Have you ever seen a 'steamnado' before? The Texas winter storm caused one to appear over Lake Lewisville on Sunday.

Extremely cold air is going to take over Michigan, as the center of the Polar Vortex drops far south. The center of this ...

A so-called 'steamnado' popped up over Lake Lewisville on Saturday as the winter storm impacted weather across North Texas.

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

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

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march ...

Old Man Winter appears to be winding up for the second of a one-two punch to start the week, with the blizzard conditions that hit Monday followed ...

Lake-effect snow continues to hammer parts of Michigan as Arctic air remains locked over the Great Lakes, keeping snow bands active and dangerous wind chills.