The polar vortex is making a return to the forecast, but the counterintuitive weather feature is nothing to fear.

Bitingly cold Arctic air keeps pummeling the U.S. with ruthless cold snaps—despite warming winters nationwide. A study explains why: the solution lies far above your head, in the upper atmosphere ...

The polar vortex is beginning its seasonal strengthening, signaling a gradual shift toward cooler weather. Frost advisories were issued in parts of the Great Lakes region, New York, and New England as ...

At the end of September, cold air at high altitudes above Antarctica had soared to more than 60 degrees above normal. It is a ...

" Quiet and dry weather will persist through midweek; however, there will be more cloud cover," posted the NWS in Marquette ...

A rare glimpse into the wintry conditions of the Mars north polar vortex has shown that temperatures inside the vortex are far colder than outside, and that the permanent darkness that winter brings ...

Tornadoes on the outer edges of a typhoon's spiral rain bands are a severe convective weather phenomenon that occurs on the ...