Winter hasn't even officially started, but parts of the country are already bracing for what could feel like the deep freeze ...

The Upper Midwest and Northern Plains have been hit by Canada's freezing temperatures. On Thursday, Dec. 4, wind chills ...

That’s what’s happening this weekend: a stretched polar vortex is helping send arctic air deeper into the United States, ...

Arctic wind patterns create a sort of wall around the pole that prevents frigid air from trickling southward. That wall that ...

Cold temperatures are set to continue into the weekend, but New England will feel another icy blast of Arctic air Sunday ...

The United States is expecting another hit by the polar vortex starting this weekend. Here's what's expected in South ...

The phrase "polar vortex" has captured public attention and is now often misused to describe short-term bouts of frigid weather.

The first of three rounds of bitter air has arrived, threatening record lows in cities from the Midwest to the Northeast.

Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to ...

This dramatic-sounding phenomenon is a naturally occurring component of the Earth’s atmosphere that can play a huge role in the type of weather we experience in the US.

This is what a split in the polar vortex looks like! Highlighted by the red boxes, you can see two distinct circulation centers, versus strictly one. This allows for cold air to flood southward into ...

January 2025 has been the coldest since 2018 and the fourth-coldest since the turn of the century. It looks like it could get even colder heading into next week. Within the last decade, the phrase ...