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 ...

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.

Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures as tens of millions of residents along the East Coast contend ...

A major cold blast is in store for millions of Americans as a lobe of a polar vortex will bring brutally cold temperatures to ...

Snow and winds are likely to disrupt traffic, trigger flight cancellations, and cause headaches for people traveling to D.C.

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...

There are a few additional things to know about the weather associated with the Polar Vortex this time. Firstly, the Great Lakes’ surface water temperatures are still near 40 degrees.