China News Service, Beijing, August 10 (Chen Hang) On the 10th, the reporter learned from the Beijing Municipal Meteorological Department that there were still scattered thundershowers in Beijing from afternoon to evening today, accompanied by short-term strong winds and hail of magnitude 7 and 8 locally. .
Affected by the high-altitude trough at the bottom of the low vortex, thunderstorms occurred from west to east in Beijing from the evening to the night of the 9th. The short-term rain was strong. There were 234 stations (53.1% of the total number of stations) in Beijing with gusts reaching or exceeding level 7, including Mentougou, Fangshan, The localities of Yanqing, Pinggu, Fengtai, Chaoyang, Shijingshan, Tongzhou, and Xicheng reach level 9-11. Hail has occurred in Yanqing, Huairou, Miyun, Changping, Haidian, Chaoyang, Fangshan and other localities, with a maximum diameter of about 2 cm. From 18:00 on the 9th to 04:00 on the 10th, Beijing averaged 18.0 mm, the urban area was 28.1 mm, the northwest was 11.3 mm, the southwest was 18.7 mm, the northeast was 13.2 mm, and the southeast was 19.5 mm. The largest rainfall occurred in Fangshan Nanhe, 74.2 mm; the largest Hourly rain is strong outside the Chaoyang, 54.8 mm/hour from 21 to 22 o'clock on the 9th.
According to Zhang Linna, chief forecaster of the Beijing Meteorological Observatory, it is expected that there will be scattered thunderstorms in Beijing from afternoon to evening today, accompanied by short-term strong winds of magnitude 7 and 8 and hail. The rainfall is unevenly distributed, with an average of 1-5 mm in Beijing, about 50 mm in local areas, and a maximum hourly rainfall of 30-40 mm. According to the current data analysis, due to the combined effects of the warm and humid airflow from the outer periphery of the subtropical high and the upper-altitude trough, there will be a heavy rainfall in the Beijing-Tianjin-Hebei region on the 12th, with heavy rain to heavy rain in Beijing.
Zhang Linna said that the weather under the influence of the upper-altitude trough is complex and changeable, and the rainfall is localized and sudden. The Beijing Meteorological Observatory will pay close attention to timely rolling updates of forecasts, and the public should pay attention to short-term nowcasting information.
Zhang Linna suggested that due to the scattered and local characteristics of rainfall, there are still short-term heavy rains in the local area, accompanied by wind and hail weather. Please take precautions for outdoor activities. Please bring rain gear and use transportation as much as possible when traveling. For the risks of mountain torrents and geological disasters, people try to avoid going to dangerous areas, rivers, and hidden danger areas of geological disasters in mountainous areas. (Finish)