This sounds like something I noticed last year, I think it was. Pretty sure it was the summer of '11 when I started hearing low flying jets, but could not see anything of them. It was odd, for sure. I too spend a lot of time outdoors, working, hiking, biking, general fooling around. We have 300 days of sunshine here, as they say, and the weather is usually fine. Being something of an aviation fan for fifty years or so, and having lived near active air force bases, I have a lot of experience watching planes. Twenty years ago, I was even getting pretty good at identifying aircraft passing overhead just by their sound. Anyway, suddenly last year I'd hear jet fighters passing over at unusually low altitude, but I could never see them. It's easy enough, the first few times, to think well it wasn't going the direction I thought, or it must have been behind that cloud, or that hill, or whatever. After having attended a dozen or so air shows over the years, and watching low flying planes of all types whenever the opportunity arises, it's pretty jarring to suddenly be hearing "invisible jets." This is the first time I've mentioned it, in fact. Anyone hearing about it or reading this is likely to roll their eyes and just assume I was mistaken. Such assumptions are as tiresome as they are narrow minded. But go ahead and bag on my honest description of real experience. I have thick skin.
Oddly, I have not heard any such "invisible" planes lately. The phenomenon lasted several months and just went away as suddenly as it started, for me. Of course I'm open to the idea that what I heard were not planes at all, but then I'm not cowardly enough to just assume I was mistaken a dozen times in a row and then suddenly got my eyesight back. Sometimes I wish I were. Then I could just ignore anomalous experiences (my own and those of other sane and honest people) and get on with a tidy and sensible life.
As for the other "sky sounds" mentioned above, I have not looked at it any further than wasting time on some absurd Youtube videos, but there could be something to some of the reports from reliable people, by way of changing weather patterns or some other cause. I see we already have a Doug & Dave act. That's progress, I guess.
My second bump of the morning. What are the odds it would be one of my own?
As I've mentioned before in various threads on the paracast forum, I walk. A lot. If not my sunday hikes which I will wait for until the bills finish their season...I guess for them it already is though...to my three to four times a week night walks, to my walking to work I spend a lot of time on my feet
Given that, as I mentioned on a thread that over the years I have become well acquainted with the flight traffic patterns and recently after an abscence of a couple of years I notice a reoccurring "phenomena" which I find intriguing, not necessarily paranormal, but maybe high strangeness.
This time it's sound related, and no it's nothing like those unearthly whining trembling sky sounds you can find on youtube. These sounds sound for all the world like a low flying military or commercial flight except there is nothing to be seen. A couple of years ago I heard what an extremely loud low rumbling in the sky above. Imagine one of those passing high altitude jets you can hear them after they pass overhead. A low roar. Well what I picked up a couple of years ago and several times recently was just like that but much louder or much lower and there was nothing in sight. In fact last monday night, a week ago, I was not alone. I saw another guy up the street starting at the sky and catching up to him and trying to sound as casual as possible I asked him if he was looking at anything interesting and he confirmed what I thought he said he thought he heard a very low jet passing overhead. The other funny thing is this sound lasts well over a couple of minutes, much longer than the typical sounds of normal traffic and often occur in batches, like there is a squadron that's slightly spread out passing through as I'll hear two or three passovers in just a few minutes. fwiw, I live in los angeles
