Dallas drivers heading out early Thursday should check conditions before leaving: the National Weather Service expects the heavier-rain threat to move toward the Interstate 35 corridor overnight.
Wednesday morning’s forecast places the greatest flash-flood risk in western North Texas this evening before it shifts east overnight and early Thursday. Storms will not arrive everywhere at once, and that regional timing is not a precise schedule for any Dallas neighborhood.
The flood watch remains scheduled from 4 p.m. Wednesday, Sept. 30, through 7 a.m. Friday, Oct. 2, including Dallas County and surrounding counties. The start and end times have not changed since Tuesday night’s report.
The rainfall outlook has changed. Wednesday’s 4:40 a.m. watch update calls for 2–4 inches across the affected region, with localized amounts of 5–7 inches possible where storms repeatedly pass. The forecast does not mean every Dallas block will receive that much rain.
Keep weather notifications audible overnight and leave flexibility in Thursday travel plans. Never drive into a water-covered roadway. A watch describes conditions that could produce flooding; it is not proof that a road is already flooded or closed.
As of the National Weather Service alert check at 9:33 a.m. CDT Wednesday, Dallas County was covered by the watch, with no active flash-flood, tornado or severe-thunderstorm warning listed for the county. Check official alerts again before traveling because warnings and conditions can change.
