The city of Jacksonville experienced record-breaking flooding on September 11. A Flash Flood Emergency was issued for the St. Johns River.
— WeatherNation (@WeatherNation) September 11, 2017
Residents along the river were warned to expect another four to six feet of flooding as the tide came in later that day.
A flash-flood warning remained in place for the area. The warning came as the National Hurricane Center downgraded Irma to a tropical storm, with maximum sustained winds of 70 mph.