• Algeria, Office National de la Météorologie.

• Armenia, Department of Hydrometeorology of the Republic of Armenia(Armhydromet)

• Argentina, Servicio Meteorológico Nacional

• Australia, Bureau of Meteorology, Melbourne, Victoria

• Austria, Central Institute for Meteorology and Geodynamics

• Azerbaijan, State Hydrometeorological Committee of the Azerbaijan Republic

• Belgium, The Royal Meteorological Institute of Belgium

• Bulgaria, National institute of Meteorology and Hydrology

• Brazil, Instituto Nacional de Meteolorogia (INMET)

• Brunei, The Brunei Meteorological Service

• Belize, National Meteorological Service

• Canada, Meteorological Service of Canada

• Chile , Direccion Meteorologica de Chile

• China , The China Meteorological Administration

• Colombia , Institute of Hydrology, Meteorology and Environment Studies

• Costa Rica, Instituto Meteorológico Nacional

• Croatia , Meteorological and Hydrological Service

• Cuba, Instituto de Meteorología

• Czech Republic, Czech Hydrometeorological Institute

• Denmark, The Danish Meteorological Institute

• Ecuador, Instituto Nacional de Meteorología e Hidrología

• Egypt, Egyptian Meteorological Authority

• Fiji, Fiji Meteorological Service

• Finland, The Finnish National Weather Service, The Finnish Meteorological Institute

• France, Météo-France, Toulouse

• Germany, The Deutscher Wetterdienst, Offenbach

• Hong Kong, China, Hong Kong Observatory

• Hungary, Hungarian Meteorological Service

• Iceland, The Icelandic Meteorological Office

• India, India Meteorological Department

• Indonesia, Indonesian Meteorological and Geophysical Agency

• Iran, Islamic Republic Of Iran Meteorological Organization

• Israel, Israel Meteorological Service

• Italy, Italian Air Force Meteorological Service

• Japan, Japan Meteorological Agency

• Jordan, Jordan Meteorological Department

• Kenya, Kenya Meteorological Department

• Republic of Korea, Korea Meteorological Administration

• Latvia, Latvian Hydrometeorological Agency

• Libya, Libyan Meteorological Department

• Lithuania, Lithuanian Hydrometeorological Service

• Macao, Serviços Meteorológicos de Macau

• Malaysia, Malaysian Meteorological Service

• Mauritius, Mauritius Meteorological Services

• Morocco, Direction de la Météorologie Nationale

• Mexico, Servicio Meteorológico Nacional

• Nepal, Department of Hydrology and Meteorology

• Netherlands, Royal Netherlands Meteorological Institute, DeBilt

• New Zealand, Meteorological Service of New Zealand, Ltd. Wellington

• Norway, Norwegian Meteorological Institute

• Oman, Department of Meteorology

• Pakistan, Pakistan Meteorological Department

• Panamá, Hidro Meteorología, ETESA, República de Panamá

• Paraguay, Dirección de Meteorología e Hidrología del Paraguay

• Peru, Servicio Nacional de Meteorología e Hidrología

• Philippines, PAGASA (The Philippines Atmospheric, Geophysical & Astronomical Services Adm.)

• Poland, Institute of Meteorology and Water Management, (IMGW)

• Portugal, Instituto de Meteorologia

• Romania, National Institute of Meteorology and Hydrology

• Russia, Russian Federal Service for Hydrometeorology and Environment Monitoring

• Samoa, Ministry of Agriculture, Forestry and Meteorology

• Saudi Arabia, Meteorology and Environmental Protection Administration (MEPA)

• Seychelles, Seychelles Meteorological Service

• Singapore, Meteorological Service Singapore, Singapore

• Slovakia, Slovak Hydrometeorological Institute

• Slovenia, Hydrometeorological Institute of Slovenia, Ljubljana

• Solomon Islands, Solomon Islands Meteorological Service

• South Africa, South African Weather Bureau

• Spain, Instituto Nacional De Meteorologia (INM)

• Swaziland, Swaziland Meteorological Service

• Sweden, Swedish Meteorological and Hydrological Institute (SMHI)

• Switzerland, Swiss Meteorological Institute

• Thailand, Meteorological Department of Thailand

• The former Yugoslav Republic of Macedonia, Hydrometeorological Institute

• Turkey, Devlet Meteoroloji Genel Müdürlüðü

• United Kingdom, The Met Office

• Uruguay, Servicio de Oceanografía, Hidrografía y Meteorología de la Armada

• U.S.A., National Weather Service, Silver Spring, Maryland

• Venezuela, Dirección de Hidrología y Meteorología

• Yugoslavia, Federal Hydrometeorological Institute

• Zambia, Zambia Meteorological Department

• Zimbabwe, Department of Meteorological Services