Harsh cold descended on the nation's midsection Monday as a polar vortex gripped the Rockies and Northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 17 ...

Extreme cold warnings were issued for an 11-state swath of the U.S. stretching from the Canadian border to Oklahoma and ...

Dozens of schools have canceled classes Tuesday as dangerous cold settles in around Metro Detroit. See the list here: ...

“A Cold Weather Advisory has been issued for the Saginaw Valley and Thumb regions where dangerously cold wind chills as low ...

Lake-effect snow showers and drifted roadways could close some lakeshore-area schools Tuesday, while temperature-related closings are unlikely.

Even when it's very cold outside, most people can safely walk or exercise outside in the winter, but not when the wind chill is well below zero.