Study of generalized distribution to extreme value the region of Moreilândia-PE. Elias Silva de Medeiros - CCT, UEPB/PB 1 2 Isaac Pereira Santos - CCT, UEPB/PB 1 Lourivaldo Mota Lima - CCT, UEPB/PB1 Ricardo Alves de Olinda - CCT, UEPB/PB1 Abstract: Rare or extreme events have great importance in Climatology and Hydrology and its probabilistic estimations are indispensable for the planning and development of activities which are subject to its adverse effects. Keywords: extreme events, Climatology, probabilistic estimations. 2 Contact: [email protected]