Now this is one for the books. All 50-American States - Hawaii, Florida and California included - recorded below freezing temperatures today.
Hawaii, California and Florida, states that normally bask in their reputation as warm winter escapes, experienced record low temperatures. In the midwest, northeast and eastern Canada, it was dangerous to venture outside.
The so-called polar vortex that funnelled an Arctic low pressure system into the upper US this week swung south and east on Tuesday. Polar conditions settled over two-thirds of the US.
It was colder in the southern state of Georgia than Alaska as Atlanta plunged to -14C (6F) – the lowest temperature since 1966 – while Anchorage, Alaska, recorded -3C (27F).
It was so cold in Kentucky on Monday that an escaped prisoner turned himself in. Robert Vick, 42, escaped from a minimum-security prison on Sunday, the Associated Press reported, but as temperatures dropped through the floor on Monday he walked into a motel and asked the clerk to call the police so he could escape the freezing air.