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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M6 Flare (R2-Moderate) Occurred 14 December, 2022 at 1442 UTC | Wednesday, December 14, 2022 - 16:09 | |
M9 Flare (R2 - Moderate Radio Blackout) on 21 April, 2022 | Thursday, April 21, 2022 - 04:17 | |
M9 Flare (R2 - Moderate Radio Blackout) on 31 March, 2022 | Thursday, March 31, 2022 - 19:34 | |
M9 Flare (R2-Moderate) Event on 16 May, 2023 | Tuesday, May 16, 2023 - 18:11 | |
Mercury to Transit the Sun on 9 May | Thursday, May 5, 2016 - 20:07 |