86 Ski Supreme crack in hull

Hey guys. Life was good a after a repair to the stuffing box then the raw water impeller this summer. Boat running great! Then THUD. I hit something and then checked it on the shore station. The boat has a 3 to 4 inch crack along side the bow below the water line. I will include a pic soon. Can I put a layer of JB Marineweld for the next couple months before I store it. And, of course, can I repair it myself. Love my boat (my wife does not) but, it does not have to be perfect.