A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...
The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...
The week began with a biting cold snap that hammered much of the U.S., the product of a jet stream that slips out of its ...
The expanding of the polar vortex – an area of cold air around the Arctic – southwards is causing cold spells in the US.
The images, captured on January 6 by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA’s Aqua ...
Some experts say the Frigid air that normally stays trapped in the Arctic escaping is happening more frequently because of a ...
The polar vortex is a long-established weather term ... To the west of that plunge, in California, it's hot and dry. But to the east and just above the dip, it's a taste of the North Pole.