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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, May 25, 2025 09:36:11 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

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Solar Wind
Solar Wind

The solar wind continuously flows outward from the Sun and consists mainly of protons and electrons in a state known as a plasma.

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