Special Weather Statement issued July 10 at 2:56PM EDT by NWS

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN NASSAU AND NORTHEASTERN DUVAL COUNTIES UNTIL 345 PM EDT... At 255 PM EDT, Doppler radar was tracking a strong thunderstorm over Yulee, or 8 miles southwest of St. Marys. This storm was drifting northeast. Excessive cloud-to-ground lightning and wind gusts of 40 to 50 mph

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2uJDu31