World Meteorological Organization (WMO) | IAS Target IAS Target

World Meteorological Organization (WMO)

The World Meteorological Organization (WMO) is an intergovernmental organization and was appointed as a specialized agency of the United Nations. WMO followed on from the International Meteorological Organization, founded in 1873, a non-governmental organization. Reforms of status and structure were introduced from the 1930s, culminating in the World Meteorological Convention (WMO).

Formation 23 March 1950
Membership 193
Headquartered Geneva, Switzerland
Parent organization United Nations Economic and Social Council
  • WMO Public website
  • WMO for Youth
  • WMO Bulletin (twice annually)
  • WMO Greenhouse Gas Bulletin (annually)
  • WMO Statements on the Status of the World Climate (annually)

The World Meteorological Day is held annually on 23 March

Theme: “The Sun, the Earth and the weather”
The theme of this year also sits in perfectly with the next cycle of the Sun’s activity beginning in 2020, also known as the Solar Cycle 25.


The World Meteorological Congress The supreme body of the Organization, determines policy. Each member of state and territory is represented by a Permanent Representative with WMO when Congress meets every four years.
Congress elects
  • appoints the Secretary-General
  • the President and Vice-Presidents of the Organization
  • members of the Executive Council
The Executive Council (EC) Implements Congress decisions
The Secretariat It is an eight-department organization with a staff of 200 administered by a Secretary-General, who can serve a maximum of two four-year terms.

The annually published WMO Statements on:

  • the status of the World Climate provides details of global, national and regional temperatures
  • It also provides information on long-term climate change indicators including atmospheric concentrations of greenhouse gases, sea level rise, and sea ice extent.
  • The year 2016 was the hottest year on record, with many weather and climate extremes, reported by WMO

WMO Strategic Plan

  • Disaster risk reduction
  • The WMO Integrated Global Observing System (WIGOS)
  • Aviation meteorological services
  • The Global Framework for Climate Services (GFCS)
  • Polar and high mountain regions
  • Capacity development