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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S1 (Minor) Solar Radiation Storm Conditions Observed - 14 July 2017 | Friday, July 14, 2017 - 05:40 | |
S1 (Minor) Solar Radiation Storm Event Began 13 March, 2023 | Tuesday, March 14, 2023 - 14:50 | |
S1 (Minor) Solar Radiation Storm Subsides - 02 Jan 2016 | Saturday, January 2, 2016 - 12:59 | |
S1 (Minor) Solar Radiation Storm Warning Extended to 09/2359 UTC | Saturday, September 9, 2017 - 02:04 | |
S1 - Solar Radiation Storm Expected | Thursday, October 29, 2015 - 04:49 |