Boletín de aludes

Banff Yoho Kootenay

Feb 29 – Mar 1, 2012Parks Canada
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Archivado · caducó 15 years ago

Peligro de aludes

Wed
Thu
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
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Lo esencial

A lot of settlement in the snowpack was heard and felt today on a ski tour in Kootenay. This kept us on well-supported, low consequence terrain. With small amounts of snow in the next few days, the tip-toeing around convex slopes will continue.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    Moderate winds in the past few days have also created thin, but stiffer wind slab conditions 25-35 cm deep on ridgetop lee terrain. These have been seen to step down to the Valentine layer. Several natural slides were observed off Mt Bosworth today.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    2–3
    Stability tests on the Valentine layer in Kootenay today showed easy results, sudden planar, down 40-50cm. This is enough snow to create a large avalanche. This layer ranges from 20cm depth near Bow Summit, to 60cm near Sunshine and Yoho.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    Near Bow Summit yesterday, we encountered moderate, sudden collapse shears on basal depth hoar. Steep, thin areas mainly E. of the divide will be prone. Lake Louise reported recent, isolated slides triggered on surface hoar which stepped to ground.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Regiones cubiertas