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 Storms Observed on 10 Apr 22 | Sunday, April 10, 2022 - 06:11 |
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G1 (Minor) Geomagnetic Storm Watch For 6-7 Apr | Monday, April 4, 2022 - 19:51 |
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M9 Flare (R2 - Moderate Radio Blackout) on 31 March, 2022 | Thursday, March 31, 2022 - 19:34 |
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G3 (Strong) Geomagnetic Storm Watch remains in effect for 31 Mar | Thursday, March 31, 2022 - 17:17 |
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X2.2/2b Flare (R3 - Strong Radio Blackout) on 17 February 2023 | Wednesday, March 30, 2022 - 18:31 |