The NOAA predicts above-normal temperatures in the south and up the eastern coast between December 2025 and February 2026.

According to climate scientists, record levels of Arctic ice in 2025 could increase cold spells in the United States and Europe.

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

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

The polar vortex is a large area of low pressure and cold air surrounding the Earth’s poles. Under normal conditions, it spins tightly around the Arctic. However, as the Arctic warms, this system ...

During the winter the polar vortex spreads out, shooting cold air southward. Here's what to know as we head into the cooler months in South Carolina.

Temperatures are staying relatively warm throughout Illinois this week, despite fall officially starting Sept. 21. But residents in the state know that when the cold kicks off in Illinois, it comes ...

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 ...

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 ...

In the Antarctic winter, this upper atmosphere normally stays near –55°C, held by strong polar winds and the absence of ...

The spike in temperatures this week may have Michigan residents wondering if fall will ever feel like fall. See your city's average freeze date.