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Since last night, a city-wide rainfall has hit. As night fell, the rain gradually intensified, with the rainfall in Xicheng Rending Lake, Chaoyang Panjiayuan, Shijingshan Wulituo, Tongzhou Yujiawu and other places reaching torrential rain levels within one hour.

At present, the heavy rainfall clouds affecting Beijing have moved out, and the Municipal Meteorological Observatory has lifted the blue warning signal for heavy rain. However, scattered thunderstorms are expected to continue in Beijing from this afternoon to the first half of the night, so please take precautions.

The rain intensified after nightfall yesterday, and Yujiawu in Tongzhou experienced the "most intense rain for 1 hour"

From yesterday afternoon to just after nightfall, the precipitation mainly affected some urban areas and southwestern mountainous areas, and the overall rain was not too heavy. According to data released by the official Weibo account of the Beijing Meteorological Bureau, the rain began to intensify across the city after 22:00.

From 17:00 to 22:00 on August 17, the average rainfall in the whole city was 4 mm, and the average rainfall in the urban area was 11 mm. At 23:00, the average rainfall in the whole city increased to 7.6 mm, and the average rainfall in the urban area soared to 19.3 mm, with the rain in the urban area being even heavier.

One hour later, as of 0:00 on the 18th, the average precipitation in the city increased to 14.2 mm, and the average precipitation in the urban area was 30.7 mm. According to the 12-hour rainfall standard, the entire city reached the heavy rain level at this time, and the urban area reached the torrential rain level. (Rainfall of 15.0 mm to 29.9 mm in 12 hours is heavy rain; rainfall of 30.0 mm to 69.9 mm in 12 hours is torrential rain)

According to the latest release from the Meteorological Observatory, from 17:00 on August 17 to 7:00 on August 18, the average precipitation in the city was 22.8 mm, and the average precipitation in the urban area was 35.8 mm. The largest rainfall in the urban area and the entire city occurred in Chaoyang Qianmu Lake Park, which was 120.3 mm.

How heavy was the rain last night? During the entire rainfall process, the rainfall in many places reached the rainstorm standard in one hour. For example, from 18:00 to 19:00 on the 17th, the maximum hourly precipitation intensity occurred in Rending Lake in Xicheng, which was 42.9 mm/hour; Chaoyang Qianmu Lake Park, 58.8 mm/hour (20:00-21:00 on the 17th); from 21:00 to 22:00, the maximum precipitation in the last hour was 35.3 mm in Panjiayuan, Chaoyang; from 22:00 to 23:00, the maximum precipitation in the last hour was 53.1 mm in Wulituo, Shijingshan.

From 23:00 on August 17 to 00:00 on August 18, the rainfall intensity in Yujiawu, Tongzhou was 60.3 mm/hour, which was also the most intense hour in the entire rainfall process.

The heavy rain cloud has moved out, the rainstorm warning has been lifted, but the warnings for waterlogging and other waterlogging are still in effect

At present, the heavy rainfall clouds affecting Beijing have moved out, and the Municipal Meteorological Observatory lifted the blue warning signal for heavy rain at 10:00 on August 18.

The Beijing Meteorological Observatory predicts that there will still be scattered thunderstorms in Beijing from this afternoon to the first half of the night, with heavy short-term rainfall in some areas. Please pay attention to rain protection and traffic safety when going out, avoid traveling in mountainous areas, and beware of geological disasters.

At present, Beijing's yellow warning for geological disaster meteorological risks, blue warning for waterlogging, and blue warning for flash floods are still in effect.

At 23:00 yesterday, the Municipal Planning and Natural Resources Commission issued a landslide risk warning along roads: From 23:00 on August 17 to 23:00 on August 18, there is a high risk of landslide disasters on the slopes of some sections along the mountain roads in Fangshan District, Mentougou District, Changping District, Yanqing District, Huairou District, Miyun District and Pinggu District. Please take precautions.

At 18:00 on August 17, the Municipal Planning and Natural Resources Commission and the Municipal Meteorological Bureau upgraded and issued a yellow warning for geological disaster meteorological risks. From 23:00 on August 17 to 23:00 on August 18, the risk of collapse, landslide, mud-rock flow and other geological disasters in the northwest of Fangshan, the west of Mentougou, the middle of Huairou, and the northwest of Miyun in Beijing is high (yellow warning); there is a risk of collapse, landslide and other geological disasters in the south and northeast of Fangshan, most of Mentougou, the northwest of Haidian, the west and north of Changping, the east of Yanqing, the north-central and southwestern Huairou, the southwestern and central Miyun, and the northeast of Pinggu (blue warning), please pay attention to prevention.

The Municipal Water Affairs Bureau and the Municipal Meteorological Bureau jointly issued a blue warning for waterlogging at 20:30 on August 17. It is estimated that there will be a risk of waterlogging in Beijing's urban area from the night of the 17th to the 18th. Citizens are reminded to pay attention to weather conditions and changes in rainfall, avoid low-lying areas when traveling, and do a good job of protecting underground spaces.

The Municipal Water Affairs Bureau and the Municipal Meteorological Bureau jointly issued a blue warning for flash floods at 16:30 on August 16, 2024: Flash floods are expected to occur in mountainous areas of Beijing from 17:00 on the 17th to 8:00 on the 19th (blue risk). The public is requested to stay away from flash flood ditches, suspend outdoor activities involving mountains and water, and guard against flash floods.

In addition, according to the previously issued rainfall warning, all trains on the S2 line, Huairou-Miyun line, and Tongmi line are suspended today.

source:Know News