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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M4 Flare (R1-Minor Radio Blackout) on 28 March, 2022 | Monday, March 28, 2022 - 15:48 | |
M4 Flare (R1-Minor) Event on 20 February, 2023 | Monday, February 20, 2023 - 16:29 | |
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 |