Severe storms left behind a trail of damage in Clarksville after sweeping through Pennsylvania’s Greene County on Sunday, May 13This video shows a line of trees felled by the winds. According to Patrick Dennison, who shared this video of the damage to his parents’ property, homes, fences, and other structures were damaged in the storm.The National Weather Service had earlier issued thunderstorm warning and watches throughout southwestern Pennsylvania, according to CBS. Credit: Patrick Dennison via Storyful