Occurrence in the film "Twister" (7)

I believe the answer is:

tornado

(Other definitions for tornado that I've seen before include "Severe wind" , "Donator (anag.)" , "Dreadful blow" , "Violent wind storm" , "Violent swirling wind" .)

I've seen this clue in The Washington Post.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.