weather July 31, 2023 6:21 pm How Saturday's downbursts occurred Storm Team4 explains what caused Saturday’s damaging downbursts. Local 2:48 Mapping ragweed hot spots in the DC region: Science 4 Everyone 3:02 Evening weather, Sept. 5 2:24 Old Town Alexandria prepares for possible flooding 3:53 Morning weather, Aug. 8 3:54 Midday Weather: Aug. 7, 2024