Boletín de aludes

Central Sierra Nevada

Sierra Avalanche Center
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Peligro de aludes

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

Lo esencial

A thin crust of frozen snow may exist on the surface this morning, but sun and warm weather will quickly melt through it, leaving wet loose snow behind. This wet snow could slide down steep slopes and result in avalanches. Once the snow starts feeling wet or mushy, it's time to move away from slopes steep enough for snow to slide down.

Problemas de aludes

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2

    Clear skies last night should have allowed enough heat to radiate into the night sky for the snow surface to refreeze, even though air temperatures did not get very cold. This thin refreeze may not last long in today's sunny warm weather. Once it melts, it will combine with the leftover wet snow below the crust, resulting in a deep layer of wet loose snow.  Wet loose avalanches will be possible. Long steep slopes can produce larger wet snow avalanches, but smaller wet loose avalanches can still have consequences in areas with terrain traps like cliffs or creeks. Today's warm weather may also weaken some of the remaining cornices that still exist near ridgelines. 

    The window for supportable snow conditions may be short today, and conditions will change quickly. Pay attention to the terrain and conditions as you travel. Clues like sinking into boot-top deep wet snow, roller balls, and pinwheels can indicate larger, wet loose avalanches may soon occur. Once the snow starts feeling wet and mushy, it's time to move away from avalanche terrain. 

    (4/15/2024)

    This small skier-triggered wet loose avalanche likely occurred on April 12th.

    Photo: Sierra Avalanche Center

Avalanche Discussion

The last avalanche forecast for the 2023-2024 season will post on April 21st. Thank you to all who contributed to the avalanche center this season through observations, volunteer time, and/or financial contributions.

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