Boletín de aludes

Jasper

Dec 29 – 30, 2019Parks Canada
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Archivado · caducó 7 years ago

Peligro de aludes

Mon
Tue
Alta montaña
3 · Notable
Límite del bosque
2 · Moderado
Bajo el límite
2 · Moderado

Lo esencial

Reports of great ski quality may tempt you to push into bigger lines.  The current snowpack is variable and weak with new windslabs creating further hazard.  Ski conservatively!

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2.5

    SW moderate winds continue to develop windslab on lee slopes.

  • Loose Dry

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–1.5

    Caution Ice climbers in confined features with steep walls holding dry loose snow

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–3

    Whumphing observed on this weakness observed below treeline.  Large loads may trigger it.

Weather Forecast

Clear, warming and light winds expected Sunday.  Temperatures falling with increasing westerly winds and light flurries forecast for the beginning of the week.

CAA's Mountain Weather Forecast for more specific details.

Snowpack Summary

6-25mm Surface Hoar growing up to 2200m. Consistent Moderate SW winds for the past 48 hours have created wind slabs in lee features. These overlies a mosaic of buried wind slabs and facetted weak layers. Basal layers continue to develop into larger facets and depth hoar.

Avalanche Summary

No new observations along the Icefields Parkway or Maligne Road today.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Monday

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