To calculate the flood forecasts EFAS and GloFAS need the hydrological initial conditions for LISFLOOD which are derived from forcing LISFLOOD with gridded, near real-time meteorological (proxy) observations. For EFAS, these are based from a large-number of in-situ meteorological data from various data providers, collected, quality checked and interpolated to a regular grid by CEMS MDCC before being transferred to COMP. For GloFAS, they are based on the Copernicus Climate Change Service atmospheric reanalysis, ERA5 and its timely component, ERA5T.