Solar activity forecast for the period June 15 - June 16, 2025

Issued: 2025 June 14 17:00 UTC


Analysis from June 13/1700 UTC to June 14/1700 UTC:

Sunspot Regions on the Disk 14/0730 UTC (SDO Continuum): 11
The Largest Event: M1.2 from Region 4105 at 13/2110 UT
X-ray background flux (1.0-8.0 A) June 13: B9.2
Radio Flux 10.7 cm at 13/2300 UTC (Penticton): 144
Solar Wind Speed at 14/1645 UTC: 487.8 km/s, Density: 2.7 p/cm^3


Forecast:

activity level will be low
Event probabilities: Class C: 99, Class M: 45, Class X: 20, Proton: 15
X-ray background flux (1.0-8.0 A): in the range B9.0-C2.0
Radio Flux 10.7 cm: a fluctuation in the range 132-156

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