A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, ...

A polar vortex is hitting the United States. Carolyn Kaster/AP A polar vortex is a stream of cold ... can disrupt weather patterns. According to the Windy weather map, temperatures are currently ...

Brits could face several inches of snow in the coming days according to shocking new weather maps, with forecasters also ...

Most notably in winter months, the circling vortex of cold air can break down, causing the polar jet stream to become "wavy", stirring up extra-chilly weather at lower latitudes, including North ...

you can thank — or blame — the polar vortex and its interaction with the jet stream. This dynamic duo plays a huge role in shaping winter weather patterns and determining whether we’ll be ...

“Some of our coldest weather has been when the jet stream gets buckled really far south,” Ballard said. When the polar jet stream reaches as far south as Kansas or Nebraska, it can bring ...

This wobbly or weak pattern in the jet stream means that more arctic air and stormy weather are in the forecast. However, the polar vortex is hard to predict past two weeks. There is no need for ...

It’s the "Bleak Midwinter" in the Northern Hemisphere – so, in case you’ve been living under a well-insulated rock, cold weather and snowfalls are hardly unexpected in many parts of the world.