Boletín de aludes

Cariboos

Feb 5 – 6, 2012Avalanche Canada
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Archivado · caducó 15 years ago

Peligro de aludes

Tue
Wed
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
    1–5
    Be alert for wind slabs behind ridges and terrain breaks.

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–7
    Large cornices are looming over many slopes. They are weakest when it's warm and sunny. A falling chunk could trigger an avalanche on the slope below, potentially releasing a deep weak layer.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–4
    Direct sun and warming can trigger loose avalanches, especially in steep south-facing terrain.

Confidence

-1 - -1

Weather Forecast

Monday-Wednesday: Dry weather. Freezing level dropping to valley floor at nights and rising to around 1000m during the day. Light winds.

Avalanche Summary

Numerous loose snow avalanches and a few slabs were triggered by warming and solar radiation on Friday. In some cases, icefall or cornice fall was the trigger. No avalanches were reported on Saturday.

Snowpack Summary

Very warm alpine temperatures melted the surface layers on Friday. In areas which had an overnight freeze, a sun crust now exists to ridge top on solar aspects. The mid-January facet layer down 80-150cm seems to be particularly touchy below 1500m where it is shallower and sits on a crust. Wind slabs and large fragile cornices exist in lee and cross-loaded terrain.Total snowpack depths are well above average or even at new record depths for this time of year.

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