Someone is playing tic-tac-toe in the sky with contrails. Looking out a second floor window facing west. Was looking for a winter storm that's forecast for today, Sky has wispy clouds and the half moon is visible. I noticed X's in the sky. As I watched, a large silvery jet at a fairly low altitude flew a pattern crossing a long branch of one of the X's. There was a passenger jet higher up, flying northwest, and the contrail was minimal. There is definitely a storm coming from the northwest. What would be the purpose of this? I wish I had a camera, because the trails are perfectly straight and the pattern is very consistent. I kid you not, its tic-tac-toe boards in the sky.