A polar vortex is slated to sweep most of the continental United States bringing a hazardous freeze to millions of Americans ...

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...

Over 120 million Americans will face extreme cold, with temperatures potentially reaching minus 40 degrees Celsius.

The polar vortex of ultra-cold air usually spins around ... a weather service meteorologist based in Gray, Maine. The cold was expected to grip the Eastern Seaboard as far south as Georgia ...

Pic: AP The winter storm is being driven by a polar vortex, usually located around the North Pole, which has dipped south and stretched from between the Rocky Mountains to Maine. Elsewhere ...

Maine doesn't require its medical cannabis be tested for mold, chemicals and other contaminants. A new bill seeks to change that. Proposed by the Office of Cannabis Policy and sponsored by Rep. Marc ...

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, ...

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...

But during the winter, it is joined by a second atmospheric phenomenon dubbed the polar vortex. This swirl of frigid air, located more than 10 miles above Earth’s surface, strengthens each year ...

What’s shaping up to be the most expansive polar vortex in over a decade is about to plunge much of North America, including nearly all of Canada, into the coldest temperatures the country has ...