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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CME analysis in progress | Tuesday, September 5, 2017 - 02:59 |
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CME Arrival as Expected on 31 December, 2024 | Tuesday, December 31, 2024 - 17:05 |
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CME Arrival at Earth has Occurred and Warnings have been Issued | Thursday, October 10, 2024 - 15:52 |
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CME Arrival at Earth Occurred about 5pm EDT on Sep 1, 2025 | Monday, September 1, 2025 - 21:20 |
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CME Arrival Led to G1-G2 (Minor-Moderate) Storm Levels | Monday, October 7, 2024 - 14:22 |