News

map showing gridded values across Czechia, Poland and Slovakia, with darker purple and pink bands indicating higher concentrations and blue areas indicating lower values.

9 km free and open data offers a step change in localised forecasts

ECMWF has made a subset of its highest-resolution 9 km forecast data free and open, offering more accurate local forecasts and expanding access to weather information worldwide.
Global map showing atmospheric dust concentrations, with the highest levels over the Sahara, Arabian Peninsula, and parts of South and Central Asia, and plumes extending across the Atlantic and Indian oceans.

ECMWF introduces AIFS-COMPO, a new AI system for atmospheric composition forecasting

New experimental charts offer a first look at 10-day machine-learning forecasts of aerosols and reactive gases.

Green and blue Brussels Climate week logo on white background with the ECMWF logo and dates 12 to 16 October 2026

ECMWF at Brussels Climate Week

At Brussels Climate Week 2026, ECMWF will engage with policymakers, industry leaders and partners to explore how European collaboration, scientific innovation and trusted data can help anticipate and prepare for climate risks.
Final day code for earth banner on blue background

Code for Earth Final Day 2026 showcases open-source solutions for weather and climate challenges across Europe and Africa

The 2026 Code for Earth innovation programme concludes, with 14 teams from Europe and Africa presenting their open-source projects developed with ECMWF and partner organisations.
Cover of the CAMS Atmosphere Watch 2026 report, showing a stylised blue world map with the title “CAMS Atmosphere Watch” and a subtitle referring to ozone, wildfire smoke and dust plumes.

New Copernicus publication highlights transboundary nature of ozone pollution, wildfire smoke and desert dust

Atmosphere Watch, a new publication from the Copernicus Atmosphere Service, provides a comprehensive overview of ground-level ozone, desert dust and wildfire smoke in 2026 to date.
Crystal award trophy with the EPSA logo engraved on the front, displayed against a blurred background, with gold confetti falling along one side.

ECMWF recognised at prestigious EPSA awards

ECMWF has received a prestigious European Public Sector Award for its Copernicus Climate and Atmosphere Data Stores.
Globe showing near-surface air temperatures across Europe, Africa and the North Atlantic, with warmer conditions in orange and red and colder regions in blue and green.

ERA5T reanalysis data now available for direct delivery to users

ERA5T reanalysis data can now be ordered for automatic delivery through ECMWF’s Product Requirements Catalogue.
Graphic promoting the 2026 HPCwire Readers’ Choice Awards, with ECMWF encouraging votes in three categories: Best Use of HPC/AI in Physical Sciences, Best HPC/AI Response to Societal Plight, and Best HPC/AI Collaboration.

ECMWF and European Partners nominated for 2026 HPC Wire Awards

ECMWF and partners have been shortlisted in the 2026 HPCwire Readers’ Choice Award, recognising European collaboration in AI, high-performance computing, weather forecasting and climate science.
Blue background with Europe outline and ECMWF logo with white text 'at the EMS annual meeting 6-11 September 2026'

ECMWF at the EMS Annual Meeting 2026

We are participating in the EMS Annual Meeting from 6 to 11 September. Find out which sessions our staff are involved in as speakers, poster presenters and conveners.
Cover of ECMWF Newsletter 188 (Summer 2026) featuring a coloured weather data map background and headlines on ocean data assimilation, European heatwaves, data-driven Earth system models, forecast model parameters, and Bologna data centre network architecture.

Summer 2026 Newsletter published

The summer 2026 ECMWF Newsletter is available to read.
Jørn Kristiansen stood in front of a wall

Dr Jørn Kristiansen begins role as Deputy Director-General and Director of Forecasts

Dr Jørn Kristiansen joins ECMWF as Deputy Director-General and as Director of Forecasts., bringing more than two decades of experience in forecasting, innovation and user-focused weather services.
Atos HPC system in Data Hall 1 of ECMWF's data centre.

High-performance computing at ECMWF

High-performance computing supports ECMWF’s forecasting and research, providing the power needed to run weather models, process observations, train AI systems, and store vast quantities of data.
Massimo Bonavita sat at a table in front of books

Helping forecasts start in the right place

After 17 years at ECMWF, Massimo Bonavita looks back on advances in data assimilation and ahead to the role of machine learning in weather forecasting.
ECMWF Member and Co-operating states on blue background

ECMWF strengthens collaboration through Member State visits in early 2026

Member and Co-operating States are at the heart of ECMWF. Regular visits foster collaboration, provide valuable feedback, and help shape future scientific and operational developments.
Blue sky with a thick white fluffy cloud

Applications open for ECMWF's January 2027 in-person training courses

Applications are open for three ECMWF training courses in Reading, covering data assimilation, satellite observations and forecast products through expert-led lectures and practical sessions.
Cover image of CAMS European air quality report 2025 with light yellow background and a circle covered in dots. Logos for the EU, Copernicus, CAMS and ECMWF at the bottom

Copernicus report shows continued air quality improvements across Europe

A new Copernicus Atmosphere Monitoring Service report shows improving air quality across Europe driven by lower emissions, while highlighting how weather conditions can amplify pollution from transport, industry, heating and other sources.
Blue background with ECMWF logo on and white text that reads "event highlights june-july 2026"

ECMWF events bring global communities together

A series of major events brought together hundreds of users, experts and partners to exchange knowledge and shape future services.
Polar map centred on Antarctica showing geopotential height at 50 hPa during a stratospheric polar-vortex split event. Two dark purple vortex centres flank Antarctica, with tightly packed contour lines indicating strong gradients. Colours transition from pale orange to deep purple, highlighting the split structure of the Antarctic polar vortex.

Machine learning opens new opportunities for global reanalysis

A prototype machine-learning reanalysis trained directly on observations reconstructs more than four decades of atmospheric conditions, opening new possibilities for future reanalysis production.
Aerial view of a dry riverbed winding through an arid landscape in East Africa, with sparse vegetation and settlements lining both sides, highlighting severe drought conditions.

ECMWF opens Call for Proposals for SEWA regional pilots on impact-based forecasting in Africa

Regional pilot projects will help strengthen preparedness for hazardous weather and climate-related events across Africa.