The app is for Tonglu county govenment of China. With this application, user can get and track the typhoon moving paths, satellite cloud images, rainfall information, water resource project information, weather forecast anytime anywhere. So it can provide scientific basis for Instant Decision-Making on Flood Prevention, Drought Control, Typhoon Control, etc and meet the requirement of government Rapid Response system. At present, the application has been deployed in a certain area, it works stably and reliably.