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

In sintesi

LOW avalanche danger exists for all elevations and aspects. Isolated areas of instability may exist. Normal caution is advised.

Problemi valanghivi

  • Cornices

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

    A few inches of snowfall across the forecast area today are not expected to create new avalanche problems requiring adjustments to travel techniques beyond normal caution. Some very small wind slabs might form today in the areas of most efficient wind loading. This is generally below cornice features near and above treeline on N-NE-E aspects  Any new wind slabs formed today are expected to have minimal slab depth and minimal down slope development. These slabs are not expected to present a significant hazard to backcountry travelers if normal caution is exercised.

    Simple travel techniques such as exposing one person at a time to avalanche terrain by traveling from one safe zone to another, avoiding stopping in marginal safe zones, avoiding travel above terrain traps, minimizing exposure during uphill travel, and avoiding grouping up in avalanche run out zones are all parts of normal caution. Call out your travel partner if you observe marginal quality decision making in regards to normal caution. They are the person that is supposed to have your back out there at all times.

Avalanche Discussion

Observations made yesterday near Stanford Rock (Ward Canyon area) and near Ebbetts Pass did not reveal any significant signs of instability. Wind slabs that had formed the day before revealed little to no reactivity on test slope sized features. Snowpit data pointed towards some potential faceting around the Dec 24 rain crust on northerly aspects, but snowpit tests showed no problematic failures at this layer interface. Informal observations received from the public on Tamarack Peak (Mount Rose area) and snowpit data received from the public on Castle Peak (Donner Summit area) did not give any indications of snowpack instability in these areas.

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