China News Service, Beijing, August 1st. According to weather forecasts, a new round of large-scale precipitation is affecting many places. High-temperature weather is also developing again in the south of the Yangtze River. With high humidity and high temperature, many areas in the central and eastern regions are experiencing "saunas". day". In addition, the South China Sea tropical depression has been formed and its intensity will increase, and it may develop into the third typhoon this year.
Data map: On July 30th, Hunan's continued high temperature, people go upstream and splash water to escape the heat. Photo by Yang Huafeng
Jiangnan high temperature and then expand the central and eastern regions will experience "sauna days"
The slightly diminished high temperature weather in the previous two days is about to make a comeback again. The high temperature weather in the south of the Yangtze River is developing again, and the central and eastern regions will also encounter a wide range of "sauna days."
The Central Meteorological Observatory predicts that in the next three days, high temperatures above 35°C will occur in the western and northern parts of South China, most of Jiangnan, Jianghuai, and Jianghan, with the highest temperature reaching 37-39°C in some areas.
Even in the longer-term mid-term weather, this high temperature situation has not weakened. In the next 10 days, there will be 4-8 days of high temperature weather in Jiangnan, South China, eastern Sichuan Basin and Xinjiang. The highest temperature is generally 35-37℃, and some areas can reach 38-41℃.
It can be seen that compared with the small-scale high temperature in the previous two days, the high temperature range in the Jiangnan region has expanded. Provincial capital cities, such as Changsha and Nanchang, will be continuously "controlled" by high temperature weather in the next few days. For South China, after entering August, the tropical system is active and wind and rain are becoming more frequent, and the high temperature range will be reduced.
In the north, north China, and Huanghuai area, in the next three days, due to high humidity caused by low-altitude southerly winds, the sultry feeling will become obvious. Among the cities, Beijing, Shijiazhuang and Taiyuan, the highest temperature is above 30 ℃, there are also thunderstorms from time to time, the feeling of heat and humidity will not lose to the southern cities.
At 14:00 on July 27, the flow of the Three Gorges into the reservoir reached 60,000 cubic meters per second. (Data Map) Photo by Zhou Xingliang
Rainwater is scattered from north to south in August
Since the flood season, the rain has not stopped. Although the main rain belt has moved the main position to the north, judging from the distribution of the new round of large-scale precipitation, both the north and the south are involved.
The Central Meteorological Observatory predicts that in the next three days, there will be heavy showers or thunderstorms in North China, Northeast China, Huanghuai and other places, uneven distribution of precipitation, heavy rain or heavy rain in local areas; heavy rainfall in Sichuan, Yunnan, Tibet and other places, Sichuan Basin, western Yunnan There were moderate to heavy rains in the south and the South China Sea. Affected by the tropical depression and monsoon in the South China Sea, there were heavy rains or torrential rains in parts of southern Guangdong, southern Guangxi, Hainan Island, and local heavy rains.
Since the northern part of the country entered the main flood season, rainfall has become more frequent and the rainfall has also been much larger. For example, in Beijing, strong convective weather occurred on July 31, accompanied by short-term strong winds and hail of level 6 or above.
In the south, although the main rain belt has moved northward, the flood prevention situation in the south still needs to be highly vigilant. According to the consultation and deployment of August flood prevention work by the Ministry of Water Resources on July 30, it is expected that another numbered flood may occur in the upper reaches of the Yangtze River in August.
On the 31st, the Ministry of Emergency Management also issued a national comprehensive risk warning reminder for natural disasters. Due to heavy rainfall in Sichuan, Yunnan, Tibet and other places, it is necessary to prevent the inflow of water from the upper reaches of the Yangtze River from bringing backwater to the middle and lower reaches of Anhui, Jiangxi, Hubei, Hunan and other regions. The adverse effects.
The formation of tropical depression in the South China Sea caused the suspension of navigation across the Qiongzhou Strait. The picture shows passengers crossing the sea boarding in the rain. Photo by Luo Yunfei
The South China Sea tropical depression may develop into the third typhoon this year
Until the end of July, there were no typhoons in the Northwest Pacific and South China Sea. According to the Central Meteorological Observatory, this was the only "empty station" in July since 1949.
According to the forecast by the Meteorological Department, the tropical depression in the South China Sea was formed at 14:00 on July 31, and it is expected to make landfall or pass over the southern coast of Hainan Island around noon on August 1. Due to the large area of the cloud cluster and the relatively loose structure, the impact of wind and rain is relatively large. There have been obvious wind and rain in southern Guangdong and northern South China Sea. The Qiongzhou Strait route has been suspended.
Xiang Chunyi, a senior engineer at the Typhoon and Marine Meteorological Center of the China Meteorological Administration, said that after the tropical system enters the Beibu Gulf, its intensity will increase as the cloud structure improves, and it may develop into the third typhoon this year.
The Emergency Management Department has issued an early warning for this, and the typhoon has entered an active period. The water level of the mainstream of the Huaihe River and Lake Tai is still high. We must seize the opportunity to do a good job of drainage, and strive to reduce the water level of the mainstream of the Huai River, Hongze Lake, Taihu Lake and the surrounding river network. Make every effort to avoid the unfavorable situation of typhoon and heavy rainfall under high water level.
If there is no typhoon in July, will the typhoon in August be more active? Statistics show that August is the month with the most frequent typhoon activity, with an average of 5.7 typhoons generated in history, of which 1960 and 1966 (10) were the most generated.
Xiang Chunyi analyzed that according to the medium-term forecast, the typhoon will not enter the active period immediately in early August. It is expected that in mid-August, with the adjustment of the atmospheric circulation, a tropical cyclone may be generated. The active period of the typhoon. (Finish)