Boletín de aludes

South Coast Inland

Apr 14 – 15, 2017Avalanche Canada
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Archivado · caducó 9 years ago

Peligro de aludes

Sun
Mon
Alta montaña
2 · Moderado
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Lo esencial

The next big change is on Sunday: Sunny warm weather will be the driver of avalanche problems.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    Shifting wind directions have created fresh wind slabs on a variety of aspects.

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3
    Recent snow and wind are growing already large cornices. Minimize your exposure to cornices when it is cold and cloudy and completely avoid them when it is warm and/or sunny.

Confidence

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

Weather Forecast

The clouds will clear out Saturday afternoon, giving way to pleasant weather on Easter Sunday. Back to moist spring weather on Monday. SATURDAY: Isolated flurries (3-5cm possible) and occasional sunny breaks. Freezing level around 1500 m. Winds light northerly.SUNDAY: Clearing with some good sunshine. Freezing level rising to 1800 m in the afternoon. Winds light southerly. MONDAY: Snow (5-10cm) above 1700m. Winds 20-30 km/h from the south.

Avalanche Summary

On Thursday, skiers in the north of the region were able to trigger a Size 1.5 wind slab on a steep north facing aspect near 2100m.Expect avalanche activity to increase with the warm weather on Sunday.

Snowpack Summary

Relatively light amounts of recent snow (5-15 cm in the past two days) and moderate southerly winds have created wind slabs in the immediate lee of exposed terrain features at treeline and above. On Sunday the sun will come out in full force - it's a good time to remember that cornices remain large in some areas and could trigger large avalanches when they fail (especially when warmed by the sun). The fatal accident near Lions Bay a week ago illustrates the danger of cornices breaking off, and the large avalanches they can trigger.

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