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Sunday, July 27, 2025 06:26:00 UTC

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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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Severe (G4) Geomagnetic Storms Observed - 24 March 2024

Severe (G4) Geomagnetic Storms Observed - 24 March 2024
published: Monday, March 25, 2024 17:38 UTC

The 23 March CME arrived at around 24/1411 UTC. Severe (G4) geomagnetic storming has been observed and is expected to continue through the remainder of the 24 March-UTC day and into the first half of 25 March.