This cold blast could be relatively short-lived, with a return to more typical wintry temperatures by later in December.

"Arctic air will bring near record cold temperatures and dangerous wind chills," the National Weather Service said.

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

Several states across the Northeast and into the Midwest are expected to experience unseasonably cold temperatures this ...

A fresh shot of Arctic air could bring the coldest air of the season for many this week, according to AccuWeather ...

A polar vortex system is expected to bring two or more cold waves to Florida this week. Temperatures in North Florida could ...

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

Much of the U.S. will experience the cold weather, with Floridians facing the threat of frost later this week.

A cold front from an expanding polar vortex brought chilly temperatures to North and Central Florida. Temperatures are ...

The polar vortex is a large upper-level, low-pressure area or circulation that typically resides above the Arctic Circle.

Temperatures in Central Texas are expected to drop by roughly 30 degrees from Saturday to Sunday.

Here is the weekend weather forecast from the National Weather Service in Memphis.