Booms
https://www.wwltv.com/article/news/mysterious-booms-reported-in-harahan-and-river-ridge/289-323cc9b8-f7eb-4687-ad1f-b23dd8bfa57b
This one has security cam video with a flash and audio of a boom.
https://www.wwltv.com/article/news/surveillance-video-captures-mysterious-boom-in-lakeview/289-f3e4fc21-c3fd-4994-a5d9-c2290be7b628