Jim,
I'm a j/24 driver, and I'm quite aware of the potential issues - especially if the aft storage compartments are not secured.
I can certainly relate to rapidly changing conditions while family is aboard. Sounds like you handled things masterfully. I thought it was interesting that even though you were early, and well prepared, you still found yourself in an unexpected situation... reminds one to respect mother nature.
On my first race, I showed up with no
radio, no watch and late to the starting
line (I didn't have a motor at the time). My crew still had a good time, and was able to pass several boats on the upwind leg before the wind died completely and the race was called.
I hope you'll continue to post your further explorations into racing.
Mike