You are here: Home
The USNO websites,,,,, and are undergoing modernization efforts. The expected completion of the work and return of service is estimated as 30 April 2020. Please submit a requirements form to the USNOPAO if the information you are seeking is not accessible via other means.

Naval Oceanography Portal

The United States Naval Meteorology and Oceanography Command (NMOC) provides critical information from the ocean depths to the most distant reaches of space, meeting needs in the military, scientific, and civilian communities. 

The following NMOC components make their products available to the public through this portal:

The U.S. Naval Observatory (USNO) provides a wide range of astronomical data and products, and serves as the official source of time for the U.S. Department of Defense and a standard of time for the entire United States.


The following NMOC components have moved their publicly-available products to

Joint Typhoon Warning Center (JTWC)

Naval Oceanography Operations Command (NOOC)

Fleet Numerical Meteorology and Oceanography Center (FNMOC)

Naval Oceanographic Office (NAVO)


Please update your bookmarks.