Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into the United States for an extended visit ...
A huge swath of the United States was blasted with ice, snow, and wind on Monday as the polar vortex that dipped south over ...
Large parts of the northern hemisphere were at a standstill this Monday, Jan. 6 after a polar vortex triggered a blizzard and record snowfalls. Much of the eastern and southern U.S. was hit a day ...