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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SOLAR-1 Is Now The New Designation for SWFO-L1 | Tuesday, January 27, 2026 - 16:32 |
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Update: G4 (Severe) Geomagnetic Storm Alert Issued | Tuesday, January 20, 2026 - 08:52 |
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G4 (Severe) Geomagnetic Storm Levels Reached 19 Jan, 2026 | Monday, January 19, 2026 - 20:09 |
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S4 (Severe) Solar Radiation Storm in Progress, January 19th, 2026 | Monday, January 19, 2026 - 18:54 |
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G4 (Severe) Geomagnetic Storm Watch for 20 January UTC-Day | Monday, January 19, 2026 - 15:37 |