A fine forecasting system was developed for provincial/prefecturallevel meteorological offices and military weather forecasting agencies in China by adopting the advanced mesoscale models and operational platform, and assembling the software of the parallel computing and visualizing tools. The accuracy of the 24hour fineorrainy forecast is up to over 80% and the torrential rain forecast is quite helpful. The system was also used to forecast sea waves with the results improved obviously. The system is well suitable for the operational application at provincial/prefecturallevel meteorological offices and the localization of forecasting models in either economical or forecast quality aspect.