A tornado warning has been issued across the southern United States as a dangerous storm system threatens structures.

Millions in the South were under tornado watches on Saturday as an outbreak of severe weather hits the region just in time for post-holiday travel. January's reputation for cold and snow is well deserved, but it can also deliver tornadoes and damaging atmospheric rivers. Another house in danger of collapse in St. Charles County is being demolished.

Suspected tornadoes were spotted and caught on videos in Texas as storms battered parts of the South Saturday. A tornado is believed to have killed at least one person and left four people injured in Brazoria County,