Boletín de aludes

Banff Yoho Kootenay

May 5 – 6, 2014Parks Canada
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Archivado · caducó 12 years ago

Peligro de aludes

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

The snow is deep! 45 cm of storm snow has fallen, making excellent powder conditions on shaded slopes. Sun exposed slopes got baked today (only takes 5 minutes), so expect some breakable crust. We'll need a few days for a melt/freeze cycle to return.

Problemas de aludes

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    The 45 cm of recent storm snow will turn moist almost immediately when touched by the sun. Expect this to result in loose, wet snow avalanches occurring as soon as the day begins to warm up.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–3
    This problem persists, and today we experienced a large settlement when we walked through a shallow snowpack area.  We still have respect for large alpine slopes that did not produce an avalanche yet this winter.

Weather Forecast

The storm is over. Expect a mix of sun and cloud for Tuesday, with temperatures remaining below seasonal normals - high for Tuesday is -3 in at treeline. This pattern will continue, with a nice week ahead of sun/clouds and cool air. No precipitation is expected in the next few days. Wednesday looks to be the best day of the week.

Snowpack Summary

Another 5-10 cm of low density fluff fell on Sunday night, bringing the total storm snow accumulation to 45 cm. This snow is becoming moist on all but north aspects and below 2400 meters, and a few cycles of melt/freeze will be needed before the surface forms a strong crust again. Below this is a weak crust from last week, and moist snow below.

Avalanche Summary

Small loose snow avalanches were observed today running from rocks on south aspects.

Confidence

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