On the morning of July 23, from the Fengyun No. 4 high-definition visible light satellite cloud map, today's typhoon fireworks east of Taiwan in China are still waddling forward unhurriedly, compared with before, the circulation of today's typhoon fireworks is still vast, and part of the wind and rain in the periphery have begun to reach many places in Shanghai, Zhejiang, and some areas have appeared more than 1 hour and 50 mm of ferocious rainstorms. The cloud belt to the east further "self-reliant portal", cutting off the connection with the fireworks, began to rotate significantly, and it will develop into Typhoon Nibert No. 8 of the year.
On satellite cloud maps, the most conspicuous feature of typhoon fireworks is its huge wind eye. Today, its eye of the wind has become particularly large under the replacement of the eye wall round after round, becoming a giant wind eye with a diameter of more than 100 kilometers, which does not look like a wind eye from the satellite cloud map, but a huge hole in the center of the typhoon, which is of course the wind eye, and there is a clear eye wall structure on the periphery. The east-west span of Shanghai is only 100 kilometers, and such a huge wind eye is enough to fit into the whole of Shanghai.
Although the large eye of the wind and the large circulation do not necessarily represent the strength, the characteristics of this large-eye circulation typhoon are sufficient water vapor, a wide area of strong winds, a wide range of impact, and heavy rain and storm surges may be very violent. For example, the Central Meteorological Observatory's sea gale forecast points out that the 9-level gale of typhoon fireworks has crossed the south-central Part of the East China Sea and the ocean east of Taiwan, and the southern part of the East China Sea has fully blown up winds of level 10 or above, which is the largest strong wind area this year, and may also be the strongest strong wind area affecting China this year.
The forecast of the Central Meteorological Observatory also pointed out that from the afternoon of July 22 to the day of July 25, the east ocean surface of Taiwan, the Bashi Strait, the Taiwan Strait, the East China Sea, the waters near the Diaoyu Islands, Hangzhou Bay, the Yangtze River Estuary, the southern Yellow Sea and the northern and eastern coasts of Taiwan Island, the north-central coast of Fujian, the eastern and northern coasts of Zhejiang, the eastern and northern coasts of Zhejiang, Shanghai, the southern and eastern parts of Jiangsu, and the gusts of 10 to 12 will gradually increase to 7 to 9, with gusts of 10 to 12; Gusts of wind 13 ~ 14; "fireworks" center through the nearby sea surface or area of the wind force of 13 ~ 16, gusts of 17 and above, because the typhoon fireworks close to China may be around July 25, this day is the sixteenth lunar calendar, is the astronomical tide period, such a large range of strong wind areas brought by the storm surge superimposed astronomical tide the threat may be extremely severe, friends along the East China coast these days do not go near the seaside, especially Zhejiang Shanghai should be particularly vigilant.