NORMAN, Oklahoma — Forecasters say people from near Dallas to the mid-Atlantic region could see severe weather on Friday, and the areas of greatest concern are the Ohio and Tennessee valleys.
The Storm Prediction Center said Friday that 33 million people are in areas that have at least a "slight" risk of severe weather.
Forecasters say the main concern is high winds, plus hail from storms that form in supercells. There is a slight risk of tornadoes in those storms, too, and also in squall lines that could develop. A cold front is moving through the area and is expected to break the heat in parts of the South.
The risk shifts Saturday to the coastal regions between Maryland and Delaware to the Carolinas. The middle-Mississippi Valley could see strong storms Sunday.