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National Oceanic and Atmospheric Administration

Monday, April 07, 2025 22:27:33 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

G3 (Strong) Geomagnetic Storm Watch for 31 Dec

G3 (Strong) Geomagnetic Storm Watch for 31 Dec
published: Monday, December 30, 2024 17:07 UTC

A G3 (Strong) geomagnetic storm watch is in place for 31 Dec due to the anticipated arrival of a CME that left the Sun early on 29 Dec. Visit https://www.swpc.noaa.gov/products/forecast-discussion for updates and further details.