Staff Sgt. Corey Winchester, 633d Civil Engineer Squadron pavements and equipment craftsman, works to clear a fallen tree after a storm at Langley Air Force Base, Va., May 24, 2011. Civil engineers worked quickly to clear trees and other debris after a storm that produced heavy rains and wind gusts in excess of 50 knots. (U.S. Air Force photo by Tech. Sgt. April Wickes)(RELEASED)