Boletín de aludes

Cariboos

Jan 22 – 23, 2012Avalanche Canada
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Archivado · caducó 15 years ago

Peligro de aludes

Tue
Wed
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
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Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Very Likely
    Tamaño
    2–6
    The new snow is expected to be transported into new windslabs. The snow pack may develop a stiffer layer above lighter drier snow as the temperature increases during the storm.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    2–6
    The snow pack may develop a stiffer layer above lighter drier snow as the temperature increases during the storm. If this slab develops, we expect that it will be easily triggered and may run fast and far.

Weather Forecast

Flurries on Sunday evening and Monday morning should become snow by Monday evening. Gusty southerly winds are expected to become moderate southwest at ridgetops by Tuesday morning. During the day Tuesday the wind is forecast to build to strong from the southwest, freezing levels should rise to about 1000 metres and new snow should accumulate up to 20 cm. Unsettled weather bringing flurries and periods of snow are expected for Wednesday.

Avalanche Summary

No new avalanches reported. Suspect due to limited visibility and travel on Saturday.

Confidence

Fair - Freezing levels are uncertain on Tuesday

Snowpack Summary

The new storm has developed a thick blanket of dry light snow above the cold dry surface. If this new storm warms up a bit, expect a storm slab to consolidate above this cold relatively weak layer. Watch for new windslabs developing due to forecast strong southwest winds. Some surface facetting during the recent cold spell. Strong temperature gradient in the top 30 cm. Stiff windslabs have developed in the alpine and at treeline. Some areas reporting a crust that is now buried by about 50 cm of cold dry light snow. Strong well settled mid-pack. Cornice structures are weak and have been growing fast, and falling off!

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