Flash Flood — Montgomery, Maryland

2025-07-19 · near Takoma Park, Montgomery, Maryland

Event narrative

The stream gage on Sligo Creek at Takoma Park rose to flood stage, which is at 5.5 feet, rapidly in less than an hour. The gage then crested at 7.52 feet shortly thereafter. This was a little over a 6 foot rise in just over an hour.

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 → (38.9900, -77.0100)

Source: NOAA Storm Events Database, event_id 1264798. Narrative written by the NWS forecast office that issued the report.