The polar vortex is a huge area of cold air high up in the atmosphere that usually spins over the North Pole. Its position ...

A fast-moving clipper system is expected to bring powerful wind gusts and a shot of snow to the Great Lakes and Northeast — ...

The Polar Vortex is expected to be impacted by a Sudden Stratosphere Warming, bringing cold air to the eastern US.

Snow showers could develop Friday night, followed by bone-chilling winds that could make it feel like -159 degrees.

The Polar Vortex is expected to be impacted by a Sudden Stratosphere Warming, bringing cold air to the eastern US.

The rare occurrence has only struck three times during the era of modern records, and not since 1996.

There's the possibility for some thundersnow Friday, which would bring a burst of snow to coat the road where it happens.