NOAA's National Ocean Service (NOS) has developed a Port of New York and New Jersey Operational Forecast System (NYOFS). The cornerstone of NYOFS is an advanced three-dimensional hydrodynamic model that uses realtime water-level and wind data and other inputs to predict the water levels and currents at thousands of locations throughout the harbor. The system runs in both nowcast and forecast modes. The nowcast mode is driven by real-time water levels and winds from the New York/New Jersey PORTS®, and is updated hourly. The forecast mode performs 30-hour forecasts four times a day. Primary inputs for this mode include information from the nowcast model, tidal harmonics, and forecasts of subtidal water levels and winds provided by NOAA's National Weather Service numerical models.

The NOAA National Ocean Service (NOS) developed the Delaware Bay Operational Forecast System (DBOFS) based on a three-dimensional Regional Ocean Modeling System (ROMS) model that runs on NOAA High Performance Computers (HPC). DBOFS provides water level, currents, water temperature and salinity nowcast and forecast guidance as well as interpolated winds from National Weather Service products. DBOFS runs four times per day and generates 6-hour nowcasts and 48-hour forecast guidance. DBOFS products include time series graphics at station locations and aerial animations of the whole Delaware Bay for all five parameters (wind, water level, currents, temperature and salinity).

Oceanographic nowcasts and forecast guidance are scientific predictions about the present and future states of a water body (generally including water levels, currents, water temperature and salinity). These predictions rely on either observed data or forecasts from large-scale numerical models. A nowcast incorporates recent (and often near real-time) observed meteorological, oceanographic, and/or river flow rate data and/or analyzed (e.g. gridded) meteorological and oceanographic products. The wind data used to run CBOFS are based on the National Weather Service (NWS)/Real Time Mesoscale Analysis (RTMA) winds (for the nowcast) and an interpolation of the NWS North American Mesoscale (NAM)-12 atmospheric forecast model data (for the forecast). The NWS Global Forecasting System winds serve as backup winds for both the nowcast and forecast runs. CBOFS runs on NOAA's High Performance Computers (HPC) in a new Coastal Ocean Modeling Framework (COMF) developed by CO-OPS. All CO-OPS official real-time products, including nowcast and forecast guidance from CBOFS are monitored by the CO-OPS's Continuous Operational Real-Time Monitoring System (CORMS). CORMS provides 24 hour per day, 7 days per week monitoring and quality control of sensors and data in order to ensure the availability, accuracy, and quality of tide, water level, current, and other marine environmental information. CORMS is intended to identify invalid and erroneous data and information before application of the data by real-time and near real-time users.

NOAA's National Ocean Service (NOS) has developed a Tampa Bay Operational Forecast System (TBOFS). TBOFS is based on a three-dimensional ROMS model that runs on NOAA's High Performance Computers (HPC). TBOFS provides water level, currents, water temperature and salinity nowcast and forecast guidance as well as interpolated winds from National Weather Service products. TBOFS runs four times per day and generates 6-hour nowcasts and 48-hour forecast guidance. TBOFS products include time series graphics at station locations and aerial animations of the whole Tampa Bay for all five parameters (wind, water level, currents, temperature and salinity).

NOAA's National Ocean Service (NOS) has developed a St. John's River Operational Forecast System (SJROFS). The Environmental Fluid Dynamics Code (EFDC) has been used to perform operational nowcasts and forecasts for the Lower St. John's River. The EFDC model solves the three-dimensional, vertically hydrostatic, free surface, turbulent averaged equations of motions for a variable density fluid. The physics of the EFDC model and many aspects of the computation scheme are equivalent to the widely used Blumberg-Mellor model (POM). SJROFS is to produce hourly nowcasts and run every six hours four times daily forecasts of total water level and current velocity in the River to be used by the commercial and recreational maritime community.

NOAA's National Ocean Service (NOS) has developed a St. John's River Operational Forecast System (SJROFS). The Environmental Fluid Dynamics Code (EFDC) has been used to perform operational nowcasts and forecasts for the Lower St. John's River. The EFDC model solves the three-dimensional, vertically hydrostatic, free surface, turbulent averaged equations of motions for a variable density fluid. The physics of the EFDC model and many aspects of the computation scheme are equivalent to the widely used Blumberg-Mellor model (POM). SJROFS is to produce hourly nowcasts and run every six hours four times daily forecasts of total water level and current velocity in the River to be used by the commercial and recreational maritime community.

NOAA's National Ocean Service (NOS) has developed a Columbia River Estuary Operational Forecast System (CREOFS). CREOFS is based on a three-dimensional SELFE model that runs on NOAA's High Performance Computers (HPC). CREOFS provides water level, currents, water temperature and salinity nowcast and forecast guidance as well as interpolated winds from National Weather Service products for five separate subdomains: Upper Columbia River subdomain, Middle Columbia River subdomain, Lower Columbia River subdomain, Columbia River Bar Entrance subdomain, and the mouth and offshore subdomain of the Columbia River. CREOFS runs four times per day and generates 6-hour nowcasts and 48-hour forecast guidance. CREOFS products include time series graphics at station locations and aerial animations of the Columbia River Estuary for all five parameters (wind, water level, currents, temperature and salinity).

NOAA's National Ocean Service (NOS) has developed a Columbia River Estuary Operational Forecast System (CREOFS). CREOFS is based on a three-dimensional SELFE model that runs on NOAA's High Performance Computers (HPC). CREOFS provides water level, currents, water temperature and salinity nowcast and forecast guidance as well as interpolated winds from National Weather Service products for five separate subdomains: Upper Columbia River subdomain, Middle Columbia River subdomain, Lower Columbia River subdomain, Columbia River Bar Entrance subdomain, and the mouth and offshore subdomain of the Columbia River. CREOFS runs four times per day and generates 6-hour nowcasts and 48-hour forecast guidance. CREOFS products include time series graphics at station locations and aerial animations of the Columbia River Estuary for all five parameters (wind, water level, currents, temperature and salinity).

NOAA's National Ocean Service (NOS) collaborated with the Great Lakes Environmental Research Laboratory (GLERL) in developing and transitioning the new generation of Lake Erie Operational Forecast System (LEOFS) to operations, to provide higher-resolution forecast guidance of water level, currents and water temperature. The upgraded LEOFS uses the Finite Volume Community Ocean Model (FVCOM) as its core ocean circulation model and has extended the forecast horizon to 120 hours. LEOFS runs four times per day with 6-hour nowcast and 120-hour forecast for each cycle on the NCEP's Weather Climate Operational Supercomputer (WCOSS).

NOAA's National Ocean Service (NOS) has developed a Gulf of Maine Operational Forecast System (GoMOFS). Based on Rutgers University's Regional Ocean Modeling System (ROMS), this OFS is to forecast water levels, currents, temperature and salinity for Gulf of Maine and its adjacent coastal area. The forecasts, which extend out to 72 hours, will support the maritime user community in navigation, emergency response, and ecological forecasts, etc. GoMOFS runs on NOAA's High Performance Computers (HPC) in a new Coastal Ocean Modeling Framework (COMF) developed by CO-OPS. As a result, GoMOFS has direct access to National Weather Service operational meteorological products that it needs to run reliably.