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 ...

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 ...

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 ...

Millions of people across the northern Gulf Coast braced Tuesday for a rare winter storm that's expected to scatter heavy ...

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 ...

Jan. 18: A polar vortex is set to impact much of the US ... In a tweet from the service, the strong cold front will bring ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

A brutal polar vortex is set to bury the Big Apple ... The cold blast will send at least 20 states from the Plains to the Great Lakes and the Northeast into a deep freeze, with the mercury ...