Active Weather Alerts
Flash Flood Warning
Issued: 12:20 AM Sep. 4, 2026 – National Weather Service
The National Weather Service in Pittsburgh has extended the * Flash Flood Warning for... Southeastern Columbiana County in east central Ohio... North Central Allegheny County in southwestern Pennsylvania... Southern Butler County in west central Pennsylvania... Central Beaver County in western Pennsylvania... South Central Lawrence County in western Pennsylvania... * Until 1145 PM EDT. * At 820 PM EDT, the public reported thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1 inch 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... McCandless Township, Cranberry, Franklin Park, East Liverpool, Aliquippa, Beaver Falls, Monaca, Economy, Ellwood City, Wexford, New Brighton, Beaver, Calcutta, Baden, Zelienople, Rochester, Ohioville, Harmony Township and Seven Fields. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. && FLASH FLOOD...OBSERVED
Flash Flood Warning
Issued: 12:13 AM Sep. 4, 2026 – National Weather Service
The National Weather Service in Pittsburgh has extended the * Flash Flood Warning for... Allegheny County in southwestern Pennsylvania... Northern Washington County in southwestern Pennsylvania... Northwestern Westmoreland County in southwestern Pennsylvania... Southwestern Armstrong County in west central Pennsylvania... Southeastern Butler County in west central Pennsylvania... Southern Beaver County in western Pennsylvania... Brooke County in northern West Virginia... Hancock County in northern West Virginia... * Until 1215 AM EDT. * At 813 PM EDT, local law enforcement and doppler radar reported thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Law enforcement reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * 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. Water rescues were reported along Mifflin, Saw Mill Run, and Library roads. In addition, flash flooding is possible at Pine Creek and Turtle Creek. Additional heavy rain is expected to move across the warned are this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. && FLASH FLOOD...OBSERVED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
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