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National Oceanic and Atmospheric Administration

Friday, May 30, 2025 15:50:55 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 Watch Continues for 1-2 February

G1 Watch for 1 and 2 February
G1 (Minor) Storm Watch Continues for 1-2 February
published: Friday, February 03, 2017 05:12 UTC

The G1 (Minor) geomagnetic storm watch continues for the remainder of 1 February and was extended to include 2 February. Isolated periods of G1 storming are likely due to elevated solar wind speeds associated with a coronal hole high speed stream (CH HSS). Keep checking our SWPC website for the latest updates.