Is there a "autumn tiger" in the next two weeks?The National Meteorological Center responds to each script: the opportunity is very small

On September 6, the China Meteorological Administration held a press conference. Xiao Yan, deputy director of the National Climate Center, introduced that the most significant feature of the climate in August was high temperature and rain. The national average temperature was the highest in history since 1961, and the national average temperature was 22.4 ° C, which was 1.2 ° C higher than the same period of the year.

Xinhua News Agency map

Xiao Yan said: "The highest temperature of 500 national meteorological stations in the country exceeded the historical pole value in August, and the highest temperature of 267 stations was flat or broke through the historical pole."

To this end, the reporter of "Daily Economic News" asked at the press conference: "How is the high temperature weather in our country this year? Will there be 'autumn tigers' in the next two weeks, and will high temperature weather continue to develop?"

In this regard, Yang Ruilin, a staff member of the National Meteorological Center, said in a question from the reporter of the Daily Economic News that it is expected that there are no large -scale high -temperature weather in the southern region in the next two weeks. Hunan, Jiangxi, and southern Hubei have about 35 ° C in high temperature weather.

A total of 65,000 early warning information was issued in August

When introducing the major weather and climate events in my country in August, Xiao Yan pointed out that the high temperature days were abnormal, and the regional high temperature process continued to affect my country. From June 13th to August 30th, there are continuous and large -scale high temperature weather in the central and eastern regions of my country. This high temperature process has the characteristics of long duration, wide range, strong strength, strong extremes, and great influence. In 1961, there was the strongest weather record. In August, the average high temperature nationwide was 5.2 days, which was 2.7 days more than the same period of the year, and the most history since 1961. The high temperature days of high temperatures in the southwest of the southwestern southwest, central and central central China, central and southern East China, and southern Shaanxi are generally 20-30 days, which are generally 15-20 days higher than the same period of the same year.

Meteorological droughts such as the Yangtze River Basin and other places have continued to develop. Affected by the continuous high temperature and rain, a large area of ​​summer drought occurred in the Yangtze River Basin. As of August 31, the middle and lower reaches of the Yangtze River and the central and southern parts of Chongqing, the western Sichuan, southeast, and the central and eastern parts of Tibet have moderate to severe meteorological droughts and special drought in local areas. The continuous high temperature and drought have caused many mountains and forest fires in Chongqing, Sichuan and other places. The water level of the Yangtze River and Dongting Lake and Poyang Lake are significantly lower than the same year, and it has a greater impact on agricultural production, water resources and power supply in some areas.

"In August, a total of 65,000 early warning information was released, an increase of 26%compared to the same period last year. The high temperature in the early warning signal became the main type of early warning event. Among them, the number of high -temperature red early warning information accounted for the total number of moon red warning information. 87.8%. "Xiao Yan said.

At the same time, in response to the weather conditions during the coming Mid -Autumn Festival, the National Climate Center introduced that there were no large -scale heavy rainfall, high temperature weather, and low temperatures in the central and eastern regions.

After the typhoon, everyone generally cares about whether there will be "autumn tigers", and then encounter high temperature.

In this regard, Yang Ruilin introduced that it is expected that in the next two weeks, there is no large -scale high temperature weather in the southern region. The chance of "autumn tigers" will have a small chance, but from 6 to 8, there will be about 35 ° C in some areas of Hunan, Jiangxi, and southern Hubei.

Five conditions are required to achieve artificial rainfall

Aiming at the continuous high temperature and drought in the Sichuan Basin and the middle and lower reaches of the Yangtze River in my country, artificial rain increases have become the focus of everyone's attention.

In September, although the drought was relieved, the rainfall would still occur in some areas.

Xiao Yan introduced that in September, it is expected that there are more precipitation in the central and eastern parts of the northwest, north of the southwest, and other places. Among them, some areas in southwestern Shaanxi, eastern Gansu, southern Ningxia, southeast Qinghai, and northern Sichuan have more than 20 % to 50 %; the precipitation of other parts of the country is close to the same period of the year to less, of which central and southern Anhui, northern Jiangxi, eastern Hubei, Hunan, Hunan Northeast is 50 % to 80 %.

In this regard, Zhao Zhiqiang, deputy director of the China Meteorological Administration's artificial impact, pointed out that in September, it focused on focusing on Hunan, Jiangxi, Guizhou, Hubei, Anhui and other regions. Some dry areas are still developing, and artificial rain increase operations will be implemented in these areas.

Zhao Zhiqiang introduced that the cloud that can achieve artificial rainfall generally has the following conditions: first, the lack of ice nucleus or cloud tuberculosis in the cloud; the other is that the thickness of the clouds is generally greater than 2 kilometers; the third is that there must be abundant water vapor circulation and the cloud in the cloud and the water vapor circulation and In addition, if there is a good rising airflow in the cloud, you can accelerate the transformation process from clouds and water to precipitation; fourth, to ensure the airspace; Fifth, from conditional forecasting, monitoring, solution design, command, operation, operation to effect assessment full process Efficient organization.

Daily Economic News

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