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GCOOS is the U.S. certified ocean observing system dedicated to America’s Gulf

Ocean Observations Before, During and After Hurricane Isaias
Featured News, Hurricanes
GCOOS tracks ocean data needed to predict, plot and track Hurricane Isaias As Hurricane Isaias moves toward landfall along the northern Gulf Coast, the Gulf [...]» Read More
GCOOS 2026 Fall Members’ Meeting
Around the Gulf, Featured News
Registration Now Open for the GCOOS Fall Members' Meeting! The GCOOS Fall Members’ Meeting has been scheduled for Thursday, Nov. 5 at the new Mote [...]» Read More
CETACEAN Gathers Sperm Whale Data from Veracruz
Around the Gulf, Featured News
In August, GCOOS Executive Director Dr. Jorge Brenner and Marine Mammal Biologist Megan Howson joined researchers in Veracruz, Mexico, to study sperm whales. Manolo Fernandez [...]» Read More
2026 Dead Zone Report
Around the Gulf, Featured News
2026 Dead Zone Smaller than Average Following Tropical Storm The recent mapping of the “Dead Zone” in the northern Gulf of Mexico in late July [...]» Read More
Register Now for GCOOS-IOOS Code Spring
Around the Gulf, Featured News
Registration is now open for the IOOS 2026 DMAC Code Sprint being co-sponsored by GCOOS. During this three-day hackathon style event, teams of developers, academic [...]» Read More

Explore near-real-time and historical ocean and coastal data from observing stations throughout the Gulf and its estuaries using interactive maps, visualizations and access to environmental observations and model information.

Note: 3-5 p.m. CT Wednesdays is the maintenance window for data servers, which could cause data service interruption. If you experience issues outside of this window, please report it to data@gcoos.org.

GCOOS OceansMap

NEW! The all-new GCOOS OceansMap brings observations and model forecasts together, allowing users to compare datasets, visualize changing conditions, identify patterns and explore how different ocean processes interact. OceansMap helps to provide insights for research, planning and decision-making.

Our Mission

Our mission is to provide on-demand information about the Gulf’s coastal and open ocean waters that is accurate, reliable and benefits people, ecosystems and the economy.