Pittsburgh, Pa. – Torrential evening thunderstorms have triggered flash flooding across parts of Western Pennsylvania Tuesday night, stranding drivers and overwhelming small creeks from Fayette to Clarion counties.
According to the National Weather Service in Pittsburgh, flash flood warnings remain active through at least 10:30 p.m. for multiple counties, including Indiana, Westmoreland, Armstrong, and Jefferson. Radar and law enforcement reports confirm between 1 and 2 inches of rain falling in under an hour, with more on the way.
In southeastern Westmoreland County, towns like Latrobe, Mount Pleasant, and Ligonier are reporting street flooding and rising waters in underpasses. Law enforcement in Oil City confirmed flash flooding already underway by 7:30 p.m., as storms pushed east at 15 mph. Affected towns include Franklin, Sandy Lake, and Sugarcreek.
Northern Fayette and southern Westmoreland counties are also experiencing flash floods, with alerts covering Connellsville, California, and Seven Springs. Rainfall rates in these areas have reached up to 1.5 inches per hour.
Residents should avoid all unnecessary travel, especially after dark. “Turn around, don’t drown” remains critical advice as most flood-related deaths occur in vehicles. Stay off flooded roads, charge mobile devices, and monitor local alerts for updates.
Flash flood warnings are expected to remain in effect until at least 10:30 p.m., with more rain possible overnight.
