Updated NOAA tool delivers daily sargassum risk reports
The National Oceanic and Atmospheric Administration (NOAA) has just updated its Sargassum Inundation Risk (SIR) tool to offer daily reports and more detailed tracking of sargassum influxes in the Caribbean, tropical Atlantic, and Gulf of Mexico. Sargassum is a floating brown marine macroalga that, upon reaching the coast, begins to rot, releasing a foul smell that poses risks to humans and the environment. The risk of coastal sargassum arrivals on May 4, 2026, in the Gulf of Mexico. (NOAA) With the latest updates, NOAA is now able to provide daily reports with a resolution of half a mile (1 kilometer). Previously, these reports were issued on a weekly basis with a resolution of three miles (five kilometers). Designed as a risk assessment system, the SIR is intended to optimize sargassum monitoring for public use with special focus on coastal authorities, hotels, tour operators and communities so that they can anticipate and organize cleanup efforts. “Our updated risk tool is ...