Solar activity forecast for the period April 06 - April 07, 2025

Issued: 2025 April 05 17:00 UTC


Analysis from April 04/1700 UTC to April 05/1700 UTC:

Sunspot Regions on the Disk 05/1415 UTC (SDO Continuum): 10
The Largest Event: C5.7 from Region 4043 at 04/2338 UT
X-ray background flux (1.0-8.0 A) April 04: C1.1
Radio Flux 10.7 cm at 04/2300 UTC (Penticton): 181
Solar Wind Speed at 05/1645 UTC: 664.7 km/s, Density: 0.3 p/cm^3


Forecast:

activity level will be low
Event probabilities: Class C: 99, Class M: 35, Class X: 15, Proton: 10
X-ray background flux (1.0-8.0 A): in the range C1.0-C1.3
Radio Flux 10.7 cm: a fluctuation in the range 169-193

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