Forecasters warn that a split polar vortex is set to bring a 'large supply of cold air' to North America in mid-February as a ...

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

Most of the US will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send temperatures tumbling below freezing for most of the nation starting this ...

A big reason is we have another lobe of the Polar Vortex that is going to shift south into far southern Canada. This lobe of ...

A lobe of the polar vortex, a stormy ring that typically keeps ... such as Dallas and Atlanta, could be hit by more wintry weather in the week ahead. With the storm’s puzzle pieces still ...

Americans have been warned to brace for more winter storms as Arctic winds are set to dump more ice and snow amid freezing temperatures.

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

Jan. 18: A polar vortex is set to impact much of the US. Click here for the latest update ... forecasts for parts of the U.S. that may be hit hardest with snow and ice amid the impending winter ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...

You may have seen social media posts about it and chatter of big weather pattern changes heading our way, but what's really ...

The long-range data shows we may be done with a true Arctic air mass similar to what we experienced in January. But we ...

Burr! The weather outside is frightful. Stay warm and chic, courtesy of this roundup of brand-new winter essentials — details!