Enough said!

A freak hurricane hits Los Angeles, causing man-eating sharks to be scooped up in tornadoes and flooding the city with shark-infested seawater. Surfer and bar-owner Fin sets out with his friends Baz and Nova to rescue his estranged wife April and teenage daughter Claudia.
Sharknado keeps every mind human — it fights its subject at zero distance. The story fights on E8 of the E0–E14 reality ladder.
Films fighting at the same level of reality, about the same things.
The same preoccupations examined at another scale — one mind versus a nation.
Shared director or cast.