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

A fresh blast of Arctic air is poised to spill across a wide swath of the United States, and the latest polar vortex map ...

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

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

HOUSTON, Texas (KTRK) -- Last week, the city of Houston and much of southeast Texas received record snowfall during a rare Gulf Coast snowstorm. With this being the second time temperatures dipped ...

Scientists are still trying to understand the atmospheric disturbances. A significant change in the atmosphere means the weeks after Thanksgiving could be colder and snowier than normal across ...

In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is "ramping up from its summer slumber," said meteorologist Judah Cohen in an ...