Summary of Key Points Core Viewpoint - The "Seven Down, Eight Up" flood prevention critical period has recently concluded, with significant rainfall and flooding events occurring across China, characterized by extreme conditions and high disaster potential [1][2]. Group 1: Flood Events - During the "Seven Down, Eight Up" period, a total of 330 rivers experienced floods exceeding warning levels, with 77 rivers surpassing guaranteed water levels, and 22 rivers recorded the highest floods since measurement began [1]. - The northern regions of China, particularly the Haihe River basin, experienced severe flooding, with 18 rivers recording floods that exceeded historical measurement records, accounting for over 80% of the total historical floods nationwide [2]. Group 2: Regional Disparities - The overall flood situation is characterized by a regional disparity, with northern areas experiencing more severe conditions compared to southern regions [2]. - In contrast, areas such as the Huanghuai and Jianghuai regions faced high temperatures and low rainfall, leading to drought conditions primarily affecting five provinces: Anhui, Henan, Shandong, Hubei, and Shaanxi [2]. Group 3: Weather Patterns - The rainfall patterns have shown strong intensity but weak coverage, with frequent typhoons impacting a wide area, leading to rapid increases in flood levels [3].

Core Viewpoint - The recent rainfall in Henan Province has significantly alleviated the drought conditions, with an average precipitation of 57.7 mm recorded from August 5 to 9, benefiting crop growth and yield [1] Summary by Relevant Sections Rainfall Impact - The rainfall process lasted for an extended period and exhibited significant convective characteristics, with uneven distribution of rainfall across the region [1] - Areas such as central Anyang, Hebi, western Xinxiang, and northern Jiaozuo received less rainfall, while southern Henan, Puyang, Xinxiang, and Jiyuan experienced heavy rain and localized torrential downpours [1] - A total of 136 counties (cities, districts) recorded average rainfall exceeding 50 mm, covering an area of 104,700 square kilometers [1] Agricultural Benefits - The rainfall is favorable for the growth and yield formation of autumn crops, with summer corn currently in the flowering to silk stage, peanuts in the pod swelling stage, and soybeans in the flowering stage [1] - The rainfall has improved soil moisture conditions, which is beneficial for maintaining the vitality of corn pollen and silk, promoting flowering, pollination, and grain formation [1] Future Weather Forecast - The forecast indicates more rainfall in the coming week, with showers and thunderstorms expected in the southern region from August 11 to 12, followed by a significant rainfall event from August 13 to 15 [1] - From August 16 to 17, the weather will primarily consist of showers and thunderstorms [1]

Summary of Key Points Core Viewpoint - The upcoming heavy rainfall in Henan province is expected to alleviate drought conditions while also posing risks of flooding in low-lying agricultural areas [1][3]. Group 1: Rainfall Forecast - From June 18 to June 21, Henan will experience significant rainfall, with maximum hourly rainfall reaching between 50 mm to 80 mm [1][2]. - The cumulative rainfall is projected to be between 70 mm to 160 mm in the eastern and southern regions, with localized areas receiving up to 300 mm [2]. Group 2: Agricultural Impact - The rainfall is anticipated to relieve drought conditions in northern, central, and eastern Henan, benefiting the growth of summer crops [3]. - As of June 16, 49% of soil moisture measurement stations in the province indicated drought conditions, particularly in northern, western, central, and eastern Henan [3]. Group 3: Flooding Risks - Prolonged and heavy rainfall in eastern and southern Henan may lead to flooding in low-lying agricultural fields, potentially damaging crops [4]. - The Ministry of Agriculture and the China Meteorological Administration have issued warnings regarding the risk of flooding in areas with high rainfall intensity [4]. Group 4: Safety Measures - Experts recommend preemptive measures such as clearing drainage channels to mitigate flooding risks and ensuring timely removal of standing water post-rainfall [5]. - The heavy rainfall and associated severe weather may also impact transportation and outdoor activities, necessitating enhanced safety management [5].

Core Viewpoint - Gansu Province has initiated large-scale rain enhancement operations, leading to preliminary alleviation of drought conditions in the region [1] Summary by Relevant Sections Rainfall Impact - Starting from May 21, Gansu Province experienced a rainfall event from west to east, with eastern areas, particularly those severely affected by drought, receiving light to moderate rain [1] - In Qingyang City, which faced over 60 days without effective rainfall, this was the first significant rain of the spring season, with maximum precipitation reaching 22.9 millimeters [1] - Among the eight districts in Qingyang, six recorded average rainfall exceeding 10 millimeters, qualifying as moderate rain, while other areas received light rain ranging from 5 to 8 millimeters [1]

Core Viewpoint - Recent rainfall in the Pearl River Basin has alleviated drought conditions in Yunnan and Guangxi provinces, which had been experiencing significant drought since November 2024 [1] Summary by Relevant Sections Drought Conditions - The Pearl River Basin faced a "rapid transition from abundance to scarcity," with the average rainfall in the Xijiang River Basin measuring 140 millimeters, which is 60% less than the same period in previous years [1] Rainfall Impact - Since April 19, the Pearl River Basin has experienced four rainfall events that have somewhat eased drought conditions in areas such as Liuzhou and Hechi in Guangxi [1] - Ongoing analysis indicates that further significant rainfall is expected in the region, which will continue to alleviate drought conditions in Guangxi and other affected areas [1]