FFWPBZ The National Weather Service in Pittsburgh has extended the * Flash Flood Warning for... Northeastern Allegheny County in southwestern Pennsylvania... Northwestern Westmoreland County in southwestern Pennsylvania... Southwestern Armstrong County in west central Pennsylvania... Southeastern Butler County in west central Pennsylvania... * Until 1015 PM EDT. * At 803 PM EDT, Doppler radar indicated thunderstorms producing heavy rain in Bakerstown Road in Richland Township is being closed due to water over the road. Between 1.5 and 2.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is already occurring. 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... Ross Township, McCandless Township, Franklin Park, Vandergrift, Apollo, Shaler Township, Plum, Murrysville, Hampton Township, New Kensington, Lower Burrell, Harrison Township, O'hara Township, Wexford, Oakmont, Fox Chapel, Arnold, Tarentum, Natrona Heights and Springdale.