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National Oceanic and Atmospheric Administration

Saturday, July 26, 2025 18:12:53 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

X2.5 Flare from Region 3576

X2.5 Flare from Region 3576
published: Sunday, February 18, 2024 19:57 UTC

An impulsive X2.5 flare occurred from Region 3576. Stay tuned for updates.