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

Christmas has passed, but the weather outside is still frightful. A snowstorm hit Delaware last week and was followed by a polar vortex dropping freezing temperatures in the region. The weather isn't ...

A polar vortex, a massive pocket of frigid air that ... temps south and impact up to 40 states across the U.S., including Delaware, meteorologists with AccuWeather said. The National Weather ...

Thanks to the polar vortex, it feels like one, too. Why is it so cold? The Philadelphia region was hammered Monday by the season’s first big storm, with some areas in Delaware and the lower ...

How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the ...

Abnormal weather events and severe winter storms could be caused by a disrupted polar vortex. Find out here how the polar ...

Monday's snowstorm hit southern Delaware the hardest, prompting days of closures and delays for schools and businesses. A polar vortex − a swirling mass of Arctic air typically contained over ...

A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as ...

A new year brings a new winter storm for Delaware and other parts of the U.S. that likely ... That will be followed by a polar vortex that will cause temperatures to drop next week. With the season's ...