ATLANTA — A little more than a week after snow trapped commuters in cars and children on school buses in metro Atlanta, state officials say they overreacted to information from federal forecasters and posted incorrect information on giant message boards over freeways, warning drivers of a new storm watch. The signs flashed late Wednesday and into early Thursday, but the National Weather Service had issued no such watch. "In our desire to proactively inform the traveling public of potential hazardous road conditions, we overreacted to a weather statement from the National Weather Service and incorrectly posted watch and warning messages on our overhead message signs," the Georgia Department of Transportation said in a statement.