Severe weather July 4, 2024 11:25 am Heat, drought affecting Potomac River contributed to boil water scare Storm Team4 Meteorologist Ryan Miller explains how heat and drought affecting the Potomac River led to a boil water advisory in D.C. and Arlington County. Local 1:43 Arlington water rescue team helps in southwest Virginia after Helene 1:18 Storm Team4's Fall Foliage Forecast 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