Boletín de aludes

Banff Yoho Kootenay

Dec 6 – 7, 2013Parks Canada
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Archivado · caducó 13 years ago

Peligro de aludes

Fri
Sat
Alta montaña
2 · Moderado
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Lo esencial

Cold temperatures are the major factor effecting the snowpack today. The snowpack can be characterized as relatively shallow early season conditions with  a deep persistent basal  weakness. JBW

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    Recent storm snow was moved around by northerly winds and isolated wind slabs can be found on all aspects at and above treeline. Use caution  in steeper wind effected areas.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–3
    The basal weakness of depth hoar or crust is the major weakness in the snowpack and any avalanche will likely fail on, or step down to this layer. Triggering on steep open slopes is still possible.

Weather Forecast

Keep your woolies. It will not really warm up until the weekend.

Snowpack Summary

Very cold temperatures mean not much active is happening in the snowpack. The surface and basal layers will continue to facet.

Avalanche Summary

No new activity. A full depth size 2 release on a steep planar NW feature at 2400m on Copper Mtn was observed yesterday. Likely northerly winds and cross loading across this slope with the coming of the arctic front were the trigger.

Confidence

Due to the number and quality of field observations

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