X-class Flare Activity Observed - 18 January 2026
published: Sunday, January 18, 2026 18:29 UTC
Region 4341 produced an X1.9/3b flare (R3-Strong) at 18/1809 UTC.
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.