Weather Service Report

FPUS76 KSTO 312224

Short Term Forecast
National Weather Service Sacramento CA
324 PM PDT Sat Jul 31 2021

West Slope Northern Sierra Nevada-
324 PM PDT Sat Jul 31 2021


At 320 PM PDT, Doppler radar indicated a strong thunderstorm about 5 
to 10 miles southwest of Hetch Hetchy, in a very remote area of 
extreme southern Tuolumne County. Dime to penny sized hail, brief 
downpours and dangerous lightning are likely with this cell. 

This cell was part of an area of scattered showers and thunderstorms 
over extreme eastern Tuolumne County and western Alpine County this 
afternoon. Most of the activity has or will push to the east of the 
Sierra Crest, but additional showers and thunderstorms may redevelop 
this afternoon. 

Movement of thunderstorm activity will generally be to the north or 
northeast up to 10 mph. 


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Western Regional Climate Center,