Freezing temperatures sweep U.S.

A car lies half submerged in the Cahaba River in Mountain Brook, Alabama, on Thursday, January 30. The driver was able to escape before the car slid into the river during a snow storm on Tuesday and was not injured. A wave of arctic air that started over the Midwest and Plains spread to the Southeast, bringing snow, freezing ice and sleet to a region that doesn't deal with such weather very often.

A car lies half submerged in the Cahaba River in Mountain Brook, Alabama, on Thursday, January 30. The driver was able to escape before the car slid into the river during a snow storm on Tuesday and was not injured. A wave of arctic air that started over the Midwest and Plains spread to the Southeast, bringing snow, freezing ice and sleet to a region that doesn't deal with such weather very often.