Rainfall in parts of the state will likely exceed 10 inches (25 cm) during the day, according to the Texas Division of Emergency Management, leading to flooding in some areas in a region stretching 280 miles (450 km) from north of San Antonio to Fort Worth. There have been no reported deaths from the floods and the agency is assessing damage caused by the heavy rain.
Thousands of visitors at the Six Flags (PKS.N: Quote, Profile, Research) amusement park in Arlington, west of Dallas, were told to leave the park as flood waters formed pools at the base of some rides.
"Hopefully we can open up tomorrow. We do not believe there has been any damage," a representative of the park said.
Nine inches (23 cm) of rain in less than four hours fell on saturated ground in west central Texas, northwest of San Antonio, forcing dozens from homes near the Frio River. Flood victims searched for anything to cling to above the water line.
"We have several people out here on top of houses and in trees," said Uvette Bruce, who lives in the small town of Leakey. (Additional reporting by Jim Forsyth in San Antonio)