A winter storm sweeping through the U.S. South on Tuesday was dumping snow at levels millions of residents haven’t seen ...

The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...

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 ...

In Indiana, around zero degrees was likely, the map showed, with temperatures of around three degrees possible in Northern ...

Central Indiana once again had highs around 40° on Saturday. However, this was early, around 12-1 a.m., before a cold front ...

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

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Forecasters predict another ...

Dozens of US states will endure the lowest temperatures they have felt in years next week as a polar vortex brings ...

Any sort of wind along with the bitter cold will make for frostbite in as little as 15 to 20 minutes in the incoming arctic ...

Florida's manatee population is seeking warmer waters due to a polar vortex, with many gathering near power plants. The species is still recovering from a mass starvation event.