An intense Arctic air mass has settled across the United States, delivering the coldest temperatures of the season so far. S.
(CNN) — Record cold temperatures have pushed as far south as Florida this morning as wind-whipped snow continues to pile up in the eastern Great Lakes from a brief bout of Arctic air gripping the ...
High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...
(CNN) — The calendar still says fall, but the atmosphere is skipping ahead to winter as a rush of Arctic air sends more than two dozen states into a brief deep freeze. It all starts this weekend in ...