There was a modest increase in solar activity this reporting week, May 4 – 10.
Average daily sunspot numbers nudged up from 114 to 119.3, and average daily solar flux went up from 151.5 to 167.1.
Average daily planetary A index changed from 13.6 to 15.1, and average middle latitude A index remained the same at 11.9.
Predicted solar flux is 170, 168, 166, 162, and 160 on May 11 – 15; 162 on May 16 – 17; 155 on May 18 – 21; 150 on May 22; 145 on May 23 – 25, then 140 and 145 on May 26 – 27; 155 on May 29 – 30; 160 on May 31 through June 1; 155 on June 2 – 3; 160 on June 4 – 7, then 165, 160, and 150 on June 8 – 10.
Predicted planetary A index is 46, 30, 12, and 8 on May 11 – 14; 5 on May 15 – 22, then 12 and 20 on May 23 – 24; 15 on May 25 – 26; 10 on May 27 – 28; 8 on May 29; 5 on May 30 through June 1, then 16, 12, 16, and 12 on June 2 – 5; 8 on June 6 – 8, and 5 on June 9 – 13.
Read about possible geomagnetic stormy space weather at:
https://www.space.com/sun-reverse-sunspot-auroras-supercharge.
Sunspot numbers for May 4 through 10, 2023, were 139, 90, 99, 99, 103, 151, and 154, with a mean of 119.3. 10.7-centimeter flux was 162, 161.9, 151.8, 157.2, 171.9, 194.7, and 170.1, with a mean of 167.1. Estimated planetary A indices were 6, 5, 30, 9, 16, 14, and 26, with a mean of 15.1. Middle latitude A index was 7, 4, 21, 8, 13, 11, and 19, with a mean of 11.9