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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G1 (Minor) Geomagnetic Storm Warning Issued | Thursday, September 14, 2017 - 14:59 | |
G1-Minor Storm Watch Issued for 16 Sep | Wednesday, September 13, 2017 - 22:03 | |
S1 Radiation Storm Warning extended | Wednesday, September 13, 2017 - 21:54 | |
G2 Watch issued for 13 September; G1 Watch issued for 14 September | Monday, September 11, 2017 - 20:10 | |
X8.2 (R3-Strong) X-Ray Event Observed at 10/1606 UTC. | Sunday, September 10, 2017 - 17:59 |