Jul 11, 2012
Nearly stationary to slow moving thunderstorms with heavy rain caused a flash flood in northeast Cobb County late Wednesday night on July 11th through early Thursday on July 12th. The flash flooding primarily occurred in the Sewell Mill Creek and Sope Creek basins and was caused by a greater than 500 year rain event. Just over 6 inches of rain occurred in less than 3 hours.
Source: NOAA National Weather Service Storm Events Database (event 393958). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Cobb County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.