He said 37 injured people were treated at hospitals.
One of the neighborhoods, Rancho Brazos, had a significant number of Habitat for Humanity homes that were damaged.
Harold Brooks, a meteorologist at the NWS' severe storm lab in Norman, Okla., said May 15 is the latest into the month that the U.S. has had to wait for its first significant tornadoes of the year.
Brooks said he would expect 2013 to be one of the least lethal tornado years since the agency started keeping records in 1954.
Utilities said about 20,000 homes and businesses in the region were without power early Thursday.
Another tornado cut a mile-wide path through Cleburne, storm spotters told the National Weather Service on Wednesday.
Cleburne Mayor Scott Cain said Thursday morning that no one was killed or seriously hurt in the courthouse city of about 30,000 that's some 25 miles southeast of Granbury. Seven people suffered minor injuries, and upward of 150 homes were damaged and another 50 were destroyed.
He described the storm as "bizarre" because severe winds kept shifting in different directions.
Cleburne resident Derrek Grisham was going through his mother's damaged home Thursday, salvaging items before the home is likely torn down.
Grisham, 26, said after the storm passed through, he ran to his mother's nearby home to check on her and his 10-year-old son, who was staying with her.
"I had to kick in the front door to get them out," he said, explaining the two had taken shelter in a bathtub.
The roof of the home was torn away and he said her belongings were a jumbled mass, but that Catholic crucifixes stayed in place on the living room wall.
Another tornado hit the small town of Millsap, about 40 miles west of Fort Worth. Parker County Judge Mark Kelley said roof damage was reported to several houses and a barn was destroyed, but no injuries were reported.