Severe weather threatens US flights during one of busiest travel weekends

Nearly 900 flights have been cancelled already as tornado watches are issued in Texas and Louisiana

As the US braces for one of its busiest travel weekends of the year, the threat of severe weather has already led to hundreds of flight cancellations.

Tornado watches were issued in the southern states of Texas and Louisiana on Thursday, CNN reported. In Texas, the Federal Aviation Administration ordered ground stops at two airports, CBS reported. Governor Greg Abbott of Texas activated emergency response resources in the state on Thursday.