Boletín de aludes

Banff Yoho Kootenay

Apr 22 – 23, 2013Parks Canada
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Archivado · caducó 13 years ago

Peligro de aludes

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

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2
    Moderate winds have created areas of thin wind slabs in open areas above 2200 m. These slabs were more sensitive to triggering on southerly aspects where they overlie a smooth crust, but are also a concern on northerly aspects.

Weather Forecast

Mixed sun and cloud is for Tuesday and Wednesday with some isolated flurries on Tuesday. Freezing levels will be around 1800 m with good recovery overnight.

Snowpack Summary

Cooler conditions should keep the crust solid for much of the day. Recent snow has created wind slabs just below ridge crests up to 30-40 cm thick. These slabs have been more touchy on southerly aspects where they overly a crust, but could be triggered on northerly aspects as well. Solar effect will loosen up the recent new snow on steeper terrain.

Avalanche Summary

Several small skier triggered windslabs up to size 1.5  have been reported over the last few days. These have been triggered on steep terrain just below ridgecrests. Storm snow over crust is the main ingredient.

Confidence

The weather pattern is stable

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