The first of three rounds of bitter air has arrived, threatening record lows in cities from the Midwest to the Northeast.

Although the storm will move out of the region quickly, its impacts could cause widespread disruptions to daily life.

Three rounds of cold Arctic air from a shifting polar vortex are expected to plunge much of the central and eastern U.S. into ...

A fierce cold snap is in the forecast for the central and eastern U.S. starting around Nov. 8, forecasters warned, with record-breaking cold possible. The outbreak will bring the most significant ...

A harsh drop in temperatures is being delivered to the eastern two thirds of the country thanks to a polar vortex dipping down from the Arctic. Record cold high temperatures on Monday and Tuesday are ...

Stay ahead of severe weather with our interactive tracker, which monitors winter weather across the United States ...