Boletín de aludes

Central Sierra Nevada

Sierra Avalanche Center
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Peligro de aludes

Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Desactualizado: este boletín caducó 12 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Avalanche danger remains LOW for all elevations and aspects. Isolated small loose wet avalanches remain a possibility again today on all aspects at all elevations on slopes 37 degrees and steeper. Normal caution is advised.

Problemas de aludes

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1

    Isolated natural but mainly human triggered loose wet avalanche activity remains possible today as the recent storm snow continues to transition to melt-freeze. With mid and upper elevation air temperatures well above freezing at sunrise, any overnight snow surface refreeze that occurred last night will quickly return to melt phase. Wet snow instability will be possible during the morning hours, increasing as the day progresses. The majority of instability is expected to continue as roller balls and pin wheels with actual loose wet avalanches a more isolated occurrence. Avalanche size is expected to remain small and could occur on all aspects at all elevations.

Avalanche Discussion

Observations made yesterday on the east ridge of Relay Peak (Mount Rose area) at the site of the Feb 8 snowmobile triggered avalanche continued to show increasing snowpack stability. The low density layer of rounding faceted snow crystals at the base of the recent storm snow that was the failure layer in this avalanche was no longer reactive to snowpit tests. This matches well with recent observations over the past few days, leading to a removal of the persistent slab avalanche problem from the advisory.

Surface wet snow was widespread yesterday on all but shaded true N aspects up to at least 10,300'. One recent loose wet avalanche was noted on a NE aspect off the west ridge of Relay Peak at 9,800'. This was the only loose wet avalanche noted within the greater area with minor roller ball activity visible on several sun exposed slopes on a variety of aspects.

Regiones cubiertas