April 25 – May 1, 2025

Solar activity forecast for the period April 25 – May 1, 2025

Issued: 2025 Apr 24 2100 UTC

Activity level from Apr 25 to Apr 28: low to high
X-ray background flux (1.0-8.0 A): in the range C1.0-M1.0
Radio flux (10.7 cm): a fluctuation in the range 140-210 f.u.
Events: class C: 1-25/day, class M: 0-8/day, class X: 0-1/day, proton: 0-1/period
Relative sunspot number (Ri): in the range 50-205

Activity level from Apr 29 to May 1: low to high
X-ray background flux (1.0-8.0 A): in the range C1.0-M1.0
Radio flux (10.7 cm): a fluctuation in the range 140-210 f.u.
Events: class C: 1-25/day, class M: 0-8/day, class X: 0-1/day, proton: 0-1/period
Relative sunspot number (Ri): in the range 50-205

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

Geomagnetic activity forecast for the period April 25 – May 1, 2025

Issued: 2025 Apr 24 2130 UTC

Quiet to active: Apr 25 – 27
Unsettled to minor storm: Apr 28 – May 1

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