The Geostationary Operational Environmental Satellite-S Series (GOES-S) is the second of the next generation of geostationary weather satellites. The four satellites of the series will provide advanced imaging with increased spatial resolution and faster coverage for more accurate forecasts, real-time mapping of lightning activity, and improved monitoring of solar activity. GOES-S will provide continuous imagery and atmospheric measurements of the Western Hemisphere. GOES-S will be the primary tool for the detection and tracking of hurricanes and severe weather. Once operational as GOES-17, the satellite wil replace GOES-15 satellite.