Forecasters have warned that a rare weather event in the form of a polar vortex will bring snow and ice to millions as it ...

A rare "daughter polar vortex" is set to plunge millions of Americans into freezing temperatures as a prolonged period of ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.

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

the polar vortex is still going to bring lower-than-normal temperatures to the Sunshine State. According to the National Weather Service in Tampa Bay, cooler than normal temperatures could be seen ...

Starting this week into next, a lobe of the polar vortex will descend into the U.S. and bring with it brutally cold temperatures. Here's the forecast for this week: ...

A polar vortex is slated to sweep most of ... chills to parts of Midwest to the East Coast, according to the National Weather Service. After descending over the Rockies and Great Plains ...

Cold air from the arctic sometimes dips southward across the American plains. What to know about the polar vortex.

The polar vortex always exists near the poles, however, it weakens during summer and strengthens during winter, says the U.S. National Weather Service,. The U.S. National Weather Service says that ...