Towards a Definition for Extreme Weather Events in Rio de Janeiro City

Extreme weather events is a new area of research that has recently attracted the attention of researchers from different disciplines. In this paper, we investigate the phenomena from a data-driven forecast standpoint for severe rainfall occurring in the city of Rio de Janeiro. We aim at a formal definition for the phenomena that can clarify its concept and help drive the research. Our initial result is a characterization of the problem inspired by a reformulation of a numerical model based forecast framework.