Issued: 2025 June 19 17:00 UTC


Analysis from June 18/1700 UTC to June 19/1700 UTC:

Sunspot Regions on the Disk 19/1430 UTC (SDO Continuum): 7
The Largest Event: C8.0 from region 4114 at 19/0917 UT
X-ray background flux (1.0-8.0 A) June 18: C1.1
Radio Flux 10.7 cm at 18/2300 UTC (Penticton): 136
Solar Wind Speed at 19/1645 UTC: 502.3 km/s, density : 1.9 p/cm^3


Forecast:

Activity level will be: moderate - explanation
Event probabilities: Class C: 99%, Class M: 55%, Class X: 25%, Proton: 35%
X-ray background flux (1.0-8.0 A): in the range C1.0-C1.4
Radio Flux 10.7 cm: a fluctuation in the range 128-152

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