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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New Experimental US-Canada 1D geoelectric field map | Tuesday, April 4, 2023 - 18:19 |
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R3 (Strong) HF Radio Blackout Event 29 March, 2023 UTC-Day | Wednesday, March 29, 2023 - 03:11 |
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G4 (Severe) Geomagnetic Storm Alert on 24 March UTC-Day | Friday, March 24, 2023 - 04:41 |
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G3 (Strong) Geomagnetic Storming Observed 23 March, 2023 | Thursday, March 23, 2023 - 16:59 |
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G1-G2 (Minor-Moderate) Geomagnetic Storm Watches 23-25 March, 2023 | Tuesday, March 21, 2023 - 23:57 |