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High resolution mean sea level pressure and ensemble spread

Base Time: Wed 16 Jun 2021 12 UTC T+96 Valid time: Sun 20 Jun 2021 12 UTC

Ensemble forecasts explained
One 'ensemble forecast' consists of 51 separate forecasts made by the same computer model, all activated from the same starting time. The starting conditions for each member of the ensemble are slightly different, and physical parameter values used also differ slightly. The differences between these ensemble members tend to grow as the forecasts progress, that is as the forecast lead time increases.

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NEWS
NEWS

Saildrone to help ECMWF understand the Gulf Stream

ECMWF is to ingest data from Saildrone uncrewed surface vehicles (USVs) later this year to improve our understanding of the behaviour of the Gulf Stream and its influence on weather. Up to six solar-powered USVs will cover a part of the Gulf Stream that is crucial for forecasts.

8 June 2021
IN FOCUS

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In focus

Articles presenting ECMWF’s involvement in diverse areas and fact sheets on topics including ocean wave forecasting, Earth system modelling and data assimilation, reanalysis, and ECMWF's use of satellite observations.

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.

UEF2021-montage

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Do you use ECMWF products and services? Come and share your experiences at our annual user meeting #UEF2021, taking place virtually 1-4 June. https://events.ecmwf.int/e/UEF2021

Datasets

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.

Accessing forecasts

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

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.

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

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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.