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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UPDATE: G2 (Moderate) Geomagnetic Storm Warning Expired | Wednesday, January 21, 2015 - 16:23 | |
UPDATED - R2 (Moderate) Radio Blackout | Tuesday, January 13, 2015 - 11:27 | |
G1 Minor geomagnetic activity **UPDATE** | Monday, December 29, 2014 - 22:23 | |
Additional CME Activity | Tuesday, December 23, 2014 - 14:39 | |
Interplanetary Shock Arrived at ACE - Geomagnetic Disturbance in Progress | Sunday, December 21, 2014 - 21:26 |