This image shows a tornado that hit the town of Granbury in northwest Texas, May 15, 2013. / Karon Campbell
GRANBURY, Texas (CBS/AP) -- At least six people were killed Wednesday as a spring tornado outbreak devastated parts of North Texas, destroying or damaging dozens of homes and injuring dozens of people.
Officials awaited daybreak to fully assess the scope of the destruction left by what the National Weather Service estimates to have been at least 10 twisters in all, reports CBS Dallas station KTVT.
The deadly twisters touched down just outside Fort Worth around eight o'clock last night, packing winds of up to 80 miles per hour.
The worst-hit city was Granbury, where authorities say a deadly tornado tore through two neighborhoods at about 8 p.m. Hood County Sheriff Roger Deeds delivered word of the death toll at a midnight news conference.
"Some were found in houses. Some were found around houses," Deeds said, adding that the death toll may climb. "At this point I've got 14 people unaccounted for," he said.
One woman, a mother of five, told KTVT she lost everything in an instant. "There's nothing left," she said. "I mean, our neighborhood is gone, it's just gone."
About 50 people were taken to a Granbury hospital, where 14 were admitted for treatment of injuries and two were transferred to a hospital in Fort Worth, about 35 miles to the northeast, Deeds said.
As many as 100 people were injured, said Matt Zavadsky, spokesman for MedStar Mobile Healthcare. His company sent three ambulances and a medical bus from its Fort Worth base to Granbury.
Deeds said officials were trying to account for 14 people, but it was not clear if they were missing or were away from the area for other reasons.
Utility officials say about 20,000 homes and businesses lost electricity due to the storms. Dallas-based Oncor on Thursday had nearly 18,000 customers without power, most in the Dallas-Fort Worth area and farther south. United Cooperative Services reports more than 2,000 homes and businesses without electricity in a cluster of communities, including Granbury.
Hardest hit were two neighborhoods, Rancho Brazos Estates and DeCordova Ranch, in the southern end of the town of about 8,000 residents about 65 miles southwest of Dallas.
Ambulances from as far away as Fort Worth were being called to Granbury, said Tye Bell, Richland Hills police spokesman who was heading to Granbury on Wednesday night.
Rancho Brazos Estates resident Elizabeth Tovar said she rode out the tornado with her husband and sister as she clutched her 9-month-old daughter.
"We heard the winds whipping and glass smashing everywhere," said Tovar, 25. "I felt like a long time and when things died down I looked up and saw that the roof was gone."
Another resident of that neighborhood, Allacia Jenny, said she witnessed devastation in her neighborhood.
"The house across from mine looked like it was destroyed," said Jenny, 22.
Toppled large trees littered her yard, and "I saw power lines all over the place," she said.