A day after a tornado smashed through the Houston area, southerners were on guard Tuesday, Nov. 25, for more severe weather just as travel ramps up for the Thanksgiving holiday.

Bracing for record holiday travel by planes, trains and automobiles -- 31 million people are expected to fly this Thanksgiving holiday.

"While no human lives and livestock have been lost so far, many villages have been covered in ash and as a result their animals have little to eat," an official said.

A National Weather Service storm survey on Tuesday has determined that two tornadoes hit the Houston area on Monday, the agency said.