Core Viewpoint - The article provides weather warnings for heavy rain and a tropical storm, emphasizing the need for preparedness and safety measures in affected regions [2][7]. Rainstorm Warning - A yellow warning for heavy rain has been issued, predicting significant rainfall in regions such as southern Guangxi, southeastern Yunnan, southern Guizhou, western and northern Guangdong, southern Hunan, and eastern Hainan Island from September 25, 08:00 to September 26, 08:00 [2][8]. - Some areas, particularly in southwestern Guangxi and southeastern Yunnan, may experience heavy rain with accumulations of 100 to 200 millimeters [2][8]. - Short-term heavy rainfall is expected, with maximum hourly rainfall reaching 30 to 50 millimeters, and localized areas possibly exceeding 60 millimeters [2]. Defense Guidelines for Rainstorm - Government and relevant departments should ensure proper measures are in place for rainstorm defense [4]. - Traffic management should implement control measures based on road conditions during heavy rainfall [4]. - Outdoor operations in open areas should be suspended, and individuals in dangerous zones should be relocated to safe places [5]. - Drainage systems in urban areas, farmland, and fish ponds should be inspected and necessary drainage measures taken [5]. Typhoon Warning - A blue warning for Typhoon "RAGASA" has been issued, which has weakened from a strong tropical storm to a tropical storm as of September 25 [7]. - The storm's center is located approximately 25 kilometers southeast of Beihai, Guangxi, with maximum wind speeds of 9 levels (23 meters per second) and a minimum central pressure of 990 hPa [7][15]. - The storm is expected to move westward at a speed of 15 to 20 kilometers per hour, heading towards the northern coast of Vietnam, where it is predicted to make landfall in the afternoon to evening of September 25 [7]. Defense Guidelines for Typhoon - Government and relevant departments should prepare for emergency response to the typhoon [12]. - Waterborne operations and passing vessels should return to port for safety, and port facilities should be reinforced to prevent accidents [12]. - Outdoor large gatherings and high-altitude operations should be halted, and structures vulnerable to wind should be secured or dismantled [15]. - Residents should remain indoors, especially vulnerable populations like the elderly and children, and be prepared for sudden strong winds [15].

Summary of Key Points Core Viewpoint - The article discusses the recent weather patterns in China, highlighting the ongoing heavy rainfall in certain regions and contrasting temperature trends between the north and south of the country. Group 1: Rainfall and Weather Conditions - Heavy rainfall has been observed in regions such as Hunan, Guizhou, and Yunnan, with local areas experiencing severe downpours [1][2] - The Central Meteorological Observatory predicts continued rainfall in parts of Tibet, Inner Mongolia, Heilongjiang, and other areas, with some regions expecting heavy rain [3][4] - Meteorological experts warn residents in frequently affected areas like Sichuan, Chongqing, and Yunnan to take precautions against potential geological hazards due to the heavy rains [5] Group 2: Temperature Trends - Southern regions, particularly Jiangnan and Huannan, are experiencing persistent high temperatures, with many locations in Zhejiang, Fujian, Jiangxi, and Hunan recording temperatures above 35°C [6] - The northern regions are expected to see a significant drop in temperatures due to active cold air and rainy weather, with many areas experiencing their lowest temperatures in the second half of the year [6]

Group 1 - The city of Guangzhou is expected to experience heavy rain to torrential rain starting from September 7 due to the influence of a tropical system, which will alleviate high temperatures [1][2] - The Guangzhou Flood Control and Drought Relief Headquarters reported that as of September 4, the average rainfall in the city was 1853.5 mm, which is higher than the normal level of 1653.7 mm for the same period but lower than last year's 2307.6 mm [1] - The city has activated emergency responses 46 times this year, including 41 for heavy rain and flooding, 4 for typhoons, and 1 for flood control [1] Group 2 - The upcoming rainfall is expected to cause significant rises in water levels in small and medium rivers, with changes ranging from 1 meter to 3 meters, and some rivers may approach warning levels [2] - The Pearl River Estuary will experience notable storm surge, coinciding with astronomical tides, which may lead to tidal levels exceeding warning thresholds in certain sections of the Pearl River [2] - From September 9 to 10, Guangzhou will see heavy rain to torrential rain, with a transition to mainly overcast weather starting September 11 [2]

Weather Alerts - The Central Meteorological Observatory issued a blue rain alert on August 30, predicting heavy to torrential rain in several regions including eastern Jilin, eastern Liaoning, and southern Shandong from 14:00 on August 30 to 14:00 on August 31, with some areas experiencing rainfall of 100-140 mm [1] - Short-term heavy rainfall is expected, with maximum hourly rainfall reaching 20-50 mm, and localized areas possibly exceeding 70 mm, along with thunderstorms and strong winds [1] Typhoon Information - The Central Meteorological Observatory also issued a blue typhoon alert, announcing that the tropical depression in the South China Sea strengthened into Typhoon "Lanhu" (Nongfa) on August 30, with maximum wind speeds of 8 levels (18 m/s) and a minimum central pressure of 995 hPa [3] - The typhoon is expected to move westward at a speed of 25-30 km/h and is predicted to make landfall in central Vietnam later in the day, gradually weakening thereafter [3] - Wind forecasts indicate that from 14:00 on August 30 to 14:00 on August 31, there will be winds of 6-7 levels in parts of the South China Sea and coastal areas of Guangdong and Hainan, with some areas experiencing winds of 8 levels and gusts of 9-11 levels [3]

Core Viewpoint - The article discusses the ongoing severe weather conditions in various regions of China, including heavy rainfall and strong convective weather warnings issued by the Central Meteorological Observatory. Group 1: Weather Warnings - A yellow rainstorm warning has been issued, predicting heavy to torrential rain in several regions from August 11 to August 12, with specific areas experiencing extreme rainfall of 250 to 280 millimeters [3][5][7] - A blue warning for strong convective weather has also been issued, forecasting wind speeds exceeding 8 levels, with some areas in Inner Mongolia and Hebei experiencing winds above level 10 [5][7] - The main impact period for these severe weather conditions is expected to be from the afternoon to the night of August 11 [8]

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].

山东省气象台于8月1日06时00分继续发布暴雨蓝色预警：预计1日白天到夜间，临沂和枣庄有小到中雨 局部暴雨并伴有雷电，日照、青岛、威海和烟台有雷雨或阵雨局部大雨或暴雨，鲁西北地区天气多云， 其他地区局部有雷雨或阵雨，雷雨地区雷雨时阵风7～9级。未来三天天气预报：1日白天到夜间，临沂 和枣庄天气阴有小到中雨局部暴雨并伴有雷电，日照、青岛、威海和烟台天气阴有雷雨或阵雨局部大雨 或暴雨，鲁西北地区天气多云，其他地区天气多云间阴局部有雷雨或阵雨。潍坊、临沂、日照和半岛地 区偏东风3～4级，其他地区北风3～4级，雷雨地区雷雨时阵风7～9级。 夜间最低气温：鲁中山区24℃左右，其他地区26℃左右。 最高气温：菏泽、德州和聊城34℃左右，枣庄、临沂、日照、鲁中山区和半岛地区30℃左右，其他地区 32℃左右。2日白天到夜间，枣庄、临沂、日照和半岛地区天气阴有雷雨或阵雨局部大雨，菏泽和鲁西 北地区天气多云，其他地区天气多云间阴局部有雷雨或阵雨。日照和半岛地区南风转北风4级阵风5～6 级，其他地区东北风3～4级，雷雨地区雷雨时阵风7～9级。 夜间最低气温：鲁中山区23℃左右，其他地区26℃左右。 最高气温：菏泽、德州和聊城35℃ ...

齐鲁晚报·齐鲁壹点记者 于民星 7月30日夜间开始，山东受今年第8号台风"竹节草"影响出现风雨天气。31日，山东省气象台继续发布了 台风蓝色、暴雨蓝色预警和海上大风黄色预警。 省气象台数据显示，7月31日06时至31日16时，全省共有7市、3)、443乡镇出现降水，平均降水量1.2毫 米，折合水量约1.9亿方。站点降水量前3位的是：临沂河东区临沂水文站 44.5毫米、日照东港区石臼所 39.5毫米和日照气象局39.2毫米。 16时，山东省气象台继续发布台风蓝色和暴雨蓝色预警：31日15时，台风"竹节草"中心位于江苏省南京 市，中心最大风力8级（18米/秒，热带风暴级），中心最低气压990百帕。预计"竹节草"将以每小时10 公里左右的速度向偏西方向缓慢移动，强度缓慢减弱。受其影响，预计7月31日傍晚到8月1日，枣庄、 临沂、日照、潍坊、青岛、烟台和威海有中到大雨局部暴雨或大暴雨（20～40毫米局部100毫米以 上），淄博、济南、泰安和济宁有小到中雨局部大雨或暴雨（5～15毫米局部50毫米以上），其他地区 局部有雷雨或阵雨。部分地区伴有短时强降水、雷电和7～9级雷雨阵风，最大1小时降水量30～50毫 米。 同一时 ...

因此，大家务必要高度重视暴雨预警信息，当高级别的预警发布，特别是红色预警意味着极高的风险，请一定尽量避免前往山区 河道等危险地带，远离城市的低洼易积水路段，确保自身安全。科学认识雨强理解预警信号是在极端天气下保护自己的第一步。 这次北京的暴雨有多极端？房山前石门站小时雨量达到了惊人的68.5毫米。气象学意义上小时雨量超过60毫米，就已经属于极端 强降水事件。这次强降雨过程中，北京及周边地区共有13个气象站点刷新了历史极值记录，强度之大倾盆甚至瓢泼都不足以形容。 如何去理解雨强这个概念？比如某地一小时下了70毫米的雨，相当于在每平方米的地面上瞬间倾倒了整整70升的水，大概只需要 5分钟就可以把一个普通的家用浴缸给填满。在这样的雨强之下，城市低洼路段积水会以肉眼可见的速度迅速上涨，几分钟之内可能 没过小腿甚至膝盖，在山区则极易引发山洪和地质灾害。 央视网消息：最近，京津冀等地遭遇了极端暴雨，气象部门频频发布高级别预警。下面我们就来了解一下，不同的预警级别所代 表的雨到底有多大。 中国气象局气象探测中心高级工程师周青：什么是雨强？简单说就是单位时间内下了多少雨。比如1小时或者10分钟之内的降雨 量，反映雨下得有多猛 ...

Core Viewpoint - Multiple weather warnings have been issued by the Central Meteorological Observatory, including orange alerts for heavy rain, yellow alerts for strong winds, and yellow alerts for typhoons, indicating severe weather conditions across various regions in China [1]. Group 1: Heavy Rain Alerts - From 08:00 on July 30 to 08:00 on July 31, areas including southern Jiangsu, Shanghai, northern Zhejiang, eastern Anhui, southern Guangdong, central Guangxi, southern Yunnan, Taiwan Island, eastern Heilongjiang, and northeastern Liaoning are expected to experience heavy to torrential rain, with some regions facing extreme rainfall (250-320 mm) [2][10]. - Specific areas such as southeastern Jiangsu, northern Shanghai, northern Zhejiang, and southern Taiwan may see localized extreme rainfall, with hourly precipitation potentially exceeding 70 mm [2]. Group 2: Strong Wind Alerts - From 08:00 on July 30 to 08:00 on July 31, regions including western and northeastern Inner Mongolia, eastern Xinjiang, northern and western Qinghai, Gansu's Hexi Corridor, Shanghai, northern Zhejiang, and southern Jiangsu are forecasted to experience winds of 5-6 levels, with gusts reaching 7 levels [4]. - In certain areas like Shanghai, northern Zhejiang, and southern Jiangsu, wind speeds may reach levels 7-8, with gusts of 9-10 levels [4]. Group 3: Typhoon Alerts - The 8th typhoon of the year, "Zhu Jie Cao," made landfall in Zhoushan, Zhejiang, with maximum wind speeds of 9 levels (23 m/s) and a minimum central pressure of 975 hPa [6]. - The typhoon is expected to move northwest at a speed of 10-15 km/h, potentially strengthening before making a second landfall between Ningbo, Zhejiang, and Qidong, Jiangsu, with wind speeds of 9-10 levels [8].