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

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

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

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

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

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

Contrary to popular belief, the polar vortex is not a rare weather event. It exists year-round but is strongest and most organised during winter, when the temperature contrast between the poles and ...

Despite being notorious for bringing brutal cold and dangerous wind chills, the polar vortex has a surprising upside.

The meteorologists said the polar vortex system is set up due north of Michigan over Canada's Hudson Bay. It's at least ...

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