Advancing global NWP through international collaboration

Probabilities: 24hr total precipitation

Base Time: Sun 18 Apr 2021 12 UTC T+24 Valid time: Mon 19 Apr 2021 12 UTC

Probabilities: 24h precipitation

The plot shows probability information derived from the ensemble forecast system (ENS), specifically the Probability of 24-h accumulated precipitation (rain and snow) exceeding 1 mm (colour shading in %).
The probabilities are based on the number of forecast members which meet the criteria (each member is assigned an equal probability of 1/50).

Detailed description of ENS probabilistic products can be found in ECMWF Forecast User Guide.

View all charts

Maelstrom blog banner

Large-scale machine learning applications for weather and climate

The machine learning for scalable meteorology and climate (MAELSTROM) project began in April 2021. Peter Dueben, project coordinator, talks about its aims and the importance of co-design projects for concerted developments of applications, software, and hardware design.

12 April 2021

Wind turbines and solar panels

Data to inform policy-making: discussing climate challenges with Spain

The latest climate projections for the coming decades are now available in the Climate Data Store of the Copernicus Climate Change Service (C3S). A special event for decision-makers in Spain explored how such C3S climate data can help drive solutions for water and energy sectors.

6 April 2021

Earth system diagram

Fact sheet: Earth system modelling at ECMWF

ECMWF’s Earth system model aims to represent interactions between as many Earth system components as required, at the necessary level of complexity and as initialised by data assimilation, to achieve the Centre’s forecasting goals.

8 March 2021

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.


Highlighted tweet

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


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.

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.