The harsh weather was caused by the polar vortex expanding southward. — The polar vortex is a vast area of low-pressure, cold air that rotates like a wheel around both of the Earth’s polar regions.

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 ...

This cold was certainly extraordinary, but the polar vortex event of January 2019 brought life in the northern and central United States to a frozen halt. At that time in our area, the coldest actual ...

As more Arctic air masses flow into the WOWK-TV region, you have undoubtedly heard the term “Polar Vortex” brought up in the ...

But during the winter, it is joined by a second atmospheric phenomenon dubbed the polar vortex. This swirl of frigid air, located more than 10 miles above Earth’s surface, strengthens each year ...

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 ...

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

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

The polar vortex has shifted, spilling cold air across the U.S. with below freezing temperatures and subzero wind chills. The polar vortex is a ring of cold air that typically circles the Arctic.

One of the key players in these dramatic shifts is something called the polar vortex. The polar vortex is a massive area of cold air located high in the atmosphere, typically spinning over the ...