Forecasters are warning that the breakdown of the polar vortex high above the Arctic will not bring relief from winter, but ...

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

Sudden stratospheric warming is expected to keep a weakened vortex splintered, plunging the region back to record-breaking ...

The bitter cold temperatures that have left a chill over the eastern half of the country aren’t going anywhere, as a major disruption to the Polar Vortex is coming this month.

What is the polar vortex? Mississippi weekend weather forecast calls for winter storm with lows in the teens, paired with ...

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

A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what could happen.

The west half of the country, including the Midwest, will start to warm up. But that won't be the case for the East Coast. Here's the forecast.

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

Starting Thursday, dangerously frigid air from Siberia and the North Pole is forecast to plunge the Great Lakes region into ...

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

The bitter cold temperatures that have left a chill over the eastern half of the country aren't going anywhere, as a major ...