Boletín de aludes

Silver Valley & Bitterroot Mountains

Idaho Panhandle Avalanche Center
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Peligro de aludes

Sun
Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
Desactualizado: este boletín caducó 3 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

The snowpack is becoming increasingly stable, but the current precipitation fell on variable surfaces accompanied by enough wind to transport new snow. Today there is potential for small wind slabs at upper elevations in steep terrain on north and east aspects.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1

    Since Friday evening the mountains have received 2-5" of fresh snow under the presence of light southwest winds, with gusts into the teens. Not a real impressive storm, but the new snow will transport easily and may have formed small pockets of wind slab. The new snow is also resting on a variety of sun and wind crusts that will provide a slick bed surface. I would be most concerned about wind slabs above tree line and near ridge tops. Terrain steeper than 35 degrees on north and east aspects are the most likely locations to find and trigger a small wind slab today. If you trigger a small wind slab the concern would be losing control and going for a ride through rocks and trees. Getting buried today is unlikely.

    Small wind slabs on north and east aspects are possible today. 

  • Loose Dry

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1

    The most recent snowfall will shed easily in steep terrain as it is resting on a firm bed surface. Again, not enough to bury a person, but worth keeping in your mind if skiing into steep and narrow chutes. Manage your "slough" in steep terrain, so it doesn't manage you.

Avalanche Discussion

Although our spring snowpack has been stabilizing nicely, as we found on Taft Peak Thursday, the new precipitation that started rolling in Thursday night added new variables. At higher elevations on the north and easterly aspects, small wind slabs are possible with moderate winds predicted to come from the southwest. Pay attention to how the new snow bonds to the former surface – on southerly/westerly aspects with greater solar exposure, the new snow will land on a crust and may not adhere well.

Low temperatures and cloud cover will keep the upper snowpack “locked up” today, meaning typical spring problems are on pause for the time being.

Shaded aspects at upper and mid elevation terrain is where the softest snow was Thursday, and that is where I would venture today.

Winter clearly isn’t over yet, so stay safe and have fun!

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