A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the coming days.

It is forecasted to be cold in the Bay State as a result of the breaking, or "displacement" of the polar vortex. According to ...

An arctic blast is on track to bring freezing temperatures to central and eastern states.

As we look toward mid-December into January, the door is opening for some potentially significant winter weather.

A stretched polar vortex and persistent northern flow are fueling a remarkably cold and snowy start to winter across ...

Arctic wind patterns create a sort of wall around the pole that prevents frigid air from trickling southward. That wall that ...

Once every two years there is a disruption of the polar vortex. So you get very strong warming like tens of degrees Celsius ...

Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to expect in Tennessee.

The Arctic polar vortex is expected to move south, which some say will lead to the coldest, harshest winter in years. Wyoming ...

Polar vortex disturbance is causing frigid Artic air to surge southward, bringing cold temperatures and possibly snow to many ...

Frigid Arctic air is pushing south into the United States, and fortunately, it doesn't look like freezing temperatures will hit Texas just yet.