R2 (Moderate) HF Radio Blackout Observed
Active Region 3654 produced an M9.5 flare at 30/2346 UTC. Additional R1-2 (Minor-Moderate) radio blackout events from this particular region are likely over the next 24 hours.
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) HF Radio Blackout Observed