| Naval Meteorology and Oceanography Command | |
|---|---|
| Active | 1830 – present |
| Country | |
| Branch | |
| Type | Shore Establishment |
| Website | Homepage |
| Commanders | |
| Commanding Officer | RDML Erin Acosta |
| Deputy/Technical Director | Dr. Joe Calantoni[1] |
| Chief of Staff | CAPT Helen Quilenderino |
| Command Master Chief | AGCM Anthony J. Mizzulo |
| Public Affairs Officer | LT Blagoj Petkovski |
TheNaval Meteorology and Oceanography Command (COMNAVMETOCCOM) orCNMOC, serves as the operational arm of the Naval Oceanography Program for the United States Navy.[2] Headquartered at theStennis Space Center in Mississippi, CNMOC is an echelon three command reporting toUnited States Fleet Forces Command (USFLTFORCOM). CNMOC's area of responsibility is globally distributed, with assets on larger ships (aircraft carriers, amphibious ships, and command and control ships), shore facilities at fleet concentration areas, and larger production centers in the US.
CNMOC is focused on providing critical environmental knowledge to the war fighting disciplines ofAnti-Submarine Warfare, Naval Special Warfare, Mine Warfare, Intelligence, Surveillance and Reconnaissance, and Fleet Operations (Strike and Expeditionary), as well as to the support areas of Maritime Operations, Aviation Operations, Navigation, Precise Time, and Astrometry.

The Commanding Officer serves dual hatted as the Oceanographer of the Navy who works closely with the staff of CNMOC to ensure the proper resources are available to meet its mission, to act as a liaison between CNMOC and the chief of naval operations, and to represent the Naval Oceanography Program in interagency and international forums.
Responsible for command and management of the Naval Oceanography Program, utilizingmeteorology andoceanography, GI&S, andprecise time andastrometry, to leverage the environment to enable successful strategic, tactical and operationalbattle space utilization across the continuum of campaigning and at all levels of war – strategic, operational and tactical.
It traces its ancestry to theDepot of Charts and Instruments, a nineteenth-century repository for nautical charts and navigational equipment. In the 1840s, its superintendent, LieutenantMatthew Fontaine Maury, created and published a revolutionary series of ocean current and wind charts. This information, still used in modern computer models of theocean basins andatmosphere, laid the foundation for the sciences ofoceanography andmeteorology.
Atmospheric science was further developed with the birth ofnaval aviation early in the twentieth century. During World War I and the following decades, naval areological specialists applied the fledgling concepts of air masses and fronts to warfare, and provided forecasts to the firsttransatlantic flight.
The Navy's weather and ocean programs contributed greatly to Allied victory inWorld War II. In the Pacific, Navy forecasters cracked the Japanese weather code.Hydrographic survey ships, often under enemy fire, collected data along foreign coastlines for the creation of critical navigation charts.
In the mid-1970s, the Navy's meteorology and oceanography programs were integrated in a single organization reflecting nature's close interaction of sea and air. This structure is today the Naval Meteorology and Oceanography Command.
On November 1, 2017, Rear Admiral John A. Okon[3] relieved Rear AdmiralTimothy C. Gallaudet as commander.[4][5] On June 25, 2021, Rear Admiral Ronald J. Piret[6] assumed command from Rear Admiral Okon.[7][8] On August 15, 2025, Rear Admiral Erin O. Acosta assumed command from Rear Admiral Piret.
List of Commanders of Naval Meteorology and Oceanography Command:
| NAME | START |
|---|---|
| Rear AdmiralTimothy C. Gallaudet | June 1, 2014 |
| Rear Admiral John A. Okon | November 1, 2017 |
| Rear Admiral Ronald J. Piret | June 25, 2021 |
| Rear Admiral Erin O. Acosta | August 15, 2025 |
It is a third echelon operational command reporting to Fleet Forces Command. The Command's personnel are at its headquarters at the John C. Stennis Space Center nearBay St. Louis, Mississippi, and at several field activities around the world.
Effective October 1, 2014, the Command's major subordinate activities fourth echelon commands include theNaval Oceanographic Office, atStennis Space Center Mississippi;Fleet Numerical Meteorology and Oceanography Center, in Monterey, California; theNaval Observatory, in Washington, D.C.; the Naval Oceanography Operations Command, at Stennis Space Center, Mississippi; the Fleet Weather Center Norfolk, in Norfolk, Virginia; andFleet Weather Center San Diego, in San Diego, California. The Naval Meteorology and Oceanography Professional Development Center in Gulfport, Mississippi has been renamed Information Warfare Training Group Gulfport. All Commands have been administratively realigned to Naval Information Forces, Suffolk, Virginia. Operational control of Navy Oceanography forces remains aligned to Naval Meteorology and Oceanography Command.
Furthermore, effective October 1, 2014, the Command realigned its fifth echelon commands. The Naval Ice Center, in Suitland, Maryland aligned underneath the Fleet Weather Center Norfolk; TheJoint Typhoon Warning Center, inPearl Harbor, Hawaii aligned underneath Fleet Weather Center San Diego; TheFleet Survey Team, atStennis Space Center, Mississippi aligned underneath the Naval Oceanographic Office; Naval Oceanography Anti-Submarine Warfare Center - Stennis Space Center, Mississippi, Naval Oceanography Mine Warfare Center - Stennis Space Center, Mississippi, and Naval Oceanography Special Warfare Center - San Diego, California who all align underneath The Naval Oceanography Operations Command; In 2020 Naval Oceanography Anti-Submarine Warfare Center - Yokosuka, Japan, re-aligned under Fleet Weather Center San Diego. In 2020, Strike Group Oceanography Teams were established in San Diego and then Norfolk aligned under the respective Fleet Weather Centers.It services to five of the Navy's war fighting disciplines:
It also supports Navigation, Precise Time and Astrometry, Maritime Operations and Aviation Operations.
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In fall 2020, Echelon 4 and 5 commands were again realigned to reflect the following: Fleet Weather Center San Diego now is ISC to Strike Group Oceanography Team San Diego, Naval Oceanography Anti-Submarine Warfare Center Yokosuka, Fleet Weather Center Component Bahrain, andJoint Typhoon Warning Center. Fleet Weather Center Norfolk is ISC to Strike Group Oceanography Team Norfolk and Naval Ice Command. The Naval Oceanography Operations Command is ISC toFleet Survey Team and Naval Oceanography Special Warfare Center.
This article incorporatespublic domain material from websites or documents of theUnited States Navy.
30°22′19″N89°36′49″W / 30.3720°N 89.6136°W /30.3720; -89.6136