This movie is implausible. The odds are astronomical that a waterspout would go over the most shark-infested spot in the ocean and then continue to a crowded city.
More likely in the real world, it would pick up more common sea life and then follow the paths that tornadoes traditionally take.
Emma, did you paint the trailer green last week?
No, Clem, I think the storm last night musta dumped a shitload of algae on it.