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National Oceanic and Atmospheric Administration

Monday, June 16, 2025 06:59:54 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 Storm Conditions Observed

G1 (Minor) Geomagnetic Storm Conditions Observed
published: Monday, October 16, 2017 06:09 UTC

G1 (Minor) Geomagnetic Storm Alerts were issued on 11-15 Oct due to influence from a recurrent, polar connected, positive polarity coronal hole high-speed stream. Stay tuned for additional updates as SWPC forecasters continue to respond to these geomagnetic storm conditions.