Flash Flood — Montgomery, Maryland

2025-07-19 · near Kemp Mill, Montgomery, Maryland

Event narrative

Occupied vehicle stuck in high water at Southwood Avenue and Colesville Road. Water rescue ongoing.

Wider weather episode

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. Localized rainfall totals of 2 to 4 inches were observed, with upwards of 5 inches in the most persistent thunderstorms.

View location on OpenStreetMap → (39.0300, -77.0100)

Source: NOAA Storm Events Database, event_id 1264802. Narrative written by the NWS forecast office that issued the report.