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Monday, August 18, 2025 14:59:55 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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G2 (Moderate) Geomagnetic Storm Conditions Met

G2 (Moderate) Geomagnetic Storm Conditions Met
published: Saturday, September 16, 2017 23:01 UTC

G2 (Moderate) geomagnetic storm conditions were met at 16/0533 UTC due to continued effects from a positive polarity coronal hole high speed stream.