Neural interpretation of ECMWF ensemble predictions

This study presents a neural system operated since the end of the last century at MeteoSwiss. The neural network firstly performs an automatic classification of weather patterns, secondly apply this classification in order to cluster members provided by the ECMWF Ensemble Forecasting System. Weather elements, quantitative as well as probabilistic, are then derived from the classification and used as basis for the elaboration of middle range forecasts at MeteoSwiss