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

A powerful winter storm, influenced by a polar vortex, is impacting much of the U.S., bringing heavy snow, ice, and extreme ...

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

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.

What is polar vortex and how much snow is expected in US? A winter storm linked to polar vortex disruption has impacted ...

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

The polar vortex is bringing bitter cold and snow to NJ this weekend. Here's the weather forecast, from timing to how much snow will drop near you.

Extremely cold air is going to take over Michigan, as the center of the Polar Vortex drops far south. The center of this swirling vortex will come as far south as Lake Superior. When the center of the ...