Previous SWPC news items.
NOAA Scales mini
HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales
Navigation: Low-frequency navigation signals degraded for brief intervals.
News Archive
News Archive
Originally Posted | ||
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Production Systems Alternate Server Site Test on 5 March, 2018 | Wednesday, February 28, 2018 - 19:03 | |
R1 (Minor Radio Blackout) Event on 9 November, 2021 | Tuesday, November 9, 2021 - 22:14 | |
R1 (Minor) Event on 4 Nov and subsequent Coronal Mass Ejection **UPDATE** | Thursday, November 5, 2015 - 04:53 | |
R1 (Minor) HF Radio Blackout Event on 31 May, 2023 | Wednesday, May 31, 2023 - 23:17 | |
R1 (Minor) Radio Blackout Conditions Observed - 13 June 2022 | Monday, June 13, 2022 - 09:42 |