A huge storm system crossing the U.S. threatens to unleash tornadoes Friday in the Mississippi Valley, blizzards in the ...

Winter storm aims arctic blast at large swath of US The National Weather Service issued an extreme cold warning for several states in the Central U.S. as a storm moves east. Niki Gunter ...

Several states along the Atlantic Coast were set to receive up to a foot of snow as much of the central U.S. faced dangerously cold temperatures.

The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms ...

The polar vortex could bring a cold blast to millions across America in the second half of March, AccuWeather said in a media ...

Winter storm weather map, Feb ... hypothermia as Arctic blast hits US Many cities recorded record low temperatures Wednesday morning, including: minus 24 degrees in Rapid City, South Dakota ...

This huge, multi-day storm system may bring blizzards, tornadoes, flooding and even fires across much of the United States.

A strong storm system is expected to “blast through” Los Angeles and Orange County tonight, bringing a heavy dose of rain ...

More than 140 million Americans were under weather alerts on Monday. More than 140 million Americans were under alerts Monday for high winds, extreme cold and a new winter storm as the weekend's ...

At least nine people have died in the most recent round of harsh weather to pummel the US, including eight people in Kentucky who died as creeks rose from heavy rain and water covered roads.