This story has been edited to correct an error. Judah Cohen is affiliated with the Massachusetts Institute of Technology. Our old wintertime friend the polar vortex ...

The first thing most people will notice about the Vortex AMG 1-10×24 is its eye-popping price. It lists for a stunning $6,399, with a street price of $4,000. Now it’s one thing for military units to ...

There is a large atmosphere of cold air that normally circulates in the Arctic. During winter, scientists have often monitored this Polar Vortex region because of a familiar pattern; whenever it gets ...

Winter started quickly across most of Canada! Will a classic Canadian winter pattern hold through January and February? After a very mild fall across most of Canada, many places experienced one of ...

Snow season has gotten off to a fast start across swaths of the northern United States this year. Fueled in part by an unusually early disruption to the polar vortex — which is now easing — 18 states ...

It’s time to bring in sensitive plants, prepare your pets and gas up your car. The big chill is coming this weekend. The polar vortex will spread from the North Pole into Canada and the Midwestern ...

Another round of bone-chilling air from the polar vortex could invade the central and northeastern US this weekend and potentially produce the first significant snowstorm of the season for the ...

Add Yahoo as a preferred source to see more of our stories on Google. A map of the polar vortex that is bringing frigid temperatures to parts of the U.S. (AccuWeather) The first of three rounds of ...

Grab your coats, it's getting chilly. A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the coming days. The polar vortex will ...

The polar vortex is expected to send three waves of Arctic air into the U.S. through mid-December. Despite the cold blasts, current forecasts do not predict significant snow for most of Mississippi.