To understand what Americans are experiencing with this winter blast, we need to look more than 20 miles above the surface of ...

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

Climate deniers are quick to say ‘I told you so’ when the mercury drops. But a warmer planet impacts weather in ways that can ...

The sudden blast may come as a shock to many Americans after a mostly mild start to winter, but that warmth may be partly ...

A 2025 satellite image shows a series of ghostly ice swirls sculpted on the surface of Lake Michigan by strong winds during an extreme cold snap that covered Chicago in a blanket of snow.

A rare and exceptionally early disruption of the polar vortex is sending brutally cold air across much of the United States, marking one of the earliest notable polar vortex disruptions observed since ...

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

Powerful winter storms which led to deaths and power outages in the UK and Ireland were made more likely by an intense swirling vortex of winds miles above the Arctic, say scientists. Powerful winter ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe. When you ...

Jupiter and Saturn's different polar storms reveal clues about planet interiors: Saturn has harder bottom than Jupiter.