Well, tbh, whilst 9gag focuses on funny pics they aren't all memes many of them are just funny as in weird, so it's not like that's a proper reason. The main thing that made me skeptical was that the pictures a little blurred (as in, looks like it's been done with a blur tool) around the point of contact.
I was going to say something about surely if the rainbow effect (and its arcing) is due to distance etc... surely the rainbow shouldn't warp in that way. But you're the weather person, you should know best!