Recent cloud cover has reduced daytime heating. Still be cautious if the sun pokes out as avalanche activity will increase quickly particularly on steep S or W aspect rock bluffs or gullies.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Saturday

Régions couvertes