GRANBURY, Texas (AP) - Forecasters say the tornado that claimed at least six lives and left seven others missing in North Texas is believed to have had winds up to 200 mph.
The National Weather Service said the preliminary storm estimate for Wednesday night's tornado in Granbury was an EF-4, based on the Fujita tornado damage scale. That means the storm carried wind speeds of 166 mph to 200 mph.
PHOTOS: Tornado damage in Granbury, Texas bit.ly/13oZn1s
Hood County Commissioner Steve Berry before dawn Thursday surveyed the damage in Granbury, about 40 miles southwest of Fort Worth, describing the neighborhood as "total devastation."
Berry, who was a firefighter for more than 20 years, says the Ranch Brazos neighborhood has about 100 mobile homes and wood structures. He says a lot of the mobile homes were "wadded up" and rolled during last night's twister.
Hood County Sheriff Roger Deeds says emergency responders are searching parts of Granbury that were left devastated. Deeds says authorities are working to identify the six adults who died in Wednesday night's twister.
He says 37 people were treated at a Granbury hospital and of those, 15 were transported to Fort Worth-area hospitals and 19 were treated and released.
The NWS believes 10 tornadoes raked North Texas in a violent system, including the one in Granbury. Other tornadoes damaged nearby Cleburne and Millsap.
Forecaster Jesse Moore says NWS teams traveled to the affected cities Thursday to survey the damage and speak with emergency management officials.