Boletín de aludes

Central Sierra Nevada

Sierra Avalanche Center
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Peligro de aludes

Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
2 · Moderado
Desactualizado: este boletín caducó 7 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Rain and snow will impact our forecast area today.  MODERATE avalanche danger will exist due to wind slab and loose wet avalanche problems.  Human triggered avalanches will be possible.

Problemas de aludes

  • Wind Slabs

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

    Strong SW winds with additional snow will allow wind slabs to form on NW-N-NE-E-SE aspects in near and above treeline terrain.  Most wind slabs today should be small in size due to limited available snow for wind transport.  In efficient wind loading areas that receive the most new storm snow, wind slabs could be large enough to be problematic for backcountry users. 

    Look for blowing snow, new cornice development, and wind pillows.  Make a plan to avoid suspect wind loaded areas.

  • Loose Wet

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

    Loose wet avalanches will be possible today on all aspects in near and below treeline terrain.  As daytime warming occurs along with rain at lower elevations, loose wet avalanches involving the recent storm snow are expected.  Most of these loose wet instabilities will be small in size and in the form of roller balls and pinwheels, but some could become larger and involve older wet snow. 

    Wet and unsupportable snow will be capable of loose wet avalanches today.  Use terrain to help limit exposure and avoid overhead hazards.

Avalanche Discussion

*  Warm and wet conditions were reported from Rubicon Peak (West Shore area) yesterday.  Cloudy skies overnight, above freezing temperatures, and light rain provided no refreeze of the snowpack with wet surface snow from the trailhead to the peak top.  Avalanche instabilities were limited to small roller ball activity into the midday.

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