本轮南方强降水进入最强时段，暴雨何时停？

Core Viewpoint - The current heavy rainfall in southern China is at its peak, with significant impacts expected across multiple provinces, leading to severe weather warnings and potential disasters [1][3]. Summary by Relevant Sections Rainfall Forecast and Impact - The Central Meteorological Observatory has issued an orange rainstorm warning, predicting heavy to extremely heavy rainfall in several regions including central Jiangsu, central Anhui, southeastern Henan, and parts of Hubei, Hunan, Chongqing, Guizhou, Guangxi, and Yunnan from June 20 to June 21 [1][3]. - Rainfall amounts in some areas have already reached 200 to 350 millimeters, with localized areas exceeding 400 millimeters, and the maximum recorded rainfall is nearly 830 millimeters in Liuzhou, Guangxi [3][5]. Meteorological Analysis - The heavy rainfall is attributed to a typical "Meiyu" (plum rain) pattern, influenced by recent atmospheric circulation changes, including the northward movement of the subtropical high and the convergence of warm moist air from the southwest with cold air from the north [4][5]. - The abundant moisture from the Bay of Bengal and the western Pacific has been transported northward, contributing to the formation of a rain belt spanning across the region [5]. Disaster Preparedness and Warnings - The Ministry of Water Resources and the China Meteorological Administration have jointly issued a red warning for mountain flood disasters, indicating a high likelihood of such events in several provinces, particularly in western Anhui, southeastern Henan, eastern Hubei, and northern Guangxi [6]. - Areas are advised to implement real-time monitoring and flood prevention measures, as risks of mountain floods, geological disasters, and urban flooding are elevated due to the ongoing rainfall [6].