Add Yahoo as a preferred source to see more of our stories on Google. This winter, it seems as if temperatures have been fluctuating more significantly. Over the past year, it seems as if severe ...

The heat wave battering Europe may have an unlikely partner in crime: a patch of cold ocean water south of Iceland and ...

This winter, the Northern Hemisphere has been suffering from extreme cold. In South Korea, an unusually prolonged cold wave has continued even after the traditional coldest day of the year, Daehan ...

Cold waves are periods of abnormally low temperatures that may persist for days to weeks, typically driven by large-scale atmospheric circulation anomalies such as polar-vortex breakdowns or ...

A January thaw that brought widespread record warmth to the United States is coming to an end. It will be replaced by the familiar polar vortex pattern that caused below-average temperatures in the ...

An arctic blast of cold air is headed to the Northeast this weekend and into early next week, bringing the coldest air of the season and a possible first snow to some areas, including Pennsylvania, ...

Authorities across Southern Europe urged people to seek shelter Sunday and protect the most vulnerable as punishing temperatures from Spain to Portugal, Italy and France climbed higher in the summer's ...

Colorado is getting ready to drop into a dangerous multi-day deep freeze. A surge from the Polar Vortex will be pushing below-zero temperatures across the region with several bursts of snow beginning ...

The new year is here, and that generally means colder temperatures — even in Jacksonville as many residents can attest. So much so that there has been a lot of chatter online about an arctic blast of ...