1 hour in advance!They accurately "capture" tornado!

Around 15:30 on July 4th, an EF1 -level tornado occurred near Yundonghai Street, Sanshui District, Foshan City, Guangdong Province, which lasted about two minutes, causing the branches to break, the factory workshop was damaged, the two were injured, and the road was destroyed. 900 meters, the maximum width is about 70 meters. 1 hour before the tornado (14:30), the meteorological department issued early warning information, which clearly reminded that there will be a tornado, and the local defense has won the advance amount.

Around 15:30 on July 4th, Sanshui District, Foshan City, Guangdong Province, clearly visible to the distant tornado. Source: Foshan Meteorological Bureau

Back to July 1st, the Foshan Meteorological Observatory held a press conference to predict that due to the influence of the typhoon "Siaba", the risk of the tornado in the Foshan city from the 2nd to 4th was higher. On July 2nd, the Foshan Meteorological Observatory and the Nanhai District Meteorological Observatory released the first Tornado alarm in 2022. The EF1 -level tornado occurred in Xiqiao Town, Nanhai District, Nanhai District.

At 14:20 on July 4th, Huang Xianxiang, a senior engineer of the Foshan Meteorological Bureau, and the chief of the Municipal Tornado Research Center, observed the storm of the super single storm through the radar back map, and quickly judged that there may be a tornado and a tornado and a tornado and a tornado and a tornado. The area of ​​its influence. At 14:30, the Foshan Meteorological Observatory issued a tornado special alert to the town street: "It is expected to have a tornado in the southwest of Sanshui, Yundonghai, and Leping within two hours. The owners of the building should organize personnel to evacuate as soon as possible. "

Foshan Meteorological Observatory Release Conduct Early Warning Information Picture/Li Congcong

The early warning information was forwarded to the corresponding "three defense" work groups in Foshan and Sanshui District. Relevant persons in charge of Sanshui District Emergency Management, Culture, Radio, Television Tourism and Sports and other departments immediately responded. 17 channels such as Weibo, WeChat, websites, television stations, and radio are rolled to release tornadic warning information to remind key areas to strengthen temporary (structure) buildings such as iron houses.

On July 4th, Shihuzhou Xinghua School of Yundonghai Street quickly forwarded the tornado warning in the campus WeChat/Li Congcong

Chen Guangqian, deputy director of the Yundonghai Street Emergency Management Office of Sanshui District, introduced that after receiving the tornado alert, the streets would notify the masses through the WeChat public account, village group, and emergency speakers as soon as possible. , Fire, Power Supply, Municipal Emergency Rescue team personnel, make emergency rescue preparations. Yundonghai Street Shihuzhou Xinghua School quickly passed forward to the campus WeChat to forward the tornado warning, reminding students to pay attention to safety on the way home from school.

At 15:05, Huang Xianxiang judged the tornado based on the characteristics of radar detection. Tornado will touch the ground near the Sanshui District Meteorological Bureau in Yundonghai Street, and immediately call the staff of the district meteorological bureau to shoot the tornado. The image image of the rolling ground is completely captured. According to Sanshui Tornado's actual and super single storm in the future, at 15:38, Huang Xianxiang reminded the Meteorological Bureau of Huadu District, Guangzhou, to pay attention to the risk of tornado; at 15:43, the Huadu District Meteorological Observatory officially released a tornado alarm.

It was confirmed by on -site investigation that around 16:00 on the 4th, the EF1 -level tornado occurred in Huadu District, with an damaged area of ​​about 4800 square meters.

At around 16:49 pm on July 4, tornado appeared in Chengxi Village, Huashan Town, Huadu District. The picture shows the scene of the scene after the tornado passed:@图 weather

Why is the tornado with small scale, fast development, strong sudden and short life history?

Huang Xianxiang said that at the beginning of the typhoon "Siaba", the Foshan Meteorological Observatory and the Municipal Tornado Research Center strengthened the joint duty. Two staff members arranged for each day and night to conduct uninterrupted duty, pay close attention to the tornado movement. In the context of the typhoon circulation, the risk of the tornado is very high. When you see a single "skewers" one after another, the forecasman's acuity and vigilance are greatly improved through comparing the tornado risk index of the previous calculation. The continuous development of the super single storm has been continuously developed, and the radar echo characteristics are more obvious. The precise meteorological monitoring provides strong support for the early discovery and early warning of the tornado process.

Produced by China Meteorological News Agency

Author: Li Congcong Wu Tong

Edit: Jiang Hong Zhang Hanlin

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