The ARRL Solar Update

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Solar activity is likely to continue at low levels with isolated to
occasional C-class flare activity, along with a slight chance for
R1-R2 (Minor-Moderate) M-class flare events, through September 25,
according to NOAA’s Space Weather Prediction Center. The SWPC reports
that nine sunspot regions are on the visible disk, including a new
Region 4541. There were three solar flares observed in the past …

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