So I am sitting in my man cave shed in my back yard with the door open enjoying the cool night air. I live in North Fort Worth and my door to shed is facing out East perfectly. I noticed a bright flash like something you would witness when there is a thunderstorm a hundred or so miles away past your line of sight below the curvature of the earth. I just checked radar and see no storms anywhere near me. Any ideas what it could have been? Shreveport has what appears like a mass of high humidity showing up on radar but I would not even call that clouds. That is only area I would even guess something could be but that is hundreds of miles away in Louisiana.