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Cycle 24 Firsts List
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Solar Cycle 24 "First" List

Here is a list of Solar Cycle 24 "firsts" in order to track the progression and timeline of SC24.

First "Magnetic Plage" of Cycle 24 - Dec 13, 2007
First "official" Cycle 24 Sunspot - Jan 4, 2008 (Sunspot 981)

First Solar Flux above 70 - Oct 11, 2008
First Solar Flux above 80 - Oct 26, 2009
First Solar Flux above 90 - Jan 11, 2010
First Solar Flux above 100 - Feb 13, 2011
First Solar Flux above 110 - Feb 14, 2011
First Solar Flux above 120 - Feb 18, 2011
First Solar Flux above 130 - Mar 5, 2011
First Solar Flux above 140 - Mar 6, 2011
First Solar Flux above 150 - Mar 7, 2011
First Solar Flux above 160 - Sept. 24, 2011
First Solar Flux above 200 -

First Sunspot Number above 11 - Jan 4, 2008
First Sunspot Number above 20 - Nov 12, 2008
First Sunspot Number above 30 - Sept 23, 2009
First Sunspot Number above 40 - Dec 19, 2009
First Sunspot Number above 50 - Feb 7, 2010
First Sunspot Number above 60 - Feb 7, 2010
First Sunspot Number above 70 - Feb 8, 2010
First Sunspot Number above 80 - Feb 13, 2011
First Sunspot Number above 90 - Feb 14, 2011
First Sunspot Number above 100 - Feb 15, 2011
First Sunspot Number above 125 - March 8, 2011
First Sunspot Number above 150 - April 13, 2011
First Sunspot Number above 175 - Oct 20, 2011
First Sunspot Number above 200 - Oct 21, 2011
First Sunspot Number above 225 - Oct 22, 2013
First Sunspot Number above 250 - Nov 15, 2013

First Solar Flare above B-Class - Nov 2, 2008 (Sunspot 1007)
First Solar Flare above C-Class - Dec 11, 2008 (Sunspot 1009)
First Solar Flare above M-Class - Jan 19, 2010 (Sunspot 1041)
First Solar Flare above X-Class - Feb 14, 2011 (Sunspot 1158) - X2.2
First Solar Flare above X5+ - Aug 9, 2011 (Sunspot 1263) - X6.9
First Solar Flare above X10+ -

First CME produced by a Sunspot causing a true Geomagnetic Storm
April 5, 2010 (KP = 7)

First Solar Radiation Storm caused by a Solar Flare
August 14, 2010 (S1 level caused by C4.4 Flare)