Jul 19, 2025
An unstable atmosphere along with plenty of moisture led to the development of showers and thunderstorms. The thunderstorms were slow moving, and trained over the same areas in spots resulting in flash flooding. Rainfall amounts of one to locally four inches were observed in Northwest. Rainfall from the Sligo Creek watershed resulted in a rapid rise along the Anacostia River, while rainfall on the Rock Creek watershed resulted in a rapid rise along Rock Creek.
Source: NOAA National Weather Service Storm Events Database (event 1264728). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in District Of Columbia County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.