Its strength and position shift with the seasons, according to the National Weather Service. When the vortex is strong, the ...

As the polar vortex begins to stir, subtle clues point to the coming seasonal shift. So, when will freezing temperatures ...

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

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

BOSTON (AP) — The northeastern U.S. is about to get a cold spring farewell from winter’s bad boy, the polar vortex, which could bring rare May snowfall and record-low temperatures to some areas over ...

Temperatures are staying relatively warm throughout Illinois this week, despite fall officially starting Sept. 21. But ...

The polar vortex is beginning to stir, signaling the first signs of seasonal change. Here's when to expect the first frost in New Hampshire.

Prepare for a return of frigid weather in March—and April. Prepare for a return of frigid weather in March—and April.AFP—Getty Images Editor at Large You could be forgiven for not noticing that last ...

The polar vortex, a mass of cold air over the Arctic, is strengthening as the seasons change. A strengthening polar vortex typically keeps the coldest air locked near the North Pole, leading to ...

A new weather buzzword is storming social media as Hurricane Humberto may do a giant dance with another tropical cyclone in ...

The polar vortex is starting to stir up, bringing the earliest hints that the seasons are changing. When will Ohio see its ...

You could be forgiven for not noticing that last month was the planet's third warmest February on record. That’s because local temperatures plunged during the third week of February 2025, shattering ...