Meteorologists had predicted that parts of the U.S. would experience the 10th and coldest polar vortex event this season.

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a ...

The polar vortex is coming back. After a half-month hiatus, frigid air will again surge across the United States beginning this weekend through next week, as the unusually cold blob of air dips ...

So I was thrilled to see the initial designs of Vortex’s new Viper red dot. This enclosed emitter is built from a single piece of 6061 aluminum and mounts directly to the receiver of most shotguns — ...

With the upcoming chapter of Boruto being possibly the most exciting one yet, here is when and where to read it.

Above: A Von Karman vortex street downwind of the Canary Island chain in the eastern Atlantic Ocean off the coast of Africa on Feb. 27, 2015. Image credit: NASA Worldview. Editor's note ...

The latest blast of frigid air will linger across the central and eastern U.S. through much of the week while another winter ...

Douglas McIntyre, Editor-in-Chief at Climate Crisis 24/7, reports that historic cold temperatures across the U.S. are ...

The National Weather Service St. Louis office forecast says Belleville had a wind chill of 7 degrees below zero Tuesday ...

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 ...

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 ...

The snow-covered Peace Monument outside the Capitol on Feb. 12. (Jacquelyn Martin/AP) ...