As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of Earth’s poles 10 to 30 miles above the surface. The term vortex is used to ...

It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here’s why it keeps happening.

The mysteries of Earth’s weather patterns have fascinated humanity for centuries. Among these patterns, the jet stream stands ...

Sea ice extent is at record, and near record, lows for this time of year in both polar regions, leaving the planet ...

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.

Prepare for a return of frigid weather in March—and April.AFP—Getty Images Editor ... sudden stratospheric warming (SSW). The SSW more powerfully weakens the polar vortex, slowing the spin ...