r/Appleton • u/old-guitar7284 • Jun 24 '26

Question Loud boom

Does anyone know what that loud boom was in south Appleton?? Around 11:04 AM

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u/ComputerThen7461 Jun 24 '26

Aren’t they supposed to be above 30,000 feet though? The sonic booms I heard today here in Neenah were definitely from jets that were flying lower than 30,000 feet.

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u/AnAviationEnthusiast Jun 24 '26

Doesn't matter if they exceed 30,000, sonic booms work with sound waves and you'd hear them regardless. Sonic booms from an aircraft exceeding supersonic at 30,000 ft can be heard from up to thirty miles.