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National Oceanic and Atmospheric Administration

Friday, September 12, 2025 19:00:16 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.
More about the NOAA Space Weather Scales

G1 Minor Storm levels reached

G1 Minor Storm levels reached
published: Wednesday, March 06, 2024 20:08 UTC

G1 (Minor) geomagnetic storm levels were reached at 03/1424 UTC (03/0924 EST) following the likely arrival of the CME that departed the Sun on 28 Feb. Conditions are expected to last through 03/2359 UTC (03/1859 EST). Continue to monitor our web page for updates.