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 ...

Polar Vortex Makes Much of US Colder Than Greenland ... the capital of Greenland — a giant ice-covered northern island that President Donald Trump is seeking to acquire — was 11 degrees ...

Protesters against President Donald Trump and his policies braved frigid temperatures to demonstrate Monday at rallies ...

WASHINGTON – The polar vortex hit its peak across much ... a giant ice-covered northern island that President Donald Trump is seeking to acquire — was 11 degrees (6 degrees Celsius) warmer ...

Harsh weather moved west on Monday as a polar vortex was expected to grip ... stranded by floods had to be rescued. President Donald Trump approved Kentucky's request for a disaster declaration ...

BISMARCK, N.D. (AP) — Harsh cold descend 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 ...

Harsh weather moved west on Monday as a polar vortex was expected to grip ... stranded by floods had to be rescued. President Donald Trump approved Kentucky’s request for a disaster declaration ...