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Severe · Flash Flood WarningThis alert has expired. It is kept for reference.

Flash Flood Warning issued September 3 at 7:05PM EDT until September 3

Affecting Allegheny, PA; Armstrong, PA; Beaver, PA; Butler, PA; Washington, PA; Westmoreland, PA; Brooke, WV; Hancock, WV

In effect until: Sep 4, 2026, 1:15 AM

Allegheny, PA; Armstrong, PA; Beaver, PA; Butler, PA; Washington, PA; Westmoreland, PA; Brooke, WV; Hancock, WV

Likely impact across 8 counties in PA and WV; effects through 1:15 AM.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Affected areas

Pittsburgh

Read the original bulletin (official text)
At 705 PM EDT, the public and doppler radar reported thunderstorms
producing heavy rain across the warned area. Between 1 and 2 inches
of rain have fallen. Additional rainfall amounts of 0.5 to 1.5 inches
are possible in the warned area. Flash flooding is ongoing or
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Public reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.

Some locations that will experience flash flooding include...
Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Ross Township,
McCandless Township, Monroeville, Moon Township, McMurray, Weirton,
McKeesport, Franklin Park, Aliquippa, Canonsburg, Gastonville,
Shaler Township, Plum, West Mifflin and North Side Pittsburgh.

Several roads were flooded across the warned area, including in
Mcdonald and the city of Pittsburgh.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™