Its where there is a stuff ton of fireworks, they line the ohio river bridge, buildings, boats (I think), and alot of other stuff. Its pretty much a 10 minute light show of fireworks.
The fireworks bang and crash represents thunder and its over Louisville. There is usually aerobatics but this year the jets are to busy watching Korea or something like that so its not happening. They do some insane stunts.
They will fly real close to a building and at a last second they'd pull up and the belly of the jet would be a few feet from the building.
Youtube it.