I heard a strange sound coming from outside. I had heard this sound before at night, and was curious, so I went outside and watched the sky to see if I could see what it was. The sound I was hearing is a little hard to explain. The best I can do is that it was a mixture of a hum, a schcoooo, like sound like that of a jet, and it was causing the ari to make these kind of whipping like sounds. The whipping sound was the loudest and then the hum, and then the shccooo sound. Helicopters fly over all the time and it didn't sound like it could possibly be a helicopter too me, although I speculated it might be a rare type, or something. Kind of thought maybe it was some kind of jet with the ability to hover or something. At this point I'm not expecting to be blown away, but then while I was looking up, expecting to see the lights on a slow moving aircraft, all of the Sudden, from what looked like about 200 feet overhead, three lights forming a triangle, appeared out of thin air, and instantly moved, about what to me looked like less than a quarter mile, at an extremely fast rate before the lights went off. After the lights flashed and went across the sky, the sound slowly faded. The strange thing is that the sounds didn't seam to me to be coming from what ever caused the light. very strange. Again, three lights in a triangle, appeared to me to be about 10-15 feet wide, about 80 or so feet above a tall tree in my front yard. It happened very quickly. Of course the response I expect is that it was a shooting star. But this thing, flashed on about 200 feet above me. As it flashed on, it went in a slight upward trajectory.