Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

The polar vortex, a natural atmospheric phenomenon, influences global winter weather by circulating Arctic air. Its expansion ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...

This cold was certainly extraordinary, but the polar vortex event of January 2019 brought life in the northern and central United States to a frozen halt. At that time in our area, the coldest actual ...

C with the windchill but the worst is likely over. Environment Canada lifted its extreme cold warning with mid-day ...

The cold temperatures are coming from a not uncommon expansion in the Polar Vortex, which are counter-clockwise rotating air ...

The system, known as a polar vortex, is forecast to bring subzero temperatures to ... Download USA TODAY's app to get to the ...

Here are the lowest temperatures across Colorado on Tuesday morning, according to the National Weather Service.

Under the Rotunda of the U.S. Capitol, Donald Trump was again inaugurated, this time as the 47th president of the United ...

Copyright 2025 The Associated Press. All Rights Reserved. People walk past the 1900 Storm memorial sculpture on Seawall Blvd.

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame. Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET.