My fiancee and myself witnessed several flashes which lit up the northern sky. Some flashes varied in color; mostly red or blue. Weather radar shown no storms surrounding the area and there were no visible air crafts that could be a source of these light flashings..S ome clouds in the sky, but not many. Each light emitted a rolling sound, but not like thunder, more like the sound of a bomb detonation. There are no known military test sites in this area. These flashes were also seen at the same time in the same location, the night before (on 11/02/2012.) However, on the previous night, there was no noticeable noise that accompanied the flashes. We managed to capture the flashing via cell phone video camera.