ECMWF is implementing a substantial upgrade of its Integrated Forecasting System (IFS) today. Find out how the upgrade will improve our global weather forecasts and what is different in #IFS46r1, including more continuous #DataAssimilation. https://t.co/xRRRhdBVt2 pic.twitter.com/IsxOMnUVUc

— ECMWF (@ECMWF) June 11, 2019