Boletín de aludes

Lizard-Flathead

Dec 29, 2016Avalanche Canada
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Archivado · caducó 10 years ago

Peligro de aludes

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

The wind has a lot of new snow to whip up into fresh wind slabs. I recommend caution in wind affected areas.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    Expect fresh wind slabs to form at higher elevations as winds pick up and redistribute loose snow.

Confidence

Moderate - Wind speed and direction is uncertain

Weather Forecast

THURSDAY: Mostly dry with some sunny breaks. Ridgetop winds southwest 40-60 km/h. Treeline temperatures rising to around -4C after a cold morning. FRIDAY: Mostly dry and clear. Winds becoming light westerly. Temperatures around -4C.SATURDAY: Flurries in the afternoon. Moderate southwesterly winds. Temperatures around -8C.

Avalanche Summary

On Tuesday, new storm snow produced numerous size 1.5-2.5 avalanches, including natural and skier-triggered loose dry and storm slab avalanches on north and east aspects. On Wednesday, explosive control continued to release storm slabs, but they remained relatively small (up to size 2).

Snowpack Summary

Quite a lot (up to 50 cm) of recent low density snow has fallen, which is now available to be redistributed by mostly moderate southwesterly winds. The new snow sits above a variety of surfaces including old hard wind slabs and surface hoar. The cold weather in early December left several layers of weak surface hoar and facets which are now buried 50-80 cm deep. These layers have been inactive for the past week, as it appears the lower snowpack is well-settled. A thick crust rain crust from mid-November is near the bottom of the snowpack and remains well bonded to the surrounding snow.

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