R2 (Moderate) Radio Blackout 31 January
Region 3978 produced a M6.6 flare at 31/1406 UTC, which is the first event reaching the R2 magnitude since 17 Jan. Additional R1-2 (Minor-Moderate) events are likely in the coming days.
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 31 January