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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1 - 4 September Geomagnetic Storming Summary | Monday, September 5, 2016 - 15:40 |
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***UPDATE*** G1 (Minor) storm likely/ CME arrival expected next 12-18 hours | Tuesday, November 10, 2015 - 07:27 |
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(Updated) G2 Watch issued for 14 Apr 2022. G1 Watch added for 15 Apr 2022 | Monday, April 11, 2022 - 22:20 |
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(UPDATE) G1 (Minor) and G2 (Moderate) Storm Watches for 3 - 4 November, 2021 | Tuesday, November 2, 2021 - 22:55 |
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G2 (Moderate) Geomagnetic Storm Conditions Observed | Saturday, September 3, 2016 - 06:06 |