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 | ||
---|---|---|
Severe (G4) Geomagnetic Storms Observed - 24 March 2024 | Sunday, March 24, 2024 - 17:40 | |
Severe and Extreme (G4-G5) Geomagnetic Storms Likely on 12 May 2024 | Saturday, May 11, 2024 - 17:54 | |
Severe Geomagnetic Storming Likely to Continue | Friday, May 10, 2024 - 16:10 | |
Shock Arrival at ACE | Thursday, December 31, 2015 - 01:49 | |
Shock Arrival on 6 Sep at 2308 UTC from 4 September CME | Thursday, September 7, 2017 - 01:04 |