weather August 24, 2023 4:47 pm Rainbows: How the optical phenomenon occurs Storm Team4 Meteorologist Jessica Faith explains the unique conditions needed to see the optical phenomenon of rainbows. 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