A rare and powerful stratospheric warming event appears to be unfolding high above the South Pole – and it could have a knock ...

Summer may end on a cooler note for parts of the U.S., with meteorologists suggesting that a weakened polar vortex could ...

Stratospheric warming high above Antarctica could cause the Southern Hemisphere’s polar vortex to weaken at an unusually fast ...

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. When will Wisconsin see its first ...

New Yorkers are already looking to winter and the question remains as to what kind of winter it will be - balmy or bitter?

HOUSTON, Texas (KTRK) -- With this most recent freeze now behind us, many Houstonians are probably wondering if another freeze could impact them this winter. When it comes to freezes, forecasters ...

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. What does that mean for Vermont?

It's already a lot to endure frigid winter conditions, but what happens when we get an unwelcome visit from an even colder spell of air like a polar vortex? "A polar vortex is simply that: a vortex ...

As winter approaches, the polar vortex is making headlines once again, stirring discussions about its impact on temperatures across North America. This phenomenon, which dominated conversations last ...