Boletín de aludes

Waterton Lakes

Jan 19 – 22, 2016Parks Canada
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Archivado · caducó 11 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

Forecasters are keeping a keen eye out for activity on a weak layer buried in the upper snowpack, and you should too! Let us, and everyone else know if you see anything interesting: submit to the Mountain Information Network, at www.avalanche.ca.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    These Wind Slabs are widespread, but generally stubborn at treeline. However, they may be touchy and propagate widely where they sit directly on a weak layer of suncrust/facets/surface hoar buried during early January. Avoid obviously loaded slopes.

Weather Forecast

Generally little change from our current weather through the next three days (with one exception...read on) ... sun/cloud to mainly cloudy, Moderate to Strong W-SW winds, and mild temperatures. Wednesday morning is the exception... current forecasts predict anywhere from 2-10cm of snowfall, along with a temporary drop in windspeed and temperatures.

Snowpack Summary

30cm of recent snowfall has made for great skiing below treeline. Strong SW-W winds have redistributed this to form Wind slabs on lee / cross loaded slopes. Down 30-45cm lies a weak layer of Facets and large Surface Hoar on shady aspects, or 1-2cm of sun crust on solar aspects. The new snow appears to be bonding well to this layer below treeline.

Avalanche Summary

Several Natural Wind Slab and Loose Dry avalanches were observed from N and E aspects in the Alpine during the past 36 hours, upto Size 1.5. New glide cracks have been noted in alpine terrain on the South aspect of Mt Carthew, adjacent to exposed rocks.

Confidence

Intensity of incoming weather systems is uncertain on Wednesday

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