BEIJING, Beijing, August 7 (Xinhua) Today is the beginning of autumn in the 24 solar terms. The weather in the whole country is basically dominated by two major themes: rainfall and high temperature. In the central and eastern regions, the high temperatures in Northeast China and North China are "drowned out" by rainfall, while many places in the south welcome the "high temperature week" for the new week.
Heavy rainfall in the north "douses out" high temperature days
Since the 6th, due to the arrival of heavy rainfall, the high-temperature "roasting" that lasted for many days in Northeast China and North China finally dispersed.
According to the latest forecast of the Central Meteorological Observatory, this round of rainfall in the north just started on the 6th. From the night of the 6th to the 8th, affected by the high-altitude trough and low-level shear, there were many showers or thunderstorms in the central and southern parts of Inner Mongolia, North China and Northeast China, with heavy rain in some areas and local heavy rain. The maximum hourly precipitation was 20-50 mm, and the local area could reach more than 60 mm.
Sun Jun, chief forecaster of the Central Meteorological Observatory, analyzed that the rainfall lasted for a long time and was mainly divided into two stages. The first stage was from the night of the 5th to the 8th, and the second stage was from August 10th to 12th.
Sun Jun said that the precipitation from the 5th to 8th is mainly concentrated in the eastern part of Liaoning, and there will be heavy rain and local heavy rain. The next round of precipitation will be concentrated on the 11th to 12th, which is also heavy rain and local heavy rain. There may be waterlogging in the local area, but it will not occur on a large scale.
For the rainy weather in Beijing, Sun Jun said that there will still be more rainfall in Beijing in the next few days, and the rainfall will be more obvious on the 7 th. There will be moderate to heavy rain in the central and northern regions, and the local area will be heavy rain. Fangshan, Mentougou, Miyun and other areas should guard against geological disasters in mountainous areas.
In response to this round of heavy rainfall in Northeast China and North China, according to the news of the Emergency Management Department, on the 6th, the National Safety Production Emergency Rescue Command Center issued an early warning on safety production, requiring the safety supervision bureaus in relevant areas and relevant central enterprises to strengthen monitoring, notify relevant production and business units to arrange necessary rescue equipment and materials, and do all kinds of emergency preparations.
Heavy rains followed, and the risk of geological disasters in southwest China was high.
In addition to the rainfall in Northeast China and North China, it is worthy of attention. According to the weather forecast, in the next three days, due to the influence of monsoon, there will be scattered heavy rains in southwest China, South China, Jiangnan and Jianghan, and there will be heavy rains in the local area.
Among them, it is worth noting the rainstorm weather in southwest China.
According to Sun Jun’s introduction, due to the influence of the southwest monsoon, there has been more rainfall in the southwest since the flood season, especially in Sichuan Basin and Yunnan, where there are many rainstorm processes, a wide range of rainstorms and strong local intensity.
"There have been six regional rainstorms since the Sichuan Basin entered the flood season. The precipitation in June was higher than in previous years, and the situation of high precipitation in July was more obvious." Sun Jun said.
According to experts, in June, the average precipitation in Sichuan Province was 184.0 mm, with an average precipitation of 25%, and the precipitation in the west of the basin was more than 200 mm. In July, the average precipitation in the whole province was 301.1 mm, and it was 300 ~ 600 mm in the northwest and southwest of the basin. Compared with the same period of normal years, the precipitation in most parts of Sichuan is 50% to 3 times higher, the highest in the same period of history.
In addition, the rainfall in Yunnan has been continuous since the flood season. From the data point of view, the rainfall is obvious from August 1 to 3, and then it will be affected by the southwest monsoon, and there will be scattered heavy rain.
Sun Jun said that continuous rainfall makes the surface water saturated, and the risks of geological disasters in Yunnan, Sichuan Basin, western Guizhou and southern Chongqing are high, so it is necessary to pay attention to prevent the risks of geological disasters such as landslides and mudslides.
The high temperature warning of the Central Meteorological Observatory lasted for more than three weeks.
Although beginning of autumn is today, as far as most parts of the country are concerned, beginning of autumn in the 24 solar terms has only ushered in nominal autumn.
In meteorology, the autumn begins when the average daily temperature drops below 22℃ for five consecutive days. According to this standard, there are few areas in China where the solar term begins in beginning of autumn, and the weather is still very hot everywhere.
The large-scale high-temperature weather in China since mid-July is still continuing. As of the 6th, the high-temperature warning issued by the Central Meteorological Observatory has been issued for more than three weeks.
During the day on the 6th, high temperature weather of 35 ~ 36℃ occurred in southeastern North China, Huanghuai, Jianghuai, central and eastern Jiangnan, eastern South China, central and southern Shaanxi, eastern Sichuan, Chongqing and northwestern Hubei, and reached 37 ~ 38℃ in central Zhejiang.
At 6 pm on the 6th, the yellow warning of high temperature issued by the Central Meteorological Observatory continued. On the 7th, during the daytime, the highest temperature in Guanzhong area of Shaanxi, most of Zhejiang, northern Fujian, northeastern Jiangxi, southern Xinjiang basin and areas along Tianshan Mountain was 37 ~ 39℃, and the local temperature in Xinjiang could reach above 40℃.
In many places in the south, the next week will still be a "high temperature week". According to the report of China Weather Network, from the city forecast, Hangzhou, Shanghai, Wuhan, Nanjing, Changsha, Nanchang and Hefei will start a continuous high temperature process. During this week, there will be 6-7 high temperature days, and the high temperature in Guangzhou and Fuzhou in South China will also increase. (End)
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