Active Weather Alerts
Flood Warning
Issued: 5:51 PM Aug. 20, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is occurring. * WHERE...Eastern Allegheny County in southwestern Pennsylvania... North Central Fayette County in southwestern Pennsylvania... Westmoreland County in southwestern Pennsylvania... Southwestern Armstrong County in west central Pennsylvania... Southwestern Indiana County in west central Pennsylvania... * WHEN...Until 500 PM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Numerous roads remain closed due to flooding. Streams continue to rise due to excess runoff from earlier rainfall. It will take several hours for all the water from these storms to work through local drainage systems in urban areas. * ADDITIONAL DETAILS... - At 151 PM EDT, local law enforcement reported flooding in the warned area. Between 1 and 2.5 inches of rain have fallen. - Some locations that will experience flooding include... Greensburg, Jeannette, Latrobe, Vandergrift, Apollo, Murrysville, Mount Pleasant, Scottdale, McChesneytown- Loyalhanna, Blairsville, Manor, Youngwood, Derry, Delmont, Lawson Heights, New Stanton and Leechburg. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Flood Warning
Issued: 4:52 PM Aug. 20, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT UNTIL 345 PM EDT THIS AFTERNOON... ...REPLACES FLASH FLOOD WARNING... * WHAT...Flooding caused by excessive rainfall is occurring. * WHERE...Allegheny County in southwestern Pennsylvania... Western Fayette County in southwestern Pennsylvania... Northeastern Greene County in southwestern Pennsylvania... Central Washington County in southwestern Pennsylvania... Southwestern Westmoreland County in southwestern Pennsylvania... South Central Beaver County in western Pennsylvania... Brooke County in northern West Virginia... Hancock County in northern West Virginia... * WHEN...Until 345 PM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. It will take several hours for all the water from these storms to work through local drainage systems in urban areas. * ADDITIONAL DETAILS... - At 1251 PM EDT, local law enforcement reported flooding in the warned area. Between 1 and 2 inches of rain have fallen. - Some locations that will experience flooding include... Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Ross Township, Monroeville, Moon Township, McMurray, McKeesport, Uniontown, Canonsburg, Avella, Gastonville, Shaler Township, Plum, West Mifflin, North Side Pittsburgh, Baldwin and Upper St. Clair. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Flash Flood Warning
Issued: 4:23 PM Aug. 20, 2026 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 PM EDT THIS AFTERNOON FOR EAST CENTRAL WESTMORELAND, SOUTHEASTERN ARMSTRONG, INDIANA AND SOUTHERN JEFFERSON PA COUNTIES... At 1223 PM EDT, the public reported thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Public reported flooded roadways near Ernest. 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... Indiana, Punxsutawney, Kittanning, Homer City, Ford City, Black Lick, West Kittanning, Clymer, Sykesville, Rural Valley, New Florence, Big Run, Dayton, Chevy Chase Heights, Rossiter, West Hills, Seward, Bolivar, Ernest and Marion Center. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && FLASH FLOOD...OBSERVED
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