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Experimental Weekly Sargassum Inundation Risk (SIR v1.3) By the National Oceanic and Atmospheric Administration (NOAA), and the University of South Florida (USF) Status: Jan 6-12, 2026
Marine heatwave Bulletin Forecasts for January 17, 2026
North Atlantic The marine heatwaves present in the Gulf of Mexico and the Caribbean Sea, decrease in extent and remain stable in terms of intensity, with moderate and strong categories still in place. The marine heatwave extending from the Antilles as far as the center of the basin is stable in intensity and area with moderate and strong categories. South Atlantic The extent and intensity of the marine heatwave between 30°S and 15°S… Read More
Marine heatwave Bulletin Forecasts for January 10, 2026
Key takeaways North Atlantic The marine heatwave present in the Gulf of Mexico, the Caribbean Sea, and as far as the center of the basin remain stable in terms of surface area and intensity, with moderate and strong categories still in place. South Atlantic The marine heatwave around 30°S is increasing in size and intensity, reaching… Read More
Experimental Weekly Sargassum Inundation Risk (SIR v1.3) By the National Oceanic and Atmospheric Administration (NOAA), and the University of South Florida (USF) Status:Dec 30- Jan 5, 2026
Outlook of Sargassum Blooms – January 5, 2026
A perspective for the Caribbean Sea and Gulf of America* by the University of South Florida Optical Oceanography Lab – (bbarnes4@usf.edu, yuyuan@usf.edu, huc@usf.edu) The map above shows the average Sargassum abundance for the month of December 2025, with warm colors representing higher abundance. The top color (red) indicates that 0.4% of the ocean surface is… Read More
