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

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

The polar vortex is like a giant, swirling pool of super-cold air in the upper atmosphere over the North Pole. Imagine it like a children's spinning top. When the top is spinning fast and steady ...

A series of disturbances in the atmosphere is sending the polar vortex south (again) next week with a burst of even colder ...

It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.

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

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

Our next outbreak of bitterly air will arrive next week, plunging temperatures well below average for a time. But where does this cold air come from? It has an Arctic origin near the North pole! A ...

NEW ORLEANS -- The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar ...

After highs Tuesday and Wednesday of 19 and Thursday of 30, Friday’s forecast for the Baltimore area calls for a mostly sunny ...

The polar vortex is always around. It is a channel of strong winds high up in the atmosphere that circles the poles. One over ...