Please answer the following question: Generate a question about the following movie plot: In June 1969, 5-year-old Jo Thornton (Alexa Vega), her parents, and the family dog Toby seek shelter in their family storm cellar as a powerful F5 tornado hits their farm in Oklahoma. This tornado is so strong that the storm cellar door is ripped off, causing Jo's father (Richard Lineback) to be pulled into the storm to his death. Jo, her mother (Rusty Schwimmer), and Toby survive. 27 years later in 1996, 32-year-old Jo (Helen Hunt), now a meteorologist, is reunited with her estranged husband, Bill "The Extreme" Harding (Bill Paxton), a former weather researcher and storm chaser, who has since become a weather reporter. He is planning to marry reproductive therapist Melissa Reeves (Jami Gertz). They need Jo's signature on the divorce papers and have tracked her down during an active bout of stormy weather. Jo has built four identical tornado research devices called DOROTHY, based on Bill's designs. The device is designed to release hundreds of sensors into the center of a tornado to study its structure from the inside, with the purpose of creating a more advanced storm warning system. Bill and Melissa join Jo and her team of storm chasers, and the team encounters Dr. Jonas Miller (Cary Elwes), a smug, corporate-funded meteorologist and storm chaser. When Bill discovers that Jonas has created a device based on DOROTHY, called DOT-3, he vows to help Jo deploy DOROTHY before Miller can claim credit for the idea. During the first tornado, Jo's truck and DOROTHY I are both destroyed (the truck is picked up and lands upside-down). They continue storm chasing in Bill's truck, with Melissa in the back seat. They find a second tornado, a confirmed F2, and head off on a back road when the twister shifts its track. They soon find themselves driving through heavy rain, and instead collide with a cluster of two violent waterspouts, one of which splits, spinning them around on the highway until the waterspouts dissipate. They're fine, but Melissa becomes hysterical from the ordeal, and Bill has to calm her down. The team...
A:
How does Jo feel about DOROTHY II being knocked out of the truck?