Flaming Orange UFO Hiding In Cloud, Causes Lightning On Aug 31, 2015, Video, UFO Sighting News.

Date of sighting: August 31, 2015
Location of sighting: Phoenix, Arizona, USA

This is a great example of a giant UFO (orange) caught during sunset and its making the white cloud below it to hide over. At the 45 second mark a small aircraft exits the lower part of the cloud on the left side of the screen. It has plane lights on, but it could also be a small UFO. I doubt that a pilot would fly into a cloud like this on purpose. 
Scott C. Waring

Eyewitness states: 
A crazy looking cloud appeared in the sky near Phoenix, Arizona on August 31st displaying what looked like a glowing , fire orange gaseous haze above a large cloud giving it the appearance of being on fire. It was atmospheric optics at work courtesy of the sunset but it was definitely a "Kodak Moment"! However, I have never seen such a display, very unique (to me).