The rain started right as we boarded the ferry at the Transportation and Ticket Center.
And that's exactly what we did.
Remember I said it was thundering and lightning and raining heavily? At the time of our first FP+, Splash Mountain and every outdoor attraction at the Magic Kingdom was closed due to weather. If you have a FP+ reservation for an attraction and the ride is shut down during your return time window, you will be notified via email that you can substitute other attractions for that FP+ reservation. The closed attraction FP+ becomes an open-ended FP+ on the My Disney Experience (MDE) app. You can use it for another attraction or wait and see if your original attraction begins operating again and use that FP+ reservation when the ride is running again.
For more information about FP+, Magic Bands and the MDE visit our information page here.