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
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Desactualizado: este boletín caducó 8 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

MODERATE avalanche danger will exist as daytime warming occurs and a loose wet avalanche problem develops at all elevations.  Unstable snowpack conditions can quickly form as snow becomes unsupportable and loses strength.

Problemas de aludes

  • Loose Wet

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

    As daytime warming occurs, loose wet avalanches will become possible on E-SE-S-SW-W aspects at all elevations.  As the day progresses, loose wet avalanche instabilities will also spread to NW-N-NE aspects.  Clear overnight skies with near freezing temperatures should provide a fairly good snow surface refreeze in most areas.  In areas at lower elevations, places with a thin snowpack, areas around rocks and trees, and densely treed areas, the snow surface refreeze may be limited or nonexistent.

    Measuring boot and/or ski penetrations are good ways to constantly monitor the snow surface and supportability throughout the day.  Avoid avalanche terrain where natural or human triggered roller balls are occurring.  Unstable snowpack conditions can quickly develop as the snow loses supportability and strength.

Avalanche Discussion

* Snow surface conditions were mostly smooth with good supportability above 8000' on Mt. Tallac (Desolation Wilderness area) at midday yesterday.  Areas below 8000' on E/SE aspects, were mostly unsupportable wet deep snow just after 12noon.  Small skier triggered loose wet avalanches occurred in steeper terrain in these areas of unsupportable snow.

* A party reported fully unsupportable snow conditions on Silver Peak (Pole Creek area) yesterday.  No refreeze was observed with unsupportable snow conditions consistent to the summit high point of 8200' back down to the trailhead at 6200'.

Regiones cubiertas