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