Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

There is a pressing need to enhance the efficiency of hydroelectric power, leading to the exploration of a range of solutions.

Ushering in the polar vortex is a winter storm, which was tracking from the Midwest toward the East Coast on Saturday. In ...

Discover the incredible story of Lake Peigneur, a drilling site turned disaster zone. In 1980, Texaco's accidental drill hit an underground salt mine, creating a vortex that swallowed the entire lake!

With an assist from a drone, one Chicago photojournalist captures the brutality and the beauty of winter in the Windy City.

A cold weather advisory is in effect until noon Tuesday, with wind chills ranging between minus 15 and minus 25 before plummeting to minus 10 overnight in outlying areas. But a warm-up is on tap for ...

More than 95 million people are facing gripping cold Tuesday as a polar vortex sends temperatures plunging to record levels, ...

The latest arctic blast will move into the northern Rockies and northern Plains Saturday and spread to the central and ...

The polar vortex is coming back ... The frigid conditions will spur the development of lake-effect snow bands, such as in New York’s Tug Hill Plateau, which has received the most snow east ...

An Arctic polar vortex has brought freezing temperatures and frigid winds to millions across the country this winter.