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

It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.

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

Arctic air surging south could glaze Colorado roads with ice in time for the evening commute Friday as Denver braces for a ...

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

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

The polar vortex is expected to reach the Utah-Idaho border sometime in the late afternoon and evening Friday as it continues ...

The coldest weather of the season to date will be due to a phenomenon called a polar vortex, an upper-level jet stream that ...

The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, ...

Snow and winds are likely to trigger flight cancellations and cause headaches for people traveling to DC for Inauguration Day ...

The polar vortex is always around. It is a channel of strong winds high up in the atmosphere that circles the poles. One over ...

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