Coast to coast weather alerts for wind chill, ice and heavy snow as thousands left without power
More than 200 million people in nearly every US state are under various winter weather alerts, including for wind chill, ice and heavy snow, as a huge winter storm system threatens travel chaos and one of the coldest Christmas days on record.
The coast to coast alerts extend as far south as Florida, with blizzard conditions expected in the Great Lakes region, up to 2in (5cm) of rain and a flash freeze on the East Coast, and wind gusts of 60 miles (100 km) an hour on the Mexican border.