Meteosat Second Generation take images at more wavelengths and at shorter intervals than its predecessor, making it particularly suitable for short-term forecasting of sudden troublesome weather phenomena, such as snow, thunderstorms and fog. Meteosat data is of unique value to nowcasting of high impact weather in support of safety of life and property. It has been shown to improve weather forecasts and severe weather warnings which, in turn helps limit damage to property and benefits industry e.g. transport, agriculture and energy.

MSG is a joint project between ESA and EUMETSAT. The project consists of four satellites and a ground segment. ESA was responsible for designing and developing the first satellite, and for procuring the other two on behalf of EUMETSAT. EUMETSAT was responsible for defining the payload based on user needs, procuring the ground segment and launchers, and operating the system.

At any one time, two MSG satellites will be functional in geostationary orbit, the operational one being at 0° longitude which is above equatorial west Africa, the other being on stand-by with 10° of separation.