A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar ...

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

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

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.

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

As a winter storm approaches Western North Carolina and other regions, here's what to know about deciphering forecaster terms ...

Meteorologists said the eastern two-thirds of the nation is threatened with a winter storm that could rival the damage of a ...

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

Climate deniers are quick to say ‘I told you so’ when the mercury drops. But a warmer planet impacts weather in ways that can seem counterintuitive. Record cold temperatures are once again expected to ...