Solar activity forecast for the period July 04 - July 05, 2025

Issued: 2025 July 03 17:00 UTC


Analysis from July 02/1700 UTC to July 03/1700 UTC:

Sunspot Regions on the Disk 03/1415 UTC (SDO Continuum): 9
The Largest Event: C2.0 from Region 4126 at 03/1815 UT
X-ray background flux (1.0-8.0 A) July 02: B7.0
Radio Flux 10.7 cm at 02/2300 UTC (Penticton): 129
Solar Wind Speed at 03/1645 UTC: 391.5 km/s, Density: 7 p/cm^3


Forecast:

activity level will be low
Event probabilities: Class C: 70, Class M: 30, Class X: 10, Proton: 05
X-ray background flux (1.0-8.0 A): in the range B6.5-B7.5
Radio Flux 10.7 cm: a fluctuation in the range 117-141

Karolína Knesplová
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz