"Deadly Winter Storm Blankets U.S. from South to Northeast"

Snowfall and freezing temperatures have blanketed parts of the United States, from Louisiana to Michigan, with more wintry weather expected. Arctic air has brought extreme cold to much of the country, leading to treacherous driving conditions and power outages. The snowfall is the result of various weather systems, including Arctic cold from the north and lake effect snow near the Great Lakes. More snow is expected in the Appalachians and Mid-Atlantic, with sub-freezing temperatures persisting in many areas. The National Weather Service warns of dangerous cold weather across the Midwest and Deep South by the end of the week.