FFWLIX The National Weather Service in New Orleans has issued a * Flash Flood Warning for. Northwestern Ascension Parish in southeastern Louisiana. * Until 845 PM CDT. * At 535 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. The expected rainfall rate is 2 to 4 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD. Flash flooding caused by thunderstorms. SOURCE. Radar. 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. Gonzales, St. Gabriel, Prairieville and Geismar. This includes the follwing Interstate. Interstate 10 in Louisiana between mile markers 169 and 181.
