Why did the third strong typhoon "Likima" that landed in East China after the founding of the People's Republic of China affect Shandong for a relatively long time?

Since August, there have been frequent typhoon activities in the northwest Pacific Ocean, and three typhoons have been generated continuously. At present, Typhoon No.8 has stopped, Typhoon No.1 10 will go north to the south of Japan, and Typhoon No.9 "Lichima" will go north to the southeast coast of China.

From the satellite cloud picture, the structure of "Lichima" is more compact than yesterday, and the typhoon eye is clear and the visible intensity is obviously enhanced.

Today 14, the eye of "Lichima" was clear, and the Central Meteorological Observatory maintained a super typhoon level (55 m/s), second only to Typhoon Butterfly No.2 this year (58 m/s).

This afternoon 17 and today (8th) afternoon 17, "Lichima" is located in the east of Taiwan Province Province, about 630 kilometers southeast of Wenling City, Zhejiang Province. The maximum wind force near the center is 17 (58m/s), the lowest air pressure in the center is 920 hectopascals, and the radius of the seven-level wind circle is 260-380.

It is estimated that "Lichima" will move to the northwest at a speed of about 20 kilometers per hour, move into the southeastern part of the East China Sea in the early morning of the 9th, and then gradually approach the coastal area of Zhejiang, and land in the coastal area of Zhejiang from the morning of 10 to noon (strong typhoon level, 14- 15, 42-48m/s). After landing, "Lichima" will turn to the north, and its intensity will gradually weaken.

According to the statistical data from 1949 to 20 16, there are 43 tropical cyclones (excluding tropical depression) landing in Zhejiang, of which 18 is the most in August. Most tropical cyclones that landed in Zhejiang in August were typhoons and above, accounting for 77.8%, that is, more than three quarters were typhoons, strong typhoons or super typhoons.

The intensity of wind and rain affects 7 provinces and 2 cities for a long time.

Hu Xiao, chief analyst of China Weather Network, said that in terms of intensity and path, Lichima is similar to Typhoon Hongcan No.2015, but due to the stronger subtropical high, the northward path of Lichima will be more westward, and the impact may be greater.

Hu Xiao said: "Lichima has the characteristics of strong landing intensity, strong wind and rain intensity, long influence time and wide influence range. Later, it went north, affecting East China, East China and Northeast China. In addition to the strong wind and rain brought by the typhoon itself, it will be combined with cold air after 10, just like the possession of' Rain God', and the influence and spread of wind and rain are great. "

Judging from the historical data, the landing intensity of "Lichima" is not very strong, and it may not even rank among the top five in August. However, due to its slow moving speed, long influence time, dense population and developed economy, its influence may be great, which needs to be paid great attention to!

On August 8-1 1 day, there will be heavy rainfall from south to north in Taiwan Province province, northern Fujian, Zhejiang, Shanghai, Jiangsu, central and eastern Shandong, eastern Hebei and central and southern Liaoning, and there will be heavy rains in some areas, and heavy rains in the middle of Taiwan Province island and eastern Zhejiang. The accumulated rainfall in the process is generally 100-250 mm, 300-500 mm in eastern Zhejiang, and even more than 500 mm in the middle of Taiwan Province Island.

Among them, the rainfall on the island of Taiwan Province Province began to strengthen today and lasted until 10 day; The main rainfall period in Zhejiang and Shanghai is 9-10; Jiangsu 9th night-1 1 day; Rainfall in Shandong, eastern Hebei, Liaoning and other places will also increase significantly from 10 to 12, but there is still some uncertainty about the location and intensity of rainfall in the later period, which needs attention.