The World Meteorological Organization (WMO) is an international organization is that in the 1950's was created, though the document its establishment in 1947 had been signed. This organization is actually the successor of the organization of Meteorology International Meteorological Organization), WHO in 1873 created. was. The organization in 1951 in the category of specialized agencies affiliated to the United Nations in the field of weather, hydrology (climatology Applied) Sciences and geophysical revenue. The number of members of this organization, now 189 member state and the territory under the territory and is headquartered in Geneva, Switzerland.