"T-Shaped" lighted craft travels North-South across sky at low altitude, makes very soft, hollow whistling noise, sky flashesI went out to smoke a cigarette at 5:25 AM on Friday, September 5, and immediately noticed a "T" shaped craft with 6 bright amber lights (three on each side describing a "T" shape) and two tiny white strobes (one on each arm of the "T").Craft was flying low from North to South at about the speed of a commercial jet on final approach for landing. There are no airports here. I determined the altitude by following the sound the craft made, which was a soft, hollow whistling noise as it passed overhead. Did not sound like any jet aircraft I've heard before; it was very quiet.Sky flashed a dim green as craft passed overhead, like heat lightning. Skies clear.No Port and Starboard running lights observed. Sighting lasted approximately one minute, until craft receded behind treeline.