Hersheypark will remain closed Thursday due to flooding rains that have pounded central Pennsylvania this week.

The park in Dauphin County had already shut down Wednesday. It also closed Monday because of high water, but reopened Tuesday.

Hersheyparks' weather policy calls for guests to be allowed a "return visit voucher" in the event of inclement weather severe enough to close major attractions for at least one hour.

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Knoebels, in Northumberland County, was also closed Wednesday. Officials there shared a video of flooding inside the park, and it wasn't immediately clear whether it would reopen Thursday.

"This one's going to take some clean-up," the park wrote on Facebook.

A flash flood watch was in effect through 2 a.m. Thursday, according to the National Weather Service. Some residents outside of Hershey were evacuated Wednesday morning, according to PennLive.

A flash flood watch was also in effect for the Philadelphia area until 6 a.m. Thursday, with potentially heavy rains forecast to hit the area Wednesday evening.

Staff writer Michael Boren contributed to this article.