Flash Flood — Prince George's, Maryland

2025-07-09 · near Brentwood, Prince George's, Maryland

Event narrative

Allison Street at 38th Street closed near the Northwest Branch Anacostia River for water flowing over the road at least six inches deep.

Wider weather episode

An anomalously moist airmass ahead of a frontal boundary sparked numerous showers and thunderstorms across Maryland. Instantaneous rain rates approached five to six inches an hour in the bigger storms. Storm total rainfall of one and a half to four inches resulted in flooding and flash flooding in areas throughout the evening of July 9th.

View location on OpenStreetMap → (38.9494, -76.9617)

Source: NOAA Storm Events Database, event_id 1262007. Narrative written by the NWS forecast office that issued the report.