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National Oceanic and Atmospheric Administration

Thursday, January 09, 2025 08:06:23 UTC

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NOAA Scales mini

R1 (Minor) Radio Blackout Impacts
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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

R2 (Moderate) Radio Blackout Observed

R2
R2 (Moderate) Radio Blackout Observed
published: Wednesday, December 11, 2024 15:04 UTC

An M6.4 flare was observed at 10/0648 UTC from newly numbered Region 3922 near the east limb.