The National Weather Service River Forecast System
The National Weather Service River Forecast System (NWSRFS) comprises techniques and programs for developing river forecasts. NWSRFS contains three major systems which are utilized to set up and use hydrologic and hydraulic models in river forecasting. The three systems include the Calibration System, the Operational Forecast System (OFS), and the Ensemble Streamflow Prediction System (ESP). These systems are evaluated frequently, and changes are made as becomes necessary. New components are added to improve the flexibility and functionality of the NWSRFS. Each system is interrelated and can be used with different models to produce a river forecast. This paper will describe each system and how the National Weather Service Southeast River Forecast Center (SERFC) uses them to produce river forecasts which are disseminated to the public.