Dozens of roads have been rendered impassable in San Antonio and surrounding county as heavy rain caused floods across central Texas.
The floodwater also knocked out power supplies to some 12,000 customers, according to to CNN.
The National Weather Service (NWS) has flood warnings in force for five rivers in the San Antonio area and is warning drivers in affected areas to stay put.
A tornado briefly touched down in the suburb of Live Oak causing minor damage to buildings and trees but is no longer a threat, the NWS reported.
A local television station in San Antonio, Texas has reported a tornado touchdown on the north east side of San Antonio.
Two airport terminals evacuated in San Antonio airport have reopened after bomb technicians checked and "cleared" three vehicles in the long stay car park.
1,000 passengers were evacuated after "very specific" bomb threats were made, earlier today.
Two terminals have been evacuated in San Antonio airport after authorities were alerted to "a very specific bomb threat." Airport spokesman Rich Johnson said:
Jonson said about 1,000 people have been evacuated. No flights have been diverted, but six or seven flights that landed or were preparing to take off were ordered away from the terminal.
San Antonio International airport has been evacuated after officials say they received a bomb threat. Airport spokesman Rich Johnson said that someone called the airport making a "very specific" threat.
Passengers inside the terminal were evacuated to the the tarmac, and planes landing into the airport are being diverted away from the building.
San Antonio airport in Texas has been evacuated and flights have been put on hold after a bomb threat, according to airport and local officials.