ATLANTA — Severe weather rolled through Alabama, Georgia and Florida overnight with a suspected tornado injuring several people in southwest Georgia, authorities said Thursday. Two people were seriously injured when a trailer home was destroyed in Dickey, in Calhoun County, National Weather Service meteorologist Jeff Fournier said. They had to be taken to a hospital but were conscious. He said several other people received less serious injuries when trailer homes were overturned in Edison, also in Calhoun County. A number of trees and power lines also were down in the area after the storm swept through. It’s almost certain that the damage was caused by a tornado, Fournier said.