12/20/15 13:30 York Valley, AZ. Full Moon. siea sphere that changed to yellow red and imploded12/20/2015 1:30 P.M.As I was Walking back form my garage to the house, I noticed a strange cloud formation east of the house, at first I thought it was a con trail, but as I looked at it I realized it was some other formation, it did not look like any cloud formation I had ever seen; it was several miles long and narrow like a contrail, but there was no variation in the optical density it looked more like it had been painted white in a north, south orientation.As I studied this formation I noticed a faint circular light approaching the north end from the east, it got increasingly brighter until my first thoughts it was the day time moon then I realized it was moving to quickly for the moon as it touched the north end of the cloud it looked like the daytime moon in shape, size and intensity.I started fumbling for my cell phone then realized the orb was changing in color and appearance so I just watched transformation which happened in seconds I was not able to get a photo. The final stage: concentric wavy rings started to form and the colors went from bright light to yellow and reds then appeared to implode with a flash.The orb was gone along with the cloud there was some remnants of the cloud left on the south end which I got a photo.((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))