It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the ...

Anytime we get an Arctic air blast down this far south, this is an artifact of the polar vortex rearing its ugly head,” said ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...

An Arctic blast that began in the northern plains on Saturday spread bitter cold from the Rockies through the East Coast and ...

A mass of air called the polar vortex has escaped the Arctic and plunged southward. Some scientists see the fingerprints of climate change.

The town of 1,400 hardy souls takes pride in the fact that because of its inversion at the base of two mountain ranges, it's ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

Frigid temperatures engulfed the South on Monday ahead of a winter storm that’s expected to spread heavy snow and disruptive ...

Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures.

With severely cold temperatures forecasted in York County this week, utility companies are advising customers to take safety ...