Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures as tens of millions of residents along the East Coast contend ...

Several businesses and organizations have announced closings and cancellations ahead of the extremely cold temperatures.

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

Polar vortex brings frigid air to US, making Trump's inauguration coldest in 40 years, moved indoors due to cold.

Here is what is and isn't a polar vortex when Colorado receives cold like what is forecast for the holiday weekend.

A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.

With the next Arctic Outbreak looming close, we take a dive into what the Polar Vortex is and how it will affect our area: ...

According to the European model, there's a chance that the air temperature at MSP could hit -20°F for the first time since ...

The polar vortex will soon elongate over North America with a dangerous cold moving into sections of Canada and the U.S.

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

It’s a pattern responsible for holding back the coldest temperatures on the planet. The lowest readings ever recorded in Canada and around the northern hemisphere occurred when this Arctic feature ...