Graupel deposits in Hammil Bowl

Hammil Bowl
Submission Info
Sunday, February 21, 2021 - 7:00am
Hammil Bowl 37° 34' 20.1072" N, 119° 0' 9.9684" W
Snowpit Observations
More detailed information about the snowpack: 

It was a bluebird day touring up to Hammil Bowl.  We observed scattered deposits of graupel along the skin track on the surface throughout the day. Around 10,000 ft below Hammil bowl, we found larger pockets of graupel about 5 to 6 in deep underneath a 3in supportable windslab above. In the bowl around 10,560 ft, we dug a few handpits in different locations. Graupel pockets were from 4 to 7 in with the windslab layer above ranging from 2 to 6 inches.  The 6 in windslab sheared off immediately.  50 ft higher where the slope angle steepened, there was no graupel. There were no signs of propagation in testing the stability of the snow.  Although one party of skiers recently skied the bowl with no issues, we transitioned at our point of observation and skied out of the bowl.  These dispersed pockets of graupel could be a concern for new snow weighting the windslab above it.

Snowpack photos: 
Weather Observations
Air temperature: 
Above Freezing
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Air temperature trend: 
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