A harsh drop in temperatures is being delivered to the eastern two thirds of the U.S. thanks to a polar vortex dipping down ...

The outbreak will bring the most significant temperature plunge since spring and affect more than 100 million people, ...

More than 190 million Americans woke up to an arctic blast on Tuesday, with most people seeing temperatures 15–25 degrees ...

Millions of Americans are potentially facing a volatile stretch of severe weather this week as a sprawling storm system brings the risk of damaging winds, large hail, and tornadoes across the central ...

Chicago is facing a dangerous lake-effect snow event overnight Sunday into Monday morning. A narrow, but extremely intense ...