F-6

F-6 is a horror/disaster movie. It's rating is PG-13 for violence and mild language

Plot
The plot centers around when a global warming causes tornadoes to destroys cities all over the world like Los Angeles, Tokyo, Chicago, London, Shanghai, Paris, Las Vegas, Boston and Cairo for example and a group of friends are trying to survive and meteorologists trying to find a way to stop it. But then in the climax, 2 F-5 tornadoes combine to form an F-6 tornado. The F-6 tornado then goes and destroys New York City.