Regional and Mesoscale Meteorology Branch

Curtis Seaman and Bernie Connell of CIRA attended the WMO RGB Workshop, held at the headquarters of the Swedish Meteorological and Hydrological Institute (SMHI) in Norrköping, Sweden (1-3 April 2025). The purpose of the workshop was to bring together product developers, operational users and training experts from around the world to develop standards for RGB composites. Over 30 participants from 15 different countries participated in the event, during which the international community came together to define standard RGB recipes for the current suite of geostationary and polar-orbiting satellites and settle on appropriate names. The Fire Temperature RGB and Day Fire RGB – developed at CIRA – as well as the Blowing Snow RGB, Sea Spray RGB and CVD Dust RGB (developed by Bill Line at NOAA) are now internationally recognized RGB composites. CIRA’s flagship product, GeoColor, was the most talked about product at the Workshop, in part because European and African weather services are now using GeoColor from Meteosat Third Generation satellites for the first time. A final report on the outcomes of the workshop is forthcoming, and will be posted on the World Meteorological Organization (WMO) website. C. Seaman and B. Connell comprised ⅔ of the American participation in the workshop, with Chris Smith (CISESS) as the third due to restrictions on federal travel. (POC: C. Seaman and B. Connell, CIRA; curtis.seaman@colostate.edu; bernie.connell@colostate.edu) Funding: GEO/GOES-R and LEO/JPSS.