European Centre for Medium-Range Weather Forecasts
| Established | 1975 (50 years ago) | 
|---|---|
| Headquarters | Reading | 
| Country | United Kingdom | 
| Coordinates | 51°25′11″N 0°57′03″W / 51.41961°N 0.95081°W | 
| Chief Executives | Florence Rabier | 
| Directors | Florence Rabier | 
The European Centre for Medium-Range Weather Forecasts (ECMWF) is an independent intergovernmental organisation supported by most of the nations of Europe. It is based at three sites: Shinfield Park, Reading, United Kingdom; Bologna, Italy; and Bonn, Germany. It operates one of the largest supercomputer complexes in Europe and the world's largest archive of numerical weather prediction data.