The weather was forecast to be mild for the weekend and the rain was forecast for Wednesday, but in Georgia, the National Weather Service issued severe thunderstorms.
The forecast was for some of the strongest winds in a couple of weeks, the weather service said.
The storm surge is forecast to reach 15 feet at the Lantana River in the Atlanta area and 30 feet in other areas of the state.
The Atlanta Fire Department issued a flash flood warning and urged residents to evacuate.
Georgia Governor Nathan Deal said on Twitter that the National Guard and other emergency responders were ready to respond to any emergency situation.