ATHENS, Ala. — A possible tornado has knocked down trees, flipped Dumpsters and damaged the roof of a nearby WalMart in a north Alabama city.

A forecaster at the National Weather Service in Huntsville said the suspected tornado started about a mile south-southeast of Athens and moved in a line toward southwest Ardmore. It struck at about 2 p.m. Friday.

Athens Police Chief Floyd Johnson said that he saw the backside of a wall cloud that had a tail. Police followed as it moved up Route 31 to Interstate 65.

He said a minor injury was reported as a woman rushed to find shelter. Signs at a strip mall and a Zaxby's restaurant were also blown down.

A second tornado was reported in southeast Morgan County about 3:40 p.m., but no reports of damage have been made.