Bollettino valanghe

Central Sierra Nevada

Sierra Avalanche Center
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Pericolo valanghe

Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
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

New snow with high winds has made wind slab avalanches possible in near and above treeline areas.  LOW avalanche danger will continue in below treeline terrain.  Active weather is forecasted to continue for our area.

Problemi valanghivi

  • Wind Slabs

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

    Strong to gale force SW winds with new snow will allow wind slabs to form in near and above treeline areas.  With limited amounts of new snow, most of these wind slabs are expected to be small in size.  Winds today will slightly shift to the W and remain strong in speed.  These new wind slabs will be forming on a variety of snow surfaces from firm crusts to weak old snow.  Bonding may be limited at the old snow/new snow interface. 

    Look for blowing snow, new cornice formation, and wind pillows.  Hand pits and small test slopes can give you information on how the new wind slabs are bonding to the old snow surface.  Small avalanches in complex terrain or with terrain traps below can still have increased consequences.    

Avalanche Discussion

Observations were received yesterday from Meeks Ridge (West Shore area), Elephants Hump (Carson Pass area), and Red Lake Peak (Carson Pass area).  Snow surface conditions continue to show weak surface rain crusts and near surface facets in mid elevation areas.  These areas will be of concern as we start to load the snowpack with small snow storms over the next week.

Surface hoar has been reported in several areas over the last few days, but appears to be variable in distribution.  It was found yesterday in lower elevation open meadows, but not higher up in steeper terrain on Red Lake Peak. 

Regioni coperte