The K7RA Solar Update (Apr 27, 2007)

Sunspots have reappeared over the past few days after six days of nothing. So far in April we’ve seen 18 days with zero spots, but a large sunspot, Number 953, now is rolling into view. A solar wind stream also is expected to hit Earth, causing a geomagnetic upset on Saturday, April 28. The Australian Space Forecast Centre predicts quiet-to-unsettled conditions April 27, active-to-minor storm conditions April 28, and active conditions April 29. The US Air Force predicts the planetary A index from April 27 through May 1 at 5, 25, 15, 10 and 8. Similar predictions from Geophysical Institute Prague give us quiet conditions April 27, active April 28, unsettled to active April 29, unsettled April 30, quiet to unsettled May 1, and back to quiet May 2-3.http://www.arrl.org/news/stories/2007/04/27/100/?nc=1

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