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National Oceanic and Atmospheric Administration

Thursday, October 09, 2025 07:49:51 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

Service Interruption – Saturday, December 13th - COMPLETE

Service Interruption – Saturday, December 13th - COMPLETE
published: Friday, December 19, 2014 16:11 UTC

On Saturday, December 13th, SWPC operations were temporarily suspended due to facility power system maintenance.  The outage began at 5:00 AM and we were back online at 6:00 PM Mountain Standard Time.