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

Forecasters warn that a split polar vortex is set to bring a 'large supply of cold air' to North America in mid-February as a ...

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region up north. This ...

A polar cold wave is sweeping across the country, freezing everything. Starting today, snow will fall at a rate of 2 cm per hour, particularly along the coasts of Jeju, Honam, and South Chungcheong, ...

Abnormal weather events and severe winter storms could be caused by a disrupted polar vortex. Find out here how the polar ...

Answers as to why these strange temperatures and weather events are prevalent may be found in the polar vortex. The U.S. National Weather Service says that "vortex" refers to the counter-clockwise ...

Answers as to why these strange temperatures and weather events are prevalent may be found in the polar vortex. The polar vortex is a large area of low pressure and cold air surrounding both of ...