R2 (Moderate) Radio Blackout Observed
An R2 (Moderate) radio blackout was observed at 29/04:38 UTC (28/23:38 Eastern) due to an M6.7 flare from Sunspot Region 3559. An S1 (Minor) solar radiation storm warning is in effect until 1800 UTC on 29 Jan.
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.
R2 (Moderate) Radio Blackout Observed