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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M2 Solar Flare (R1 Minor Radio Blackout) with CME | Tuesday, February 10, 2015 - 14:39 | |
M1 flare (R1 - Minor Radio Blackout) at 0514 UTC on 22 April, 2022 | Friday, April 22, 2022 - 06:06 | |
M-class flares 3-4 May, 2022 | Wednesday, May 4, 2022 - 14:03 | |
M-class Flares (R1-R2; Minor-Moderate) Events Remain Likely 13-15 Feb | Monday, February 13, 2023 - 22:25 | |
Low Solar Activity Likely 20-22 Oct | Friday, October 20, 2023 - 18:41 |