Arctic blast ‘absolutely shatters’ cold records in US - and chilly weather and ‘falling iguana advisory’ aren’t over yet

With some daily records shattered, the first major cold spell of the season plunged parts of the U.S. into record-low temperatures on Tuesday.

At least 18 million people were under freeze warnings across Alabama, Florida and Georgia, while several inches of snow covered areas as the blast of cold air moved through along the eastern Great Lakes.