Global Flood Awareness System

Acronym: CEMS-GloFAS


The Global Flood Awareness System (GloFAS), jointly developed by the European Commission and the European Centre for Medium-Range Weather Forecasts (ECMWF), is part of the Copernicus Emergency Management Service (Copernicus EMS). GloFAS provides added value, complementary flood forecast information which is updated daily. Forecast information includes gridded hydro-meteorological data such as accumulated forecasted precipitation, probabilistic predicted discharge, threshold exceedances and forecasted hydrographs at gauging locations. GloFAS data is publicly available (registration required).

The data are open access (registration required) and and can be viewed on Future developments include OGC compliant web services and a data store to access and download the data.


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Datasets (9)

DATASET | Last updated:
LISFLOOD static and parameter maps for GloFAS

The LISFLOOD static and parameter maps for GloFAS contain all gridded input maps (except for the meteorological forcings) that are required to run the spatially distributed hydrolo...

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GloFAS: probabilistic precipitation forecast

This data set shows for the whole globe the probability [%] of accumulated precipitation exceeding 50, 150 and 300 mm over the entire forecast range of 10 days. This is based on th...

DATASET | Last updated:
GloFAS: accumulated precipitation forecast

This data set shows for the whole globe the accumulated amount of precipitation [mm] for the next 10 days, based on the median of the ECMWF ensemble forecast. The update frequency ...

DATASET | Last updated:
GloFAS: major river basins

This shapefile shows the delineation of the major river basins world-wide. Source: Global Runoff Data Centre (GRDC). For more technical details see This layer is prov...

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GloFAS: lakes and reservoirs

This shapefile shows all lakes and reservoirs that have a: - lake surface area > 100 km²; - significant impact on the river discharge; - reservoir capacity > 0.5 km² This layer i...

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GloFAS: flood reporting points

This data set contains key locations at which the GloFAS flood forecast shows a high probability of exceeding the 2-, 5- and 20-year return period (three separate layers). Addition...

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GloFAS: flood hazard map (100 year return period)

This data set shows on a 100-resolution the inundated areas for flood events with a return period of 100-years, based on GloFAS climatology. Permanent water bodies were derived fro...

DATASET | Last updated:
GloFAS: seasonal outlook

This data set composes of three separate layers, each providing a global seasonal outlook on flow anomalies and their probability of occurrence; one at predefined locations, one fo...

DATASET | Last updated:
GloFAS: ECMWF-ENS based probabilistic flood forecast

This data set composes of two separate layers, each showing a probabilistic flood forecast on a global scale based on the ECMWF-ENS. Each layer shows the number of ensembles above ...

Additional information

Published by
European Commission, Joint Research Centre
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