Avalanche

Schallenberger Ridge

Steve ReynaudCentral Sierra Nevada
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Quick report

Cracking
widespread

We ran into road closures and unplowed trailheads again this morning and chose to go to Schallenberger Ridge.  Widespread cracking occurred while skinning in the top 8 inches of recent storm snow on all aspects traveled.  This storm slab instability appeared to be a graupel layer in the recent snow that may have had some needles mixed in.  Trail breaking was deep, with snow settlement occurring slowly with the cold temperatures.  We dug a snowpit on the ridge at 6600'.  The storm snow is mostly right side up with over 5 feet of new snow since Sunday night.  

Weather

Air Temp
Below freezing
Cloud Cover
overcast
Wind Loading
light
Recent Snowfall
40
Snow Avail For Transport
large amounts

Snowfall at 2 inches/hour this morning with moderate to strong SW winds at our high point on the exposed ridge just below 7000 feet.

Avalanche

Size
D1
Aspect
N
Trigger
N
Elevation
6800 ft

We observed widespread storm slab cracking while skinning and saw 2 small natural storm slab avalanches that occurred on small steep rollover features. Our tour involved travel on well under 30 degree terrain with limited visibility to any steeper areas.