Boletín de aludes

Jasper

Jan 25 – 26, 2017Parks Canada
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Archivado · caducó 10 years ago

Peligro de aludes

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

Natural avalanche activity appears to be tapering off, but there is still a high degree of spatial variability and low confidence in the stability of the snowpack.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–3
    Main concern is for cross loaded gully features and steep rocky convexities on lee aspects where fresh windslabs are present.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    The weak lower snowpack is susceptible to triggering in lee areas that have been recently loaded by SW winds and last week's snow.

Weather Forecast

No new precipitation on the horizon. Mild temperatures with calm to light Northerly winds. Sunny and clear.

Snowpack Summary

Last week's 20-30cm of rapidly settling and wind distributed storm snow overlies facets and basal weakness. New reactive windslabs in lee gully features and especially on NE aspects. Extensive scouring of last weeks snowfall at and above treeline.

Avalanche Summary

One new size 2.5 slab avalanche out of a steep rock slab at 2300m, East aspect. May have been triggered by cornice fall.

Confidence

Due to the number of field observations

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