Bollettino valanghe

Central Sierra Nevada

Sierra Avalanche Center
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Pericolo valanghe

Alta quota
1 · Debole
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 12 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

LOW avalanche danger exists at all elevations and on all aspects. Continue to use normal caution when traveling in the backcountry.

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    1

    Some areas of shallow, soft, and wet surface snow may form today on the sun exposed aspects. However, cooler daytime highs, continued light east winds, last night's strong refreeze, and the fact that the snowpack has already been through several extended melt-freeze cycles will all work to prevent large wet snow instabilities from forming today. While unlikely, some isolated small roller balls, small pinwheels, and small loose wet snow slides are not impossible on the most sun-exposed low to mid elevation SE-S-SW aspects. If any of these instabilities do occur today, they should not entrain very much snow nor should they present a significant hazard to backcountry travelers.

Avalanche Discussion

Yesterday on Incline Lake Peak between 8300 and 9600 ft. enough melting occurred for 1 to 4 inches of soft wet snow to form on the surface of the E-SE-S-SW aspects by 2 pm. This wet surface snow existed on top of layers of mostly frozen melt freeze snow that easily supported a skier's weight. Observations in this area did not produce any signs of wet snow instabilities prior to 3 pm. Data and observations from the more sheltered and shaded northerly aspects revealed a stable snowpack capped with variable surface conditions ranging from crusts, to wind scoured surfaces, to small patches of softer snow.

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