Afternoon storms turned into a real headache across the northern Dallas–Fort Worth suburbs yesterday as a flash flood warning lit up parts of Collin and Denton counties. Thunderstorms dumped heavy rain over the area, with Doppler radar and automated gauges clocking pockets of 1 to 2 inches, and forecasters warned that more downpours could push streams and low-lying streets out of their banks. Officials cautioned that underpasses and shallow bridges can fill quickly and that small creeks may spike with little warning.
At 2:52 p.m., the National Weather Service in Fort Worth issued a Flash Flood Warning for southwestern Collin and southeastern Denton counties and said the alert is in effect until 6 p.m. yesterday, according to the National Weather Service in Fort Worth. The office said Doppler radar and automated gauges indicated heavy rainfall across the warned area and that additional amounts of up to 2 inches were possible.
Where Flooding Could Strike
Local reporting lists a long line of suburbs sitting under the warning, including Dallas, Plano, Garland, McKinney, Carrollton, Frisco, and Denton, and also names Richardson, Lewisville, Allen, Flower Mound, Grapevine, Coppell, The Colony, Southlake, Corinth, Highland Village, Addison, Lake Dallas, and Lake Lewisville, according to the Fort Worth Star‑Telegram. Those communities could see urban flooding, water-covered underpasses, and fast rises on small creeks where water can cut off streets in a hurry.
Why The Water Is Dangerous…