Special Weather Statement issued September 12 at 5:25PM PDT by NWS

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL PLUMAS...EASTERN BUTTE...NORTHWESTERN SIERRA AND NORTHEASTERN YUBA COUNTIES UNTIL 615 PM PDT... At 524 PM PDT, a strong thunderstorm was located near La Porte, or near Downieville, moving northwest at 30 mph. Winds in excess of 30 mph and dime size hail are possible with this

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2vSkorP