Advancing global NWP through international collaboration

Visibility

Visibility

Base Time: Tue 30 Dec 2025 00 UTC T+0 Valid time: Tue 30 Dec 2025 00 UTC

Predicting near surface visibility is dependent on predicting the correct dynamic and thermodynamic conditions in the boundary layer which can be highly variable. Fog is an extremely important weather hazard, but particularly difficult to predict.

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In focus

In focus

Browse our fact sheets on topics such as Destination Earth and the role of the Copernicus Atmosphere Monitoring Service, and read about some of the opportunities and challenges for ML and weather forecasting.

Forecast charts and data

We provide current forecasts, climate reanalyses and specific datasets. These are available via the web, point-to-point dissemination, data servers and broadcasting.

Charts
Datasets
Quality of our forecasts
Documentation
Access to forecasts
Datasets

Datasets

Forecasts, analyses, climate reanalyses, re-forecasts and multi-model data are available from our archive (MARS) or via dedicated data servers or via point-to-point dissemination.

Access to forecasts

Accessing forecasts

Researchers, WMO members, commercial users and satellite data providers can gain access to ECMWF forecast products under one of our various licence agreement types.

Serving meteorology

International collaboration is fundamental to the work of ECMWF, working with the EU and the meteorological community at large, including the World Meteorological Organization, space agencies, and scientists around the world.

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Contributing to European Programmes

Contributing to European Programmes
Copernicus Climate Change Service (C3S)
Copernicus Atmosphere Monitoring Service (CAMS)
Copernicus Emergency Management Service (CEMS)
Destination Earth
Working with space agencies

Working with space agencies
Observations
Data monitoring
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Supporting WMO programmes

Supporting WMO programmes
World Meteorological Centre
Data archives
Severe weather forecasting

Workshops and education

Education is a key element of our work at ECMWF, enabling our partners to get the most from ECMWF's services and develop an advanced understanding of forecasting.

Training
Workshops
Seminars
Full calendar

ECMWF workshops are open to the worldwide meteorological community, though some training is restricted to member states.

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