Summary of Key Points Core Viewpoint - The article discusses the weather conditions in Shanghai, highlighting the transition from typhoon effects to high temperatures, with forecasts indicating continued high temperatures and potential thunderstorms in the coming days [1]. Weather Forecast - Shanghai is expected to experience temperatures around 35°C from today until Wednesday, with afternoon short-term rain or thunderstorms [1]. - The highest temperature today is forecasted to reach 35°C, with northern areas experiencing notable short-term precipitation [1]. Weather Dynamics - The first half of the week will see high temperatures in Shanghai, which will accelerate water vapor evaporation, leading to cloud formation and energy release, thus enhancing the potential for thunderstorms and heavy rain [1]. - In the latter half of the week, Shanghai will be positioned at the edge of the subtropical high pressure, making it susceptible to triggering or intensifying precipitation [1].

Group 1 - The weather in China is currently complex, with both high temperatures and heavy rainfall expected to persist in various regions [1][2] - From August 2 to 6, northern regions will experience significant rainfall, with localized areas receiving 100 to 150 millimeters of rain [1] - Southern regions, particularly in Guangdong, Guangxi, and southern Guizhou, are forecasted to face heavy rainfall, including possible extreme downpours [2] Group 2 - The high temperatures are expected to affect areas such as southern North China, Huanghuai, Jianghan, and parts of Sichuan and Shaanxi, with temperatures reaching 35°C to 38°C, and some areas exceeding 40°C [2][3] - The agricultural sector is warned about the high-temperature risks affecting rice crops, with recommendations for temperature regulation and fertilization to mitigate impacts [3] - The high temperatures pose risks to transportation and public health, with road surface temperatures potentially reaching 62°C to 74°C in certain regions, necessitating caution for drivers [3]

自7月23日以来，北方多地持续遭受强降水影响，内蒙古、河北北部、北京及太行山前区域成为强 降水核心区。"高温和强降雨多发、分散、影响范围大是近期全国天气形势的特点。"中央气象台首席预 报员张涛介绍，目前，一条西南至东北向雨带稳定维持在华北北部和东北中南部，给内蒙古东南部、河 北北部、北京、辽宁、吉林等地带来集中降雨。雨带目前正缓慢向南压且强度减弱，上述地区降雨强度 也将明显减弱。 截至7月26日，我国北方共有19个站点打破同期历史月极值，其中13个站点刷新历史极值。在此轮 降水过程期间，陕西北部、内蒙古、河北北部、北京等地累计降水量普遍超过100毫米，石家庄北部、 保定西部等区域累计降水量突破400毫米，充分展现此次过程的极端性。 近期，我国天气形势复杂多变，华北地区遭遇连续强降雨天气。目前正值"七下八上"防汛关键期， 全国呈现强降雨与大范围高温天气并存的典型汛期格局。本轮华北降水总体情况如何？未来发展趋势怎 样？公众又该如何有效防范？记者就此采访了相关专家。 未来三天，多雨、大范围高温仍是华北天气主要发展趋势。张涛表示，北方地区将会有两次降雨天 气过程，一是目前华北北部到东北中南部的雨带维持带来叠加降雨；二 ...

周二（7月29日），"复活"后的8号台风"竹节草"逐渐逼近，虽然整体步伐有些缓慢，但是风雨影响 已经抢先"报到"。浙江东部等地率先迎来强降雨，并向全省蔓延，浙江省防指、杭州市防指纷纷将防台 风应急响应提升至Ⅲ级。周三是风雨核心影响时段，"竹节草"即将登陆华东，强风暴雨袭来，威力不容 小觑。 "竹节草"路径北调 周三风雨影响大 台风过后副高增强 高温回归 中央气象台周二18时继续发布台风蓝色预警，今年第8号台风"竹节草"（热带风暴级）的中心周二 17时位于浙江省舟山市东南方向大约230公里的东海南部海面上，中心附近最大风力有8级（20米/ 秒）。 预计，"竹节草"将以每小时10-15公里的速度向北偏西方向移动，强度将有所增强，将于周三白天 在浙江三门到江苏启东一带沿海登陆（23-28米/秒，9-10级，热带风暴级或强热带风暴级），登陆后强 度缓慢减弱,也有可能沿华东近海北上。 从预报来看，台风"竹节草"的走位较此前稍有"北移"，为什么会有这样的调整？其实，这都是因为 天气舞台上多个天气系统在"较劲"。杭州市气象台解释，影响台风"竹节草"的主要因素是在太平洋上的 副热带高压。目前，这个副热带高压"三面受敌"，西北 ...

新华社北京7月29日电 连日来，北京遭遇连续极端强降雨，造成重大灾害。此次降雨有哪些特点？降雨是如何形成的？后续还有哪些需要注意的 情况？专家与相关部门为您一一解读。 降雨有何特点？ 降雨如何形成？ 漫长降雨如何形成？从宏观上看，西太平洋副热带高压是影响我国天气的关键系统，其季节性活动直接关系各地雨季进程。中国气象服务协会会 长许小峰介绍，从整体情况来看，目前正值"七下八上"防汛关键期，副热带高压稳定影响到华北地区，北京已进入强对流天气多发的多雨水时 段。 具体而言，近期北京降雨可分为两个时期。记者梳理北京市气象部门发布的信息，24日至27日期间的降雨，系受副热带高压影响产生。许小峰介 绍，这一时期北方恰有弱冷空气不断南下，与副热带高压边缘暖湿气流交汇，形成降雨带，也就是典型的华北雨季形势。而28日夜间至29日上午 的降雨则是因为受高空槽及台风外围水汽远距离输送影响产生，自西向东给北京带来了相对均匀的大面积降雨。 7月27日在北京市密云区冯家峪镇西庄子村拍摄的河道。新华社记者 鞠焕宗 摄 接下来如何防范？ 气象部门介绍，29日14时30分许，影响北京市的强降雨云团已移出。北京市气象台7月29日14时30分解除 ...

Group 1 - Beijing experienced heavy rainfall, with an average precipitation of 56.5 mm across the city from July 28, 20:00 to July 29, 07:00, and the maximum recorded at 184.2 mm in Fangshan Shilou [1] - Cumulative rainfall in Beijing from January 1 to July 29 reached 527.4 mm, which is 66.8% more than the average of 316.1 mm for the same period, and 68.4% more than last year's 313.2 mm [1] - Since the onset of the flood season on June 1, total rainfall has been 420.8 mm, exceeding the average of 240.7 mm by 74.8% and last year's 228.2 mm by 84.4% [1] Group 2 - The recent heavy rainfall in Beijing is attributed to an unusually northward and stable subtropical high-pressure system, which has led to frequent rain since July 24 [2] - A weather system known as the westerly trough influenced Beijing on the night of July 28, resulting in widespread rainfall across the city [2] Group 3 - Meteorological authorities have issued a yellow rainstorm warning, advising against driving through flooded areas and staying away from regions prone to geological disasters [3]

Core Viewpoint - The recent heavy rainfall in northern China, particularly in Beijing and Hebei, is attributed to abnormal atmospheric circulation patterns, with the subtropical high pressure system playing a significant role in the early onset of the rainy season [1][3]. Group 1: Weather Patterns and Impacts - The subtropical high pressure has shifted northward, leading to an influx of warm, moist air into northern China, which has resulted in extreme rainfall events [1][2]. - The average rainfall in the North China region has reached 121 mm, which is nearly 30% higher than the historical average for the same period [2]. - The rainy season in North China began on July 5, 13 days earlier than the historical average, marking the earliest start since 1961 [2][3]. Group 2: Typhoon Influence - Typhoon "Zhu Jie Cao" has been reclassified and is expected to impact eastern China significantly, with strong winds and heavy rainfall predicted in several regions [4]. - The typhoon indirectly affects the rainfall patterns in northern China by altering the atmospheric circulation, which influences the subtropical high pressure's position and intensity [4]. Group 3: Future Weather Forecast - A strong rainfall event is anticipated in northern China, with warnings issued for potential mountain floods and geological disasters due to cumulative rainfall effects [5]. - The overall precipitation trend is expected to weaken, but localized heavy rainfall may still occur [5].

Group 1 - The recent heavy rainfall in northern China has been influenced by a combination of factors, including stable subtropical high pressure, prolonged convective activity, and orographic lifting from the Yanshan and Taihang mountains [2][4] - Specific areas such as Yixian in Hebei and Miyun in Beijing have experienced localized rainfall exceeding 400 to 500 millimeters, approaching their annual average precipitation [2] - The current heavy rainfall event is expected to gradually diminish by the 30th, as the subtropical high pressure retreats southward and moisture transport decreases [4] Group 2 - Typhoon "Zhu Jie Cao" is expected to impact the eastern China region, with forecasts indicating it may make landfall on the 30th, bringing significant rainfall to areas like southern Jiangsu, Shanghai, and eastern Zhejiang [5][7] - The typhoon's trajectory suggests it will slow down as it moves inland, necessitating close monitoring of its potential for sustained rainfall in the eastern regions [7] - The weather patterns indicate a shift from northern heavy rainfall to increased precipitation in the eastern coastal areas due to the typhoon's influence [5]

Core Viewpoint - The article discusses the impact of Typhoon "Zhu Jie Cao" on Beijing's rainfall, highlighting the indirect influence of the typhoon through moisture transport, leading to significant rainfall events in the region [2][3]. Group 1: Typhoon Influence - Typhoon "Zhu Jie Cao" has indirectly affected Beijing's rainfall by enhancing moisture conditions, although the primary influence comes from a high-altitude trough [2]. - The typhoon, which weakened on the 26th but regained strength, contributes to the moisture supply that enhances rainfall predictions for Beijing [2][3]. Group 2: Rainfall Predictions - Without the influence of the typhoon's moisture, the rainfall in Beijing would likely be less intense, but the current predictions indicate heavier rainfall due to the added moisture from the typhoon [3]. - Rainfall is expected to taper off after the daytime of the 29th, with a brief period of reduced precipitation before another significant rainfall event around August 3rd [4]. Group 3: Rainfall Characteristics - The rainfall distribution in Beijing is uneven, with some areas experiencing heavy rainfall while others remain dry, attributed to different weather systems affecting the region [4][6]. - The rainfall on the night of the 28th is characterized as a systematic and predictable weather event, although there are challenges in forecasting due to the influence of cold air and local topography [7].

Group 1 - The article discusses the extreme convective weather that occurred in Beijing's Miyun, Huairou, and Yanqing districts due to the influence of warm and humid airflow from the edge of the subtropical high-pressure system [1] - Meteorological experts indicate that Beijing has entered the main flood season, with a significant increase in the probability of heavy rainfall events during this period [1] - The article emphasizes the need for public awareness and preparedness for potential geological disasters such as flash floods and landslides due to frequent rainfall in the coming days [1] Group 2 - The Beijing Center for Disease Control and Prevention advises the public to pay attention to drinking and food hygiene during the rainy season, recommending against using rainwater for washing fruits and utensils [2] - It is suggested that individuals should wash any skin areas that come into contact with rainwater promptly to prevent skin diseases [2]