The maps above show Sargassum abundance, with warm colors representing high abundance. In November2020, the overall Sargassum amount in the offshore regions of the central Atlantic remained stable from October 2020. A small amount was still observed in the eastern Caribbean and Central West Atlantic (CWA, i.e., the region east of the Lesser Antilles in the maps below), but mostly restricted to the north and east of the Amazon River mouth. The following regions continued to be largely free of Sargassum mats: the western Caribbean Sea(CS), Gulf of Mexico(GoM), Florida Straits, and east coast of Florida. The total Sargassum amount in in the tropical Atlantic remained to be ~1.4M tons, similar to that inNovember2014and2015.However, the high amount of Sargassum in the Central East Atlantic along with the west Africa coast from The Gambia to Liberia (not shown in the maps below) was much reduced from 0.8M tons in October 2020to 0.1M tons in November2020. Looking ahead, the CS, Gulf of Mexico, Florida Straits, and east coast of Florida will continue to be largely free of Sargassum in in the coming months, possibly through winter. However, there is also a possibility that the eastern Caribbean will experience small amounts of Sargassum starting in January 2021. We will keep a close eye on how Sargassum in the CS and the tropical Atlantic may evolve in the next two months. More updates will be provided by the end of December2020, and more information and imagery can be found from the Sargassum Watch System (SaWS, https://optics.marine.usf.edu/projects/saws.html)