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  • Solar Disk 2014-08-01.jpg

    08/01/2014 | The K7RA Solar Update

    The K7RA Solar Update from Tad Cook, K7RA, in Seattle, Washington.
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  • Solar Flare

    12/06/2013 | The K7RA Solar Update

    Activity is on a slight rebound.
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  • latest080411

    08/05/2011 | The K7RA Solar Update

    Solar activity markedly increased this week, with the sunspot number rising to 130 on Monday, August 1 -- the highest since a reading of 131 on April 14, 2011. The average daily sunspot numbers more than doubled this week compared to last, rising nearly 5
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  • latest062311

    06/24/2011 | The K7RA Solar Update

    Over the past week -- June 16-22 -- the average daily sunspot number rose nearly 20 points to 55, while the average daily solar flux readings increased by nearly 9 points to 98.6. All geomagnetic indices declined slightly. These increases or decreases are
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  • latest051911

    05/20/2011 | The K7RA Solar Update

    We saw a decline in sunspot activity this week with a 23 point drop in the average daily sunspot numbers and a nearly 9 point decline in the average daily solar flux. These compare, of course, to the numbers for the previous reporting week, which always r
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  • latest031011.jpg

    03/11/2011 | The K7RA Solar Update

    Solar Cycle 24 continued its upward trend this week. The average daily sunspot number was more than double the value of the week before, rising from 50.9 to 114, while the average daily solar flux rose 44 percent, from 96.8 to 139.4. All this week through
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  • latest123110.jpg

    12/31/2010 | The K7RA Solar Update

    There were no sunspots for a full week, December 18-24. Christmas Day saw a return to sunspot activity, so the last two of those spotless days were in the Thursday through Wednesday reporting period in this bulletin, December 23-29. The average daily suns
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