Jinxiang County Meteorological Bureau Huangli

On August 6 5438+00 17: 25, the super typhoon "Sang Mei" landed in mazhan town, Cangnan County, Zhejiang Province. When landing, the central air pressure is 920 hectopascals, and the maximum wind speed near the center is 60 meters per second. Although its ferocious face has just been revealed, it has created many firsts and is called "the king of typhoons".

In the past 50 years, the intensity of typhoons landing in Chinese mainland has been the first.

According to historical data, the central air pressure of "Sang Mei" when it landed was lower than 923 hectopascals when typhoon 1956 landed, which was the strongest typhoon landing in Chinese mainland in recent 50 years. At the same time, "Sang Mei" has also become the strongest typhoon that landed after the typhoon intensity was reclassified in China.

According to the real-time data of the automatic station of Zhejiang Meteorological Bureau, there was a strong wind of 68.0 m/s at the mesoscale automatic station near Xiaguan, Cangnan, Zhejiang. This record not only broke the historical maximum wind speed of 59.6m/s in Zhejiang Province, but also was very rare in the measured maximum wind speed of typhoons landing in Chinese mainland. Affected by the typhoon landing, as of 10/7, there were 1 stations with rainfall exceeding 100 mm, and there were 10 stations with rainfall exceeding 50 mm, with the maximum of Xin 'an 100.9 mm. "

Enter the first-class meteorological emergency response state at the first time.

In order to provide better meteorological services for Sang Mei and reduce losses, Zheng Guoguang, deputy director of China Meteorological Bureau, signed the Typhoon Emergency Response Order of China Meteorological Bureau at 9: 30 am on August 6, announcing that Zhejiang Meteorological Bureau, Fujian Meteorological Bureau, National Meteorological Center, National Satellite Meteorological Center and China Meteorological Bureau's film and television publicity center entered the typhoon first-class meteorological response state. It is understood that this is the first time that China's meteorological department has entered the first-class meteorological emergency response state.

According to the regulations, in the first-class meteorological emergency response state, the above-mentioned units will implement a 24-hour shift system for important people to track the typhoon state around the clock; Zhejiang Meteorological Bureau and Fujian Meteorological Bureau report their work to China Meteorological Bureau four times a day; The National Meteorological Center reports the news of typhoon positioning, early warning and forecast every 1 hour, and organizes consultations with the meteorological bureaus of relevant provinces (autonomous regions and municipalities) every 3 hours.

Most "standard" typhoon

Interestingly, "Sang Mei" is the most "standard" typhoon to some extent. "Sang Mei" drew an almost straight diagonal line on the map and went straight to northern Fujian and southern Zhejiang. All the way "crazy long", quickly developed into a super typhoon with a wind force of not less than 17, and the maximum wind speed near the center reached an astonishing 60 meters per second. "Sang Mei" has several characteristics: high strength, fast moving speed, compact structure, small "head" but very clear typhoon eye. Meteorologists believe that "Sang Mei" has all the remarkable characteristics of a typhoon and is a very "standard" typhoon.

Wang Dongfa, director of Zhejiang Meteorological Observatory, compared "Sang Mei" with "Yunna" which attacked Zhejiang the year before last. He said that the typhoon "Yunna" has a large area and the affected area is relatively large, while the center of "Sang Mei" has strong air pressure and fast wind speed, so the disaster degree brought by "Sang Mei" will be even heavier.

The power of super typhoon

On August 30th, when Sang Mei landed at Cangnanma Station in 10, he was furious.

She broke out all the energy she had accumulated at sea! It was July 17th of the lunar calendar, which coincided with the astronomical tide in July of the lunar calendar. When "Sang Mei" landed on this day, it is likely that there will be a "triple encounter" of storms and tides, which is extremely destructive. (The biggest spring tide appeared at 12, and Sang Mei landed at 5: 25, so the power of storm surge was not fully reflected. ) In the dark, Cangnan has become a hell at this time! The wind roared between heaven and earth, and rain came from all directions. The meteorological anemometer in Xiaguan, Cangnan, was destroyed in a few seconds after recording the gust wind speed of 68 meters per second! The maximum wind speed of Dinghe Zhangyan 17 is 75.8m/s, exceeding 17! The gust measured at Hedingshan Wind Power Station in Wenzhou is 8 1M/S! Navy escort ship encountered Sangmei: all anemometers failed in super strength, and all anemometers reached the upper limit of 75m/s! The small circulation in Sang Mei means a huge pressure gradient. At Shimonoseki 16, the air pressure at this station is 963.6hpa 16- 17, and at some time it is 938.2hpa, so the air pressure will decrease by 25.4hpa within at least 54 minutes! Driven by the strong wind, the waves became crazy. At this time, the typhoon shelter was vulnerable under the attack of the powerful storm surge in Sang Mei. People finally realized their situation, and people on fishing boats fled. The fishing boats in the typhoon shelter were torn apart by the wind like pieces of paper and sank one after another. Many people sank with the fishing boats even before they fled!

Strong winds not only sank fishing boats, but also completely collapsed the power grid in Zhejiang coastal areas! It is understood that in East China, four 500 kV lines tripped, six 220 kV lines tripped, and 32 1 10 kV lines tripped. One 220 kV substation in Zhejiang and Fujian were all shut down. Three counties in Wenzhou, Cangnan, Taishun and Pingyang, all experienced large-scale power outages.

The water level of the Aojiang River has reached 7.8 meters, exceeding the warning water level 1.8 meters! Nanji island set off a 10-meter wave! People in the town began to cry helplessly. Now they find that the wind king they face today is not enough to resist on their own. The so-called windproof facilities were stripped off one by one by the storm. Maybe all they can do at this time is hold the iron pillar, lean against the wall and cry and pray to heaven. The earth trembled under the ravages of Sang Mei. All the buildings were damaged to varying degrees. More than 80,000 houses collapsed in fuding city, and 12- 15 houses were damaged. At this moment, Dai Wen and Sangmei are together. Sang Mei announced to the world: Wendy, she is back.

After Sang Mei, Cangnan was in chaos. In their trusted typhoon shelter, nearly 23% of ships sank and countless trees were uprooted. More than 70,000 fishing rafts in the city were all destroyed; No house within 20 kilometers of Fuding coast is spared. At 5 o'clock on June 5438+00, it began to rain in Zhejiang Province, and the rainstorm areas were mainly concentrated in Wenzhou and Taizhou. There are 33 stations with accumulated rainfall greater than 100 mm, 3 stations with rainfall greater than 200mm, 9 stations with rainfall greater than 300mm and 4 stations with rainfall greater than 350mm: Cangnan Changchan 466mm and Jinxiang 379mm respectively. By 20: 00 on 10, the rainfall coverage area above 100 mm was 35 12 square kilometers, the rainfall coverage area above 200 mm was 509 square kilometers, and the rainfall coverage area above 300 mm was 1 13 square kilometers. 10 "Sang Mei" landed on the night, the maximum water increase recorded in Wenzhou was 3.58 meters, and the actual maximum tidal level was in the early 6 meters, which was about 60 centimeters different from the final tidal level forecast! People took to the streets, lost in confusion, still don't believe this fact, and more people are crying helplessly. According to incomplete statistics, nearly 600 people in Fujian and Zhejiang were killed in this disaster.

A brief comment on sang mei

The previous disturbance in Sang Mei was transformed from a cold vortex in the upper air, and intensified into a tropical storm on August 5th, moving westward at a faster speed? By moving westward, we avoided becoming a paradise. However, Sang Mei was born at the wrong time. At this time, Sitai is the craziest time of the year-three people dance together. Many people are worried that Sang Mei will be affected by two other tropical cyclones, and its track intensity will become strange. However, Sang Mei is still going its own way, steadily moving towards the East China Sea, and its intensity is gradually increasing. On August 9th, the center of Sang Mei entered the eastern part of the East China Sea. At that time, because the water temperature there was as high as 30℃, Sangmei broke out quickly. The eye of the wind is round, and Sang Mei was recognized as a super typhoon of 60m/s by CMA that night. JTWC also gave a super evaluation of this year's highest intensity 140 knots, which was a category five typhoon. However, Sang Mei is a strange tropical cyclone, with a 7-level wind circle with a radius of less than 400 kilometers and a small circulation. This makes people in Zhejiang and Fujian feel that she exists, so ......

On August 10, "Sang Mei" entered the East China Sea, still moving at a speed of 30 km/h to the junction of Fujian and Zhejiang, and landed near Cangnan, Zhejiang that night. According to the real-time data of the automatic station of Zhejiang Meteorological Bureau, there was a strong wind of 68.0 m/s at the mesoscale automatic station near Xiaguan, Cangnan, Zhejiang Province, which not only broke the historical maximum wind speed of 59.6 m/s in Zhejiang Province, but also was very rare even in the extreme wind speed measured by the typhoon landing in Chinese mainland, becoming the strongest typhoon landing in Chinese mainland in recent 50 years ... Because of the small circulation, the intensity of Sang Mei weakened rapidly after landing. In just five hours, it was downgraded from a super typhoon to a strong tropical storm and weakened into a tropical depression on 1 1, but it took away more than 600 fresh lives. ..