World War I in 1918, the Austro-Hungarian army destroyed all the instruments in the observatory. Nedeljković managed to acquire instruments for the new observatory from the war reparations from Germany, not spending the state money. The total value of the instruments he obtained was three times higher than the entire cost of the construction of the new observatory building. Instruments arrived in 1922. In 1924, by the ruling of the Faculty Council the Observatory was divided into two separate institutions: Astronomical Observatory and Meteorological Observatory of Belgrade University. Development In August 1902, the institute began a coded international exchange of weather data and started making its first weather forecasts. Since 1912, the daily Politika began publishing institute's weather reports and forecasts. The meteorology especially developed after Vujović took over the tenure of the meteorological observatory chief in the early 20th century. This was also a period when Milutin Milanković began his work on climatology. At the invitation of the organizers, representatives of the FHMI signed on 22 September 1947 in Washington, a Convention on the establishment of the World Meteorological Organization (WMO). FHMI was one of the 45 world meteorological services, which were founders of WMO. After the FHMI was abolished in April 2003, the RHSS was entrusted as its legal successor with all its responsibilities, especially the international cooperation. References External links Official web-site of the Republic Hydrometeorological Institute of Serbia Governmental meteorological agencies in Europe Research institutes in Serbia 1888 establishments in Europe