Group 1 - The Guangxi Meteorological Bureau issued a blue rainstorm warning, predicting strong rainfall in northern Guangxi from June 21 to 24, with localized heavy to extremely heavy rain and severe convective weather [1] - Significant rainfall was recorded on June 20, with Nandan County in Hechi receiving 158.0 mm and Tianlin County in Baise receiving 130.5 mm [1] - Rivers such as Longjiang, Duliangjiang, and Rongjiang experienced a noticeable rise in water levels, with 9 rivers exceeding warning levels by 0.04 to 0.83 meters [1] Group 2 - The Autonomous Region Hydrology Center forecasts that Duliangjiang will see flood levels exceeding warning levels by approximately 2 meters, while the water level in Liuzhou will approach warning levels [2] - A joint warning for mountain flood disasters was issued, indicating a high likelihood of such disasters in the northwest of Baise and a significant likelihood in northern Liuzhou and western Hechi [2] - Authorities are urged to enhance monitoring, inspection, and evacuation measures in affected areas to prevent mountain flood disasters [2]

Core Viewpoint - The article reports on the severe flooding in Guangxi province due to Typhoon "Butterfly," highlighting the impact of heavy rainfall on various rivers and the issuance of flood warnings by local authorities [1] Summary by Relevant Sections - **Weather Impact**: From June 14, 8 AM to June 15, 8 AM, significant rainfall occurred in cities such as Yulin, Wuzhou, Qinzhou, Beihai, Hezhou, and Guigang, with some areas experiencing heavy to extremely heavy rainfall [1] - **Flooding Details**: The strong rainfall caused water levels in rivers like Beiliu River, Nanliu River, and Jiuzhou River to rise between 1 to 6 meters, with 18 monitoring stations across 11 rivers reporting water levels exceeding warning levels by 0.02 to 2.71 meters [1] - **Record Floods**: Notably, the upper reaches of Beiliu River and its tributaries, as well as the upper reaches of Nanliu River, recorded the highest flood levels since monitoring began [1] - **Warnings Issued**: The Guangxi Hydrological Center issued a blue flood warning at 10 PM on June 14, and as of 8 AM on June 15, 11 monitoring stations across 8 rivers continued to report water levels above warning thresholds by 0.02 to 2.35 meters [1]