Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Regional Hydrodynamic Model Outputs of the NOAA Port of New York and New Jersey Operational Forecast System (NYOFS)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2017-01-01T00:00:00.000+00:00
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.

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov