Ahead of the main cold front, a separate storm formed into a supercell southwest of Williamsford in Grey County, likely triggered by the aging squall line further west. Then, at about 5:50pm, a funnel cloud touched down about southwest of Williamsford. Only sporadic tree damage took place at this point. The storm was high-based, and there was a large gap between the tornado and the core of the storm which was consistent through much of the tornado's life. The wall cloud was large and showed clear signs of rotation.