Spaceweather.com reports that sunspot 3981 has produced more than 20M-class solar flares, including two that almost reached category X. The...
K7RA
Solar Update Report January 30, 2025 The sun has been moderately active this past week. The greater than 2 MeV...
Last week was pretty unremarkable as far as the Sun goes, but it looks like that is about to change....
Sorry to say this is the last ARRL Propagation Forecast Bulletin Iwill write. I took over in 1991 from Ed...
Solar activity was a bit weak during recent days. Average dailysunspot number was 159.1. During the previous week the average...
Currently a geomagnetic storm is raging. On January 1-2, Alaska'scollege A index reached 113. Predicted planetary A index is 12...
Strong solar activity continues, with worldwide propagation on 10and 12 meters quite commonplace. Predicted solar flux is 255, 250, 210,...
Solar activity seems to have dropped dramatically from a recent peak. Are we over the cycle peak and headed down...
ARRL Headquarters was closed on November 29. So, this regular Fridaybulletin was moved to the following Monday (12/2). Solar activity...
Solar activity was lower this reporting week, November 14-20, withthe average daily sunspot number down from 141.6 to 99.3, and...
Solar activity increased this week. Average daily sunspot number went from 127.7 to 197.4 and average solar flux from 170.5...
Although images of the sun this reporting week, July 21 to 27, showed plenty of sunspots, only two new spots...
