Birthday Cake

When I asked Charlie what he wanted on his cake for his birthday, he said, "A hurricane."
I said, "I don't know how to draw that."
He said, "A tornado."
Now, that, I knew how to draw. Problem was, how to balance 7 year old passions for destructive weather phenomena with ********** (censored) year old desires for a cake aesthetic that makes sense.
Thanks for your help, Fujita scale! Of course, there is no F7 on the scale, but that might be an appropriate descriptor of Charlie under the influence of birthday cake...