The outdoor report for Mason County is sponsored by Superior Electric of Ludington: 231-845-0126; www.supelectric.com. The National Weather Service in Grand Rapids has issued a flood advisory for the Pere Marquette River near Scottville until Friday afternoon. At 5 a.m. Thursday, the stage was 4 feet, bank full stage is 4 feet. Flood stage is 5.5 feet. The river is expected…