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Probabilistic forecast information was obtained by blending information from 1) ensemble nowcasts of precipitation obtained from the pan-European OPERA rdar radar network, 2) ensemble precipitation forecasts from the ECMWF medium range numerical weather prediction model. The blending is performed each hour when new radar information is available and using the latest available ECMWF forecasts. A flash flood impact product was developed by combining probabilistic forecasts of flash flood hazard (which were developed in the forerunner SMUFF project) with a static dataset of exposure. The exposure dataset was created from open access pan-European data of population and critical infrastructure. More information about these products is given in pages related to each TAMIR layer.
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