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
DAP - temp Head Section
News Archive
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X1.7 and X1.1 Flares Observed on 05 Aug | Monday, August 5, 2024 - 14:12 |
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X1.7 flare (R3-Strong) from Region 4274 | Sunday, November 9, 2025 - 09:14 |
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X1.9 flare (R3-Strong) event | Monday, December 1, 2025 - 03:02 |
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X2 Flare (R3 - Strong Radio Blackout) on 20 April, 2022 UTC-Day | Wednesday, April 20, 2022 - 05:22 |
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X2.2/2b Flare (R3 - Strong Radio Blackout) on 17 February 2023 | Wednesday, March 30, 2022 - 18:31 |