Chicagoans are no strangers to cold weather, but some of the terminology used to describe frigid conditions can be confusing. That’s why experts from the National Weather Service’s Chicago office — ...

Much of the country will be hit with extreme low temperatures over the next week as a polar vortex sends cold air down from the North Pole. Real feel temperatures throughout the northeast, including ...

In recent years, most people have heard the phrase “the polar vortex”, which has made regular appearances in media headlines, often with an exciting, albeit sometimes ominous “Day after Tomorrow”, ...

With the winter on the horizon and the onset of colder temperatures drawing near, U.S. residents may question just how chilly it could become in the states this season. One factor that plays a role in ...

The Northeast is plunging into a deep freeze. Here’s what scientists know, and don’t know, about the role of rapid Arctic warming. Average temperature forecast for Feb. 3-5 95°F -50°F 32°F The polar ...

MACON, Ga. — With more talk of cold temperatures and a few icy events across the United States, it's possible you have heard one specific term floating around: the polar vortex. At first glance, this ...

COLUMBUS, Ohio — Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into central Ohio and much of the northern 2/3 of the United States and bringing teeth-chattering but ...