Boletín de aludes

Jasper

Dec 17 – 18, 2012Parks Canada
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Archivado · caducó 14 years ago

Peligro de aludes

Mon
Tue
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
    1–3
    Pockets of wind slabs that vary in hardness are present on all open lee slopes. No new avalanches have been observed  in the last week, and field tests show that these slabs have bonded well in most locations.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    2–3
    The November raincrusts are deteriorating into a facet layer that is not responding to field tests at this time. 

Weather Forecast

A frontal system is expected to come through on Monday with a slight rise in temperatures and only limited snow flurries. Ridgetop winds will increase to moderate/strong starting from the South and shifting to the West by late afternoon. Tuesday will have sunny periods with cooler temperatures.

Snowpack Summary

There is great variation in depth and location of the wind slabs. These slabs appear to have bonded well to the old snow surface, with no new avalanches observed in the last week. Cornices are well developed. The raincrust laminate down in the lower 1/3 of snowpack is deteriorating into a facetted layer and did not respond to field tests. 

Avalanche Summary

No new avalanches have been observed since Monday Dec 10.  Wind slabs appear to have bonded well to the old snow surface.

Confidence

Regiones cubiertas