Bollettino valanghe

Central Sierra Nevada

Sierra Avalanche Center
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Pericolo valanghe

Mon
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato
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Non aggiornato — questo bollettino è scaduto last year. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

This morning's crusty snow will get wet and mushy as the day warms up, and wet loose avalanches will become possible. Once the snow feels wet or mushy, it's time to move away from slopes steep enough to avalanche. 

Problemi valanghivi

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    The strong April sun and warm weather should melt through the refrozen crusts that formed on the snow surface last night. Once this happens, wet loose avalanches will become possible. Wet snow will form on slopes that get morning sun first, then progress to other slopes as the sun moves across the sky. Due to the high sun angles and warm temperatures, wet snow may form on any aspect and at any elevation today. Wet loose avalanches could entrain enough snow to knock a person over or push them into a terrain trap that magnifies the consequences of an avalanche. On long, steep slopes, wet loose avalanches could grow larger since they gather more snow as they slide downhill.

    Monitor the snow conditions as the day warms up. Sinking into boot-top deep wet snow, roller balls, and pinwheels can indicate larger, wet loose avalanches may soon occur. Once the snow feels wet and unsupportable, it's time to move away from avalanche terrain onto less steep slopes.

    (4/3/2025)

    Natural wet loose avalanche off of rocks on an East aspect. Ran several hundred feet with a large debris pile, approaching D2 in size.  Porcupine Ridge

Avalanche Discussion

While triggering a wind slab avalanche has become unlikely in most of the forecast area, a few areas may still hold enough wind-blown snow for a small wind slab failure. In most places, these would remain small and inconsequential, but they could have consequences in more extreme terrain. 

Regioni coperte