Flash Flood — Prince George's, Maryland

2025-07-13 · near Riverdale, Prince George's, Maryland

Event narrative

There was a 6.32 foot rise at NBAM2 (Northwest Branch Anacostia

River at Brentwood, MD) in 45 minutes (1235 PM through

120 PM).

Wider weather episode

Showers and thunderstorms developed early in the afternoon in an anomalously moist airmass along the Chesapeake Bay Breeze and remnant outflow boundaries. These storms remained nearly stationary through the first part of the afternoon producing a quick two to four inches of rain before dissipating.

View location on OpenStreetMap → (38.9445, -76.9552)

Source: NOAA Storm Events Database, event_id 1264199. Narrative written by the NWS forecast office that issued the report.