Cold temperatures are expected to last through the end of the month — and forecasters say that there's a potential for snow ...

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

Ben Gelber, a meteorologist for NBC4 in Columbus, Ohio, and a Pocono native, said the polar vortex is a large, circular pool ...

In the coming weeks, cold air will continue for parts of the U.S. thanks to the influence of the polar vortex.

A fresh blast of Arctic air is poised to spill across a wide swath of the United States, and the latest polar vortex map ...

Colder air is returning to the central and eastern U.S. as the polar vortex becomes more active, bringing fluctuating ...

The polar jet stream, which is affected by the polar vortex above it, has become quite wavy, allowing Arctic air to ...

A fierce Arctic blast of bitterly cold air is poised to overtake much of the central, eastern and southern U.S. over the next ...

A long-awaited blast of cold air, courtesy of the polar vortex, will overtake much of the US, but the forecast says the low ...

Each of these lobes of the Polar Vortex will bring two or three days of bitterly cold, below-normal temperatures. We aren’t ...

This coming weekend, the central and eastern United States will receive a blast of Arctic air, which will also affect ...

HOUSTON, Texas (KTRK) -- Over the past week, viewers have been coming to the ABC13 Weather Team with questions about a possible arctic blast later this month. Those rumors came from a weather blog in ...