Boletín de aludes

Banff Yoho Kootenay

Mar 13 – 14, 2015Parks Canada
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Archivado · caducó 12 years ago

Peligro de aludes

Sun
Mon
Alta montaña
3 · Notable
Límite del bosque
2 · Moderado
Bajo el límite
2 · Moderado
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Lo esencial

New snow and intense wind will form windslabs. The hazard will increase throughout the day Saturday as the load increases.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–3
    Snow and high winds Saturday will create poorly bonded windslabs.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    Watch for early morning rain and isothermal conditions on low elevation ice climbs.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    2–3
    The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. This layer has been dormant lately but may waken up with the warm temperatures , rain, or in shallow areas.

Weather Forecast

Poor overnight recovery is expected for Saturday morning below treeline. Then, an intense weather system is expected to pulse through, bringing rain to low elevations and 10-15cm of snow to the alpine. Strong winds accompanying this system will create poorly bonded windslabs on lee (North and East) aspects. Sunday will be cooler.

Snowpack Summary

The snowpack is generally crusty or isothermal in valley bottoms, depending on temperature and exposure to sun. In the alpine windcrusts, windslabs and suncrusts predominate. In high shallow areas, lingering weaknesses are still common.

Avalanche Summary

No new avalanches observed or reported today.

Confidence

Intensity of incoming weather systems is uncertain

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