Core Viewpoint - The upcoming summer heat during the Sanfu period is expected to be intense, with predictions of extreme weather events, including both droughts and floods, particularly in eastern China [2][4]. Group 1: Weather Predictions - The National Climate Center forecasts an increase in extreme weather events during this period, with a notable distribution pattern of rainfall being more abundant in the north and less in the middle regions [2]. - Jiangsu Provincial Climate Center predicts that the Sanfu period will be characterized by high temperatures, with the onset of high heat becoming increasingly delayed into late summer [2][4]. Group 2: Causes of Early Heat - The early onset of high temperatures this year is attributed to an abnormal northward shift of the Western Pacific Subtropical High and an early end to the plum rain season, leading to hot and dry conditions in the Jianghuai region [3]. - The current high temperatures are expected to rebound after the influence of Typhoon Danas subsides, particularly in the Jianghuai area [3]. Group 3: Long-term Trends - Over the past decade, there has been a significant increase in the frequency and intensity of high-temperature days in China, with a trend of earlier starts and later ends to the high-temperature season [4]. - The Long Triangle region has seen record-breaking summer heat since 2010, with a notable increase in the number of high-temperature days [4]. Group 4: Public Safety Measures - The China Meteorological Administration emphasizes the importance of monitoring local weather forecasts, especially for vulnerable populations such as the elderly, children, and those with chronic illnesses [5]. - It is advised to arrange work schedules to avoid high-temperature periods and implement effective heat prevention measures in various industries [5].

Group 1 - The core viewpoint of the articles highlights the upcoming extreme high-temperature weather in Henan Province, with temperatures expected to exceed 37°C from July 13 to 20, peaking between July 14 and 16, where some areas may reach above 40°C and even 42°C [1] - The prolonged high temperatures are attributed to the control of the region by the Western Pacific subtropical high, leading to clear skies and significant solar radiation, as well as the presence of descending air currents causing warming effects [1] - The high-temperature weather poses health risks, increasing the likelihood of heatstroke and acute episodes of chronic diseases, prompting recommendations for the public to avoid outdoor activities during peak heat times [1] Group 2 - Current high temperatures are impacting autumn crops primarily through soil moisture loss and crop growth, with most surface soil conditions being suitable, although some areas are experiencing moisture deficits [2] - The suitable soil conditions may mitigate the effects of high temperatures on crops in their seedling stage, while areas with moisture deficits may experience leaf scorching due to excessive heat [2]

Group 1 - The recent high-temperature weather in Henan has been severe, with temperatures exceeding 37°C across most of the province, and some areas reaching as high as 43°C [1] - The primary cause of this heatwave is the prolonged control of the western Pacific subtropical high, leading to strong solar radiation and minimal cloud cover [1] - Rainfall began on August 8, providing some relief from the heat, but high temperatures are expected to return starting August 12 as the subtropical high re-establishes itself [2] Group 2 - The current humid and hot weather in northern China is linked to the northward movement of the western Pacific subtropical high, which is expected to persist for some time [3] - Although recent rainfall in regions like Hebei and Tianjin has temporarily reduced humidity, the ongoing influence of warm and moist air from the southwest will replenish moisture levels quickly [3] - High humidity combined with high temperatures can impair the body's ability to regulate temperature, increasing the risk of heat-related illnesses, particularly for vulnerable populations [3]

Core Viewpoint - Beijing has been experiencing high humidity and heat, leading to discomfort among residents, attributed to the early northward movement of the subtropical high-pressure system [1] Weather Impact - The subtropical high-pressure system in the western Pacific is crucial for influencing weather patterns in China, with its seasonal activity directly affecting the rainy season across various regions [1] - This year, the subtropical high-pressure system moved north earlier than usual, resulting in increased humidity and the onset of "sauna days" in Beijing [1] Future Weather Outlook - The high-temperature and humid weather in Beijing is expected to continue for at least another week due to the ongoing influence of the subtropical high-pressure system [1] - Short-duration, sudden rainfall events are likely to occur in the afternoons or evenings, necessitating precautions for outdoor activities [1] Public Health Advisory - The meteorological department advises the public to take measures against heat-related illnesses, as high humidity and heat can increase the risk of heatstroke and cardiovascular issues [1] - Recommendations include maintaining a regular sleep schedule, engaging in outdoor activities during cooler morning hours, and ensuring adequate hydration and a light diet [2]

Core Viewpoint - Beijing is experiencing unusual humidity levels comparable to southern regions, leading to discomfort among residents due to high temperatures and moisture in the air [1][2][4]. Weather Conditions - Recent weather in Beijing has shown humidity levels exceeding 70%, with temperatures around 30°C, resulting in a perceived temperature of approximately 35°C [2]. - The current weather pattern is influenced by warm and humid air from the subtropical high-pressure system, causing conditions similar to the typical summer heat experienced in late July to early August [2][4]. Humidity Analysis - The minimum relative humidity in certain districts of Beijing has approached 60%, significantly higher than the historical average of 12.6% for early July [2][4]. - The ongoing high humidity is attributed to the persistent influence of warm, moist air from the western Pacific subtropical high-pressure system, which has led to increased rainfall in the region [4]. Rainfall and Relief - Since June 26, Beijing has experienced continuous rainfall, with forecasts indicating further significant rain, which is necessary to alleviate the current humidity levels [4]. - Meteorological experts suggest that a substantial rain event is required to convert atmospheric moisture into precipitation, providing temporary relief from the high humidity [4].