BEIJING, Beijing, July 27 (Zhang Ni) Recently, the region including the middle and lower reaches of the Yangtze River and most of the south of the Yangtze River experienced the strongest high temperature this year, and the Central Meteorological Observatory continued to sound the orange warning of high temperature. Shanghai, Hubei, Chongqing and other places have recently sounded the first high-temperature red warning this summer. In addition, the power grid load in some areas of Jiangsu and Anhui has hit record highs, and the high-temperature "barbecue" mode has been opened in many places across the country.
The high temperature warning continues to sound that the somatosensory temperature in some areas exceeds 50 C.
At 18: 00 on the 26th, the Central Meteorological Observatory continued to issue a high-temperature orange warning. It is estimated that there will be high temperature of 35 ~ 39℃ in northern South China, Jiangnan, Jianghuai, Jianghan, southern Huanghuai, southern North China, eastern Sichuan Basin, Chongqing, northern and eastern Guizhou, Xinjiang, northwestern Gansu and western Inner Mongolia during the day on the 27th.
Among them, the highest temperature in parts of central and northern Zhejiang, eastern Anhui, southern Jiangsu, northeastern and western Jiangxi, southeastern and western Hubei, eastern and northwestern Hunan, and Chongqing can reach 40 ~ 41℃.
According to China Weather Network, since late July, the strongest high temperature weather has appeared in the middle and lower reaches of the Yangtze River and most parts of the south of the Yangtze River this year, and the somatosensory temperature in some areas is as high as 50℃.
On the 25th, the range and intensity of high temperature reached its peak, with high temperature of 35℃ or above prevailing in Jianghuai, south-central Jianghan, south of the Yangtze River, south of China and northeast of southwest China, with the highest temperature of 40℃ or above in some areas of northwest Hubei, central Hunan and western Zhejiang.
Shanghai, Hubei, Chongqing and other places have recently sounded the first high-temperature red warning this summer and entered the "barbecue" mode. As of the 24th, the area affected by high temperature affected about 700 million people.
Why does the hot weather continue to flourish?
Why is this round of hot weather so strong? Ma Xuekuan, chief forecaster of the Central Meteorological Observatory, told the media that this round of high temperature weather is due to the subtropical high stretching westward and lifting northward, and the gradually increasing subtropical high will continue to control the southern region.
The place controlled by subtropical high will mainly be sunny and hot with little rain, and the ground temperature will gradually rise due to the influence of solar short-wave radiation during the day. At the same time, downward flow is also prevalent in the high-pressure control area, forming a certain sinking and warming effect. Under the combined action of radiation warming and subsidence warming, high temperature weather will occur.
Ma Xuekuan said that at present, this hot weather process will continue, and the hot weather in northern South China, Jiangnan, Jianghan, Jianghuai, Chongqing and other places will run through to the end of July, and the temperature in some areas will reach 39-41 C.
In some areas, the electricity load is record-breaking, and the power supply is tight.
The continuous high temperature weather has caused the power grid load in many areas to break records.
On the 24th, the maximum load of Hefei Power Grid in Anhui Province reached 5,171,400 kilowatts, a record high this year. On the 25th, the power grid load continued to climb to 5.532 million kilowatts, breaking the historical record for two consecutive days.
At present, Hefei Power Supply Company has started the emergency plan for power grid operation and emergency command, eliminated hidden dangers, increased the strength of emergency repair personnel, strengthened the 24-hour emergency duty system and responded quickly.
In Jiangsu, at 13: 10 on the 25th, the largest dispatching power load in the province exceeded 90 million kilowatts, reaching 92.38 million kilowatts, a record high. Among the 13 cities in Jiangsu province, except Lianyungang, the electricity load of the other 12 cities has reached a record high.
From 23rd to 25th in Shandong Province, the highest load of the whole power grid hit a record high for three consecutive days, reaching 68.386 million kilowatts on 25th. Relevant departments have organized and started orderly electricity consumption measures, and some high-energy-consuming industries have been "restricted".
High-temperature workers who have died of heatstroke in many places should be vigilant.
The hot weather not only makes the power grid unbearable, but also affects people’s health. Recently, the news of death caused by high temperature weather has been exposed one after another, which makes people really sweat.
According to incomplete statistics, as of noon on the 25th, Jiangsu has reported more than 120 cases of heatstroke and nearly 20 cases of critical illness. Among them, the most is Nanjing, with more than 70 cases, only one case is severe; Zhenjiang has the largest number of critical cases, reaching 11 cases; In addition, Suzhou, Yancheng, Nantong, etc. have reported critical or dying cases. Death due to heatstroke, except Zhenjiang, Yancheng and Zhangjiagang each have one case.
In addition, there are also cases of death from heat stroke in Anhui and Shanghai.
Wang Junyu, deputy chief physician of the emergency department of Beijing Chaoyang Hospital affiliated to Capital Medical University, said in an interview with Zhongxin. com (WeChat WeChat official account: cns2012) that heat stroke is actually a severe heatstroke, which is a serious clinical syndrome that the core temperature of the human body rises rapidly due to exposure to high temperature and high humidity, exceeding 40℃, accompanied by skin burning, disturbance of consciousness and other multiple organ system injuries.
The incidence of heatstroke is closely related to three environmental factors, namely, high temperature, high humidity and windless environment. Therefore, workers exposed to high temperature for a long time are prone to heat stroke.
"Once the symptoms of heatstroke appear, we must first move the patient to a cool place, strengthen air circulation, and let the patient replenish water in time to relieve the symptoms. Once the patient has symptoms such as unconsciousness and convulsions, he must be sent to the doctor in time and cannot handle it himself, so as not to delay the illness. " Wang Junyu stressed.
The reporter learned that in addition to heat stroke, the incidence of cardiovascular and cerebrovascular diseases and respiratory diseases caused by high temperature has also shown an upward trend recently.
Wang Junyu told reporters that taking his department as an example, the number of patients with the above diseases has increased by about 10% to 20% in the past week, mainly middle-aged and elderly people.
Tips for heatstroke prevention and cooling: Pay more water in hot weather and avoid being greedy.
The "high-temperature barbecue" mode has been opened in many places. What measures should ordinary people take in their daily travel?
In this regard, Wang Junyu suggested that, first of all, citizens should try to reduce going out, especially at noon. When going out, it is best to prepare for heatstroke prevention and cooling.
In addition, people, especially middle-aged and elderly people with cardiovascular diseases, must replenish water in time, drink more boiled water every day, and supplement light salt water when sweating a lot.
"In hot weather, if the elderly don’t replenish enough water, it will easily lead to blood concentration, which will induce myocardial infarction and cerebral infarction. In addition, in hot weather, the air circulation is not smooth, and patients with respiratory diseases are more prone to illness. Therefore, these people should be extra careful. " Wang Junyu said.
However, he also reminded that it is forbidden to be greedy in hot weather, because drinking too much cold drinks will aggravate the stimulation of the intestines and damage human health. (End)