The worst typhoon in Fujian

The worst typhoon in Fujian is "Moranti".

On September 6th14th, "Moranti" was formed in the northwest Pacific Ocean. It intensified into a severe tropical storm on September 6th. At 02: 00 on September, it intensified into a typhoon 12, a strong typhoon at 08: 00, and a super typhoon at1/kloc-0. On the night of September 13, it strengthened to the peak intensity, with the maximum wind force reaching 75m/s. On September 15, it landed in Xiamen, Fujian, China with a super typhoon level, with the maximum wind force of 52m/s at the center. It weakened into a tropical depression at 17. It dissipated in the Yellow Sea of China in the early morning of September 16.

Morante was rated as the strongest storm in global waters in 20 16. At the same time, "Moranti" hit Xiamen hard, causing 650,000 trees to fall, 17907 houses to be damaged, 105000 mu of crops to be affected, resulting in huge direct economic losses. In Chinese mainland, 28 people were killed and 49 injured, 18 people were missing. When it passed through the south of Taiwan Province Province, it also had a serious impact on the local area.

Formation principle of typhoon:

1. Warm and hot seawater: A large amount of warm and hot seawater is needed for typhoon formation, and the seawater temperature is usually required to be above 26.5 degrees Celsius. Such warm seawater provides sufficient water vapor and is the energy source for typhoon formation.

2. Airflow Convergence: On the sea surface, due to the influence of the earth's rotation and topography, the airflow will converge, that is, the airflow will converge. This convergence will cause the air to rise and form a low pressure area.

3. Initial disturbance: Over the tropical ocean, there are usually some weather disturbances, such as storms and convective clouds. When airflow convergence and seawater evaporation provide enough energy, these disturbances can gradually develop into typhoons.

4. Cyclone formation: Due to the influence of the Coriolis force of the earth's rotation, the low-pressure area began to rotate. When the converging airflow continues to rise, it will form a cyclone and begin to have a certain scale.

5. Tissue growth: When a typhoon forms, it will be supplemented by tropical ocean energy and continue to develop and grow. When the wind speed exceeds 17.2 meters per second (about 7 winds), it is called a tropical storm. When the wind speed continues to increase and exceeds 32.7 meters per second (about 12 wind), it is called a typhoon.