多地暴雨、大暴雨！本轮华北强降水何时结束？

Group 1 - The northern regions of China have been experiencing record-breaking heavy rainfall since July 23, with some areas receiving nearly a year's worth of rain in a single day [1] - A total of 19 weather stations in northern China have broken historical monthly precipitation records, with 13 stations setting all-time highs [1] - The extreme rainfall has resulted in cumulative precipitation exceeding 100 millimeters in several areas, with some regions like Shijiazhuang and Baoding surpassing 400 millimeters [1] Group 2 - The Central Meteorological Observatory has issued a yellow rainstorm warning, predicting heavy rain to continue but with a weakening trend over the next three days [2] - Areas expected to be affected include parts of Inner Mongolia, Shaanxi, Shanxi, Hebei, Beijing, and several other provinces, with localized heavy rain and strong convective weather possible [2] - Despite the expected reduction in rainfall intensity, caution is advised, especially during nighttime when heavy rain is more likely [2] Group 3 - The causes of the heavy rainfall in North China are complex, involving sufficient moisture from the summer monsoon and the influence of cold air from the westerly wind belt [3] - The topography of the Taihang Mountains enhances the efficiency of moisture condensation, contributing to extreme localized rainfall [3] - The phenomenon known as "three typhoons dancing together" is related to the rainfall but does not have a direct causal relationship with the current heavy precipitation events [3]