IMPOSSIBLE!!!! That word kept cropping up as I was watching scene after scene of this movie. You gotta suspend your disbelief in order to enjoy the movie or it'll ruin it for you. While I have no experience with tornadoes, I just felt that if the tornado is powerful enough to fling trucks and cars your way, then it'll probably be powerful enough to at least influence the vehicle you're driving too. Also in the final scene where they tied themselves to the pipes that run 30 feet down into the earth in order to prevent being sucked away, I would have expected the joints in the pipes to crack and break apart first. I don't know if in real life these storm chasers are as crazy as this bunch, but it got a bit wearisome watching them in this movie. It felt boring too, the plot wasn't too spectacular. It just involved chasing one tornado after another in the hopes of putting these sensors into it. Oh, and there's the relationship plot, which can be guessed what happens quite easily.