marine heatwaves are continuing along the entire North Atlantic seafront, with moderate to high intensity locally.
The situation remains stable throughout the basin. The extent of the marine heatwave is stable, with moderate to strong and locally extreme levels close to the coast, mainly in the eastern Mediterranean.
marine heatwaves are continuing along the entire North Atlantic seafront, with moderate to high intensity locally.
the marine heatwave is still present with mainly strong categories.
the situation remains stable with mainly moderate categories and locally strong in the west due to el Niño.
the marine heatwave remains stable with strong intensities to the north of Madagascar.
the marine heatwave remains stable with moderate categories.
-1.5 to 2.5°C
-1.5 to 3°C
-1 to 1.5°C
-1 to 1.5°C
– 1.5 to 2.5°C and 3°C (to the East of the basin)
– 2 to 3°C (to the North of Madagascar)
– 1 to 2°C
Figure 2: Weekly surface temperature anomalies for the global ocean, for the week of 10 to 16 January, 2024. GLO12 analysis. Source: Mercator Ocean International.
For January 16, the Mercator Ocean International (MOi) forecasting system predicts that marine heatwaves will remain present along the entire North Atlantic coast of France, Spain and Portugal, with generally moderate categories which could reach varied levels locally.
The situation is slightly easing up over the eastern Mediterranean basin. The extent of the marine heatwave is stable, with categories ranging from moderate to severe.
For January 16, MOi forecasts that the marine heatwave in the North Tropical Atlantic will remain with moderate to severe categories. In the South Equatorial and South Tropical Atlantic, the marine heatwave is still present despite the drop in intensity.
In the Tropical Pacific, the situation is still present with mostly moderate categories and locally strong to severe in the west. The situation is intensifying to the east of the basin, with locally strong categories.
The marine heatwave in the Indian Ocean is still present, with a decrease in intensity to the north of Madagascar and increase in the middle of the Indian Basin towards 30°S.
In the northern part of the South East Asian seas, the marine heatwave remains stable with moderate to strong categories.
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Datasets and products: Global Ocean Physics Analysis and Forecast (sea surface temperature) E.U. Copernicus Marine Service/ Mercator Ocean International. https://doi.org/10.48670/moi-00016
