Bulletin d’avalanche

Central Sierra Nevada

Sierra Avalanche Center
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Danger d’avalanche

Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Périmé — ce bulletin a expiré 7 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

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.

Problèmes avalancheux

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    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.

Régions couvertes