G2 (Moderate) Geomagnetic Storm Watch Issued for 11 Sep
A G2 (Moderate) geomagnetic storm watch has been issued for 11 Sep 2018 due to the anticipated onset of coronal hole high speed stream.
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.
G2 (Moderate) Geomagnetic Storm Watch Issued for 11 Sep