![Planned IFS upgrade to Cycle 48r1 - data assimilation](/sites/default/files/styles/900x/public/2023-04/IFS-48r1-upgrade-2023-v3_690x460px.jpg?itok=sg0Y7LE9)
ECMWF’s next model upgrade to provide better initial conditions for weather forecasts
Cycle 48r1 of ECMWF’s Integrated Forecasting System, which is to become operational this summer, will include extensive changes to the way the initial conditions of weather forecasts are established.