Advancing global NWP through international collaboration

High resolution mean sea level pressure and ensemble spread

Monday 12 November, 12 UTC T+96 Valid: Friday 16 November, 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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SCIENCE BLOG

Complex mountains and their effects on atmospheric flow

Irina Sandu from ECMWF and Annelize van Niekerk from the UK Met Office discuss their recent work in which kilometre-scale simulations are used to investigate the impact of complex orography on the atmosphere.

5 November 2018
NEWS
NEWS

Metop-C weather satellite launched successfully

The Metop-C weather satellite was successfully launched from Europe’s space port in Kourou, French Guiana, on 7 November 2018. It will help to ensure the continuous supply of crucial data to help initialise numerical weather prediction models for years to come.

7 November 2018
IN FOCUS

Corn harvest destroyed by drought

ECMWF extended-range forecasts and the European heatwave of summer 2018

The heatwave of summer 2018 highlighted the skill and value of our extended-range (sub-seasonal) forecasts. Forming part of ECMWF's seamless prediction system, the extended range falls between the medium- and long-range (seasonal) timescales. Forecasts on the extended-range timescale are scientifically challenging, but skill has been increasing steadily.

1 October 2018

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.

Plot of the week

#Seaice has been very low in the Siberian #Arctic for this time of year, as shown by sea-ice thickness satellite observations. The ECMWF ocean analysis suggests a link with unusually warm ocean temperatures in the region.

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.

Advancing weather science

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 lecture theatre

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

Collaboration banner

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.