Boletín de aludes

Kootenay Boundary

Jan 28 – 29, 2013Avalanche Canada
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Archivado · caducó 14 years ago

Peligro de aludes

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

Avalanche danger may be CONSIDERABLE in the Alpine in areas with highest amounts of recent snow, such as Kootenay Pass.

Problemas de aludes

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–4
    In areas with around 30 cm recent snow, a storm slab is reactive. In other areas, a storm slab is slowly building up. Winds have shifted snow into soft slabs on lee slopes as well.

Weather Forecast

Monday night: Strong NW winds. Alpine temperature near -4. Very light snow.Tuesday: Light N winds. Alpine temperature near -12. Light snow.Wednesday: Strong NW winds. Alpine temperature near -8. Light snow.Thursday: Light W winds. Alpine temperature near -6. Light snow.

Avalanche Summary

Loose dry avalanches and soft slabs to size 1.5 were triggered naturally and by skiers on Sunday. Explosives triggered several size 1-2 slabs on Monday, failing on a buried crust down 20-30 cm.

Snowpack Summary

Around 15-35 cm snow overlies various old surfaces including surface hoar, facets, hard slabs and crusts. The wind has created soft slabs on lee slopes. As incremental snowfalls build up, a cohesive storm slab is developing. Deeper in the pack (about 50-60cm down), a weak interface exhibits mainly hard to no results in snowpack tests, with isolated moderate, sudden results.

Confidence

Fair - Due to variable snowpack conditions

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