When is the typhoon season in Japan? Which month has the most typhoons in Japan?

The tourism industry is most worried about natural disasters, such as earthquakes and typhoons. As we all know, Japan is a country with frequent typhoons. Everyone must pay more attention to typhoons before going out, and pay more attention when planning to travel.

010-10 The typhoon season in Japan is generally June in summer and autumn-10, and September in autumn is the peak of typhoon.

Because the latitude of Japan is relatively high, in winter and spring, typhoons have been transformed into extratropical cyclones and merged into the westerlies before arriving in Japan, so typhoons landing in a relatively concentrated way generally appear in June-65438+10, and the subtropical high moves northward in June, so typhoons have room for activity. It's early summer, and there have been many examples of typhoons affecting Japan in the past. September-10 is autumn, the subtropical high weakens, and the typhoon tends to move northward after its formation, which will also affect Japan.

September is the typhoon season in Japan. At this time, typhoons often hit Okinawa, Kyushu, Shikoku and other coastal areas, and brought strong winds and rainy weather to Japan. The most destructive and catastrophic storm in Japanese history also occurred in September.

For example, indoor typhoons on September 2 1 and 1934, tsunami typhoons on September 2 17 and 16, and typhoon Ise Bay on September 26 1959 (No.59 15).

Japanese typhoon

Typhoon source refers to the sea area where typhoons often occur. Global typhoons mainly occur in eight sea areas. There are five sea areas in the northern hemisphere: the western and eastern North Pacific, the western North Atlantic, the Bay of Bengal and the Arabian Sea, while there are three sea areas in the southern hemisphere: the western South Pacific, the western and eastern South Indian Ocean. From the regional distribution map of the annual number of typhoons and their percentage in the global total number of typhoons, it can be seen that there are 62 typhoons in the world every year, and there are many more typhoons in the western ocean than in the eastern ocean. Among them, the northwest Pacific is the largest (accounting for more than 36%), while typhoons have not been found in the South Atlantic and Southeast Pacific. Typhoon sources in the northwest Pacific are divided into three relatively concentrated areas: the ocean east of the Philippines, the ocean near Guam and the central South China Sea. The typhoon formed in the South China Sea has a great influence on South China.

Most typhoons occur at 5~20 degrees north and south latitude, especially at 10~20 degrees, accounting for 65% of the total. However, only 13% typhoons occur at higher latitudes above 20, and there are few typhoons within 5 near the equator, but there are occasional typhoons. For example, Fujian Meteorological Observatory found that there were three typhoons in the northwest Pacific Ocean south of 5n in the past two years,1970-197. According to the analysis of satellite data in recent ten years, the disturbance cloud that developed into a typhoon can be found a few days ago, so the initial position of the disturbance is actually east of the previously found position. For example, in the North Atlantic, it used to be thought that most of the initial disturbances that developed into typhoons occurred in the middle of the ocean, but according to cloud image analysis, some people thought that two-thirds of typhoon disturbances originated from the African continent every year. These disturbances are generally inverted V-shaped or swirling clouds, which move westward with the easterly airflow and develop into typhoons when they reach the central North Atlantic and the Caribbean. The initial disturbance position of typhoons in the northwest Pacific and South China Sea is also more easterly than previously found.

Why do typhoons like to go to Japan?

The destructive power of Typhoon No.3 is mainly caused by three factors: strong wind, heavy rain and storm surge.

1. Strong typhoon is a huge energy pool, and its wind speed is above 17m/s, even above 60m/s. According to the measurement, when the wind reaches 12, the wind pressure per square meter on the plane perpendicular to the wind direction can reach 230kg.

2. Rainstorm typhoon is a kind of heavy precipitation system. When the typhoon lands, the rainfall center can drop100-300mm rainstorm a day, and even reach 500-800mm. The floods caused by typhoons and rainstorms are the most dangerous disasters. Typhoon rainstorm has the characteristics of high intensity, high flood frequency, wide range, fierce strength and great destructive power.

3. Storm Surge The so-called storm surge means that when the typhoon moves to the land, due to the typhoon's strong wind and low air pressure, seawater accumulates strongly to the coast, the tide level rises sharply, and water waves rush to the coast like an avalanche. Strong typhoon storm surge can raise the coastal water level by 5-6 meters. When storm surge meets astronomical tide, it produces high-frequency tide level, which leads to flooding, seawall burst, houses and various building facilities destroyed, towns and farmland flooded, and a large number of casualties and property losses. Storm surge will also cause coastal erosion, and seawater intrusion will cause land salinization and other disasters.