Large swaths of southeast Texas and Louisiana and parts of southern Mississippi are under an extreme cold warning after a day of snow. Now, snow, slush and ice left on the ground will refreeze.

A "Freeze Warning" is in effect across southern Arkansas, northern Louisiana, Oklahoma and eastern Texas, as well as in small parts of Arizona, California and Florida, with temperatures falling as low as 27, and wind chills expected to feel as cold as low as 13 in some areas.

A rare winter storm charging through Texas and the northern Gulf Coast on Tuesday has closed highways and airports and prompted the first blizzard warning for southeast Texas and southwest Louisiana.