A deep trough has flooded the southeastern U.S. with incredibly abnormal cold for the past few days. Cold air sagging south out of Canada will bring a sustained and widespread cold snap to the U.S ...

Eastern Louisiana and Mississippi are facing the highest threat of tornadoes ... Saturday across the central Gulf Coast States, the Deep South and the Tennessee Valley. Numerous tornadoes were ...

The Democratic Party has reached an all-time low in popularity, NBC News polling shows. Plus, threats of retaliation after ...