Flash flood warning extended for northwestern Dallas County, Denton and Tarrant counties

The National Weather Service in Fort Worth has extended a flash flood warning for northwestern Dallas County, Denton County and Tarrant County until 12:30 p.m. CDT on Thursday, October 1, as thunderstorms produce heavy rain across the area.

At 10:17 a.m., Doppler radar and automated rain gauges showed thunderstorms producing heavy rain across the warned area. Up to 4 inches of rain have fallen, and up to 2 more inches are possible. The weather service said flash flooding is ongoing or expected to begin shortly.

Locations expected to see flash flooding include Irving, Grand Prairie, Carrollton, Coppell, Fort Worth, Arlington, Frisco, Denton, Lewisville, Flower Mound, Mansfield, Euless, Bedford, Grapevine, Haltom City, Keller and Hurst. Small creeks and streams, urban areas, highways, streets, underpasses and other poor drainage and low-lying areas are at risk.

Affected highways include Interstate 35E between mile markers 437 and 466, Interstate 35W between mile markers 38 and 85, Interstate 35 between mile markers 468 and 470, Interstate 20 between mile markers 423 and 456, and Interstate 30 between mile markers 2 and 37.

The weather service urged drivers not to drive on flooded roads and to turn around when they encounter them, noting that most flood deaths occur in vehicles.