An Extreme Cold Warning starts overnight as an Arctic front will bring the coldest weather the Chicago area has seen since 2019.

The meteorologists said the polar vortex system is set up due north of Michigan over Canada's Hudson Bay. It's at least partly responsible for the frigid temperatures around the region that contributed this week to a 100-vehicle pileup in southwest Michigan and led the city of Detroit to declare a cold weather health emergency.

Pipes can freeze when the temperature outside dips below -6 degrees Celsius for an extended period of time ( more than four hours ). As temperatures drop, it can take less time for pipes to freeze, increasing your chances of not only a nuisance but a costly home repair.

As a winter storm approaches Western North Carolina and other regions, here's what to know about deciphering forecaster terms.

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

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

Large swaths of the United States will get an arctic blast this week, leading to heavy snow, sleet, and freezing rain in parts of the country. Here’s what that means for travelers.

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is the Polar Vortex, exactly?

Extremely cold air is going to take over Michigan, as the center of the Polar Vortex drops far south. The center of this swirling vortex will come as far south as Lake Superior. When the center of the Polar Vortex is so close to Michigan,