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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Solar Wind Shock Observed - G1 (Minor) Geomagnetic Storm Warning Issued for 16-17 July 2017 | Sunday, July 16, 2017 - 05:45 | |
G2 (Moderate) Geomagnetic Storm Watch Issued - Valid for 16-17 Jul 2017 | Friday, July 14, 2017 - 11:52 | |
S1 (Minor) Solar Radiation Storm Conditions Observed - 14 July 2017 | Friday, July 14, 2017 - 05:40 | |
R1 (Minor) Radio Blackout Observed - 14 July 2017 | Friday, July 14, 2017 - 02:27 | |
R1 (Minor) Radio Blackout Observed - 09 July 2017 | Sunday, July 9, 2017 - 03:37 |