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
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R2 (Moderate) HF Radio Blackout Event on 01 Apr, 2025 | Tuesday, April 1, 2025 - 07:09 |
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S1 (Minor) Storm on 31 March | Monday, March 31, 2025 - 21:17 |
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New Solar Cycle Plots Available! | Monday, March 31, 2025 - 17:55 |
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R3 (Strong) Solar Flare Occurred 28 March, 2025 | Friday, March 28, 2025 - 15:47 |
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G2 (Moderate) Watch Issued for 26 Mar 2025 | Monday, March 24, 2025 - 11:21 |