The Mount Washington Observatory in New Hampshire says​ its weather observers are "bracing for an extreme cold and wind event ...

The northeastern US is set to be blasted with the with most extreme cold on Earth later this month, according to shocking new ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...

Arctic air is taking cold to another level this week and the US could be facing bouts of it well into December thanks to the polar vortex.

A historic cold event is unfolding across North America as a displaced polar vortex sends Arctic air surging southward with ...

There are early signs that the northeastern United States may be in for several waves of below-average low temperatures this ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...