A
| Afghanistan | Afghan Meteorological Authority |
| Albania | The Hydrometeorological Institute |
| Algeria | Office National de la Météorologie |
| Angola | Instituto Nacional de Hidrometeorología e Geofísica |
| Antigua and Barbuda | Meteorological Services |
| Argentina | Servicio Meteorológico Nacional |
| Armenia | Armenian State Hydrometeorological and Monitoring Service |
| Australia | Bureau of Meteorology |
| Austria | Central Institute for Meteorology and Geodynamics |
| Azerbaijan | National Hydrometeorological Department |
B
| Bahamas | Department of Meteorology |
| Bahrain | Bahrain Meteorological Service |
| Bangladesh | Bangladesh Meteorological Department |
| Barbados | Meteorological Services |
| Belarus | Department of Hydrometeorology |
| Belgium | Institut Royal Météorologique |
| Belize | National Meteorological Service |
| Benin | Service Météorologique National |
| Bhutan | Council for Renewable Natural Resources Research |
| Bolivia (Plurinational State of) | Servicio Nacional de Meteorología e Hidrología |
| Bosnia and Herzegovina | Meteorological Institute |
| Botswana | Botswana Meteorological Services |
| Brazil | Instituto Nacional de Meteorologia |
| Brunei Darussalam | The Brunei Meteorological Service |
| Bulgaria | National Institute of Meteorology and Hydrology |
| Burkina Faso | Direction de la Météorologie |
| Burundi | Institut Géographique du Burundi |
C
| Cambodia | Department of Meteorology |
| Cameroon | Direction de la Météorologie Nationale |
| Canada | Meteorological Service of Canada |
| Cabo Verde | Instituto Nacional de Meteorologia e Geophísica |
| Central African Republic | Direction Générale de l'Aviation Civile et de la Météorologie |
| Chad | Direction des Ressources en Eau et de la Météorologie |
| Chile | Dirección Meteorológica de Chile |
| China | China Meteorological Administration |
| Colombia | Instituto de Hidrología, Meteorología y Estudios Ambientales |
| Comoros | Direction de la Météorologie Nationale |
| Congo | Direction de la Météorologie Nationale |
| Cook Islands | Cook Islands Meteorological Service |
| Costa Rica | Instituto Meteorológico Nacional |
| Côte d'Ivoire | Direction de la Météorologie Nationale |
| Croatia | Meteorological and Hydrological Service |
| Cuba | Instituto de Meteorología |
| Cyprus | Meteorological Service |
| Czech Republic | Czech Hydrometeorological Institute |
D
| Democratic People's Republic of Korea | State Hydrometeorological Administration |
| Democratic Republic of the Congo | Agence Nationale de Météorologie et de Télédétection par Satellite |
| Denmark | Danish Meteorological Institute |
| Djibouti | Service de la Météorologie |
| Dominica | Dominica Meteorological Services |
| Dominican Republic | Oficina Nacional de Meteorologiá |
E
| Ecuador | Instituto Nacional de Meteorología e Hidrología (INAMHI) |
| Egypt | The Egyptian Meteorological Authority |
| El Salvador | Servicio Nacional de Estudios Territoriales |
| Eritrea | Civil Aviation Authority |
| Estonia | Estonian Meteorological and Hydrological Institute |
| Eswatini | Eswatini Meteorological Service |
| Ethiopia | National Meteorological Services Agency |
F
| Fiji | Fiji Meteorological Service |
| Finland | Finnish Meteorological Institute |
| France | Météo-France |
G
| Gabon | Direction de la Météorologie Nationale |
| The Gambia | Department of Water Resources |
| Georgia | Department of Hydrometeorology |
| Germany | Deutscher Wetterdienst |
| Ghana | Ghana Meteorological Services Department |
| Greece | Hellenic National Meteorological Service |
| Guatemala | Instituto Nacional de Sismología, Vulcanología, Meteorologiá e Hidrología |
| Guinea | Direction Nationale de la Météorologie |
| Guinea-Bissau | Météorologie de Guinée Bissau |
| Guyana | Hydrometeorological Service |
H
| Haiti | Centre national de météorologie |
| Honduras | Servicio Meteorológico Nacional |
| Hungary | Meteorological Service of Hungary |
I
| Iceland | Icelandic Meteorological Office |
| India | India Meteorological Department |
| Indonesia | Meteorological and Geophysical Agency |
| Iran, Islamic Republic of | Islamic Republic of Iran Meteorological Organization |
| Iraq | Iraqi Meteorological Organization |
| Ireland | The Irish Meteorological Service |
| Israel | Israel Meteorological Service |
| Italy | Servizio Meteorologico |
J
| Jamaica | Meteorological Service |
| Japan | Japan Meteorological Agency |
| Jordan | Jordan Meteorological Department |
K
| Kazakhstan | Kazhydromet |
| Kenya | Kenya Meteorological Department |
| Kiribati | Kiribati Meteorological Service |
| Kuwait | Department of Meteorology |
| Kyrgyzstan | Main Hydrometeorological Administration |
L
| Lao People's Democratic Republic | Department of Meteorology and Hydrology |
| Latvia | Latvian Environment, Geology and Meteorology Agency |
| Lebanon | Service Météorologique |
| Lesotho | Lesotho Meteorological Services |
| Liberia | Ministry of Transport |
| Libya | Libyan National Meteorological Centre |
| Lithuania | Lithuanian Hydrometeorological Service |
| Luxembourg | Administration de l'Aéroport de Luxembourg |
M
| Madagascar | Direction Générale de la Météorologie |
| Malawi | Malawi Meteorological Services |
| Malaysia | Malaysian Meteorological Department |
| Maldives | Department of Meteorology |
| Mali | Direction Nationale de la Météorologie du Mali |
| Malta | Meteorological Office |
| Mauritania | Office National de Météorologie |
| Mauritius | Mauritius Meteorological Services |
| Mexico | Servicio Meteorológico Nacional |
| Micronesia, Federated States of | FSM Weather Station |
| Moldova | Serviciul Hidrometeorologic de Stat Moldova |
| Monaco | Mission Permanente de la Principauté de Monaco |
| Mongolia | National Agency for Meteorology, Hydrology and Environment Monitoring |
| Montenegro | Hydrometeorological Institute of Montenegro |
| Morocco | Direction de la Météorologie Nationale |
| Mozambique | Instituto Nacional de Meteorologia |
| Myanmar | Department of Meteorology and Hydrology |
N
| Namibia | Namibia Meteorological Service |
| Nepal | Department of Hydrology and Meteorology |
| Netherlands (the) | Royal Netherlands Meteorological Institute |
| New Zealand | New Zealand National Meteorological Service |
| Nicaragua | Dirección General de Meteorología |
| Niger | Direction de la Météorologie Nationale |
| Nigeria | Nigerian Meteorological Agency |
| Niue | Niue Meteorological Service |
| Norway | Norwegian Meteorological Institute |
O
P
| Pakistan | Pakistan Meteorological Department |
| Panama | Hidrometeorología |
| Papua New Guinea | Papua New Guinea Meteorological Service |
| Paraguay | Dirección de Meteorología e Hidrología |
| Peru | Servicio Nacional de Meteorología e Hidrología |
| Philippines | Philippine Atmospheric Geophysical and Astronomical Services Administration |
| Poland | Institute of Meteorology and Water Management |
| Portugal | Instituto de Meteorologia |
Q
| Qatar | Civil Aviation Authority |
R
| Republic of Korea | Korea Meteorological Administration |
| Romania | National Meteorological Administration |
| Russian Federation | Russian Federal Service for Hydrometeorology and Environmental Monitoring |
| Rwanda | Rwanda Meteorological Agency |
S
| Saint Lucia | Meteorological Services |
| Samoa | Samoa Meteorology Division |
| Sao Tome and Principe | Institut National de Météorologie |
| Saudi Arabia | Presidency of Meteorology and Environment |
| Senegal | Direction de la Météorologie Nationale |
| Serbia | Republic Hydrometeorological Service of Serbia |
| Seychelles | National Meteorological Services |
| Sierra Leone | Meteorological Department |
| Singapore | Meteorological Services Division |
| Slovakia | Slovak Hydrometeorological Institute |
| Slovenia | Meteorological Office |
| Solomon Islands | Solomon Islands Meteorological Service |
| Somalia | Permanent Mission of Somalia |
| South Africa | South African Weather Service |
| South Sudan | South Sudan Weather Service |
| Spain | Agencia Estatal de Meteorología |
| Sri Lanka | Department of Meteorology |
| Sudan | Sudan Meteorological Authority |
| Suriname | Meteorological Service |
| Sweden | Swedish Meteorological and Hydrological Institute |
| Switzerland | MeteoSwiss |
| Syrian Arab Republic | Ministry of Defence Meteorological Department |
T
| Tajikistan | Main Administration of Hydrometeorology and Monitoring of the Environment |
| Thailand | Thai Meteorological Department |
| Timor-Leste, Democratic Republic of | Dirrecão Nacional Meteorologia e Geofisica |
| The former Yugoslav Republic of Macedonia | Republic Hydrometeorological Institute |
| Togo | Direction de la Météorologie Nationale |
| Tonga | Tonga Meteorological Service |
| Trinidad and Tobago | Meteorological Service |
| Tunisia | National Institute of Meteorology |
| Türkiye | Turkish State Meteorological Service |
| Turkmenistan | Administration of Hydrometeorology |
| Tuvalu | Tuvalu Met Service |
U
| Uganda | Department of Meteorology |
| Ukraine | Ukrainian Hydrometeorological Center |
| United Arab Emirates | National Center for Meteorology and Seismology |
| United Kingdom of Great Britain and Northern Ireland | Met Office |
| United Republic of Tanzania | Tanzania Meteorological Agency |
| United States of America | National Oceanic and Atmospheric Administration |
| Uruguay | Dirección Nacional de Meteorología |
| Uzbekistan | Uzhydromet |
V
| Vanuatu | Vanuatu Meteorological Services |
| Venezuela, Bolivarian Republic of | Instituto Nacional de Meteorología e Hidrología |
| Viet Nam | Hydrometeorological Service |
Y
Z
Territories
| British Caribbean Territories | Caribbean Meteorological Organization |
| French Polynesia | Météo-France Polynesie Francaise |
| Hong Kong, China | Hong Kong Observatory |
| Macao, China | Meteorological and Geophysical Bureau |
| Curaçao and Sint Maarten | Meteorological Service |
| New Caledonia | Météo-France Nouvelle Calédonie |
