:Issued: 2025 Aug 26 1909 UTC
:Product: documentation at http://www.sidc.be/products/presto
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# FAST WARNING 'PRESTO' MESSAGE  from the SIDC (RWC-Belgium)         #
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The greater than 10 MeV proton flux has slightlly passed above the 10 pfu threshold,
reaching 11.3 pfu at 18:30 UTC. The proton levels started to slowly increase on 22
August (as the resul of a backsied CME on 21 August) and have gradually approcahed
the threshold. Since 25 August the levels were very close to the 10 pfu mark. The
flux will remain close to the threshold in the next hours, but no strong increases
are expected.
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