Austin Coppock, who posted video of the lightning to social media, said he saw the lightning near the Millennium Falcon and marketplace in Galaxy's Edge, the Star Wars-themed area within Disney's Hollywood Studios.
Coppock told ABC News that his 10-second clip of the lightning cut off because the "boom of the thunder shook the ground and I let go of [the record button]."
There were no immediate reports of damage to the park from the lightning. Such conditions are not uncommon over the summer in Florida.
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The Walt Disney Company is the parent company of this ABC station.