The first "Tornado Emergency" in Houston has been issued by the National Weather Service.
Many weather watches and warnings were issued during Tuesday's storms in the Houston region.
The National Weather Service's "Tornado Emergency" warning for the Houston region included one of the first of its kind.
A tornado was reported in the Pasadena/Deer Park area, heading northeast toward Baytown, prompting the authorities to act.
Despite the fact that the National Weather Service has been in Houston for seven years, according to a meteorologist, Tuesday was the first time.
The National Weather Service's official definition of a Tornado Emergency is: 'An exceedingly rare tornado warning is issued when a serious threat to human life or catastrophic damage is caused by an imminent or ongoing tornado.'
A storm is already believed to be causing damage.