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S4 (Severe) Solar Radiation Storm in Progress | Hacker News Reader

S4 (Severe) Solar Radiation Storm in Progress

swpc.noaa.gov

12 points·uticus··2 comments

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https://www.ieso.ca/Sector-Participants/RSS-Feeds/Day-0-Advi...

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

> This significant level has not been observed since October, 2003.

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