Boletín de aludes

Northwest Coastal

Apr 9 – 10, 2017Avalanche Canada
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Archivado · caducó 9 years ago

Peligro de aludes

Tue
Wed
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Lo esencial

Cornices remain the primary concern. Solar radiation is a common cornice trigger. Limit your exposure when it's cloudy and completely avoid cornices when it's sunny.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    New snow and moderate southerly winds may have formed thin wind slabs in lee features below ridgetops on Saturday into Sunday.

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3
    Large cornices may become weak with daytime warming and have potential to trigger slabs on the slopes below.

Confidence

Moderate - Timing, track, or intensity of incoming weather system is uncertain

Weather Forecast

Unsettled weather continues throughout the forecast period. MONDAY: Mix of sun and cloud with isolated flurries (2-5cm). Light southeasterly ridgetop winds. Freezing level around 1400 m.TUESDAY: Scattered flurries (5-10cm) . Light northerly ridgetop winds. Freezing level around 1200 m.WEDNESDAY: Mix of sun and cloud with isolated flurries (2-5cm). Strong easterly ridgetop winds. Freezing level around 1400 m.

Avalanche Summary

No new reported on Saturday.

Snowpack Summary

Small amounts of new snow (up to 8cm) fell on Saturday with light to moderate southerly winds. The new snow will likely be sitting on hard surfaces created by strong winds earlier in the week, or melt-freeze crusts below 1400m. A weak layer of facets and crusts from late February are buried 100-120 cm down. The layer has been unreactive recently and has a variable distribution. That said, rapid warming of the snowpack or a large trigger, such as a cornice, may still have the potential to trigger it.

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