As the polar vortex begins to retreat, the region will see a gradual return to typical winter conditions. Long-range ...

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 ...

The storm, which will hit the Delmarva Peninsula and Pennsylvania and New Jersey on Friday night into Saturday, is expected ...

Thanks to the polar vortex, it feels like one, too. Why is it so cold? The Philadelphia region was hammered Monday by the ...

The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...

Louisiana is forecasted to have a potential winter storm bringing a surge of cold air late Sunday into early next week.

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

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

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 ...