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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, June 09, 2025 20:39:05 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

Data Access

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SWPC Data Service

The SWPC Data Service offers text and image data for a variety of products.

*Most popular web browsers have dropped support for the FTP protocol. A separate FTP client should be used instead.

NCEI Space Weather Archive

The NOAA National Centers for Environmental Information (NCEI) serves as the official long-term archive for SWPC data products. NCEI has recently reorganized their Space Weather portfolio with improved access to centuries of Solar and Space Weather digital data that they curate, archive, and disseminate.

Visit the NCEI SWPC Products and Data Archive for comprehensive historical SWPC data access.