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| Regional Specialized Meteorological Center La Réunion | |
|---|---|
| Name | Regional Specialized Meteorological Center La Réunion |
| Formation | 1993 |
| Headquarters | Saint-Denis, Réunion |
| Jurisdiction | World Meteorological Organization World ICAO Indian Ocean |
| Parent agency | Météo-France |
Regional Specialized Meteorological Center La Réunion The Regional Specialized Meteorological Center La Réunion is a meteorological service based in Saint-Denis, Réunion that provides tropical cyclone forecasting, warnings, and analysis for the southwest Indian Ocean basin. It operates under the auspices of the World Meteorological Organization and coordinates with agencies such as Météo-France, ICAO, United Nations, and national meteorological services of Madagascar, Mauritius, and Mozambique. The center issues public bulletins, specialized products for aviation and maritime interests, and contributes to regional disaster risk reduction efforts involving organizations like OCHA and IFRC.
The center functions as one of several Regional Specialized Meteorological Centers designated by the World Meteorological Organization alongside counterparts such as National Hurricane Center, Japan Meteorological Agency, Meteorological Service of Canada, Australian Bureau of Meteorology, Météo-France New Caledonia, and Met Office. Located in Réunion under France sovereignty, it provides official tropical cyclone analysis for the southwest Indian Ocean basin, extending from the equator to the 40°E meridian and from the African coast to 90°E. Its clientele includes national services of South Africa, Tanzania, Comoros, Seychelles, Kenya, and Somalia, plus regional organizations such as Indian Ocean Commission and African Union.
The center’s establishment followed evolving global arrangements within the World Meteorological Organization and the reorganization of Météo-France services during the late 20th century. Predecessor roles were performed by regional observatories and colonial-era meteorological posts on islands like Mauritius and Madagascar. Formal designation as an RSMC aligned with developments after major cyclones such as Cyclone Gafilo and Cyclone Hollanda that underscored the need for coordinated warning services. The center has since modernized in parallel with changes at institutions including ECMWF, NOAA, and the IPCC.
Official responsibilities include the issuance of tropical cyclone advisories, forecasting of track and intensity, and dissemination of warnings tailored for interests like Air France, Mauritius Airways, MSC Cruises, and regional ports such as Port Louis. The area of responsibility encompasses waters adjacent to Madagascar, Mozambique Channel, Seychelles, Comoros, and the French Southern and Antarctic Lands like Île Amsterdam and Saint-Paul. It coordinates storm naming with national meteorological services and supports emergency management agencies including Réponse Internationale partners and national disaster management agencies in Madagascar and Mauritius.
Forecast products include deterministic track and intensity forecasts, probabilistic guidance, storm surge estimates for coastlines like Toamasina, and gale warnings for shipping routes used by companies such as CMA CGM and Maersk. Warning dissemination uses channels interfacing with ICAO NOTAM systems, IMO routing, regional radio networks, and partners like Agence Française de Développement for humanitarian logistics. The center’s operational protocols reflect standards set by the World Meteorological Organization and lessons from events such as Cyclone Idai and Cyclone Freddy.
Naming follows agreed regional lists coordinated among national services including Mauritius Meteorological Services and the Madagascar Meteorological Service. Classification uses intensity criteria aligned with conventions from Météo-France and comparable to scales like the Saffir–Simpson scale used by the National Hurricane Center, while also mapping to regional categories such as tropical disturbance, tropical depression, moderate tropical storm, severe tropical storm, tropical cyclone, intense tropical cyclone, and very intense tropical cyclone. The center archives named storm data contributing to international datasets hosted by Joint Typhoon Warning Center and IBTrACS.
The center ingests satellite data from platforms such as Meteosat, NOAA polar-orbiting satellites, and Himawari, plus scatterometer and altimeter data shared via EUMETSAT and Copernicus services. Numerical weather prediction relies on models including ARPEGE, Arome, GFS, IFS, and ensembles from global centers such as Met Office and JMA. Observational inputs include surface observations from islands like Rodrigues and Réunion observatories, buoy networks administered by Global Drifter Program contributors, and radiosonde launches coordinated with Météo-France field offices.
As an RSMC under the World Meteorological Organization framework, the center collaborates with regional bodies including Indian Ocean Rim Association, Indian Ocean Commission, and national meteorological services of Madagascar, Mauritius, Seychelles, South Africa, Mozambique, and Comoros. It exchanges data and expertise with international centers such as NOAA, ECMWF, JMA, BoM, and NHC and supports capacity building through partnerships with institutions like Université de La Réunion, CNRS, and IRD. The center contributes to regional resilience initiatives tied to programs by UNDP, World Bank, and European Union disaster risk reduction efforts.
Category:Meteorological services