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.

Cold temperatures are expected to last through the end of the month — and forecasters say that there's a potential for snow ...

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

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

A fresh blast of Arctic air is poised to spill across a wide swath of the United States, and the latest polar vortex map ...

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

HOUSTON, Texas (KTRK) -- Over the past week, viewers have been coming to the ABC13 Weather Team with questions about a possible arctic blast later this month. Those rumors came from a weather blog in ...

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

When the polar vortex breaks, Artic air come south. Here's what to know right now.