This video was taken shortly after 1 a.m. on Tuesday, Dec. 18th, 2018 in Greenville, SC. Heard this noise faintly from inside my house, stepped outside and took this. It was this constant sound with a lower noise similar to a helicopter rotor like sound going on for 20 minutes straight.
I increased the video volume 4x so you can hear it better. Posted it to my story on instagram and a follower of mine in the area heard it as well. No one knows what exactly it was. I've heard everything to an industrial plant, to construction, to biblical signs, to atmospheric pressure.
What really got me was this---I was looking through youtube videos of sounds in the sky in Dec. 2018 and found a video someone took in Canada of the same exact sound 2 days prior to when I heard it. Here's the link.
Please, if anyone has any explanations comment below.
The accumulation of cometary dust in the Earth's atmosphere plays an important role in the increase of tornadoes, cyclones, hurricanes and their associated rainfalls, snowfalls and lightning. To understand this mechanism we must first take into account the electric nature of hurricanes, tornadoes and cyclones, which are actually manifestations of the same electric phenomenon at different scales or levels of power. Because of this similarity, we will refer to these three phenomena collectively as 'air spirals' in the following discussion.Once a rare phenomenon, waterspouts are increasingly common these days in some areas. At the same time, vortexes of water, fire and dust are appearing in very unusual places. There is pretty clear-cut evidence that cyclonic winds are all essentially electrical in nature. Heat exchange plays a role, but more as a side-effect to the distribution of electric charge potential between mediums - ground-to-air, water-to-air, fire-to-air, whatever. See also:
McCanney describes the electric nature of hurricanes in these terms:
A simple model showed that these [tropical] storms formed when electrical currents connected between the ionosphere and the top of the clouds. [...] the reason hurricanes lost power when they approached land was that the powering electrical current from the ionosphere to the cloud tops and to the Earth's surface had no connection (anode) while over the ocean [...] so it drew up vast surface areas of ionized air from the ocean surface and sucked them up a central column (the spinning vortex was caused by the moist air rising 'up the drain') [...] whereas the land provided a 'ground' for the current and therefore it shunted out the storm's power source. [...] I also calculated that the warm water theory for hurricane development lacked sufficient energy to account for the energy in these massive storms. We later witnessed hurricanes on Mars where there is no water at all. Clearly, the warm water concept did not work [...]1
From this perspective, air spirals are simply the manifestation of electric discharges between the ionosphere and the Earth's surface. The image above shows a waterspout and a lightning bolt occurring in the same place at the same time, suggesting that indeed electric potential difference between the clouds at the top of the picture and the ground at the bottom is what powers both the lightning and the tornado.© Fred K. Smith, National Geographic.
A waterspout parallels a lightning strike over Lake Okeechobee in Florida.
Comment: See also: