Expert interpretation: How long does the high temperature comprehensive intensity this year?

Since late July this year, there are large -scale and strong high temperature weather in the middle and lower reaches of the Yangtze River in my country. "Heat -Cheng Dan furnace" ... So how hot is the south this year? Why is it so hot? How long does it take to get hot?

How hot is the south?

Since the summer of this year, my country has a large number of high temperature days, wide coverage, and the highest temperature of the highest temperature in many places. As of today (August 13), the Central Meteorological Observatory has issued high -temperature warning for 24 consecutive days, of which the highest level of red warning has been released for two consecutive days on the 12th and 13th.

Chen Lijuan, chief forecast at the National Climate Center, introduced that in the next two weeks, high temperature weather in the south will continue. It is expected that the comprehensive intensity of high temperature weather this year will be the strongest since the complete record in 1961, but the current regional high temperature process has not exceeded 2013.

From the perspective of regional conditions, the temperature in Shanghai, Zhejiang, Chongqing and other places also broke a number of records. Wang Zhi, chief forecaster of the Shanghai Central Meteorological Observatory, introduced that as of this morning (August 13), Shanghai appeared at 35 ° C for a total of 40 days above 35 ° C, 6 days above 40 ° C, and the extreme maximum temperature was 40.9 ° C. July 13.

Lou Xiaofen, chief forecaster of Zhejiang Meteorological Observatory, introduced that since July this year, Zhejiang Province has significant extremely high -temperature heat wave weather in Zhejiang Province. It has the characteristics of high temperature and early development, high temperature daily records, and records of temperature value. After the plums in Zhejiang, a large range of high temperature appeared, and the intensity increased rapidly. Up to now, the average number of high temperatures above 35 ° C in Zhejiang Province is 31 days on average, and the average number of days above 38 ° C is 16 days, all of which are the largest period of history. In addition, since July, the average temperature of Zhejiang Province was 30.7 ° C, and the average maximum temperature was 36.5 ° C, which was the highest in history.

Luo Juan, chief forecast at Chongqing Meteorological Observatory, introduced that since July this year, Chongqing has a significant temperature, significant precipitation, high temperature days and high strength. At present, two rounds of high temperature weather process (July 4-17 17 , From July 24th), the average high temperature day in Chongqing has reached 29.3 days, more than 29.3 days since 1951, and second only to 30.2 days in 2006. The extreme maximum temperature in the city appeared in Beiyi, and the highest temperature in August 11 reached 43.7 ° C. The highest temperature in Fengjie County, Tongnan District, Liangping District, and Chengkou County also exceeded the local historical extreme value.

Why is the southern so hot?

Why is Southern this year so hot? Chen Tao, chief forecaster of the Central Meteorological Observatory, said that the main cause of high temperature weather has a certain relationship with the abnormal conditions of the atmospheric circulation. From the current monitoring, the Western Pacific subtropical high -pressure range is large and strong. Under its control, the southern region of my country is under the control of the sinking air. Near the ground heating is relatively strong, so large -scale high -temperature weather appears.

How long will it be hot in the south?

Chen Tao introduced that in the future, there is no obvious tropical system on the tropical ocean in the south. The subtropical high -pressure will still control the area in the middle and lower reaches of the Yangtze River. High -temperature weather will still be a state of sustainable development or maintenance.

The Central Meteorological Observatory predicts that in the next week (August 13th to 19th), high -temperature weather in Jianghan, Jianghuai, Jiangnan, and Sichuan Basin will continue. The maximum temperature in parts of the north and other places can reach 40 ° C.

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