Marine Heatwave Bulletin Forecasts for August 29, 2026 – Reposted from Mercator Ocean International

Global Ocean North Atlantic The marine heatwave in the Gulf of Mexico is increasing in intensity as the area covered by strong categories expands. The marine heatwave off the coast of Guinea is shrinking in area but remains generally stable in intensity, with conditions still ranging from moderate to strong.  South Atlantic The marine heatwave… Read More Marine heatwave category forecasts for 29 August, 2026 for the Global Ocean. Data: GLO12 forecast. Source: Copernicus Marine Service/Mercator Ocean International.

Marine Heatwave Bulletin Forecasts for August 22, 2026 – Reposted from Mercator Ocean International

Global Ocean North Atlantic The marine heatwave in the North Atlantic is shrinking in area but, more importantly, in intensity. Only a few areas remain in the “strong” category—north of Spain, around the Canary Islands, and in the central part of the basin around 30°N—while the rest have been downgraded to “moderate”. Mediterranean Sea The… Read More Marine heatwave category forecasts for 22 August, 2026 for the Global Ocean. Data: GLO12 forecast. Source: Copernicus Marine Service/Mercator Ocean International.

Marine Heatwave Bulletin Forecasts for August 15, 2026 – Reposted from Mercator Ocean International

GLOBAL OCEAN North Atlantic The marine heatwave affecting the middle of the basin, around 30°N, is increasing in intensity but remains stable in extent. Pacific Ocean Indian Ocean The marine heatwaves west of Madagascar and in the central part of the basin remain stable in intensity, still ranging from moderate to strong, while those in western part of the basin are… Read More Marine heatwave category forecasts for 15 August, 2026 for the Global Ocean. Data: GLO12 forecast. Source: Copernicus Marine Service/Mercator Ocean International.

Outlook of Sargassum Blooms – July 31, 2026

A perspective for the Caribbean Sea and Gulf of America by 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 July 2026, with warm colors representing higher abundance. The top color (red) indicates that 0.4% of the ocean surface is covered by… Read More Sargassum Outlook July 2026

Marine heatwave Bulletin Forecasts for July 25, 2026​ – Reposted from Mercator Ocean International

Global Ocean North Atlantic The marine heatwave extending from south of the British Isles and stretching across the Atlantic all the way to Florida, generally stable in area but is decreasing in intensity, with most areas now classified as moderate to strong. The marine heatwave in the Gulf of Mexico remains stable in intensity, with most areas still classified as moderate, but is… Read More Global SST July 25, 2026