Boletín de aludes

South Coast

Dec 19 – 20, 2011Avalanche Canada
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Archivado · caducó 15 years ago

Peligro de aludes

Wed
Thu
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    Fresh wind slabs are lurking below ridgecrests, behind terrain features and in cross-loaded gullies.

Confidence

Good - -1

Weather Forecast

Tuesday: Light snowfall with 5-10cm of accumulation, freezing levels dropping to valley bottoms and moderate westerly winds. Wednesday: Mostly clear and dry with freezing levels in valley bottoms and light southeasterly winds. Thursday: Increasing cloud with flurries possible late in the day. Freezing levels remaining in valley bottoms.

Avalanche Summary

Recent avalanches have been limited to easy to trigger, but small sluffs.

Snowpack Summary

5-10cm of recent snow in the Duffy Lake area, and 10-20cm in Coquihalla Pass, overlies a variety of surfaces including a 1cm melt-freeze crust below approximately 1850m, and well settled old storm snow in sheltered sites or wind crust in exposed areas above 1850m. Buried surface hoar persists down 15-20cm and recently gave easy shears in the Duffy Lake area. It is widespread and up to 25mm near valley bottom, becoming less prevalent and smaller with elevation and disappearing completely as you approach treeline. Locally deep and weak wind slabs are lurking and cornices are sensitive.

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