I spoke with a (very inebriated) friend who got the same storm a bit earlier than us, and he heard it too. He said numerous neighbors were outside thinking it to be a plane circling the area. Although his description of the science was pretty terrible, he’ll chase storms for lightning photos occasionally and it was something known to him. I was able to use his poor description to find a well worded scientific description by an actual meteorologist here. I spoke with another friend who got a sibling of my storm a few hours later. He heard it as well, but it’s apparently not all that rare in his area.
I’m 50 years old, and it’s the first time I have ever noticed it. It was really odd. Our standard thunder claps once then devolves into silence after 10s max before more is created again a minute later. If you’ve ever heard a US C-130 cargo plane (or large equivalent) running maneuvers real low to the ground, it sounded like that close engine noise, but almost frozen in it’s location as though it were capable of hovering. Just a constant low frequency rumble for over a half of an hour. It was loud like active thunder without any break at all.
Knowing it’s a real science thing makes it much less unnerving. Yeah. Much, much, MUCH less unnerving.




Araneus Diadematus. Commonly called a Cross Orbweaver or European Garden Spider. They were introduced into the United States long ago. A very benign and beneficial creature.
Orbweavers and Micrathenas just LOVE building their webs across the middle of a trail.