Bulletin d’avalanche

Banff Yoho Kootenay

Nov 14 – 15, 2012Parks Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

Wed
Thu
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
Sans niveau
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Points saillants

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Various hard and soft wind slabs (20-50cm thick) in the alpine are sitting on the Nov.6 crust and producing moderate shears with compression test. Slabs becoming less reactive but still possible for a skier to trigger these slabs in steep lee terrain

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    In helicopter flight over the Wapta on Sunday several deep slabs size 2-3 were been noted on isolated steep alpine slopes . Failure plane was at the bottom of the snow pack on firn or glacier ice. 

Weather Forecast

Mixed sun and cloud for tomorrow with freezing levels around 1300 meters.. No snow forecasted through the end of the week.

Snowpack Summary

25 to 35 cm of last weeks storm snow overtop of Nov. 6 rain crust. This crust is well developed up to 2500 m and disappears around 2700m. Pit at Bow Summit showed mod. shears within crust with compression test. Various hard and soft slabs found in alpine

Avalanche Summary

No new naturals avalanches observed today. 

Confidence

Régions couvertes