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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G1 (Minor) - G2 (Moderate) Geomagnetic Storms Likely on 18-19 December | Thursday, December 17, 2015 - 16:55 | |
G1 (Minor) and G2 (Moderate) Geomagnetic Storm Conditions Observed on 05 May 2018 | Saturday, May 5, 2018 - 17:25 | |
G1 (Minor) and G2 (Moderate) Geomagnetic Storm Watches | Thursday, July 21, 2022 - 22:57 | |
G1 (Minor) Geomagnetic Storm Alert Issued | Saturday, May 27, 2017 - 23:09 | |
G1 (Minor) Geomagnetic Storm Alert Issued | Friday, June 16, 2017 - 09:17 |