The polar vortex, a swirling mass of cold air located over the polar regions, is responsible for the cold. COLUMBUS, Ohio — ...

The dip of Arctic air into the Midwest expanded ice coverage across all 5 Great Lakes, some seeing greater increases than ...

The recent Arctic blast transformed the Lake Michigan lakeshore in Muskegon and Grand Haven into an icy wonderland.

Traveling over our heads at hypersonic speeds beyond Mach 7, lies the future of spy plane technology. It can be anywhere in the world in one hour, enter any country unnoticed, and be out before their ...

Cold weather weary New Yorkers can look forward to a light warmup this weekend after a powerful deep freeze left temperatures ...

Record cold temperatures are expected through Thursday for two-thirds of the eastern part of the U.S., and wind chills could ...

This blast of frozen temperatures is tied to a polar vortex... but what is that? Air spins around the notoriously cold North and South Poles. When the air is spinning fast, it's stable, but when it is ...

Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout the Milwaukee area closed as the area braced for the dangerous freezing ...

The storm is expected to scatter heavy snow, sleet and freezing rain around the Deep South as a blast of Arctic air plunges ...

MINNEAPOLIS, Minnesota — Our entire region is under an Extreme Cold Weather Warning until 12 p.m. Tuesday; wind chills could fall as low as -45 degrees. This Arctic blast is thanks to a polar vortex.

Frigid temperatures engulfed the South on Monday ahead of a winter storm that’s expected to spread heavy snow and disruptive ...

A polar vortex of brutally cold air that normally ... “The arctic blast is due to first hit the Rockies and Great Plains ...