Visibility
Base Time: Wed 24 Apr 2024 00 UTC T+0 Valid time: Wed 24 Apr 2024 00 UTC
Visibility relates to the transparency of the atmosphere, and how far the eye can see. It is affected by many factors, such as mist, fog, dust and haze. Predicting near-surface visibility is very challenging as it depends on the dynamic and thermodynamic conditions in the lowest layers of the atmosphere, and how these interact with surface features like hills, valleys and water bodies. This visibility diagnostic is an experimental product and should be used with caution. Click the middle icon to the bottom right for the (non-linear) visibility scale.
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.
Forecasts, analyses, climate re-analyses, reforecasts and multi-model data are available from our archive (MARS) or via dedicated data servers or via point-to-point dissemination.
Researchers, WMO members, commercial users and satellite data providers can gain access to ECMWF forecast products under one of our various license 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.
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.
ECMWF workshops are open to the worldwide meteorological community, though some training is restricted to member states.