Previous SWPC news items.
NOAA Scales mini
R1 (Minor) Radio Blackout Impacts
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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Update: G2 (Moderate) Geomagnetic Storm Conditions Observed | Sunday, July 16, 2017 - 15:32 |
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G1 (Minor) Storm Conditions Observed, G2 (Moderate) Warning Issued - 16 July 2017 | Sunday, July 16, 2017 - 11:47 |
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Solar Wind Shock Observed - G1 (Minor) Geomagnetic Storm Warning Issued for 16-17 July 2017 | Sunday, July 16, 2017 - 05:45 |
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G2 (Moderate) Geomagnetic Storm Watch Issued - Valid for 16-17 Jul 2017 | Friday, July 14, 2017 - 11:52 |
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S1 (Minor) Solar Radiation Storm Conditions Observed - 14 July 2017 | Friday, July 14, 2017 - 05:40 |