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National Oceanic and Atmospheric Administration

Monday, August 11, 2025 19:44:25 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

Ovation Model Showing Potential Aurora Borealis Viewing Locations
G1 (Minor) Geomagnetic Storm Conditions Observed
published: Monday, April 10, 2017 05:59 UTC

G1 (Minor) geomagnetic storm conditions were met at 09/0458 UTC (09/00:58 ET) due to the sustained southward Bz component of the interplanetary magnetic field (IMF). G1 (Minor) warning conditions are valid from 09/0130 to 09/1200 UTC. Stay tuned for updates as forecasters continue to monitor the solar wind environment.