Deep penetration of cold temperatures and a coastal storm will bring bomb cyclone and polar vortex into your newsfeeds.

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

The FOX6 Weather Experts track the polar vortex and its impact on southeast Wisconsin. From emergency supplies to stick in ...

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

A collapse in the polar vortex is letting Artic air come here. What that means, and why it happens.

A winter storm descending on the US is expected to deliver heavy snow and ice to more than 150 million people across roughly ...

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

Tens of millions of people are in the path of a major winter storm. Federal cuts threaten efforts to understand the causes of such weather.

Temperatures could fall below -20 F across certain parts of North Dakota and Minnesota.

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

After this weekend's snow storm moves out, cold Arctic air will move in.

The sudden blast may have come as a shock to many after a mostly mild start to winter, but that warmth may have partly ...