Temperatures in many central and eastern regions hit a record low in the second half of the year. Southern cities "run into autumn"

　　China News Service, Beijing, September 22. It was rainy and cold in autumn. By late September, autumn in the meteorological sense was accelerating the expansion of the "territory."

At present, the arrival of a new round of large-scale precipitation has caused the temperature in many places in the central and eastern regions to hit a record low in six months.

The drop in temperature has also pushed the summer-autumn dividing line on the weather map to the south, and many areas in the south are "running into autumn".

Data map.

Photo by China News Agency reporter Wu Junjie

"Autumn Rain" goes online in the central and eastern regions 

　　The last round of large-scale precipitation across the country has just left, and a new round of precipitation weather process has "punched" in the central and eastern regions.

　　The Central Meteorological Observatory predicts that from the night of the 21st to the 23rd, affected by the eastward movement of the upper-altitude trough, there will be moderate to heavy rains and local heavy rains in the eastern part of Southwest China, Jianghan, western Jianghuai, Jiangnan, western South China, and northern China; from the night of 21st to 22nd In Japan, the central and eastern parts of the northwestern region dropped by 4 to 6°C.

National Precipitation Forecast Map (20:20, September 22-23, 20:00) Source: Central Meteorological Observatory

　　From 22 to 23, there were light to moderate rains and local heavy rains in northern China and eastern Northeast China. Among them, southern Anhui, northeast and southern Jiangxi, southwest Zhejiang, southern Guizhou, eastern Yunnan, northwest Guangxi, and northern Guangdong , There were heavy rains (50-90 mm) in places such as southeastern Tibet.

　　It is worth mentioning that this round of precipitation process is conducive to the storage of reservoirs in the Hanjiang River Basin, but Shaanxi, Sichuan, Chongqing, Hubei and other provinces and cities in the junction area need to be alert to various secondary disasters caused by heavy rainfall.

　　The Ministry of Water Resources and the China Meteorological Administration jointly issued a blue flash flood disaster meteorological warning at 18:00 on September 21.

　　From 20 o'clock on September 21 to 20 o'clock on September 22, local flash flood disasters may occur in northwestern Guizhou, northwestern Yunnan, and southeastern Tibet.

At the same time, the Ministry of Natural Resources and the China Meteorological Administration also jointly issued a meteorological risk warning for geological disasters. It is estimated that from 20:00 on September 21 to 20:00 on September 22, the meteorological risk of geological disasters in the northwestern part of Guizhou is higher (yellow warning) ).

Data map.

Photo by China News Agency reporter Wu Junjie

The cooling mode starts the autumn process in the north and south to accelerate

　　The sound of rain urges early cold. Under the influence of precipitation and cold air, the temperature across the country will drop significantly, and the temperature in some places has even made people feel as cold as late autumn.

　　In the north, the northwest region was the first to start cooling, such as Xi'an. The highest temperature on the 20th was 29.3℃, and it will drop to only around 20℃ from the 21st to the 23rd.

Temperatures in North China will also fluctuate. The highest temperature in many places will be less than 25℃ around the 30th.

In many places in Northeast China, the temperature may hit a record low after the beginning of autumn around the 22nd. Among the cities, the lowest temperature in Harbin, Changchun, and Shenyang is less than 10℃.

　　The Jianghuai, Jiangnan and other places in the south have been raining frequently in the past few days, and the temperature has been low. In the next few days, there will be cold air and precipitation, and the temperature will continue to drop. The highest temperature in Hefei, Wuhan and other cities will be only 20 early next week. The temperature is around ℃, which is almost equivalent to the temperature level in late October or even early November of the year. It is cold as late autumn and has become the most obvious area of ​​low temperature in the country.

　　The fall in temperature also pushes the summer-autumn dividing line to the south. During the annual Bailu solar term, the autumn range continues to expand. The summer-autumn dividing line usually advances along the Huaihe River. As of September 17, Hubei, Anhui, Hunan, Jiangsu, Zhejiang, etc. Autumn is already in some parts of the land.

Hangzhou started the autumn process on the 17th. The average autumn time in Hangzhou is generally in late September. In the past five years, Hangzhou’s summer and autumn transitions have been completed in October. If autumn falls on September 17 this year, it is a “running” entry. autumn.

Data map: On September 7, there was rain in Shenyang, and citizens traveled in the rain.

Image source: Visual China

Be wary of autumn typhoons!

　　At 2 pm on September 21, this year’s 12th Typhoon "White Dolphin" (English name: Dolphin; name source: Hong Kong, China;) formed on the southern ocean of Japan, and its center was located approximately south of Kochi Prefecture, Japan at 5 o’clock. 900 kilometers.

　　The Central Meteorological Observatory predicts that the "white dolphins" will move northward at a speed of 10-15 kilometers per hour. The intensity will gradually increase from 21 to 23, and the strongest can reach tropical storm level or severe tropical storm level (9-10, 23-28 m/s), on the 24th, it gradually weakened and turned into an extratropical cyclone along the southern coast of Japan.

The "White Dolphin" will have no impact on China in the future.

　　What needs attention is the typhoon that will generate in early October.

According to the Central Meteorological Observatory, 1 to 2 typhoons will occur in the South China Sea or the Northwest Pacific in early October.

　　On the afternoon of the 21st, the China Meteorological Administration held a briefing meeting around the typhoon.

It was revealed at the meeting that as of September 21, 2020, there were a total of 12 typhoons in the Northwest Pacific and the South China Sea, which was 6.1 fewer than the average (18.1) over the same period of the year.

Among them, four typhoons such as "Parrot", "Hagupit", "Mikra" and "Higaus" made landfall in coastal areas of China, and the average number of typhoons (5.8) was 1.8 less than that of the same period.

　　Right now, the National Day holiday is approaching, and some people are more concerned about whether there will be a typhoon "spoiler" during the holiday?

　　Qian Chuanhai, director of the Typhoon and Marine Meteorological Forecast Center of the China Meteorological Administration, said that from now on, it is difficult to predict the typhoon during the National Day.

However, based on previous data, typhoons have landed in China during the National Day holiday in 17 years since 1949. On average, typhoons landed in China once every 4.2 years during the National Day.

The last typhoon that landed in China during the National Day was "Mina" which landed on October 1, 2019 (End)