Thunderstorms in Bai Lu under the solar terms, Guangzhou will turn sunny and hot again

"Once the breeze won, Bai Lulu was condensed." This year, Bai Lu's solar terms, Guangzhou first had thunder showers, and then gradually turned to sunny. When the northern steps were getting in the autumn, Guangzhou was still in a hot summer.

On September 7th or 8th of each year, the sun runs to the Yellow Meridian 165 degrees for the Bailu solar terms. The white dew is getting colder, and white dew is seen on the grass and trees at night. From the perspective of the solar terms, at this time, the summer is dead, and the heat is gradually disappearing. Most of the regions in my country are high and cool, and the clouds are light and light. A hard work of spring and summer, experienced the wind and rain, and sent away the high temperature and heat, ushered in the season of pleasant climate, making people particularly happy.

As the saying goes: "Bai Lu Qiu Qiu Qiu is split at night, cold and cold overnight." At this time, the summer wind is gradually replaced by winter wind, blowing northwind, cold air south to gradually frequent, coupled with the position of the sun in direct sun, the northern hemisphere has changed the sunshine time of the northern hemisphere change time, and the sunshine time in the northern hemisphere changes changes. Short, the strength of the sunshine is weakened, the night is often sunny and cloudy, and the ground radiation heat dissipation is fast, so the temperature decrease is gradually accelerating.

During the Bailu solar term, with the gradually active cold air, the autumn territory expands rapidly on the territory of our country. The area of ​​North China and Huanghuai will start the autumn process during this period. By the end of Bailu's solar terms, most of the northern areas will basically enter the true autumn. From the perspective of all year, in the northern cities, Beijing, Tianjin, Shijiazhuang, Zhengzhou and Jinan all entered autumn during Bai Lu. Chengdu, located in the southwest, will bid farewell to the summer heat in the autumn rain, and enter the autumn during Bai Lu. In Jiangnan and most in South China, although the heat of the midsummer during the period of Bai Lu has gradually retreated, the real autumn will wait until the autumnal point of solar terms or even later.

China Weather Network has counted the high temperature daily during the Bailu period in the past 30 years (1991-2020). It is about 2 days a year. Fuzhou and Changsha ranked second and third with 44 days and 37 days. There are 35 days in Guangzhou.

Although the average temperature and maximum temperature of Guangzhou Bailu solar terms are about 0.8 ° C lower than the summer heat, which are 27.4 ° C and 31.8 ° C, but it is still summer temperature, and high temperature above 35 ° C may also appear. At the same time, the precipitation is reduced compared with the previous a few solar terms, with an average of about 70 to 80 mm, but the time and space distribution is very uneven. When the tropical weather system such as typhoons is influenced, some years will exceed 200 mm.

As soon as this year entered the Bailu solar terms, the weather in Guangzhou changed the stable and clear state a few days ago, and it will continue to encounter thunderstorms. From September 7th to 9th, due to the influence of east wind fluctuations and weak cold air, the number of clouds in Guangzhou increased, there were local heavy rain in the thunderstorm, and local lights were accompanied by strong lightning and short-term heavy precipitation. From September 10th to 12th, the low-level weakly changing lines were maintained. From September 13th to 16th, Guangzhou was mainly cloudy to sunny.

Text/Guangzhou Daily · Xinhuacheng Reporter: Yakas Guangzhou Daily · Xinhuacheng Editor: Wu Yizhen

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