The European Flood Awareness System (EFAS) is the first operational European system monitoring and forecasting floods across Europe. It provides probabilistic, flood early warning information up to 10 days in advance to its partners: the National Hydrological Services and the European Response and Coordination Centre (ERCC).

The Operational EFAS consists of four centres executed by different consortia

EFAS Computational centre - European Centre for Medium-Range Weather Forecasts (UK) executes forecasts and hosts the EFAS-Information System platform EFAS Dissemination centre - Swedish Meteorological and Hydrological Institute, Rijkswaterstaat (NL) and Slovak Hydro-Meteorological Institute analyse EFAS on a daily basis and disseminate information to the partners and the ERCC EFAS Hydrological data collection centre - REDIAM (ES) and ELIMCO (ES) collect historic and realtime discharge and water level data across Europe EFAS Meteorological data collection centre – KISTERS AG and Deutscher Wetterdienst collect historic and realtime meteorological data across Europe.

EFAS is an operational service under the umbrella of the Copernicus emergency management service and is fully operational since October 2012.