Premise: StormRider was a simulator ride at Tokyo DisneySea. It simulated going into a weather storm in a futuristic airplane (a "StormRider") to dissipate the storm. The attraction opened on September 4, 2001, in the Port Discovery land of Tokyo DisneySea. The attraction closed on May 17, 2016 and replaced by a new Finding Nemo/Finding Dory simulator ride called Nemo & Friends SeaRider.
Hypothesis: The attraction opened on the 17th day of the fourth month