Bollettino valanghe

Central Sierra Nevada

Sierra Avalanche Center
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Pericolo valanghe

Fri
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 8 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

You could trigger an avalanche today in places where wind drifted snow has or is filling in near ridgetops and into gully features. Move cautiously around areas where visible blowing snow is accumulating. Consider opting for wind protected, forested slopes for less avalanche hazard and increased potential for softer snow surface conditions.

Problemi valanghivi

  • Wind Slabs

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

    Expect the location of wind slab to change as the day progresses. Identifying the slopes of concern will require identifying where blowing snow associated with shifting winds has filled in near ridgetop and gully features. Use clues such as visible blowing snow, scoured vs smoother snow surfaces, and snow surface cracking to identify slopes of concern. Exercise caution around slopes that appear to hold newly formed wind slab. While mostly small avalanches are expected today, avalanches large enough to bury or injure a person are possible in isolated areas.

    New snow amounts of 1 to 6 inches over the last 24 hours varied significantly by location rather than by elevation. This will have a direct effect on the presence or absence of unstable wind slabs today for any given location. The shift in wind direction from W to NE will redistribute new snow on the ground today, especially as wind speeds increase out of the NE as the day progresses. This morning, anticipate encountering fresh wind slabs focused mostly on N-NE-E-SE aspects from last night's W winds. Once increasing NE winds are scouring and redistributing snow on the ground, expect the focus of wind slab instability to gradually shift to SW-W-NW-N aspects. 

    (1/2/2026)

    Either read the snow surface clues today or use wind protected terrain below treeline as a strategy to avoid the avalanche problem.

    This photo shows rougher wind scoured areas vs smoother areas filled in with wind slab.

    Steven's Peak, Carson Pass area, CA

    Photo: Sierra Avalanche Center

Avalanche Discussion

An avalanche fatality occurred near Castle Peak on the afternoon of Monday, January 5th.  Our condolences go out to the victim's family and friends and all those affected by this tragic accident.  Forecasters from the Sierra Avalanche Center visited the scene on Jan 6th. More info on the accident is available here.

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