Winter weather is aiming at Delaware again. Where the snow will hit is the biggest question. Here's what we know.

Louisiana is forecasted to have a potential winter storm bringing a surge of cold air late Sunday into early next week.

Temperatures plunged into the teens and single digits in some spots, and the snow-dusted winds are driving the wind chill ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to nearly 300 million Americans starting this weekend. Maps show where and ...

With much of the nation preparing for the impacts of a polar vortex, weather forecasters say Loudoun County can expect to see ...

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

The polar vortex is a low-pressure system of cold air that swirls above Earth’s poles. There’s one over the South Pole in ...

The coldest weather of the season to date will be due to a phenomenon called a polar vortex, an upper-level jet stream that typically circulates around both the North and South Poles, but can push ...