Boletín de aludes

Jasper

Apr 13 – 14, 2014Parks Canada
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Archivado · caducó 12 years ago

Peligro de aludes

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

Spring conditions - travel early and be off slopes before it warms up.  The Maligne Lake Road is closed but will likely open Monday evening.  Expect delays on the Icefields Parkway late in the afternoon.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    Windslabs are present below ridgelines and on cross-loaded features.  No avalanche activity has been observed on these slabs but field teams have not tested bonding.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2
    A melt freeze crust is present with wet snow beneath. The crust will deteriorate by mid afternoon. Steep solar aspects have the greatest likelihood. 

Weather Forecast

Cold tonight then warm and sunny tomorrow with S winds.  A cool day with flurries is expected Tuesday.

Snowpack Summary

A crust extends from below treeline (TL) to sunny TL aspects. The crust will maintain its strength until it is exposed to prolonged sun and warm temperatures. Wet to moist snow is present below the crust depending on elevation and aspect. Windslabs look thick on all lee alpine and TL slopes. Cornices are large and looming.

Avalanche Summary

Several size 1-2 loose avalanches noted Sunday from alpine to below treeline. They only occurred on the steepest solar aspects and stopped where angle eased. A couple cornice failures were noted in the alpine which did not result in any propagation.

Confidence

Timing or intensity of solar radiation is uncertain on Monday

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