The remnants of Tropical Storm #Mario swept across California from Sept. 17–18, 2025, bringing thunderstorms and heavy rain. Water vapor imagery from NOAA's GOES West (GOES-18) satellite showed the moisture moving into parts of the western U.S. | NOAA Satellite and Information Service

NOAA’s SWFO-L1 satellite is scheduled to launch on Tuesday, Sept. 23. The #CountdownToLaunch is on!🚀 SWFO-L1 carries a suite of new instruments that measure solar wind speed, density, temperature, as well as magnetic field variations in real time to provide better forecasts of incoming space weather than ever before. More: https://www.nesdis.noaa.gov/our-satellites/future-programs/swfo/swfo-instruments #SWFOL1 #SWFOMission #LetsGoSWFO | NOAA Satellite and Information Service