operator Stated he was near the middle of the lake when and his passenger decied to head back towards the boat launch.  Both operator and occupant had personal folation divices but were sitting on them during the voyage.  operator said that he wasa sitting on the port side of the boat near the stern when he was decided to move to a seat at the center of the boat.  When he did this, the port side stern portion of the boat dipped into the water allowing water to enter the boat.  operator told me ghe told occupant to put his pfd on on because he didn't think things looked good.  operator saidthe boat slowlyrolled on the port side ejecting both occupants into the water.  At the same time of the incident, the water temeprature was at 53 degrees.  operator told me as the boat was rolling over, he grabbved his PFD and attempted to put it on.  He was able to put one arm in before he entered the water.  White in teh water he made numerous attempts to put on the pfd with no success.  The PFD eventually came off him and floated away.
Naches