Of the United States fall base mountain range, one is called " tornado corridor " region, average and annual the tornado that forms above 1000 times, its grand setting attracted hundreds " the person that chase after wind " come round to film tornado, include the person that tourist and profession chase after wind among them. Worked with lab of American country storm 1972, began " tornado intercept plans " , caused extensive research is moved with the travel that chase after wind. The person that the profession chases after wind tracks tornado is not to film photograph, its purpose is when be being generated through catching tornado video, collect tornado data, so that can earlier issuance tornado alarm. Before setting out, the person that the profession chases after wind forecasts a center to obtain tornado information from storm normally, make " chase after wind " plan. The person that chase after wind people building up on a highway. As a result of tornado ten thousand changes in the twinkling of an eye, forecast very hard, touchdown time has only short a few seconds or a hour. The person that chase after wind must have decorated exploration equipment before tornado is generated, intercept of the tornado that finish. For observation of can better storm of press close to, the person that the profession chases after wind makes tornado intercept car. Whole vehicle deployed armor plate armor, can endure blast and hail. Car window is added outfit is ballproof and plastic, the fragment that shoots with keeping out tornado to assault an area to fly. The person that chase after wind must observe the change of the cloud at any time during transit: When cloud wall appears, tornado happens very likely. Stock distributes inside cab of tornado intercept car of all kinds observation tracks used equipment. When the person that normally on-the-job course of study chases after wind finds intercept to nod, they want the way that runs according to tornado, need what explore an instrument scientificly to be put in tornado leave on the road of classics, receive analytic data by the monitoring system inside car. The person that the profession chases after wind thinks: "Want saw with one's own eyes to see tornado only, can feel everything is worth. " what the tornado that cameraman films will raid moment is video. Tornado smells the new green grass that goes up to resemble firm cut sometimes; If tornado destroyed a building hind, air smells resemble gas; Can smell in tornado spot occasionally earth is new breath, be just like a bulldozer to had ground field. Storm tracks the move in, dimu Samalasi is observing thunderstorm and the cloud cluster that forming. A tremendous lightning arrives directly at the ground from high in the clouds. Samalasi and companions drive to chase after this tremendous storm madly all the way, until can have gone without the road, next watch sb go away is worn this colossus leaves slowly. A person that chase after wind advances in predicting tornado the detector that the Samalasi below positional cloth of direction designs leaves the scene quickly. Although 3 people die in tornado, but the person that chase after wind people the footstep won't stop.