Waterford scored eight runs in the final three inning, including six in the top of the seventh, to claim the win.
Southern scored two runs in the third inning with Kelsey Strang and Lindsay Teaford each crossing the plate. Teaford would score again in the fifth inning to tie the game up at three.
Waterford scored two runs in the second inning and added a third in the fifth inning. Waterford took the lead in the sixth inning, scoring one run. The Lady Wildcats scored six runs in the final inning to seal the victory.
Southern starter Maggie Cummins pitched five innings, allowing four hits and four walks. Breanna Taylor relieved Cummins in the fifth inning.
The Lady Tornadoes were led in hitting by Strang and Lynzee Tucker with a single and a double each. Taylor, Teaford, Cummins, Kyrie Swann, and Cheyene Dunn each had one hit for Southern.
Waterford was led in hits by Wallace with two.
Southern hosts Roane County on Tuesday at 5 p.m.