A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout the Milwaukee area closed as the area braced for the dangerous freezing ...

Even if you didn't see snow, the Arctic air blast from the polar vortex is still here. See how to get ready for the cold. When will Mississippi get warm?

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

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

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

Parts of Mississippi can expect snow, below-freezing temperatures, lows in the teens next week. Know how to prep your home, family, pets for the cold.

Americans were bracing Thursday for frigid temperatures that forecasters said could produce life-threatening conditions, with ...

Some of the coldest air that we've seen so far this winter looks to be paying the Garden State a visit early next week.

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

ANNAPOLIS, Md. (AP) — A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies ...

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