It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the ...

Part of Mississippi under extreme cold warning after winter storm dropped snow across the Gulf Coast. When will temperatures ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

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

Arctic air has brought chilling temperatures as low as 12 degrees in New York City on Monday night but are we in a polar ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

This blast of cold weather is due to activity of the polar vortex.

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...