Why is it so difficult to forecast tornadoes?

Can't conquer the sky, tornadoes are unpredictable. This is determined by the level of science and technology. What we can do now is to remind people that the tornado is approaching, that is, to judge the whereabouts of the tornado after the tornado shows signs, and to warn the downstream area of the tornado. The approach reminder can only be released 5-30 minutes in advance, and the accuracy rate is less than 50%.

The tornado approaching early warning system needs powerful information release, large-scale prevention mechanism and mutual trust and tacit understanding among officials, meteorological enthusiasts and the public. At present, China can't do this: the method reminder needs to spread quickly to everyone's eyes within a few minutes, otherwise it will lose its meaning. Approaching reminder requires a large number of information workers or enthusiasts who know the weather to track the weather in real time and upload high-quality information to the Meteorological Bureau. The meteorological bureau is also required to establish a system in this regard, which is still blank.

The meteorological department did not formally record and store the data of tornadoes, which made young forecasters unfamiliar with the history of tornadoes. There is no official tornado database in China, which affects the research and understanding of tornadoes. Different weather systems have different aerodynamic forces in the weather, which determines the formation of tornadoes. The scale of mid-latitude cyclone and anticyclone involved in daily weather forecast is thousands of kilometers.

Since most people in China have read the reports of tornadoes abroad, they will wonder why there are more tornadoes in the United States than in China. Liu Shida explained that this is because the United States is surrounded by oceans, the Atlantic Ocean and the Pacific Ocean, so strong convection is abundant. China has only one side of the ocean and the other side of the desert plateau, such as Xinjiang and Tibet. Strong convection is not as rich as the United States.