Active Weather Alerts
Flash Flood Warning
Issued: 4:58 PM Aug. 10, 2026 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON FOR SOUTHEASTERN ALLEGHENY, EAST CENTRAL WASHINGTON AND WESTERN WESTMORELAND COUNTIES... At 1258 PM EDT, local law enforcement reported flash flooding across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by heavy rain. SOURCE...Law enforcement 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... Mount Lebanon, Bethel Park, McMurray, McKeesport, Gastonville, West Mifflin, Baldwin, Upper St. Clair, Scott Township, Whitehall, South Park Township, Munhall, Cecil-Bishop, Jefferson Hills, North Versailles, Brentwood, Castle Shannon and Pleasant Hills. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be aware of your surroundings and do not drive on flooded roads. && FLASH FLOOD...OBSERVED
Flash Flood Warning
Issued: 4:42 PM Aug. 10, 2026 – National Weather Service
The National Weather Service in Pittsburgh has issued a * Flash Flood Warning for... Southeastern Allegheny County in southwestern Pennsylvania... Southwestern Westmoreland County in southwestern Pennsylvania... * Until 345 PM EDT. * At 1242 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. Additional rainfall amounts of 1 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...Radar indicated. 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... Greensburg, Jeannette, Irwin, Manor, Youngwood, West Newton, New Stanton, Calumet-Norvelt, North Irwin, Sutersville, Penn, Madison, Arona, Hunker, Adamsburg, Herminie and Grapeville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && FLASH FLOOD...RADAR INDICATED
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