Over the past week (August 25-31)
average daily sunspot numbers rose from 33.9 to 60.1, and average daily solar
flux increased from 79.6 to 87.9, compared to the previous seven days.
In fact, the average daily sunspot
number for August was 50.4, the highest since February, when it was 56.1.
The three month moving averages of
sunspot numbers for this year were 49, 45.3, 43.1, 35.4, 33 and 33.5.
Over the same period average
planetary A index declined from 9.7 to 8, and mid-latitude A index went from 8.7
to 6.9. That’s a nice combination, lower geomagnetic activity and higher solar
activity. As solar activity declines overall, there will be brief respites when
sunspots increase, but only temporarily,
Predicted solar flux is 100 on
September 2-4, 95 on September 5-8, 85, 78 and 80 on September 9-11, 82 on
September 12-16, 80 on September 17-21, 82 on September 22, 85 on September
23-25, 82 on September 26-27, 85 on September 28-29, 80 on September 30 and
October 1, 78 on October 2-7, 80 on October 8, and 82 on October 9-13.
Predicted planetary A index is 15
on September 2, 12 on September 3-4, 15 on September 5-6, 10 on September 7-8, 5
on September 9-12, then 10 and 8 on September 13-14, 5 on September 15-16, then
8, 5, 15, 12 and 8 on September 17-21, 5 on September 22-24, then 20, 18, 10,
15, 12, 10 and 8 on September 25 through October 1, 15 on October 2-3, 8 and 10
on October 4-5, and 5 on October 6-9.
More here:
http://www.arrl.org/news/the-k7ra-solar-update-441
