A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar ...

Tens of millions of people are in the path of a major winter storm. Federal cuts threaten efforts to understand the causes of such weather.

The meteorologists said the polar vortex system is set up due north of Michigan over Canada's Hudson Bay. It's at least ...

A polar vortex could bring the coldest January the U.S. has faced in years. National Weather Service experts told Newsweek that Americans can expect a colder-than-average start to the new year. So far ...

With over 170 million Americans facing below-average temperatures, even colder air may be on the horizon thanks to the displacement of the polar vortex that will lock in the feel of winter and park ...

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