Core Viewpoint - A significant rainfall event is expected to impact multiple provinces in southern China, with the potential for severe weather conditions and secondary disasters due to the heavy rainfall [1][3][7]. Summary by Relevant Sections Rainfall Impact Areas - The core impact areas for the upcoming rainfall include nine provinces: Sichuan, Chongqing, Hubei, Hunan, Henan, Jiangsu, Anhui, Guizhou, and Guangxi [3][4]. - Rainfall is expected to be concentrated in regions such as southern Shaanxi, eastern Sichuan, western Hubei, and southeastern Henan, with potential for heavy rain from June 19 to 21 [3][6]. Rainfall Intensity and Duration - The rainfall process is characterized by a long duration and significant cumulative rainfall, with some areas receiving over 100 millimeters, and localized regions potentially reaching 200 to 300 millimeters [3][6]. - Compared to historical averages, the intensity of this rainfall event is expected to be stronger due to the influence of a strong subtropical high and cold air masses [4][6]. Weather Patterns and Causes - The formation of this rainfall is attributed to the interaction of warm and cold air masses, leading to sustained heavy rainfall across the Yangtze River basin [4][6]. - The subtropical high is expected to shift northward, facilitating the movement of warm, moist air into the affected regions [4][6]. Secondary Disaster Risks - There is a heightened risk of secondary disasters such as flash floods and geological hazards in areas with significant rainfall accumulation, particularly in eastern Guangxi, northern Hubei, and southwestern Hunan [7][9]. - The rainfall is also expected to alleviate drought conditions in several regions, including the Sichuan basin and parts of Henan, while still posing risks of rapid transitions from drought to flooding [7][9].

Group 1 - The rainy season in Zhejiang has seen a significant amount of rainfall, leading to high water levels in reservoirs and river networks, prompting the provincial water resources department to end the level IV emergency response for water and drought disaster prevention [2][3] - The upcoming weather forecast indicates a transition to a hot and dry pattern, with temperatures expected to rise sharply to between 35-37°C starting next week [2][3] - Typhoon "Butterfly" is approaching, expected to bring strong rainfall to the region, particularly affecting areas in southern China, with potential impacts on Zhejiang as the remnants of the typhoon move northeast [4][5][6] Group 2 - The current water levels in the Four Ridge Reservoir have reached a record high of 69.69 meters, exceeding the flood limit, leading to the initiation of controlled water discharge to manage reservoir capacity [3] - The typhoon's slow movement and the influx of monsoon winds may enhance rainfall intensity, with forecasts suggesting the possibility of heavy rain in northern Guangdong, Jiangxi, and Zhejiang [5][6] - Local water management authorities are advised to remain vigilant for potential flooding risks due to the expected heavy rainfall from the typhoon remnants [6]

Group 1 - The first typhoon of the year, "Butterfly," has formed in the South China Sea and is expected to make landfall in Hainan on Friday, bringing significant rainfall and strong winds [2][3] - "Butterfly" is predicted to strengthen to a strong tropical storm level (10-11 scale, 25-30 m/s) as it approaches the southern coast of Hainan [2] - After making landfall, "Butterfly" will move northeast, potentially affecting regions such as Jiangxi, Fujian, and Zhejiang with heavy rainfall due to the interaction of warm and cold air masses [2][3] Group 2 - The impact of "Butterfly" on Zhejiang is currently minimal, but the province may experience rain or thunderstorms due to the typhoon's outer cloud systems [3] - In Hangzhou, while the center of "Butterfly" will not directly affect the city, the peripheral effects could still lead to significant weather changes, necessitating close monitoring [3]

据悉，琼州海峡航线将于6月12日11时起停运。预计停运时间持续到6月14日上午（视气象条件动态调 整）。停运期间所有车辆均无法过海。 1号台风的生成意味着台风季的正式开启，而今年台风季来得有点晚。中国天气网大数据统计显示， 1991至2024年之间，1号台风平均生成日期为3月24日，今年1号台风已较常年偏晚两个多月。 今年台风季为何姗姗来迟？据中国天气网消息，国家气象中心台风与海洋气象预报中心副主任向纯怡介 绍，今年5月以来，副热带高压控制范围偏大、强度偏强是导致台风"难产"的主要原因之一，副热带高 压控制范围内的下沉气流像一个巨大的"罩子"覆盖在北太平洋洋面上，抑制了台风生成所需的热对流发 展。此外，由于今年热带辐合带位置偏南、北移缓慢，南海夏季风爆发的时间又较常年偏晚，使得低层 辐合条件较差，也是台风生成时间较晚的原因。 来源：南方都市报 记者：周敏萱 今年第1号台风"蝴蝶"（热带风暴级）已于6月11日生成。当天，南都记者从广东气象部门获悉，受"蝴 蝶"影响，13日至15日，广东省将出现今年入汛以来最强的降水过程，大部分市县先后有暴雨到大暴 雨，局部特大暴雨，主要降水时段为13日至14日。据悉，琼州海峡航 ...

Group 1 - The arrival of the "Plum Rain" season is imminent, with significant rainfall expected in Zhejiang province starting from June 8, lasting approximately one month [1][2] - The current weather conditions are influenced by a strong subtropical high pressure system, which is broader than in previous years, and cold air systems that may interact with it [2] - The complexity of this year's weather patterns is highlighted, with potential for both "Plum Rain + Typhoon" scenarios or interruptions in the rainy season [2][3] Group 2 - The weather forecast indicates that from June 7 to June 10, Hangzhou may experience several strong rainfall events, coinciding with the annual college entrance examination period [3] - Precautions are advised for students during the examination days due to expected hot and humid conditions, followed by rain, emphasizing the need for hydration and rain gear [3]