World Meteorological Organization (WMO)
WMO is a United Nations specialized agency for meteorology (weather and climate), operational hydrology, and related geophysical sciences. Established in 1950, it coordinates global weather observation, data sharing, and climate monitoring.
- WMO coordinates the Global Climate Observing System (GCOS), including networks of weather stations, ocean buoys (Argo float network, TAO/TRITON buoy array in the Pacific), and satellites that provide the SST data underpinning ENSO forecasts.
- WMO publishes regular ENSO updates — typically every three months — based on ensemble forecasts from multiple national meteorological services.
- The Global Seasonal Climate Update (GSCU), issued by WMO, is the primary international reference for seasonal climate outlooks.
- WMO's 2023 El Nino advisory correctly forecast the 2023-24 event, which became the strongest on record at the time.
● Tracked since March 22, 2026 · last seen July 03, 2026 · updates as the daily brief publishes
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