The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...

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

Arctic air has brought chilling temperatures as low as 12 degrees in New York City on Monday night but are we in a polar ...

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

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...

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

Are you ready for the coming arctic storm? Here’s the latest Colorado weather forecast and everything else you need to know ...

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