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National Oceanic and Atmospheric Administration

Monday, April 07, 2025 22:06:07 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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G3 (Strong) Geomagnetic Storm Warning Extended until 08/1500 UTC

G3 (Strong) Geomagnetic Storm Warning Extended until 08/1500 UTC
published: Saturday, September 09, 2017 01:55 UTC

The G3 (Strong) geomagnetic storm warning has been extended through 1500 UTC (11:00 Eastern) on 08 September due to continued CME effects.