Here In the north east I have tied pieces of carpet between old car tires to both sides the hull as fenders. The tires are placed the full length of the boat with out any gaps between the tires. Then placed one tire tube fully inflated under an old truck tire, then place both over the top of the piling as a heavy duty fender. Also added more dock lines and adjusted them for storm surge along with removed all sails and anything to reduce effects of wind.
We also hooked up 2 additional temporary bilge pumps to two separate batteries and suspended the batteries high from the ceiling in case of a hull breach. My thoughts are if the main battery shorts out I have 2 back up pumps. Note I used smooth hose instead of currugated hose, this increases flow rate.
Weathered quite a few storms this way and so far have been quite lucky, just had to remove a few black marks from hull.