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National Oceanic and Atmospheric Administration

Wednesday, August 13, 2025 14:56:34 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

Network Maintenance: 22 May 2024

POSTPONED
Network Maintenance: 22 May 2024
published: Wednesday, May 22, 2024 21:54 UTC

Network upgrades are still possible WEDNESDAY, May 22, between 1400 UTC and 1900 UTC. 

This will primarily impact GOES and WCOSS model data (WAM, Geospace, WSA-Enlil), but other intermittent network instability is also possible. In the event of significant space weather activity, this maintenance will be postponed.

The proposed SWPC Network Outage for Monday, May 20, has been officially POSTPONED yet again. We will communicate the next possible date soon.