Part of Mississippi under extreme cold warning after winter storm dropped snow across the Gulf Coast. When will temperatures ...

Even if you didn't see snow, the Arctic air blast from the polar vortex is still here. See how to get ready for the cold.

A dangerous and potentially life-threatening stretch of cold weather has much of the U.s. on alert as a lobe of the polar vortex invades ... Plains and Mississippi Valley, and the East Coast ...

Several Gulf states experienced a major snowstorm this week. Changes in global climate patterns can be connected to weird ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not seen ...

Frigid temperatures engulfed the South on Monday ahead of a winter storm that’s expected to spread heavy snow and disruptive ...

Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from ...

Nearly 2,000 flights into and out of states impacted by Winter Storm Enzo have been cancelled today, as this rare storm ...

A winter storm will bury parts of the Deep South with snow through early Wednesday. Here’s a forecast for key cities in its ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame. Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET.

Keim says this blast of cold air likely came from the Arctic as part of the “polar vortex.” The “polar vortex” is an area of cold air and low pressure that always exists around the Earth ...