When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...

Frigid temperatures are expected to impact much of the central and eastern United States in the coming weeks. The first of three polar vortex systems is expected this month, according to AccuWeather.

Florida State University researchers have discovered how to accurately predict winter weather forecasts months in advance, ...

(CNN) — High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

The snow has melted, the air is warm, and the first day of spring 2026 is near, but don't pull out the swimsuit just yet, because "false spring" in New York will be disrupted by the polar vortex split ...

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 stirring up, bringing the earliest hints that the weather is changing with the new fall season. In the short term, this means gradual cool-downs and a more active storm track ...