Behind the historic winter storm that blasted 40 states this weekend, a dome of Arctic air associated with the polar vortex ...

A massive polar vortex has returned to the US and is expected to send half the country into a deep freeze through the rest of the month. Meteorologists said that extremely cold air from Canada is ...

Winter Storm Warning in effect for Upstate, which includes Greenville, Spartanburg and Anderson counties, until 7 a.m. Feb. 1 ...

Winter Storm Warning in effect for Upstate, which includes Greenville, Spartanburg and Anderson counties, until 7 a.m. Feb. 1 ...

Winter Storm Fern is a stark reminder that the Trump administration's attempted cuts to weather related research impacts the ...

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is ...

A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar ...

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is it?

The biggest swings in the jet stream are associated with the most energy. Under the right conditions, that energy can bounce ...