August 1 – 7, 2025

Solar activity forecast for the period August 1 – 7, 2025

Issued: 2025 Jul 31 2100 UTC

Activity level from Aug 1 to Aug 4: low to high
X-ray background flux (1.0-8.0 A): in the range B7.0-C7.0
Radio flux (10.7 cm): a fluctuation in the range 120-190 f.u.
Events: class C: 1-25/day, class M: 0-7/day, class X: 0-1/day, proton: 0-1/period
Relative sunspot number (Ri): in the range 40-190

Activity level from Aug 5 to Aug 7: low to high
X-ray background flux (1.0-8.0 A): in the range B6.0-C6.0
Radio flux (10.7 cm): a fluctuation in the range 110-180 f.u.
Events: class C: 1-25/day, class M: 0-6/day, class X: 0-1/day, proton: 0-1/period
Relative sunspot number (Ri): in the range 30-180

Jozef Lesko
Roztoky Observatory, Slovak Republic
https://roztoky.space/category/predpovede/
e-mail: safor (at) protonmail.ch

Geomagnetic activity forecast for the period August 1 – 7, 2025

Issued: 2025 Jul 31 2130 UTC

Quiet to active: Aug 1 – 7

Jozef Lesko
Roztoky Observatory, Slovak Republic
https://roztoky.space/category/predpovede/
e-mail: safor (at) protonmail.ch