These charts on this page resemble the progress of the solar cycle. The charts are updated every month by the SWPC with the latest ISES predictions. Observed values are initially temporary values that are replaced with the final data once it is available.
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03:39
May
23
2013
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Strong S3 class Space radiation storm - This happens around ten times in a solar cycle |
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15:42
May
22
2013
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Moderate S2 Space radiation storm - This happens around 25 times in a solar cycle |
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05:42
May
20
2013
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Moderately strong M1.77 solar flare |