Climate change has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years and that may explain why long-range computer forecasts ...

What is a polar vortex collapse and why does it affect weather so dramatically?

The United States has been at the epicenter of the planet’s most unusually cold conditions early in 2025. The polar vortex is to blame.

The polar vortex has taken on an unexpected pattern this winter - one that’s made part of the United States the most unusually cold place on the planet, at least so far this year. While the ...

The polar vortex has returned to the U.S., and frostbite-inducing temperatures are blasting millions of Americans.

DES MOINES, Iowa — The coldest burst of Arctic air this season is coming to put an icy exclamation point on America's winter of repeated polar vortex invasions, meteorologists warn. And it will ...

America is bracing for a brutal Arctic blast with dangerously low temperatures as a massive polar vortex smashes the country. Chicago alone could face -20 to -30-degree temperatures next week in a ...

The coldest burst of Arctic air this season is coming to put an icy exclamation point on America’s winter of repeated polar vortex invasions, meteorologists warn. And it will stay frozen there ...

This will be the 10th time this winter that the polar vortex — which keeps the coldest of Arctic air penned in at the top of the world — stretches like a rubber band to send some of that big ...