A major winter storm slammed the southern United States Tuesday, blanketing parts of the Gulf Coast with record-breaking snowfall in a region largely unaccustomed to extreme winter weather.

Weather forecasters and public agencies issued health and power loss warnings Tuesday as a “rare winter storm" gripped parts ...

As the snow diminishes, life-threatening travel conditions and extreme cold temperatures persist. Most roads are snow-packed and icy, with black ice expected to form overnight as any melting refreezes ...