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Message from M. Jarraud, Secretary-General of the World Meteorological Organization Every year, on 23 March, the World Meteorological Organization (WMO), its 187 Members and the worldwide meteorological community celebrate World...
Records of ancient civilizations contain innumerable references to weather and climate and rudimentary but ingenious instruments were devised by different cultures to observe the basic meteorological parameters, often in conjunction with astronomy and astrology.
Every year, the World Meteorological Organization (WMO) and the international meteorological community celebrate World Meteorological Day, commemorating the coming into force of the WMO Convention on 23 March 1950, precisely 30 days after the date of deposit of the 30th instrument of ratification or accession by Members.
Every year on 23 March, the World Meteorological Organization (WMO) and the international meteorological community join in celebrating World Meteorological Day, to commemorate the coming into force of the WMO Convention on 23 March 1950, precisely 30 days after the day when the thirtieth instrument of ratification of the Convention was deposited by countries wishing to join the new Organization.
Every year, the 23rd of March, the World Meteorological Organization (WMO) and the international meteorological community join efforts to celebrate the World Meteorological Day, commemorating the coming into force in 1950 of the WMO Convention through which WMO assumed the previous responsibilities of the International Meteorological Organization (IMO), established in 1873 to foster international collaboration in meteorology for the protection of life and property.
World Meteorological Day was established in 1960 to make the work of National Meteorological and Hydrological Services better known and appreciated by the public of all countries.