A La Niña winter just started, but it isn't expected to last long. National forecasters are already looking ahead to the ...

Over 120 million Americans will face extreme cold, with temperatures potentially reaching minus 40 degrees Celsius.

Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the Northern Plains and unusual snow and ice in the Gulf Coast area.

A piece of the polar vortex is spilling into the Midwest, creating extreme cold for the Chicago area and northwest Indiana ...

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