Vessel just fueled at Holiday Shores, blowers operating.  Family departs the marina.  Throttled up outside 200' no wake zone.  As vessel accelerated the motor missed a little, they heard a big bang.  Saw a ball of flame coming from stern toward bow.  All 4 occupants abandonded the vessel and were picked up by other boaters.  Vessel burned to the waterline and sank.
Hope                          