North Carolina's first freeze typically occurs between late October and mid-November, depending on the specific location. The ...

The polar vortex is stirring up and bringing the earliest signs of changing weather. Here's when and what to know about the first frost in Pennsylvania ...

In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is "ramping up from its summer slumber," said meteorologist Judah Cohen in an ...

The polar vortex is a broad, fast ribbon of cold air that encapsulates the Arctic high in the stratosphere. Stable, it confines cold air near the North Pole. Unstable, it is rocked and stretched out ...

The polar vortex is shifting — and its impact could be devastating. This documentary explores how it may transform weather and climate this decade.

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

A schematic of temperature measurements shows how it is 40 degrees Celsius colder inside the north polar vortex (indicated by the yellow line) compared to outside the vortex. A rare glimpse into the ...

The weather body has now released the three-month UK outlook for October to December, with the possibility of milder ...

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 ...