Rapidly taking off, water-trapped vehicles around 3 a.m. CT (4 a.m. ET) on Interstate 30 in Dallas, said Cassondra Anna Mae Stewart, who videoed the dark, watery scene.
“I was able to back up on a ramp to get off the freeway,” she said. “I took an alternate route home…although most of the streets down there are flooded as well.”
About that time, “trained weather spotters reported major flash flooding throughout Dallas with numerous roads and cars submerged, including Interstate 30 at Interstate 45 near downtown Dallas,” according to a flash flood warning issued at 3:21 a.m. CT ( 4:9 p.m. ET).
Dallas County remains under a sudden flood warning, with a significant flood threat through 8 a.m. CT (9 a.m. ET) Monday. Ellis County, south of Dallas, was hit again this morning by two flash flood warnings after an estimated 5 inches of rain fell there.
According to rainfall estimates, downtown Dallas has drenched 20 inches of rain since Sunday night, with more than four inches at Dallas/Fort Worth International Airport and over six inches at Dallas Love Field.
Cities in Monday’s flood zone include Dallas, Fort Worth and Austin, Texas, and Shreveport, Louisiana. The region has a moderate – level 3 of 4 – risk of excessive rainfall. Precipitation rates of 2 to 3 inches per hour have been observed as storms move slowly over the area, creating the potential for up to 3 to 5 inches of rainfall.
On Sunday, rain continued in parts of Arizona and New Mexico after flooding in parts of the southwest in previous days.
In Utah, hikers were “swept off the ground” by a flash flood in Zion National Park on Friday. Members of the search and rescue team were working to locate a missing hiker near the Virgin River, the park said Saturday.
The park was closed on Sunday, the National Park Service said. “Maintenance crews will begin assessing and removing debris from the roadway,” the National Park Service added.