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National Oceanic and Atmospheric Administration

Thursday, June 05, 2025 19:46:49 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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G1-Minor Geomagnetic Storms forecast for 02-04 October

G1-Minor Geomagnetic Storms forecast for 02-04 October
published: Sunday, October 04, 2015 23:38 UTC

G1-Minor Geomagnetic storm conditions are forecast for 02-04 October due to the combination of a coronal hole high speed stream and possible arrival of multiple CMEs from 30 Sep.