How to write the time sequence before and after the typhoon?

Development stage, maturity stage and extinction stage.

1. Incubation stage: After 65,438+0 days of solar irradiation, strong cumulonimbus clouds formed on the sea surface. The hot air in these cumulonimbus clouds rises, and the surrounding cold air is constantly replenished, and it rises again when it meets heat. This circulation makes the air above hot, the air below cold, and the water vapor in the hot air above evaporates to expand the cloud area, making this movement more intense. Affected by the geostrophic force, the expanding cloud rotates counterclockwise (clockwise in the southern hemisphere), forming a tropical cyclone. The centrifugal force generated by the rotating air in the tropical cyclone throws the air outward, and the air in the center becomes thinner and thinner, and the pressure becomes smaller and smaller, forming the initial stage of tropical depression-typhoon.

2. Development (enhancement) stage: Because the air pressure in the center of the tropical depression is lower than that in the periphery, the surrounding air rushes to the tropical depression and rises when it meets heat, * * * gives the tropical depression more energy, which exceeds the output energy. At this time, the tropical low-pressure air rotates more violently, the maximum wind force in the center increases, and the central air pressure further decreases. When the maximum wind force in the center reaches a certain standard, it will be upgraded to a higher level, tropical depression will be upgraded to tropical storm, then strong tropical storm and typhoon, and sometimes it will be upgraded to strong typhoon or even super typhoon, depending on the ratio of energy input and output. If the input energy is greater than the output energy, the typhoon will strengthen, and vice versa.

Third, the mature stage: after a long road of development, the typhoon has become powerful and has the ability to cause disasters. If we land at this time, it will cause great losses.

4. Death stage: There are two paths for typhoon death. The first one is that after the typhoon landed, it will weaken and disappear quickly due to the joint influence of ground friction and insufficient energy supply, and the residual cloud system after the disappearance can bring heavy rainfall to a certain place for a long time. The second is that the typhoon turns in the northern part of the East China Sea, lands in South Korea or crosses the Korean Strait, then degenerates into an extratropical cyclone in the Sea of Japan, and then slowly dies out.