May 30 – June 5, 2025

Solar activity forecast for the period May 30 – June 5, 2025

Issued: 2025 May 29 2100 UTC

Activity level from May 30 to Jun 2: low to high
X-ray background flux (1.0-8.0 A): in the range B9.0-C9.0
Radio flux (10.7 cm): a fluctuation in the range 125-185 f.u.
Events: class C: 1-25/day, class M: 0-10/day, class X: 0-1/day, proton: 0-1/period
Relative sunspot number (Ri): in the range 45-180

Activity level from Jun 3 to Jun 5: low to high
X-ray background flux (1.0-8.0 A): in the range B9.0-C9.0
Radio flux (10.7 cm): a fluctuation in the range 120-180 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 40-175

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

Geomagnetic activity forecast for the period May 30 – June 5, 2025

Issued: 2025 May 29 2130 UTC

Quiet to active: Jun 3 – 5
Unsettled to minor storm: May 30 – Jun 2

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