Occasional R1-R2 Events Remain Likely through 14 December
A few sunspot groups of note that have produced some R1-R2 activity since December 9th remain sources for additional activity. Visit our webpage for the latest forecasts and information.
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.
Occasional R1-R2 Events Remain Likely through 14 December