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 ...

A series of cold fronts the last few weeks has kept Florida downright chilly, as another winter storm starts to take aim this ...

The polar vortex is a low-pressure system of cold air that swirls above Earth’s poles. There’s one over the South Pole in Antarctica – but for this story, we’ll be focusing on the one ...

The polar vortex can be a powerful source of winter weather, but it's not the only cause of severe cold and snow in regions better known for warmth and sunshine. The Gulf Coast states are still ...

Life-threatening' cold temperatures generated by a polar vortex will be fueling ... like temperatures plunging well below zero. Antarctica 'super vortex' is speeding up due to climate change ...

frigid air pushes southward toward the U.S. What's the difference between an Arctic air mass and the polar vortex? Arctic air masses originate over the Arctic or Antarctic regions and are very cold.

Any sort of wind along with the bitter cold will make for frostbite in as little as 15 to 20 minutes in the incoming arctic ...

The coldest weather of the season to date will be due to a phenomenon called a polar vortex, an upper-level jet stream that typically circulates around the North Pole and South Pole, but can push ...

Here is what is and isn't a polar vortex when Colorado receives cold like what is forecast for the holiday weekend.