Major severe weather outbreak appears likely Sunday into Sunday night, with the greatest threat expected from Louisiana east-northeastward through much of the Southeast and Tennessee Valley. Strong, long-tracked tornadoes and potentially widespread damaging wind are possible. A slight risk extends up into the Ohio valley with a marginal risk in the Cincinnati metro. Heavy rain is also forecast with this system. A freeze warning remains in effect for the Ohio valley Friday night and Saturday morning. More cold and freezing weather next week.