S4 (Severe) Solar Radiation Storm in Progress(swpc.noaa.gov)
swpc.noaa.gov
S4 (Severe) Solar Radiation Storm in Progress
https://www.swpc.noaa.gov/news/s4-severe-solar-radiation-storm-progress-january-19th-2026
https://www.swpc.noaa.gov/news/s4-severe-solar-radiation-storm-progress-january-19th-2026
https://www.misoenergy.org/markets-and-operations/notificati...
https://www.ercot.com/services/comm/mkt_notices/notices
https://emergencyprocedures.pjm.com/ep/pages/dashboard.jsf