I dunno what the sounds are, but they're real. In the spring of, I think 2015, Grace made some videos of the same noises here. They were fainter, so maybe farther away, but distinct. Didn't sound like anything natural I've ever heard. Definitely not thunder or normal weather phenomena.
The video he showed with the "explanations" was pure, unadulterated, bullshit. Dude might as well have said "they're caused by weather balloons filled with swamp gas to make 'em more bouyant". The "weather" explanations, like the invisible lightning, might work for some few of them, the boom ones, because that is sort of what thunder sounds like - a sudden BOOM. However, they fall all apart when "explaining" the ones that sound like horns or squeaky steel door hinges. Ain't no thunder I've ever heard, anywhere in the world, sounds like that!
"Underground tunnel" explanations might work for some areas. For example, here on the north side of Clinch River, the ground is honeycombed with coal mines and abandoned coal mines. In the south side of the Clinch, the terrain is karst, which has over time produced thousands of natural caves. So, the whole place is like Swiss cheese. Now, had he said something like "wind blowing across a cavern mouth, setting up a resonance within inner chambers of the cavern, like blowing across the mouth of a whiskey jug" might have worked for a few minutes... but if that were the case, why don't we hear them here every time the wind blows? We've only heard them that once time.
'Tis a mystery, fer sure!
.
The video he showed with the "explanations" was pure, unadulterated, bullshit. Dude might as well have said "they're caused by weather balloons filled with swamp gas to make 'em more bouyant". The "weather" explanations, like the invisible lightning, might work for some few of them, the boom ones, because that is sort of what thunder sounds like - a sudden BOOM. However, they fall all apart when "explaining" the ones that sound like horns or squeaky steel door hinges. Ain't no thunder I've ever heard, anywhere in the world, sounds like that!
"Underground tunnel" explanations might work for some areas. For example, here on the north side of Clinch River, the ground is honeycombed with coal mines and abandoned coal mines. In the south side of the Clinch, the terrain is karst, which has over time produced thousands of natural caves. So, the whole place is like Swiss cheese. Now, had he said something like "wind blowing across a cavern mouth, setting up a resonance within inner chambers of the cavern, like blowing across the mouth of a whiskey jug" might have worked for a few minutes... but if that were the case, why don't we hear them here every time the wind blows? We've only heard them that once time.
'Tis a mystery, fer sure!
.