Thanks to the polar vortex, it feels like one, too. Why is it so cold? The Philadelphia region was hammered Monday by the ...

13 degrees to 31 degrees: Your home should be a warming center for your child. Children should come in every 20 to 30 minutes ...

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 ...

A recent study explains how warmer temperatures at the top of the planet destabilize the jet stream and allow colder air to ...

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, ...

SALT LAKE CITY — Cities across the U.S. are bracing for cold temperatures as a polar vortex arrives, bringing temperatures down to much below normal for mid-to-late January. Parts of Utah are on ...

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 ...

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 ...