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National Oceanic and Atmospheric Administration

Wednesday, May 21, 2025 14:40:30 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

New NCEI Space Weather Portfolio of Archived Products

New NCEI Space Weather Portfolio of Archived Products
published: Wednesday, May 07, 2025 13:27 UTC

There is an updated overview of centuries of solar and space weather digital data - curated and/or generated, archived, and disseminated by NCEI, along with their new web access. The data was reorganized (see the NCEI Space Weather portfolio) and, also, the SWPC archive page was recently updated, backfilled, and received a new link: swpc products and data. Please visit the NCEI Space Weather archive site to take full advantage of this wonderful and ease of use.