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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G1-Minor geomagnetic Storm Conditions Observed | Thursday, September 28, 2017 - 02:28 |
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Coronal Hole High Speed Streams (CH HSS) | Monday, September 25, 2017 - 21:17 |
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Geomagnetic Storm Watches for 27 & 28 September | Sunday, September 24, 2017 - 23:01 |
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G1 (Minor) Geomagnetic Storm Conditions Observed | Monday, September 18, 2017 - 09:24 |
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G1 (Minor) Geomagnetic Storm Warning in effect through 17/0900 UTC | Saturday, September 16, 2017 - 23:05 |