At least it sounds like conditions won't be too rough for your ball python. This probably goes without saying, but if you think the power will go off, don't feed him before the hurricane hits, just in case it gets too cold for him to digest it.
I always have to prepare for losing power during the winter ice storms where I live, and it probably won't get too cold where you are, but just in case I always recommend keeping hand warmers wrapped in dish towels to use as an emergency heat source.
I also highly recommend keeping an emergency tote just in case you ever to have to evacuate. Mine has a small tub for each of my reptiles and an emergency kit with spare heat mats, a temp gun, shed aid, first aid supplies, stuff like that, all packed inside a big tote box. That way, if I ever need to evacuate quickly, I don't have to worry about scrambling for supplies and can just put each animal in their tub and get out. Hopefully you'll never need something like that, but having it on hand really gives you peace of mind.
Best of luck!