The thunderstorms that swept through the region June 29-July 1 damaged several residences on board Naval Support Facility (NSF) Dahlgren. Trees and branches were blown down, windows broken and shingles stripped from roofs. Danny Brown, operations manager for the Brickman Group, observed the damage firsthand. "You've got 100-year old trees on this base," he said. "We were pretty lucky; it could have been a whole lot worse."