Boletín de aludes

Northwest Coastal

Jan 24 – 25, 2013Avalanche Canada
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Archivado · caducó 14 years ago

Peligro de aludes

Sat
Sun
Alta montaña
4 · Fuerte
Límite del bosque
4 · Fuerte
Bajo el límite
3 · Notable

Lo esencial

Local snowfall amounts and winds will drive the avalanche danger. These will be variable across the region. The posted ratings may be a bit high for some areas.

Problemas de aludes

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1–5
    As new snow builds up over the next few days, storm slabs and wind slabs will increase in size and likelihood.

Confidence

Poor - Timing, track, or intensity of incoming weather is uncertain for the entire period

Weather Forecast

Friday: Strong to extreme SW winds. Alpine temperature near -6. 15-30 cm snow overnight Thursday, and 10-25 cm on Friday.Saturday: Moderate SW winds. Alpine temperature near -6. 5 cm snow.Sunday: Moderate SW winds. Alpine temperature near -9. 5-10 cm snow.

Avalanche Summary

Surface sluffs were failing naturally and with skier traffic in steep terrain on Wednesday.

Snowpack Summary

Variable amounts of new snow are building up over a medley of surfaces including hard and soft wind slabs, scoured slopes, blue ice, thin melt-freeze crusts and surface hoar. Winds are likely to shift snow into slabs in the lee of terrain breaks such as ridges and ribs. Two persistent weaknesses (comprising surface hoar and facets) buried in the upper snowpack give moderate to hard, sudden results in snowpack tests. The mid and lower snowpack is generally well settled and strong, although basal facets remain a concern in the north of the region.

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