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National Oceanic and Atmospheric Administration

Sunday, June 08, 2025 08:03:23 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.
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SWPC Returns to Normal Operations Following APS Migration Test

SWPC Returns to Normal Operations Following APS Migration Test
published: Tuesday, April 18, 2017 11:39 UTC

The transfer of operations to our off-site backup system was completed on Monday, 10 April 2017. SWPC ran on the backup system for three days and returned to normal operations today, 13 April at 1752 UTC (1:52 ET). Users likely experienced brief intermittent outages while systems were transitioned back to Boulder, however, all products should be back up and running properly.