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
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Update: Geomagnetic Disturbance Weakening - 20 Sep 2015 | Sunday, September 20, 2015 - 14:10 |
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Update: G2 Geomagnetic Storm Alert Conditions Met Again | Monday, July 17, 2017 - 18:52 |
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UPDATE: G2 (Moderate) Watch in Effect for 4 and 5 June UTC day | Wednesday, June 1, 2016 - 16:06 |
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Update: G2 (Moderate) Storm WARNING in Effect until 05/1200 UTC | Wednesday, October 17, 2018 - 18:32 |
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UPDATE: G2 (Moderate) Geomagnetic Storm Warning Expired | Wednesday, January 21, 2015 - 16:23 |