持续147小时！北京4天下了接近一年的雨，累计8万人转移

Group 1 - The heavy rainfall in Beijing lasted for 147 hours, with a total precipitation of 543.4 millimeters, which is nearly equivalent to the city's average annual rainfall of approximately 600 millimeters [2][4] - The rainfall event has led to significant flooding, resulting in the death of 30 individuals, with the majority occurring in the Miyun district [1][4] - A total of 80,332 people have been evacuated from affected areas, with the highest numbers from Miyun, Huairou, and Fangshan districts [4] Group 2 - The Central Meteorological Observatory predicts that the heavy rainfall will gradually weaken and end by July 30, with the focus shifting to the East China region due to the influence of Typhoon "Zhu Jie Cao" [2] - The "train effect" meteorological phenomenon has been identified as a cause for the prolonged heavy rainfall, where successive rain bands repeatedly affect the same area [3][2] - The Ministry of Finance and the Ministry of Emergency Management have allocated 3.5 billion yuan in disaster relief funds to support emergency rescue and recovery efforts across nine provinces, including Beijing [5] Group 3 - The Miyun Reservoir has seen a significant increase in inflow due to the heavy rainfall, with a total inflow of 7.3 billion cubic meters and a discharge of 1.2 billion cubic meters as of July 29 [6] - The reservoir's current discharge rate is 1,120 cubic meters per second, with downstream river levels remaining high [6] - Satellite imagery indicates that while some areas around the Miyun Reservoir are flooded, efforts to manage water levels have been effective in slowing the rise [7]