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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G3 (Strong) Geomagnetic Storm Watch for 23 Mar | Saturday, March 22, 2025 - 04:42 |
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G3 (Strong) Geomagnetic Storm Watch for 31 Dec | Sunday, December 29, 2024 - 21:38 |
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G3 (Strong) Geomagnetic Storm Watch Issued for 02-03 November, G2 (Moderate) Watch for 04 November | Saturday, October 31, 2015 - 19:51 |
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G3 (Strong) Geomagnetic Storm Watch Now in Effect for 11 May | Wednesday, May 10, 2023 - 17:57 |
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G3 (Strong) Geomagnetic Storm Watch now in effect for 31 March, 2022 | Tuesday, March 29, 2022 - 19:14 |