Long-duration R1 (Minor) Flare Occurred
A long-duration M4.2 flare was observed from Region 3575 in the SW quadrant.
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.
Long-duration R1 (Minor) Flare Occurred