2010-11-13 - Highland, IN - Unknown

unexplained noise flying above house with no associated air traffic

At approximately 12:03 Central time. A noise occurred above our house. The house sits above most of the local treeline atop the highest hill in the area. From the Southwest to the Northeast the sound emanated, shaking the house slightly. The best description I can give is it sounded like a firehouse being sprayed against aluminum siding. Our house is on a flight path for helicopters, planes and even military flights but this sounded completely different. It also traveled opposite to the normal flight path. We have experienced sonic booms and again different from that noise. Due to the cloud cover and light rainfall we were unable to glimpse any object but the clouds were disturbed in a pattern as if something had skimmed them, similar to if you pulled an edge of paper through paint. Objects were unknown, only one for certain. Did not see any associated lights.