Fedor Mesinger, adjunct staff member in ICTP's Weather and Climate Group, has won the European Geophysical Society's Vilhelm Bjerknes Medal. The medal, established in 1995, is given annually to a distinguished researcher in atmospheric science. Mesinger, who was educated and taught for many years at the University of Belgrade, is currently a scientist at the National Center for Environmental Prediction's Environmental Modeling Center (USA). He is an internationally recognised expert in the field of numerical modeling of the atmosphere and, more generally, the science of weather prediction. The Eta Model, for which he was the main architect, is now used for weather prediction at the US National Center for Environmental Modeling in the United States and an increasing number of weather forecast centres around the world. Mesinger will return to ICTP in June for a six-week stay.