NOAA's National Ocean Service (NOS) has developed the Northern Gulf of America Operational Forecast System (NGOFS) including two nested Northeast and Northwest Gulf of America Operational Forecast Systems (NEGOFS/NWGOFS). NGOFS is based on a three-dimensional FVCOM model that runs on NOAA's High Performance Computing System (HPC). NGOFS provides water levels, currents, water temperature and salinity nowcast and forecast guidance as well as interpolated winds from National Weather Service products for the northern Gulf of America including seven ports at Matagorda Bay, Galveston Bay, Sabine Neches, Calcasieu/Lake Charles, Gulfport, Pascagoula Bay and Mobile Bay, six of which are CO-OPS PORTS® partners. NGOFS runs four times per day and generates 6-hour nowcasts and 48-hour forecast guidance. NGOFS products include time series graphics at station locations and aerial animations for all five parameters (winds, water levels, currents, temperature and salinity).

The Northern Gulf of America Operational Forecast System 2 (NGOFS2) is based on a three-dimensional FVCOM model that runs on NOAA's High Performance Computing System (HPC). NGOFS2 relies on CO-OPS' real-time water level, temperature and salinity observations, NWS Extratropical Storm Surge (ETSS) forecasts, the Advanced CIRCulation Model (ADCIRC) ec2001 tide database, U.S. Geological Survey (USGS) river data, and the Global Real-Time Ocean Forecast System (G-RTOFS). All CO-OPS official real-time products, including nowcast and forecast guidance from NGOFS2 are monitored by the CO-OPS's Continuous Operational Real-Time Monitoring System (CORMS). CORMS provides 24 hour per day, 7 day 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.

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).

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).

"Disclaimer: The Northern Gulf of Mexico Operational Forecast System (NGOFS) has been implemented by NOAA's National Ocean Service (NOS) to provide the maritime user community with short-term predictions of water levels, water currents, water temperatures and salinity of the northern Gulf of Mexico. NGOFS uses a numerical hydrodynamic model to generate the nowcast and forecast information; therefore, they should be considered as model-generated nowcast and forecast guidance . For more detailed information related to the OFS disclaimer, please visit at the Disclaimers web page (https://tidesandcurrents.noaa.gov/disclaimers.html)."

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).

The Lake Superior Operational Forecast System (LSOFS) is a NOAA project aimed at providing improved predictions of water levels, currents and water temperatures in Lake Superior to the user communities. Similar systems are operational in the other 4 Great Lakes as well. Collectively these form the Great Lakes Operational Forecast System (GLOFS). The objective of GLOFS is to produce nowcast and forecast guidance (displayed out to 24 hours) of total water level, current velocity, and water temperatures in the Lakes to be used by the commercial shipping, recreational boating, and emergency response communities.

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.