Flash Flood in Carroll County, Maryland
Flash Flood July 31, 2025 · Carroll County, Maryland
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Thirteen year old boy swept into storm drainage in the 200 Block of Watersville Road in Mt Airy.
The wider storm
A slow moving cold front combined with a highly unstable atmosphere along with tropical moisture to produce slow moving thunderstorms with heavy rainfall. Some of these storms trained over the same areas, resulting in scattered to numerous instances of flash flooding. Total rainfall amounts in areas with flash flooding averaged two to four inches, though some localized amounts up to six inches were observed.
Began near Mt Airy (39.3803, -77.1440).
Source: NOAA Storm Events Database, event 1270242. Narratives are written by the National Weather Service forecast office that issued the report.
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