Millions of people were under tornado watches on Saturday in parts of Texas, Louisiana, Mississippi and Arkansas.

Millions in the South were under tornado watches on Saturday as an outbreak of severe weather hits the region just in time ...

which change frequently as tornado threats develop and pass.) The "particularly dangerous situation" wording is used in "rare situations when long-lived, strong and violent tornadoes are possible ...

(The National Weather Service maintains a list of current tornado alerts, which change frequently as tornado threats develop and pass.) The "particularly dangerous situation" wording is used in "rare ...

More serious tornado warnings (which are updated rapidly as threats appear and pass) were also issued in parts of Texas and Louisiana throughout the morning. The severe weather prompted ...

The National Weather Service warned of a "tornado outbreak" across some Southern states on Saturday, with imminent danger in Texas.