Flash Flood — Carroll, Maryland

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

Event narrative

St Paul Road at Muddy Creek closed due to one to two feet of water flowing across 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 → (39.7200, -76.7900)

Source: NOAA Storm Events Database, event_id 1261973. Narrative written by the NWS forecast office that issued the report.