Yeah I know Florida weather, but this isn't usual Florida storms, this is a tropical depression that no matter which track it takes is supposed to dump heavy rain all week almost non stop.
As for poncho-ing it.... We might try it but not if it's as heavy as they are forecasting. My wife and daughter are not the "getting soaked" type, no matter how much money we have already put out. Also, Ponchos don't do anything when it rains that heavy, you may as not bother wearing one, you will get just as wet. Unless you have rain gear that costs a few hundred dollars, believe me, I know, I'm a mailman. Also, the main attractions that we want to ride are all going to be closed. Everest, Kilimanjaro, Big Thunder(already closed), Splash, Mine Train.
I'm seriously thinking about not using our 5 day Park hoppers and saving them for another trip and maybe just paying day by day depending on how hard it's raining.