Layers of sargasso are located to the east and to the west of Martinique on June 13 and 14. These rafts come from the atlantic sector and move up to the north side of the island. On June 14, sargasso are detected to the east of the area Francis/Caravelle, in a perimeter of 5 to 40 km.
Signals are observed at the entrance of the Bay of Robert and the areas to the east and south-east of Pointe de la Caravelle. The benches in the drift are located along the north-eastern coast, between Sainte-Marie and Basse-Pointe. In the caribbean area, a wide water stretches from the south of the Diamond up to Schoelcher, in less than 10 km from the coast. Some signals are visible in the Saint-Pierre/Preacher.
For the west Indies, the images from 11 to 14 June 2020 have been analyzed. Many rafts are visible around the islands during the 4 days, with a building on June 13 and 14. Tablecloths of sargassum are found in the sectors of atlantic and caribbean islands, involving a high risk of groundings.
The benches in the drift are located in the south-eastern sector of Barbados and in the current of the Guianas, indicating a flow of sargassum continuously since the sector Amazon. Strong signals are still detected in the northern area of Brazil around the current rétroflexion.