Boletín de aludes

Banff Yoho Kootenay

Mar 15 – 16, 2013Parks Canada
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Archivado · caducó 14 years ago

Peligro de aludes

Sun
Mon
Alta montaña
4 · Fuerte
Límite del bosque
3 · Notable
Bajo el límite
3 · Notable
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Lo esencial

Touchy conditions will prevail over the next few days. Wise, conservative terrain choices will treat you well.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3
    Strong W winds are developing wind slabs on lee aspects and will be sensitive to human triggering.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3
    40-60cm storm slabs are poorly bonded to older surfaces. Touchy conditions at all elevations.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3
    Rain to 1900m has created unstable conditions below tree-line. This will stabilize with cooling temp's, but one will need to be patient and wait for the cooling.

Weather Forecast

A cooler and still moist westerly air mass will move across the regions on Saturday. Expect light flurries bringing up to 5cm tomorrow, another 5cm on Sunday, along with moderate westerly winds. Temp's should drop significantly by late Sunday.

Snowpack Summary

40-60cm of storm snow has fallen in the last 2 days, with higher amounts observed west of the Divide and up Hwy 93N. Storm slabs have formed on the surface and are bonded poorly to the older surfaces. Below tree-line, the rain saturated surface layers should start to stabilize with the decreasing temp's tomorrow afternoon.

Avalanche Summary

Still a lot of natural activity observed today, especially below tree-line in Yoho and in steeper, rocky terrain. Loose, moist size 1-1.5's observed below tree-line. Visibility into the alpine was poor once again, but moderate to strong winds were transporting the new snow and likely creating natural avalanches.

Confidence

Due to the number of field observations

Regiones cubiertas