While I'm not from a tornado prone region, I don't think that's a tornado.
It might even be an edited image that's been compressed many times? The grey thing seems to cut into the top of the building in some areas. As if they took a photo of a closed waffle house and edited it to look scary for the joke. Or something on the window/foreground
Or it is indeed a very scary cloud and I'm glad I don't have to deal with that regularly