Boletín de aludes

Jasper

Nov 19 – 20, 2017Parks Canada
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Archivado · caducó 9 years ago

Peligro de aludes

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

Monitor Sunday's storm for snow amounts increasing the hazard through the day. Plan your travels accordingly.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    Reactive wind slab, 20-30cm deep predominately on exposed alpine and treeline features. Human triggering possible.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–3
    Hazard will increase during the day on Sunday as loading of storm snow arrives. Exact snow amounts are uncertain.

Weather Forecast

20-40cm of storm snow will arrive Sunday afternoon into Monday morning with strong SW winds and -6 to -11. The storm will clear Monday followed by another 20cm storm on Tuesday night. 

Snowpack Summary

Strong SW winds is affecting exposed slopes and ridge tops in the alpine the last 24 hours creating windslabs. Generally a strong, and supportive early winter snowpack exists with depths ranging from 30 to 100+ cm depending on aspect and exposure to wind. The snowpack will change with incoming storm Sunday.

Avalanche Summary

No new natural activity reported from a field team on Saturday. Climbers should still remain vigilant as even triggering a small avalanche in a gully feature or above cliffs can have severe consequences. Expect increased likelihood of avalanches with incoming storm on Sunday.

Confidence

Intensity of incoming weather systems is uncertain on Sunday

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