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
Originally Posted | ||
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CMEs arrived on 11 Aug and Passage Continues - G4 (Severe) Reached | Monday, August 12, 2024 - 16:19 | |
Severe (G4) Geomagnetic Storms Observed - 12 Aug 2024 | Monday, August 12, 2024 - 06:01 | |
Solar Cycle 25 Likely Reached the Highest Sunspot Number in over 20 Years | Friday, August 9, 2024 - 18:27 | |
R3 (Strong) Radio Blackout Observed 08 Aug | Thursday, August 8, 2024 - 20:42 | |
Space Weather Weekend Outlook Forecast for 9-11 August | Thursday, August 8, 2024 - 15:35 |