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]

严格来说，北京前期没有冷空气导致的气温下降，因此不算"回南天"，但这种描述形象地说明了北京近 日的潮湿。 缓解潮湿需要一场"下透的雨" 北京市气象局官方微博信息显示，北京自6月26日之后，分散性阵雨、全市范围降雨穿插出现，截至7月 1日，基本上连续5天都有雨水，今天还将有一场明显降雨。 气象专家尹炤寅告诉记者，今年7月上旬，城区、观象台的降雨日数大概率比常年偏多，原因在于近期 西太平洋副热带高压的影响范围延伸，其西北侧的偏南暖湿气流持续控制北京。"水汽比常年同期充 沛，降雨也就增多了。"尹炤寅说。 "北京太闷了，每天出门走到地铁站都汗哒哒的。""我是南方人，这个天气太熟悉了。"近日，北京阴雨 天气频繁，湿度大，有市民表示毛巾、衣物都有馊味了。今天（7月2日），"北京回南天"登上热搜，网 友发布内容显示，北京这两天湿度较大，地铁步行通道的墙壁、地板上凝结出了水珠，很像南方潮湿 的"回南天"。 气象专家尹炤寅告诉记者，这几天的潮湿的确很少见，北京的水汽比常年同期充沛，北京"回南天"短时 缓解需要一场"下透的雨"，将大气中的水蒸气彻底变为雨滴落下；彻底缓解要等夏末，那时候北京将脱 离副热带高压的控制。 北京潮湿堪比 ...