Update: G1 (Minor) Geomagnetic Storm Watch for 23-24 February
A G1 (Minor) geomagnetic storm watch is in effect for 23-24 February, 2017 due to likely effects from an isolated, positive polarity coronal hole high speed stream (CH HSS).
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.
Update: G1 (Minor) Geomagnetic Storm Watch for 23-24 February