RedactedNarrative: Vessel 1 was heading up river after leaving the no wake zone near Blackhawk Island.  Vessel 2 was coming down stream and came off of plane in anticipation of the no wake zone.  Vessel 1 turned into the wake and subsequent roller caused vessel 1 bow to come out of the water and slam down twice.  Victim was bounced up off her seat and then back down again onto the seat hard causing injury. Vessel 1 operator called 911 and had EMS meet him at the landing.  Incident was not reported to WDNR until 8/9/2018, no other information available on Vessel 2.