The first video below was recorded in Nakskov, Denmark on March 14th. The second video is from a reader of this blog named Dee. It was recorded in Ancaster, Ontario on March 16th. The two videos have that weird pulsating that really doesn’t sound like a jet. Examples of sound types can be found here.
The witness of the Danish video says the sound lasted half an hour and started out very loud. It could be heard from inside with windows closed. They point out what I always say about these videos and that is the fact that real jet noise only lasts a few minutes. These weird “sky roars” last half an hour to two and even more.
Dee says the incidents are becoming more regular with hours roughly between 12:00 and 2:00am. A few weeks ago Dee posted a video but I didn’t write about it because it wasn’t very loud and they mentioned living near an airport. They say it’s not a jet. Dee claims it’s getting louder as demonstrated by this new video.
What Dee has done however is very useful and something no one has done before. They have recorded an actual jet flying by while the “sky roar” is happening. You can compare what a real jet sounds like along side an actual strange sky noise. I’ve posted the three videos in order so you can compare all three.

Omg we are hearing the same exact thing every night and we live In Willits, California no where near a military base or airport….its kinda freakin me out
Hi Michelle, thanks. Did you come to this site looking for information about what you hear?