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

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

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 ...

Parts of Mississippi can expect freezing temperatures, lows in the teens in the coming week. Know how to prep your home, ...

A polar vortex is forecasted to blanket most of ... in Chicago according to the National Weather Service, with sub-zero lows expected on Sunday and Monday night. Apart from the sub-zero lows ...

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

Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout ...

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 ...

Polar lows are intense, small-scale cyclones that typically form over the ocean in high-latitude regions, particularly during winter. These weather systems can have significant impacts on coastal ...

Polar vortexes happen when low pressure and cold air near the North Pole move toward the contiguous U.S., as noted by the National Weather Service. Utah is usually protected from these vortexes ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...