A revolution in geosynchronous meteorological satellite (GEO MetSat) capability is just beginning. 2015 saw the transition to operations of the Japanese Himawari H8 satellite, hosting as a primary instrument the Advanced Himawari Imager (AHI). Soon to follow are US satellites in the GOES-R series with a very similar instrument, the Advanced Baseline Imager – launches beginning in late 2016. And after that MetSats will be launched hosting instruments with similar capabilities from Korea (GEO-KOMPSAT) and Europe (EUMETSAT’s Meteosat Third Generation series).