A blast of polar vortex cold air is expected to hit parts of the country around Thanksgiving. What to expect in Tennessee.

Winter weather is officially here in Indiana, and for the foreseeable future, it looks like it plans to stick around. Learn ...

Temperatures across Indiana are set to be even colder tonight, as temperatures plunge into single digits and at the zero mark ...

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to ...

"Cold air is spilling into the central and eastern parts of the country, coming down from the Arctic," he said. The deep ...

Just in time for Thanksgiving week, another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to Indiana — possibly beginning during the ...

A polar vortex has brought a severe Arctic chill to central and eastern U.S., setting record low temperatures in several states. This unseasonable cold originated from fluctuations in polar air ...

In Indiana, storms brought scattered snow across the state. Use our interactive tool to search by address and see how much ...

According to a forecast map shared by the agency, the states with the highest probability of seeing below average ...

High above the North Pole, about 10 to 30 miles above Earth’s surface, sits a massive whirlpool of icy air known as the polar ...

A strong polar vortex doesn't cause cold weather — it does the opposite. Here's what to know about polar vortices, how they work.