A citizen walks in rain in Daxing District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Peng Ziyang)

A man runs in rain in Daxing District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Peng Ziyang)

Staff members pump water on the street in Haidian District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Ren Chao)

A man rides in rain in Chaoyang District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Ju Huanzong)

A woman runs in rain in Chaoyang District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Ju Huanzong)

A man walks in rain in Chaoyang District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Ju Huanzong)

People clear water on the street in Haidian District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Ren Chao)

Cars run on a waterlogged road in Xicheng District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Zhang Chenlin)

People walk in rain in Daxing District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Peng Ziyang)

A vehicle runs on a waterlogged road in Xicheng District, Beijing, capital of China, Aug. 12, 2020. Beijing meteorological authorities issued a yellow alert for rainstorms, forecasting that torrential rain would batter the Beijing-Tianjin-Hebei region between Wednesday and Thursday. (Xinhua/Ma Xiaodong)