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

The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher latitudes but is ...

"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...

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 not synonymous with cold snaps, but when it slides toward the United States, the polar jet stream can ...

You might have heard the term “polar vortex” thrown around during the winter months, but what does it really mean and how ...

BISMARCK, N.D. — Harsh cold descended on the nation’s midsection Monday as a polar vortex gripped the Rockies and Northern Plains on the heels of weekend storms that pummeled the Eastern U.S ...

A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move into the central and eastern states this week, bringing some of the coldest air of the ...

he term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region, enveloping the North Pole The term “polar vortex” usually refers to the ...

More than 95 million people in the U.S. are facing gripping cold Tuesday as a polar vortex sends temperatures plunging to record levels, closing schools, bursting pipes and forcing communities to ...

The term "polar vortex" usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps some of the coldest ...