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 ...

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

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

The polar vortex is a large area of low pressure and cold air that always exists in the Earth’s polar areas. The polar vortex typically stays above the Earth’s surface, in the atmosphere ...

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 vortex is a large area of low pressure and cold air that always exists near the poles but weakens in summer and strengthens in winter, according to the National Weather Service.

Metro Vancouverites may face unseasonably cold weather as February continues thanks to the stratospheric polar vortex.

The long-range data shows we may be done with a true Arctic air mass similar to what we experienced in January. But we ...

Georgia has officially seen snow. But as the next cold front arrives, will the state see more? Here's what you need to know.