Why was it particularly hot before the typhoon?

The air pressure in the center of the typhoon is low, and the air pressure around it is relatively high, resulting in an air pressure difference, and the airflow flows from low pressure to high pressure. Downdraft prevails in the high pressure area, and the weather is fine. Because the water vapor was sucked away by the typhoon, the weather was sultry.

Typhoon (English: Typhoon) is a tropical cyclone. Tropical cyclone is a low-pressure vortex that occurs on the surface of tropical or subtropical oceans, and it is a powerful and profound "tropical weather system". In China, tropical cyclones in the South China Sea and the Northwest Pacific are classified into six grades according to the maximum average wind speed near the bottom center, and the wind near the center reaches 12 or above, which is collectively called typhoon.

Broadly speaking, the word "typhoon" is not the intensity of tropical cyclones. Tropical cyclones (including tropical storms, severe tropical storms and typhoons defined by the World Meteorological Organization) with sustained wind speeds of17.2m per second are called typhoons. On informal occasions, "typhoon" even directly refers to the tropical cyclone itself. When the tropical cyclone in the northwest Pacific reaches the intensity of a tropical storm, it is given a name. The name is provided by Typhoon Committee 14 of the World Meteorological Organization. ?

According to the statistics of the United States Navy Joint Typhoon Warning Center, the number of typhoons in the Northwest Pacific and South China Sea in 1959-2004 is related to the month, with an average of 26.5 typhoons generated each year. The month with the most typhoons is August in Gregorian calendar, followed by July and September.

In July 2020, there was no typhoon in the northwest Pacific Ocean and the South China Sea, which was the first "empty station" in July since China 1949.

On April 30th, 20265438 10, after consultation with China Meteorological Bureau, Macau Geophysical and Meteorological Bureau, Hong Kong Observatory and Taiwan Province Meteorological Department, six new typhoon names adopted by the 53rd session of the Typhoon Committee of ESCAP/WMO were officially announced, namely "Ginkgo", "Jiangdong" and "Gaza of China".