The polar vortex has returned to the U.S., and frostbite-inducing temperatures are blasting millions of Americans.
The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher latitudes but is ...
"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...
The polar vortex's icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.
There is a pressing need to enhance the efficiency of hydroelectric power, leading to the exploration of a range of solutions.
The polar vortex is not synonymous with cold snaps, but when it slides toward the United States, the polar jet stream can ...
Meteorologists had predicted that parts of the U.S. would experience the 10th and coldest polar vortex event this season.
The National Weather Service has issued extreme cold warnings for millions of Americans from the Canadian border to Texas.
After a winter storm brings snow, ice to several states, Mississippi will see Arctic air from the polar vortex for a few days ...
Some of the coldest temperatures are expected in Montana, and avalanche warnings have been issued in Utah, Colorado and ...
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