G2 (Moderate) Geomagnetic Storm Watch for 19 Sep
A G2 (Moderate) geomagnetic storm watch has been issued for 19 September (UTC-day) due to a coronal mass ejection that was observed originating from a large filament eruption on 16 September.
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 for 19 Sep