X2.8 Flare from Old Region 3664
An X2.8 Flare from what we believe is old Region 3664 occurred at 27/0708 UTC. Due to its far SE location, energetic particles could take some time to arrive in the near Earth environment.
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.
X2.8 Flare from Old Region 3664