South Florida faces an Arctic blast and polar vortex. Will this cold snap lead to an ultimate measure of cold weather here?

The plunging polar vortex brought subfreezing temperatures Tuesday to some of the southernmost points of the U.S., threatening to dump snow on parts of Texas and Oklahoma in the coming days and ...

Polar vortex brings subfreezing temperatures, snow to southern U.S., causing power outages and travel disruptions.

Trump won't rule out military use in Greenland, Panama Canal; Jimmy Carter's casket arrives at the US Capitol; Large blaze in Los Angeles prompts evacuations; Polar vortex brings bitter cold to the ...

In our news wrap Tuesday, residents are fleeing the hills of Los Angeles after the Palisades Fire exploded in size to more than 700 acres, a so-called polar vortex is bringing freezing temperatures as ...

The immense storm system brought disruption to areas of the country that usually escape winter's wrath, downing trees in some Southern states and threatening a freeze in Florida.

Arctic winds from a powerful polar vortex are sweeping across several states, bringing dangerously cold temperatures and ...

According to a National Weather Service map, visualized by Newsweek below, 17 counties are under freeze warnings in Florida, ...

Some experts say the frigid air that normally stays trapped in the Arctic escaping is happening more frequently because of a ...