Boletín de aludes

South Rockies

Mar 18 – 19, 2013Avalanche Canada
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Archivado · caducó 14 years ago

Peligro de aludes

Wed
Thu
Alta montaña
3 · Notable
Límite del bosque
2 · Moderado
Bajo el límite
2 · Moderado
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Lo esencial

The effect of sunshine could cause a spike in avalanche danger on Tuesday.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    Be alert for wind slabs behind ridges and terrain breaks.

  • Loose Dry

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3
    Recent storm snow can slide easily on a buried crust. It may have enough force to trip you up or carry you into a terrain trap.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3
    Be wary of travelling on or below steep slopes which are being warmed by direct sun. Storm snow may fail naturally with the influence of solar radiation.

Snowpack Summary

Up to 50 cm snow overlies a crust, which is supportive to at least 2100 m in most areas. Ridge top winds have been from SW and NW directions, creating pockets of wind slab on a variety of lee and cross-loaded slopes. Deeper in the snowpack, a series of crust layers (or isolated surface hoar) makes up the upper snowpack. The mid-pack is reported to be generally well-settled. Cornices are large and fragile in some areas.

Confidence

Fair - Timing or intensity of solar radiation is uncertain on Tuesday

Weather Forecast

Monday night: Light snow. Strong W winds. Alpine temperature near -16.Tuesday: No snow. Sunshine. Moderate to strong W winds. Alpine temperature near -10.Wednesday: Moderate snow. Strong to extreme SW winds. Alpine temperature near -4.Thursday: Moderate to heavy snow. Light to moderate SW winds. Alpine temperature near -8.

Avalanche Summary

Observations were limited during Sunday's storm, but large avalanches were heard running in steep terrain. Skiers also triggered small soft slabs which failed on the buried crust.

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