A powerful winter storm that unleashed heavy snowfall and coated roads with ice across much of Texas and Oklahoma has pushed into the South, leading governors to declare states of emergency and prompting widespread school closures.

The winter storm is forecast to spread across parts of Oklahoma, Arkansas and Texas on Friday through Saturday, according to the National Weather Service. Six to 10 inches of snow

Another blast of winter storms is closing schools, snarling flights and putting millions of residents on alert across parts of the Deep South and south-central U.S. The storm started dumping a mix of sleet and heavy snow Thursday morning in north Texas and Oklahoma,