Boletín de aludes

Presidential Range

Mount Washington Avalanche Center
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Peligro de aludes

Sun
Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
Sin grado
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Desactualizado: este boletín caducó 2 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Watch out for small pockets of drifted snow in steep, wind sheltered locations above 3000 feet. Carefully assess or choose terrain with a lower angle and fewer consequences in case of a slide. Watch out for drifting snow late this afternoon and evening to increase the avalanche hazard.

Problemas de aludes

  • Wind Slabs

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

    What and where is it: Three day old small, hard wind slabs on primarily east, southeast and south aspects may remain sensitive to a human trigger due to cold temperatures. The most likely areas to find these slabs will be in wind sheltered areas where they were protected from the recent strong northwest winds. 

    How can you recognize it: The chalky-smooth appearance of many snow surfaces across the ravine is visually consistent, making it difficult to identify these reactive pockets by sight alone. Convex, smooth surfaces are a good clue. Because you may not observe shooting cracks or other clear warning signs, use a ski pole or similar tool to detect changes in snow density that may reveal strong-over-weak wind slabs.

    How can you manage it: Identify and steer around them. Most of these drifted pockets are going to be small and avoidable. Be Conservative: When in doubt, choose terrain with a lower angle and fewer consequences in case of a slide. Remember that even a small avalanche in steep terrain can have serious consequences in areas with obstacles or terrain traps below.

Avalanche Discussion

Be prepared for increasing avalanche hazards with the incoming snow this afternoon and evening. If snow begins to pile up and drift from the southwest winds, adjust your thinking and be looking for new avalanche problems from drifting snow.   

Small, recent avalanches in Right Gully and Raymond’s Cataract can give you an idea of the expected size and location characteristics of lingering hard wind slabs. 

OBSERVATIONS: Please consider submitting an observation of what you are seeing in your travels. Submitting an observation hones your skills, informs other users, and improves our forecasts.

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