The snowstorm has coated traditionally warmer parts of Southern USA with a deep lining of white powder, leading to flight cancellations and the closure of at least one airport.

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

Multiple winter weather-related alerts are in place across parts of New York, as well as further south in the Mid-Atlantic ...

The coldest air of winter so far will have invaded much of the eastern two-thirds of the United States by Sunday’s end. And in many places, the chill will be dangerous. Alerts for cold weather ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...

The coldest air of the season will descend across the U.S. this weekend and early next week, bringing subzero wind chills with it.

After the first "fake spring" of the year, where temperatures reached high 80s, Texas can expect freezing temperatures again ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.