The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms ...

The coldest burst of Arctic air this season is coming to put an icy exclamation point on America's winter of repeated polar vortex invasions ... This winter, with record snow in New Orleans and ...

Harsh weather moved west on Monday as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 10 people ...

See, for example, the below-zero wind chills Dallas endured Wednesday morning, or when New Orleans was buried under a record-breaking 8 inches of snow in January. The polar vortex has been ...

The polar vortex could bring a cold blast to millions across America in the second half of March, AccuWeather said in a media ...

Winter weather lingers as a major shift in the weather pattern could have millions across the United States once again ...