1. a Zhejiang Meteorological Observatory, Hangzhou, Zhejiang, China
2. b Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province, Chengdu, SiChuan, China
3. c Key Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
4. d Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China
5. e University of Chinese Academy of Sciences, Beijing, China
6. f NOAA/NCEP/Environmental Modeling Center, I. M. System Group, College Park, Maryland