However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

Cold, really cold and scary cold. During the 295 hours or 12.3 days stretch in 1983, North Texans felt temperatures as low as 5 degrees.

Cold, really cold and scary cold. During the 295 hours or 12.3 days stretch in 1983, North Texans felt temperatures as low as 5 degrees.