Bollettino valanghe

Kootenay Boundary

Dec 30 – 31, 2012Avalanche Canada
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Archiviato · scaduto 14 years ago

Pericolo valanghe

Tue
Wed
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–4
    Wind slabs may be found behind ridges, ribs and gully walls. In specific thin snowpack areas, it may be possible for a wind slab to trigger a failure on a deeply buried weak layer.

Confidence

Good

Weather Forecast

Monday-Wednesday: Expect benign weather with light winds, alpine temperatures around -5 and no precipitation.

Avalanche Summary

 Small skier-triggered wind slabs and loose snow sluffing have been reported.

Snowpack Summary

Wind slabs may be found behind terrain breaks such as ridges, ribs and gully walls. A generally settled upper snowpack overlies the late November surface hoar, buried down 115-130 cm. Recent test results are inconsistent, but an avalanche failed on this layer in the Rossland Range on Christmas Eve. A deeply buried crust/facet layer near the base of the snowpack is considered dormant. Although unlikely, there is a lingering possibility of triggering a deep avalanche, especially from thin snowpack areas.

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