Mercator Ocean International (MOi) oceanographers examine marine heatwaves across the global ocean. They analyse a variety of datasets from observations (satellite sea surface temperature maps) to numerical model analyses (assimilating satellite and in situ observations) and derive marine heatwave forecasts for a 7 day period.[1]

Atlantic Ocean

North Tropical Atlantic Ocean – In the Tropical North Atlantic, the marine heatwave remains stable overall. In the Gulf of Mexico, the marine heatwave is increasing in intensity, with most of it now in strong category.  

North Atlantic Ocean – MOi forecasts that marine heatwave in the mid North Atlantic remains stable overall. 

South Tropical Atlantic Ocean – In the Southern Tropical Atlantic, the marine heatwave is diminishing in intensity and area. In the central South Tropical Atlantic, the marine heatwave is in moderate category, with only a few strong categories persisting along the Brazilian coast.

More information : https://www.mercator-ocean.eu/en/category/mhw-bulletin/