Recently, extreme weather problems have led to disaster in many cities. In the past two days, the tornadoes in Wuhan even killed eight people, and the level 17 tornadoes in Suzhou also led to many deaths and heavy losses.
Different from the tornadoes in the past, the tornadoes broke out in inland cities rather than coastal cities as we all think. Why? Wuhan meteorological official micro made an interpretation of this problem.
Tornado is a member of the family of severe convective weather, but it is different from thunderstorm and hail, which is a very strong and extreme severe convective weather phenomenon.
Generally, only very deep and huge cumulonimbus clouds can breed tornadoes. The horizontal scale of cumulonimbus clouds that can breed tornadoes can reach tens to hundreds of kilometers, and the vertical scale can reach at least ten kilometers.
In a huge cumulonimbus cloud, the wind speed at the upper and lower levels will be very fast, and the wind direction at the upper and lower levels is very different, which is likely to be completely opposite.
In this case, it will form a fast rotating air tube, which we call a vortex. Due to the influence of friction and the rotation of the earth itself, the air tube is inclined. In the process of rapid rotation of air flow, it will be constantly involved in more air flow, and this giant air pipe will continue to grow, just like a snowball.
When it grows big enough and falls to the ground, it forms what we call a tornado.
Tornado is not a common disaster in China, basically every year tornado phenomenon (disaster) occurs.
As long as the formation conditions are satisfied, tornadoes may occur regardless of coastal or inland areas. Tornadoes occur frequently in spring and summer in China.The middle and lower reaches of the Yangtze River are prone to tornadoes in China.
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