It's the second day of turbulent weather in the state, where at least three people died Friday in flood waters in central Texas.
Another person is still missing in the Austin area. The storms and suspected tornadoes, which forecasters say were caused by an upper-level disturbance from Mexico, socked an already-sodden swath of Texas that was still drying out from the remnants of Hurricane Patricia.
In the Houston area, up to 8 inches of rain fell since last night, though it had mostly stopped by this afternoon.
Houston police discovered the two bodies that are believed to be weather-related deaths, one in a flooded ditch and another in a wooded area where there had been high water, according to city spokesman Michael Walter.
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As the storms moved east today, National Weather Service meteorologist Patrick Blood said a tornado went through Brazoria County near Alvin about 5 am, injuring at least two people and damaging about 25 mobile homes in the community that's 48 kilometres south of Houston.
Between 10 and 30 homes were damaged by a tornado in a subdivision in eastern Harris County at about 7 am today, Blood said.
Austin, San Antonio and surrounding areas were first hit Friday. Three people died when they were swept away by flood waters; a woman is still missing after waters reached her home in the Austin area.
The third death was confirmed Saturday morning, when officials found the body of a man whose vehicle was swept away Friday southeast of Austin, Travis County Emergency Services spokeswoman Lisa Block. Other passengers in the vehicle were able to escape, but the man did not.