Boletín de aludes

Jasper

Mar 17 – 18, 2014Parks Canada
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Archivado · caducó 13 years ago

Peligro de aludes

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

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    Wind slabs can be found on sheltered lee aspects in the alpine and if triggered could step down and release a larger slide.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3
    Where wind slabs overly the February 10th facet layer very touchy conditions exist at tree-line and is borne out by numerous avalanche incidents in the last few days. The frequency of slabs stepping down to a deeper layer has increased dramatically.

  • Loose Dry

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    The 35cm of snow that fell in the last day has been observed to travel far and fast when it fails. Loose snow slides are likely with any solar affect particularly at lower elevations.

Weather Forecast

Cooling trend with a few flurries before the next pulse of snow arrives on Wednesday night.

Snowpack Summary

The Columbia Icefields received 35cm of low density snow over the weekend. Prior to that the alpine was found to be scoured old snow or hard windslabs.

Avalanche Summary

Field patrols today observed the debris of 3 large avalanches from the weekend cycle. Failure layers appeared to be the February 10th layer on one and the basal facets on the other two larger slides which had been triggered by cornice collapse.

Confidence

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