Flash Flood — Carroll, Maryland

2025-07-09 · near Sykesville, Carroll, Maryland

Event narrative

Parts of West Friendship Road from River Road to the bridge over South Branch Patapsco River has 6 to 12 inches of water flowing over the road.

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 → (39.3600, -76.9700)

Source: NOAA Storm Events Database, event_id 1261970. Narrative written by the NWS forecast office that issued the report.