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06/30/2011 | Space Weather Prediction Center to Continue Broadcasts on WWV and WWVH
In April 2011, the Space Weather Prediction Center (SWPC) informed the public that as of September 6, 2011, it would no longer broadcast its geophysical alert message on WWV and WWVH. The ARRL has now learned that the SWPC has changed its mind and will ke
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04/25/2011 | Space Weather Prediction Center to Discontinue Broadcasts on WWV and WWVH
Beginning Tuesday, September 6, the Space Weather Prediction Center (SWPC) will cease broadcasting its geophysical alert message on WWV and WWVH. These messages inform listeners of the solar flux, the mid-latitude A and K indices and space weather storms,
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02/04/2011 | The K7RA Solar Update
The past week had one 0 sunspot day -- Thursday, January 27. Even though the activity came right back, the average daily sunspot number for the week fell more than 12 points to 20.1, and the average daily solar flux declined 2.7 points to 80.8. After the
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11/12/2010 | The K7RA Solar Update
Both the average daily sunspot numbers and solar flux increased over the past week, with sunspot numbers up 7.4 points to 33.1, and solar flux up 2.1 points to 84.2. Four new sunspot groups have appeared since November 4. For some reason, NOAA is currentl
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06/08/2010 | Space Weather and Solar Storms to be Topics at Upcoming Forum in Nation’s Capital
The National Space Weather Program Council will be conducting a forum in Washington, DC next month. The Space Weather Enterprise Forum, scheduled for June 8 at the National Press Club, will discuss how solar storms affect today’s technological society. Th
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05/07/2010 | The K7RA Solar Update
Sunspots made a strong return this week -- and so did geomagnetic activity. The average daily solar flux increased 4.2 points to 79.6; on Wednesday, May 5, the daily sunspot number reached 77, the highest in nearly four years. The sunspot number hasn’t be
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07/02/2009 | The K7RA Solar Update
It was a perfect Field Day weekend from where I stood. The weather was warm, skies clear, the space weather was calm and there was enough propagation to make a domestic contest interesting. I had no plans, so on Saturday I went to the ARRL Field Day Stati
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10/10/2008 | The K7RA Solar Update
A familiar sight appeared this week, as a sunspot emerged for one day, then was gone. Based on its magnetic polarity and high position in our Sun's southern hemisphere, sunspot 1003 was a new Solar Cycle 24 sunspot; like all the other recent sunspots, it
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