RedactedNarrative: All the boat occupants had been consuming alcoholic beverages throughout the day.  The three passengers stated that the three males in boat (Operator and two passengers) had also taken Adderall at some point in the day.  A severe thunderstorm front was approaching the lower bay of Green Bay.  Operator of the boat allowed Passenger to operate the boat has he attached and secured the boat cover to protect the boat occupants from the elements.  The operator resumed operation of the boat after the boat cover was in place. 
  
  Crash Investigation:
  
  It appears the boat was traveling in a southeast direction, parallel to the shipping channel and north of the Cat Island break wall.  The weather conditions of heavy rain, strong winds, and three to five foot waves, would have reduced visibility.  With the boat cover on and secured, visibility was reduced to the windshield with no installed wipers.  There was no electronic navigation aboard and it is unknown if a cellular phone with GPS was used.  The boat struck the Cat Island break wall approximately 100 yards west of the shipping channel.  The boat struck the break wall with enough speed to allow the boat to ramp up the side of the break wall and come to a rest across the causeway approximately eight to ten feet above the waterline.  Operator and passenger were ejected from the boat.  (Noted – There are no lighted navigational aids or sound warning devices located on the Cat Island break wall.)
  