2008-10-25 - Davis, CA - Changing

light with tail doing serpentine manuever over I-80 in Davis

I first observed what I thought was a plane waiting to land. We were traveling south on I-80 in Davis. The object was traveling north. It was at first about 11:oo in our direction but moved over to the 1:00 position. It seemed to hover at a stand still without moving for a couple of minutes. I am sure other people had to see this as there were many people on the freeway. What shocked us into believing that this was a ufo, was the fact that suddenly from a hovering and still position it seemed to dive rapidly staight down,just dropping,maybe a thousand feet,that is when we saw a strobe like tail behind it. Then it stopped and hovered not moving once again. Then it began to fly in a sepentine fashion towards us, zig-zagging back in forth at a slower speed, very rythmically like a snake as if it were putting on a show. At this point it was much closer and very bright white light!.The lighted strobe like tail was very evident as it was doing it "s" shaped manuever. Then It suddenly picked up speed again, rose a little higher and then dove quickley.It was headed at a slant toward the trees that were at the 3:00 position from us and it disappeared. It was very dramatic ,and very close. I would describe it as a stingray shape and the whole object was lit up. It was illuminating bright white light. The compass, milaege and temperature navigator in our jeep went a little goofy for a while.