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 ...

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 ...

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 ...

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

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 ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

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.