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Space Weather Prediction Center

06/21/2026 | News release | Distributed by Public on 06/21/2026 15:50

R2 Event on 31 June from AR 4473

AR 4473 produced an M6.8 flare with an associated Type II radio sweep with an estimated speed of 380 km/s, indicating a possible subsequent CME. Analysis will begin as coronagraph imagery becomes available, but given the source location an Earth-directed component is unfavorable. A chance (40%) for additional M-class flare activity from Regions 4472 and 4473 will persist for the current three day outlook.

Space Weather Prediction Center published this content on June 21, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on June 21, 2026 at 21:50 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]

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