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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, June 07, 2025 07:51:12 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

Summary of Space Weather Observations

The Summary of Space Weather Observations, issued daily at 0030 UTC, is a summary of the previous day's solar region observations.

Note: The summary consists of observations from approximately half a dozen observatories for each active region. The sunspot counts are typically higher than those reported in non-real time by the Sunspot Index Data Center (SIDC), Brussels, Belgium, and the American Association of Variable Star Observers.