National Weather Service officials were in Lexington Sunday to determine exactly what caused the serious damage on Mark Avenue and several other streets in the area. The Highlands neighborhood took the brunt of Sunday afternoon's storm, bringing  Weather Service officials to walk the neighborhood and assess the damage that was left behind. Roofs blown off, car ports lifted off the ground and trees were uprooted after the storm. Joe Sullivan from the National Weather Servicesays it was actually straight-line winds reaching up 95 miles an hour that caused the damage.