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 ...

A polar vortex, a massive pocket of frigid air that ... For the Philadelphia suburbs and Delaware, frigid conditions will bring freezing overnight lows and the potential for icy roads ...

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 the ...

Christmas has passed, but the weather outside is still frightful. A snowstorm hit Delaware last week and was followed by a ...

Imagine the polar vortex as a giant, icy whirlpool far above the Earth, keeping frigid Arctic air contained near the north ...

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 ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

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

That will be followed by a polar vortex that will cause temperatures ... and impact up to 40 states across the U.S., including Delaware, meteorologists with AccuWeather said.