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National Oceanic and Atmospheric Administration

Thursday, October 09, 2025 07:05:45 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

Time-lapse of Solar Cycle 25 displays increasing activity on the Sun

Time-lapse of Solar Cycle 25 displays increasing activity on the Sun
published: Friday, June 02, 2023 15:41 UTC

Time-lapse of Solar Cycle 25 displays increasing activity on the Sun

Courtesy of our partners at the National Environmental Satellite, Data, and Information Service (NESDIS), follow this link to see the time lapse and read about significant space weather events that have occurred since Solar Cycle 25 began.