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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G3 (Strong) Geomagnetic Storm levels reached with early CME arrival | Saturday, August 15, 2015 - 13:34 | |
G3 (Strong) Geomagnetic Storm Observed on 01 Dec | Wednesday, November 29, 2023 - 18:58 | |
G3 (Strong) Geomagnetic Storm Underway | Friday, September 12, 2014 - 23:29 | |
G3 (Strong) Geomagnetic Storm Warning Extended until 08/1500 UTC | Friday, September 8, 2017 - 06:17 | |
G3 (Strong) Geomagnetic Storm Watch Issued for 02-03 November, G2 (Moderate) Watch for 04 November | Saturday, October 31, 2015 - 19:51 |