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 | ||
|---|---|---|
 |
G2 (Moderate) Geomagnetic Storm Conditions Observed | Sunday, March 18, 2018 - 21:15 |
 |
G1 Watch for 15 March, 2018 UTC | Monday, March 12, 2018 - 19:20 |
 |
G1 (Minor) Geomagnetic Storm Warning Issued - 10 Mar 2018 | Saturday, March 10, 2018 - 00:39 |
 |
It Is Time To Think About Spring Weather Hazards & Safety! | Thursday, March 1, 2018 - 16:32 |
 |
Production Systems Alternate Server Site Test on 5 March, 2018 | Wednesday, February 28, 2018 - 19:03 |