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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, June 10, 2025 02:03:17 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.
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Underway - System Testing and Maintenance

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Underway - System Testing and Maintenance
published: Tuesday, February 08, 2022 14:50 UTC

SWPC system testing and maintenance is underway and expected to end at 2330 UTC (1830 ET).  You may notice disruptions in products and services during this time.