Boletín de aludes

Kootenay Boundary

Feb 12 – 13, 2012Avalanche Canada
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Archivado · caducó 15 years ago

Peligro de aludes

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

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    3–7
    Large avalanches remain a concern in shallow rocky areas where they could be triggered with a very heavy load, such as cornice fall.

Confidence

Good - -1

Weather Forecast

The strong ridge of high pressure is expected to chew up a weak system that attempts to enter the region Sunday. On Monday, we'll see some mid & high level cloud as said system limps across the province. Winds are expected to be light out of the NW for most of the day. Skies clear overnight Monday. Tuesday starts off cool and cloudy & we may even see the occasional flurry as a weak trough passes over the region. High pressure steps back in around lunch time and should remain in place through Wednesday.Monday:Alpine Wind: NW10Alpine Temp: -7Precip: 2-4 cm in the evening.Freezing Level: sfcTuesday:Alpine Wind: W25Alpine Temp: -3Precip: NilFreezing Level: 1000

Avalanche Summary

Deep persistent slab avalanches remain possible with heavy triggers in shallow rocky snowpack areas on unsupported slopes. Check out the Avalanche Image Gallery under the Library tab for some photos of recent deep persistent slab avalanches in the region.

Snowpack Summary

A thin eggshell/zipper crust formed on the eve of the 9th capping 4 cm of moist snow that rests on top of robust surface hoar created during the recent dry spell. This surface hoar is approx. 30 mm at ridge top and as large as 50mm in valley bottoms. 30cm of near-surface facets can be found on shady slopes while a suncrust has formed on sun exposed slopes. You may still find the odd pocket of wind slab at treeline and above. Concerns remain for the mid-December persistent weakness down around 80-100cm.

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