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 7 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Firm snow conditions are expected in many areas with some locations softening throughout the day.  Sliding falls on firm snow remain a hazard.  LOW avalanche danger continues with normal caution advised.

Problemi valanghivi

  • Cornices

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

    Below freezing temperatures with mostly clear overnight skies should have allowed for another solid refreeze of the snow surface.  Cool temperatures with light to moderate SW winds today should limit snow surface melt in many areas.  Firm and variable snow conditions will be present on many aspects and elevations.  Wet snow instabilities are expected to be minor and not pose a concern for backcountry users today.  The best chances to find soft snow will be at mid to lower elevations on southerly aspects.  Wind protected areas around rocks and gully features may help to encourage additional snow surface softening.

    Sliding falls in steep and exposed terrain on firm snow continue to be a major hazard.  Make sure your group comes up with a tour plan and chooses appropriate terrain for the current conditions. 

Avalanche Discussion

A strong refreeze of the snow surface was reported from Relay Peak (Mt. Rose area) yesterday.  Challenging firm snow conditions were reported with ski crampons used to gain access to upper ridgetops.  Some corn snow was found in below treeline wind protected terrain on south aspects by midday. 

Observations from Mt. Judah (Donner Summit area) saw mostly firm and variable snow surface conditions throughout the day.  By 2pm, some soft snow existed below the ridgeline in more wind protected terrain.

No loose wet avalanches have been reported for the past week.

Regioni coperte