How can I create a tornado background?

[SupaLuke]

So, I'm working on a level for a project of mine and I want to make a level that takes place inside a tornado. The thing is, I don't know how I could make a good tornado effect. Can someone please at least tell me what I could do?

[WildW]

hmm, I don't know, you could have a background with random objects swiping across the screen maybe?

[Dersen]

So, you can use the Tweeter from Super Mario Galaxy, or a tornado from Super Mario Bros 3.

[SupaLuke]

I'm thinking of using the tornado texture from Mario 64 as part of it, but I can't seem to find it on the Texture Resource.