Someone asked if the OP could have moved his boat. Seems like an obvious question if you've never been through this but, having lived on the water on the West coast of Florida for over 30 years I can tell you that stay or go is always a complicated question. Up until about a day before it hit Ian was forcast to make landfall in Tampa Bay or North of that where we're located. At that point moving the boat North would not have made sense. When it became clear that the storm would hit farther south it was still not clear exactly where until very late. A slow boat at that point would need to head North because the South side is the bad side but you would not know how far North you'd need to get because the track could shift an any time. Make no mistake, if the OP had attempted to move his boat at that point he would have been risking his life and the lives of anyone accompanying him.