Flash Flood in Allegany County, Maryland
Flash Flood May 13, 2025 · Allegany County, Maryland
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Numerous reports of flooding along Kreighbaum Road in Corriganville due to Jennings Run coming out of it's banks.
The wider storm
A slow moving closed upper level low originating from the Gulf of America brought anomalous moisture into the area. A long duration period of rain ensued, with rain rates exceeding two inches an hour during the afternoon of May 13th. The slow moving storms coupled with training led to localized rainfall totals of four to eight inches across western Maryland, with lesser amounts of two to four inches across central Maryland. Most of this rain fell in a 6 hour period, resulting in flash flooding especially across western Maryland.
Began near Corriganville (39.6952, -78.8021).
Source: NOAA Storm Events Database, event 1250956. Narratives are written by the National Weather Service forecast office that issued the report.
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