Text/Yangcheng Evening News All-Media Reporter Liang Yitao Correspondent Yang Guojie Wang Tianwei
August 7 is the "beginning of autumn" among the 24 solar terms. Although the name has "autumn", it has always been difficult for the weather in Guangdong to be associated with "high autumn and cool" before and after the arrival of the beginning of the autumn solar term. On August 6, before the beginning of autumn, strong convective weather such as high temperature, wind and rain and even hail appeared in Guangdong. The meteorological department of Guangdong Province reminded that all parts of Guangdong need to do a good job in the defense of local strong convective weather while doing a good job in high temperature defense.
The day before the beginning of autumn, there was a "hot rain and hail" weather in Guangdong
According to the observation of the Guangdong Provincial Meteorological Department, on August 6, the day before the beginning of autumn, most of Guangdong was still hot, and the Lianzhou National Basic Meteorological Station recorded the highest temperature of 39.1°C at the National Basic Meteorological Station in the province. In Guangzhou, the maximum temperature was recorded at the Guangzhou National Basic Meteorological Station of 37.5°C.
In the continuous high temperature, many places in Guangdong experienced thunderstorms and strong winds on the afternoon of August 6, and Xiaoice and hail occurred in Dongguan Guancheng, Guangzhou Zengcheng, Heyuan Source City and other places.
After August 11, the high temperature in the southern part of the mainland may weaken
The Guangdong Provincial Meteorological Observatory predicted on August 6 that on the day of the "beginning of autumn" on the 7th, most cities and counties in Guangdong will be sunny and hot, and there will be scattered (thunder) showers in cities and counties in eastern Guangdong. On that day, the maximum temperature in most parts of Guangdong was generally between 35 °C ~ 37 °C, and some cities and counties could reach 38 °C ~ 39 °C. It is expected that from the 8th to the 9th, most cities and counties in Guangdong will have sunny and hot weather, with local (thunder) showers. During this period, the daily maximum temperature in most cities and counties in Guangdong is generally between 35 °C ~ 37 °C, and some cities and counties can reach 38 °C ~ 39 °C.
The Guangzhou Meteorological Observatory predicted on August 6 that under the control of the subtropical high pressure, Guangzhou will be dominated by sunny to cloudy weather from the 7th to the 9th, with high temperatures and hot temperatures, with a maximum temperature of 36~38 °C, of which there will be local (thunder) showers on the 7th.
When will the hot weather in many places in the mainland, including Guangdong, subside? According to the medium-term weather forecast of the Central Meteorological Observatory on August 6, it is expected that the high temperature in the southern part of the mainland will weaken after August 11. Combined with the 10-day trend forecast of the Guangzhou Meteorological Observatory on August 6, it is expected that the subtropical high will weaken from August 11 to 15, and the precipitation in Guangzhou will increase due to the influence of the southwest airflow.
Reminder: To prevent high temperatures, it is also necessary to prevent local strong convective weather
The Guangdong Provincial Meteorological Bureau reminded on August 6 that the recent high temperature and heat in Guangdong have caused residents to pay attention to heatstroke prevention and cooling. Recently, the northeast wind from the periphery of the tropical system and the southwest wind from the ocean converge in the eastern part of Guangdong, and the water vapor is easy to form clouds and rain.
Why is the beginning of autumn not "autumn"?
Although the name has the word "autumn", according to the meteorological literature data, the temperature is the highest in Guangdong before and after the beginning of the autumn solar term. According to the Guangdong Provincial Meteorological Department, the Qujiang National Basic Meteorological Station in Guangdong Province recorded 42°C on the day of the beginning of autumn on August 12, 1953, making it the highest temperature record in the history of the National Basic Meteorological Station in Guangdong.
According to the meteorological department of Guangdong Province, according to the continental climate season division standard, when the 5-day sliding average temperature of a place for 5 consecutive days ≤ 22 °C, it can be judged that the local meteorology has entered autumn. According to this criterion, Guangdong usually gradually enters autumn from mid to late October to November from north to south, and the perennial "autumn onset" date in Guangzhou is November 9. Nationally, most of the central and eastern part of the continent was meteorologically summer on August 7. Some northern provincial capitals, such as Lanzhou, Yinchuan, Hohhot, Changchun, Harbin and other cities, reached the "autumn" standard between August 13 and 19 after the arrival of the beginning of the autumn solar term.
Li Jianji, director of the Guangdong Ecological Society, said that the mainland is vast, and the 24 solar terms are not necessarily applicable to all regions of the mainland, especially Guangdong, which is geographically relatively southern. However, from the perspective of ecological environment, plants related to autumn, such as Hetapok in autumn and winter, individual saplings will bloom around the beginning of the autumn solar term in Guangzhou. He Yongjie, a member of the Chinese Meteorological Society, said that "Li" means the beginning, and "Qiu" means that the grain is ripe, and literally "Liqiu" can be understood as "autumn is beginning" rather than "has gone deep into autumn"; Most of the places on the mainland are still in summer, and after the "beginning of autumn", we will gradually see the transformation of everything towards autumn.
Editor: Yang Haoxian
Source: Golden Sheep Network