UPDATE: G1 (Minor) Storm Observed at 31/0427 & 31/1120 UTC
UPDATE: G1 (Minor) geomagnetic storm levels were observed at 04:27 UTC and 11:20 UTC on 31 August due to coronal hole high speed stream activity.
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) Storm Observed at 31/0427 & 31/1120 UTC