This current push of arctic air is delivering air that is just as cold, or even colder than the air that brought subzero lows to the Midwest and Northeast during last weekend.

Millions will shiver from Chicago to New York City as record lows are challenged during this bitter blast. Records may also fall across parts of the South where temperatures manage to fall into the teens and single digits.

Some southern cities forecast to dip into the teens or lower include Birmingham, Alabama; Charlotte, North Carolina; Columbia, South Carolina; Nashville and Atlanta.

Floridians will even experience a taste of the arctic chill with temperatures dipping down to the lower 30s in cities such as Orlando, Melbourne and Daytona Beach.

The worst of the cold is expected to focus over the East into Friday.