RedactedNarrative: Driver of vessel #1 (PWC) was operating westbound on Potters Lake near the north shoreline in front of Potters Lake Campground within 100’ of the shore.  Vessel #1 struck a tree that had previously fallen into the water.  The PWC struck the tree.  The driver was struck by the tree and knocked into the water.  The PWC continued approximately 100’ feet and stopped.  The driver was removed from the water by campers at Potter’s Lake campground.  Lapeer EMS arrived and transported victim to McLaren-Lapeer.  Victim was wearing his life jacket.